IEEE Standard for Qualifying

Prévia do material em texto

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IEEE Power and Energy Society
Developed by the 
Nuclear Power Engineering Committee
IEEE Std 1682™-2023
(Revision of IEEE Std 1682-2011)
IEEE Standard for Qualifying 
Fiber Optic Cables, Connections, 
and Optical Fiber Splices for Use 
in Safety Systems in Nuclear 
Power Generating Stations
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IEEE Std 1682™-2023
(Revision of IEEE Std 1682-2011)
IEEE Standard for Qualifying
Fiber Optic Cables, Connections, 
and Optical Fiber Splices for Use 
in Safety Systems in Nuclear 
Power Generating Stations
Developed by the
Nuclear Power Engineering Committee
of the
IEEE Power and Energy Society
Approved 29 June 2023
IEEE SA Standards Board
Recognized as an American National Standard
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Abstract: The general requirements, directions, and methods for qualifying fiber optic cables, 
connections, and optical fiber splices for use in safety systems of nuclear power generating stations, 
including fuel reprocessing stations and other related installations, are provided in this standard. 
Cables, optical fibers, and splices within or integral to other devices (e.g., sensors, instruments, 
panels, etc.) shall be qualified using the requirements in the applicable device standard or IEC/
IEEE 60780- 323:2016, as appropriate. However, the requirements of this standard may be applied 
to the fiber optic cable and interfaces within these devices.
Keywords: Class 1E, connectors, fiber, fiber optic cable, fibers, IEEE 1682™, nuclear, optical fiber, 
safety, splices
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Copyright © 2023 by The Institute of Electrical and Electronics Engineers, Inc. 
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PDF: ISBN 979-8-8557-0134-0 STD26481
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information,coiled at least once at the in-service minimum bend radius of 
the cable unless otherwise justified. A baseline measurement of attenuation shall be recorded on every 
optical fiber in fiber optic cables and/or connections.
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IEEE Std 1682-2023
IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
25
Copyright © 2023 IEEE. All rights reserved.
b) Subject specimens to circulating-air-oven aging at a temperature and time developed using Arrhenius 
techniques, or another method of proven validity to simulate the thermal degradation that takes place 
during the qualified life. Thermal aging should be performed at the maximum humidity conditions 
specified for normal service conditions.
c) Samples shall be subjected to at least half the number of thermal cycles that simulate abnormal 
temperature cycles specified in the service conditions prior to accelerated thermal age-conditioning, 
and half after accelerated thermal age conditioning [see b)]. Each cycle shall consist of a temperature 
change in the environmental chamber, which equals the temperature difference between the lowest 
normal temperature and the highest abnormal temperature. These cycles shall allow adequate time for 
temperature stabilization at both extremes.
d) The samples with thermal conditioning as in b) shall be subjected to radiation conditioning in air to 
the total integrated dose expected from all sources in normal service during the qualified life. The 
samples shall be exposed to radiation at a rate higher than the maximum specified normal service and/
or accident dose rates at a temperature not to exceed the highest temperature expected during normal 
service and/or accident conditions respectively.
e) After the radiation exposure of d), a 3 m section of the exposed 100 m length of the fiber optic cable 
samples shall be straightened (if coiled), and then coiled with an inside diameter not exceeding the 
specified long term minimum bend radius of the cable to demonstrate a lack of brittleness and adequate 
flexibility. Fiber optic cables and connection assemblies shall be visually inspected for cracking. 
At a minimum, each connection assembly shall be subject to the number and sequence of connect-
disconnect cycles specified in the qualification plan.
f) Attenuation measurements shall be recorded for every optical fiber in aged fiber optic cables and/
or connection assemblies. Increase in measured attenuation compared to the baseline measurements 
made in a) shall not exceed limits established by the user or manufacturer.
g) Fiber optic cables and/or connection assemblies shall have passed this test if they exhibit no visual 
cracks or splits with the unaided eye.
6.5.3 Design basis event simulation
The user shall specify the parameters of the DBE(s), the optical and environmental parameters to be 
monitored, and the acceptance criteria for the anticipated applications. At a minimum, the DBE simulation and 
test procedures shall envelope the environmental and optical parameters and shall encompass the acceptance 
criteria. Performance may be assessed for the specific application instead of the cable and/or connection 
assembly’s ultimate capability. The samples need only be exposed to the environmental stressors applicable to 
the simulated DBE(s). Any specialized applications using these cables and/or connectors shall be specifically 
evaluated to define performance criteria. Prepare at least three samples of each type of fiber optic cable and/or 
connections so the effective length of each sample under test shall not be less than 100 m in accordance with 
the following procedure:
a) At least one specimen is to be unaged.
b) At least one specimen is to be thermally aged.
c) At least one specimen is to be thermally aged, and then radiation aged.
Consideration should be given to adding additional unaged and aged samples.
Time shall elapse following radiation exposure to help ensure that the fibers have sufficiently recovered. If the 
fibers had not sufficiently recovered prior to the simulated DBE, then an improvement in the attenuation of the 
fiber may occur during the test and invalidate the results of the simulated DBE test.
All specimens shall then be exposed to postulated DBE profiles.
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IEEE Std 1682-2023
IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
26
Copyright © 2023 IEEE. All rights reserved.
For fibers that exhibit greater levels of attenuation at higher dose rates and lower temperatures, sequential 
exposure to the radiation and the steam/temperature environment of the DBE may be performed.
Fiber optic cable and/or connection assemblies shall be monitored for optical performance during DBE 
simulation. Attenuation measurements shall be recorded for every optical fiber in aged fiber optic cables and/
or connection assemblies. Increase in measured attenuation compared to the baseline measurements made 
in list item a) of 6.5.2 shall not exceed limits established by the user or manufacturer. Optical performance 
monitoring should be performed at optical power levels not exceeding those intended during operation.
6.5.3.1 Temperature, pressure, humidity, and chemical spray for design basis event
Specimens subjected to a DBE involving application of temperature, pressure, humidity and/or chemical 
spray shall be tested in a pressure vessel constructed in such a way that the samples can be exposed to the 
environmental extremes of a DBE.
The chamber shall have provisions for monitoring and varying temperature and steam pressure, recycling 
chemical spray, and performance testing of specimens as specified herein. The specific chamber design is not 
considered critical to the test performance; however, to the extent practical, all cable surfaces shall be similarly 
exposed and the influence of bending losses due to thermal mismatches between the different materials 
involved should be accounted for. The samples should be coiled at least once at the in-service minimum bend 
radius of the cable, unless otherwise justified.
a) After the samples are installed inside the pressure vessel, the test vessel shall be stabilized at the pre-
DBE temperature for at least one hour prior to the start of the accident transient. Test specimens shall 
be monitored throughout the stabilization period. The samples shall be exposed to one full cycle of 
a DBE environment which, at a minimum, is as severe as the specified DBE profile with margin and 
inclusive of chemical sprays.
b) The samples shall function within the specified parameters, throughout the DBE simulation for the 
required operating time. Performance data shall be collected and recorded either continuously or 
at specified intervals throughout the test duration. If data is not continuously monitored, sampling 
intervals shall be sufficient to demonstrate compliance with the performance criteria. Performance 
criteria, such as the functional role of the jacket, shall be pertinent to sample construction and 
application.
Test duration is established based on the specified DBE environmental profile with due consideration for the 
post DBE decrease of some environmental parameters and required functionality in the post-DBE period. A 
basis for the post-DBE duration shall be established, recognizing that compression of that period may need to 
be accomplished for practical purposes. An approach such as the evaluation of equipment, which is required 
to remain operable in the long term, including the use of alternativemeans to maintain the reactor in safe 
condition, may provide a suitable basis for compression of the post-DBE duration. If not included in the 
service environmental conditions, margin shall be added (see IEC/IEEE Std 60780-323™-2016) to derive a 
test profile.
6.5.3.2 Vibration (non-seismic) aging
If required by the qualification specification, for connection assemblies only, vibration aging of in accordance 
with IEEE Std 344™-2013 and/or IEEE Std 382-2006 shall be performed as part of the type testing. When 
required, vibrational aging of connection assemblies shall be performed during the equipment qualification 
process to address the potential fatigue damage aging condition due to continuous in-service vibration (e.g., 
line mounted pipe vibration).
Vibration fatigue damage is the accumulated damage caused by cyclic or continuous stress-induced vibration 
loadings over the expected installed life of the equipment. Failure of a connector assembly may occur through 
the long-term exposure to fatigue damaging events, such as cyclic or continuous low amplitude random 
vibration associated with its in-service installation.
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IEEE Std 1682-2023
IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
27
Copyright © 2023 IEEE. All rights reserved.
During the equipment qualification process, in-service vibration conditions (if required) shall be addressed 
as a potential aging condition. The vibration aging test conditions used to simulate the in-service vibration 
conditions are normally defined in the form of a power spectral density (PSD) profile. The PSD profile 
expressed in g2/Hz versus frequency is used to define the acceleration waveform representing the in-service 
random vibration over a frequency range of interest. Along with PSD profile, a Grms (root-mean-square 
acceleration), intensity value (area under the PSD profile), and test time duration are also defined.
Accelerated vibration aging of in-service vibration conditions is performed when real-time testing is unfeasible 
or unrealistic. Accelerated vibration testing compresses the exposure to in-service vibration conditions 
into a reduced time period capable of being performed in a test facility. The accelerated vibration test shall 
conservatively simulate the damage potential of the PSD profile used to defining the real environment, but in 
a reduced amount of time.
Accelerated vibration testing requires time-based compression of the cumulative effects of vibrational aging to 
be conservatively addressed and quantified through cyclic fatigue damage. MIL-STD-810G (Environmental 
Engineering Considerations and Laboratory Tests, Revision G) provides an acceptable method for defining 
a material fatigue-based relationship over a time period as a result of vibration induced stress, as defined in 
Method 514.6 (Vibration), Annex A, Section 2.2 (Test Time Compression and the Fatigue Relationship). This 
accelerated approach is based on the Miner-Palmgren Rule for developing accelerated testing criteria. The 
Miner-Palmgren Rule is a commonly used simplified approach corresponding to a linear cumulative damage 
model for failures caused by fatigue. In this approach, fatigue behavior is quantified by knowing the slope of 
the S-N curve controlling the material associated with the potential fatigue failure. The S-N curve plots define 
the stress versus number of cycles required to cause product or material failure at each respective stress level. 
Using this approach, the vibration damage of equipment over its in-service life is quantified. In this approach, 
the vibration aging is accelerated such that the test duration decreases while the amount of fatigue damage 
remains the same. A mathematical expression of the Miner-Palmgren Rule follows:
 
 t 2 _ t 1 
 = 
 S 1 _ S 2 
 
m
 (1)
where
 t 1 is the equivalent test time
 t 2 is in-service test time for specified condition
 S 1 is the severity at test condition
 S 2 is the severity at in-service condition
 m is the value based on the slope of the S-N curve for the appropriate material, where S represents the 
stress amplitude, and N represents the mean number of constant amplitude load applications expected to 
cause failure
The accelerated vibration test shall be expressed in terms of the power spectral density function; therefore, 
Equation (1) can be formulated as:
 
 t 2 _ t 1 
 = 
W (f) 1 
 _ W (f) 2 
 
m/2
 (2)
where
 t 1 is the equivalent test time
 t 2 is in-service test time for specified condition
 W (f) 1 is the PSD at test condition, g2/Hz (or expressed in Grms)
 W (f) 2 is the PSD at in-service condition, g2/Hz (or expressed in Grms)
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IEEE Std 1682-2023
IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
28
Copyright © 2023 IEEE. All rights reserved.
 m is the value based on the slope of the S-N curve for the appropriate material, where S represents the 
stress amplitude, and N represents the mean number of constant amplitude load applications expected to 
cause failure
With test time-compression the PSD profile shape shall remain unchanged. The overall PSD profile will be 
increased along with the Grms intensity of the random motion which defines the severity level. Equation ) can 
be transformed into the following equation to define the compressed test time required based on amplifying 
the in-service PSD requirement.
 t 1 = t 2 × 
W (f) 2 
 _ W (f) 1 
 
m/2
 (3)
As previously stated, the value of “m” is based on the slope of the S-N curve. MIL-STD-810G states for a 
value of “m”, “Historically, a value of m = 7.5 has been used for random environments, but values between are 
commonly used.”
The test time-compression should not result in the PSD profile ratio (W (f) 2 / W (f) 1) being greater than a 1:4 
ratio. With the PSD profile ratio less than or equal to 1:4 and the value of “m” equal to 7.5 the equivalent test 
time can be calculated based on the in-service time. For example, a connector assembly can experience at 
its mounting location an in-service random vibration that produce a PSD profile with an intensity value of 
0.25 Grms constant over its entire 40 years (480 months) in-service life. In order to test for this condition, test 
time-compression may be performed. Based on a maximum PSD profile ratio of 1:4, the test PSD profile is 
overall increased to produce an intensity value of 1.0 Grms. Using Equation (3) the equivalent test time (t1) is 
calculated as follows:
 t 1 = 480 months × 0 . 25 Grms _ 1 . 0 Grms 
7.5/2
 = 2 . 652 months (4)
6.5.4 Seismic tests
Connection assemblies shall be seismically qualified using the test methods described in IEEE/IEC 60980-
344-2020. The connection assembly mounting for this test shall simulate the intended service configuration 
and installed conditions including consideration of external cabling. The vibrations shall be monitored and 
recorded. If the connection assembly shall function during the seismic event, performance shall be monitored 
for the required Class 1E function and required data shall be recorded before, during and after the test. Upon 
completion of seismic tests, functional tests described in 6.5.7 shall be performed, as applicable, and the test 
results shall be evaluated.
6.5.5 Other DBE tests
The effects of other DBEs, such as a HELB, shall be considered if they represent, as shown by analysis,additional severe hazards to the operation of the fiber optic cable and/or connection assemblies. LOCA 
simulation test profile may then be modified to include the effect of such DBEs, and a test procedure similar 
to that described in 6.5.3 is performed. Alternately, a separate test may be made to qualify for the additional 
severe conditions including post-DBE submergence. Functionality is typically proven over the course of the 
entire duration of submergence, as submergence cannot be accelerated via Arrhenius analysis. If not included 
in the service environmental conditions, margin shall be added (see IEC/IEEE Std 60780-323™-2016) to 
derive a test profile.
6.5.6 Design extension conditions
The qualification test program shall include, as appropriate, tests for environmental conditions that are beyond 
the design basis of the plant, such as extreme natural events and severe accidents. Severe accidents are more 
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IEEE Std 1682-2023
IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
29
Copyright © 2023 IEEE. All rights reserved.
severe than design basis events (DBEs) and may involve significant core degradation. The user shall determine 
the appropriate qualification approach to address any design extension conditions.
6.5.7 Post–design basis event simulation test
Upon completion of the DBE simulation, to demonstrate retention of a degree of flexibility and ability to 
withstand some movement and vibration, a 3 m section of the exposed 100 m length of the fiber optic cable 
samples shall be straightened (if coiled) and then coiled with an inside diameter not exceeding the specified 
long term minimum bend radius of the cable to demonstrate a lack of brittleness and adequate flexibility. Fiber 
optic cables and connection assemblies shall be visually inspected for cracking. Fiber optic cables and/or 
connection assemblies shall have passed this test if they exhibit no cracks or splits visible to the unaided eye.
NOTE—Lesser values of bend radius are more limiting with regard to cable functional capability.12
Fiber optic cable and/or connection assemblies shall subsequently be tested for optical performance. 
Attenuation measurements shall be recorded for every optical fiber in aged fiber optic cables and/or connection 
assemblies. Increase in measured attenuation compared to the baseline measurements made in list item a) of 
6.5.2 shall not exceed limits established by the user or manufacturer.
7. Qualification for normal and mild environments
Fiber optic cables and/or connection assemblies located in normal and mild environments shall be specified, 
designed, and selected to perform in their intended service conditions. This includes evaluating environmental 
conditions to determine if they are suitable as normal and mild environments, as defined by IEC/IEEE 60780-
323:2016. A qualified life is not required for cables and/or connection assemblies located in mild environments, 
and which have no significant aging mechanisms. Qualification for cables and/or connection assemblies 
located in mild environments shall be demonstrated by providing objective evidence that the cables and/or 
connection assemblies meet or exceed the specified requirements, including those requirements recognized by 
industry associations (e.g., Telecommunications Industry Association, IEC, ICEA).
Optical fibers may significantly degrade after exposure to levels of radiation that may be found in normal or 
mild environments. The qualifier should consider these effects.
8. Flame test qualification
Fiber optic cables shall not propagate flame, and shall be rated as such by passing the vertical tray flame 
propagation test requirements of IEEE Std 1202™-2006. In addition, the test shall include samples that have 
been aged and irradiated to the normal thermal and radiation levels of the plant environment per 6.5.2. Change 
in jacket color is considered a new design and shall be tested.
Fiber optic cables shall meet the requirements of IEEE Std 1202-2006.
For each family of products to be tested, sample selection shall be as follows:
a) Design with the smallest diameter, unaged
b) Design with the largest diameter, unaged
c) Design with the smallest diameter, aged per 6.5.2
d) Design with the largest diameter, aged per 6.5.2
12Notes in text, tables, and figures are given for information only and do not contain requirements needed to implement the standard.
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IEEE Std 1682-2023
IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
30
Copyright © 2023 IEEE. All rights reserved.
9. Documentation
9.1 General
Data used to demonstrate the qualification of fiber optic cables and/or connection, assemblies shall be 
organized in an auditable file or report and shall provide evidence that the range of cables and/or connection 
assemblies are qualified for the intended applications and meet specified performance requirements. The 
documentation shall include the following information:
Detailed description of the style and range of fiber optic cables and/or connection assemblies being qualified. 
The description shall identify the materials of construction, including any jackets, subunit jackets, buffer 
tubes, strength members, coatings, fillers and/or binder material.
a) Qualification plan or procedure (Clause 5)
b) Analysis of test anomalies and test data
c) Establishment of basis for successful qualification results and establishment of qualified life
d) Review/approval signatures and date
9.2 Type test documentation
9.2.1 Requirements
The type test documentation shall:
a) Demonstrate compliance with the relevant aspects of the qualification plan or specification (9.1).
b) Fully describe the test program, including test specimens, arrangements, simulated conditions, 
performance data, and results.
c) Evaluate the adequacy of the test results to establish qualification to the specified requirements.
9.2.2 Content
The type test documentation shall include, but not be limited to, the following information:
a) The physical arrangement of the specimens and test equipment description.
b) Time program and sequence of all environmental factors.
c) The type, location, and accuracy of all environmental and specimen monitoring sensors for each 
variable.
d) The optical inputs (source type, wavelength, power level).
e) The functional tests performed before and after the environmental exposures and during exposure (if 
tested).
f) Testing and examinations after DBE simulation.
g) Identification of measuring test equipment, including accuracy and date of calibration. Test results 
shall include an analysis of anomalies encountered during the test and their impact on the results. 
Test results shall also demonstrate whether the intended environmental sequences were achieved 
and whether the cable and/or connection assemblies demonstrated the ability to perform its intended 
function.
h) Evaluation of test data shall be made to determine the adequacy of a cable and/or connection 
assemblies performance.
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IEEE Std 1682-2023
IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
31
Copyright © 2023 IEEE. All rights reserved.
9.3 Documentation of qualification by methods other than type testing
Datato support qualification or to extend existing qualifications to a modified product using operating 
experience, analysis, or ongoing qualification data shall include the following, as applicable:
a) Available measured data
b) Past failure analysis and trends
c) Description of periodic maintenance and inspections
d) Description of expected service conditions
e) Applicability of the data and analysis to intended function
f) Program(s) to be followed to maintain qualification
g) Basis for continued applicability of previous testing to modified product
Documentation shall include the following:
— Demonstrate similarity between cables and/or connection assemblies that are being qualified and those 
cables and/or connection assemblies for which operating experience, analysis, or ongoing information 
is available
— Conclusion regarding qualified life
9.4 Traceability of materials
Specifications of detailed descriptions of materials used in construction of the fiber optic cables and/or 
connection assemblies shall be available and controlled to provide evidence the qualification results are 
directly applicable to all manufactured lots of the product.
10. Modifications
When there are changes in materials, the design of fiber optic cables and/or connection assemblies has 
changed, or in postulated environments where differences between these properties and those assumed in 
the qualification program have changed, prior qualification shall be reviewed to determine the effect on the 
qualification status. This review shall indicate whether additional type tests or supplemental analyses are 
required to establish the qualification for the modified product or conditions. This review shall also include the 
basis for the decision that additional type tests or supplemental analyses are, or are not, required by providing a 
detailed justification or analysis of the data that support the conclusion. The information shall be retained with 
the qualification documentation and can also be included as part of the auditable documentation as specified 
in 9.3.
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IEEE Std 1682-2023
IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
32
Copyright © 2023 IEEE. All rights reserved.
Annex A
(informative)
Cable families
Table A.1 shows a list of common cable types and fiber coating types that might be used in fiber optic cables. 
The intent of the table is not to limit fiber optic cable to the cable types or fiber coatings shown, but instead to 
show that each combination of cable type and fiber coating type represents a different family.
Table A.1—Common cable types and fiber coating types
Cable type Fiber coating and buffer types
Central loose tube 250 micron coated fiber
Stranded loose tube Ribbonized array of 250 micron fibers
Cordage (simplex or zipcord) 500 micron coated fiber
Breakout style 500 micron coated/ 900 micron buffered fiber
Single unit—distribution style 900 micron buffered fiber
Multi-unit—distribution style 250 micron coated fiber
A.1 Example of applicability of cable families
Type testing of a 2 fiber and a 24 fiber central loose tube cable with 250 micron coated fibers freely floating in 
a 4 mm gel filled polybutylene terephthalate (PBT ) tube is performed to qualify a family of central loose tube 
cable products that use identical materials of construction. All fiber counts between 2 fibers and 24 fibers of the 
same construction would be qualified.
Examples of cables with 2 fibers to 24 fibers that would NOT be qualified based on this type testing include 
the following:
a) Similar central tube construction without gel in the tube. (Cable type change—cable material change)
b) Central loose tube cable that was within the dimensional requirements of the 2 and 24 fiber cable but 
which used 500 micron coated fiber instead of 250 micron coated fibers. (Fiber coating/buffer type 
change)
c) Central loose tube cable that had a single 12 fiber ribbon instead of 12 loose 250 micron coated fibers. 
(Fiber coating/buffer type change)
d) Central loose tube cable where the 250 micron coated fibers freely float in a gel filled stainless steel 
tube instead of a plastic buffer tube. (Cable type change—cable material change)
e) Central loose tube cable where the 250 micron coated fibers freely float in a gel filled tube of a different 
plastic material. (Cable type change—cable material change)
f) Central loose tube cable where the tube was a different size than the low and high ends of the type 
tested cables. (Cable type change—cable design change)
g) Central loose tube cable where the jacket material in the outer jacket is different from the type tested 
cables. (Cable type change—cable material change)
h) Central loose tube cable where armor and an additional jacket are applied on the outside of the type 
tested cable construction. (Cable type change—cable design change)
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IEEE Std 1682-2023
IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
33
Copyright © 2023 IEEE. All rights reserved.
Annex B
(informative)
Bibliography
Bibliographical references are resources that provide additional or helpful material but do not need to be 
understood or used to implement this standard. Reference to these resources is made for informational use 
only.
[B1] ASTM E1614-94 (2004), Standard Guide for Procedure for Measuring Ionizing Radiation-Induced 
Attenuation in Silica-Based Optical Fibers and Cables for Use in Remote Fiber-Optic Spectroscopy and 
Broadband Systems.13
[B2] ASTM E1654-94 (2004), Standard Guide for Measuring Ionizing Radiation-Induced Spectral Changes 
in Optical Fibers and Cables for Use in Remote Raman Fiber Optic Spectroscopy.
[B3] DIN 58141-7 (1990–12), Testing of fibre optic elements; determination of tensile load of fibre optic 
cables.14
[B4] DIN 58141-8 (2011-03), Measurement of fibre optic elements—Part 8: Determination of the mechanical 
bending radius for short-term applications of light guide cables.
[B5] DIN 58142 (2006-02), Testing of fibre optic elements—Determination of the resistance against 
environmental conditions.
[B6] DIN EN 2591-617 (2002–12), Aerospace series—Elements of electrical and optical connection; Test 
methods—Part 617: Optical elements; Temperature cycling.
[B7] DIN EN 2591-6305 (2003-05), Aerospace series—Elements of electrical and optical connection; Test 
methods—Part 6305: Optical elements; Rapid change of temperature.
[B8] DIN EN 2591-6307 (2003-05), Aerospace series—Elements of electrical and optical connection; Test 
methods—Part 6307: Optical elements; Salt mist.
[B9] DIN EN 2591-6315 (2003-05), Aerospace series—Elements of electrical and optical connection; Test 
methods—Part 6315: Optical elements; Fluid resistance.
[B10] DIN EN 2591-6317 (2003-05), Aerospace series—Elements of electrical and optical connection; Test 
methods—Part 6317: Optical elements; Flammability.
[B11] DIN EN 2591-6318 (2003-05), Aerospace series—Elements of electrical and optical connection; Test 
methods—Part 6318: Optical elements; Fire resistance.
[B12] DIN EN 2591-6402 (2003-05), Aerospace series—Elements of electrical and optical connection; Test 
methods—Part 6402: Optical elements; Shock.
[B13] DIN EN 2591-6403 (2003-05), Aerospace series—Elements of electrical and optical connection; Test 
methods—Part 6403: Optical elements; Vibrations.
13ASTM publications are available from the American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, 
PA 19428-2959, USA (http:// www.astm .org/ ).
14DIN publications are available from DIN Deutsches Institut für Normung e. V., Am DIN-Platz, Burggrafenstraße 6, 10787 Berlin, 
Germany (http:// www .din .de/ ).
Authorized licensed use limited to: Instituto Nacional De Telecomunicações (INATEL). Downloaded on November 18,2024 at 12:50:38 UTC from IEEE Xplore. Restrictions apply. 
IEEE Std 1682-2023
IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
34
Copyright © 2023 IEEE. All rights reserved.
[B14] DIN EN 3745-504 (2003-05), Aerospace series—Fibres and cables, optical, aircraft use; Test methods—
Part 504: Micro bending test.
[B15] DIN EN 60793-1–54 (2004-05), Optical fibres—Part 1–54: Measurement methods and test 
procedures—Gamma irradiation.
[B16] DIN EN 61300-2–1 (2010-07), Fibre Optic interconnecting devices and passive components—Basic 
test and measurement procedures—Part 2–1: Tests—Vibration (sinusoidal) + Corrigendum.
[B17] DIN EN 61300-2–4 (1995-05), Fibre optic interconnecting devices and passive components—Basic 
test and measurement procedures—Part 2–4: Tests—Fibre/cable retention.
[B18] DIN EN 61300-2–21 (2010-08), Fibre optic interconnecting devices and passive components—Basic 
test and measurement procedures—Part 2–21: Tests—Composite temperature/humidity cyclic test.
[B19] DIN EN 61300-2–28 (1998-07), Fibre optic interconnecting devices and passive components—Basic 
test and measurement procedures—Part 2–28: Tests: Industrial atmosphere (sulphur dioxide).
[B20] DIN EN 61300-2–31 (1997–11), Fibre optic interconnecting devices and passive components—Basic 
test and measurement procedures—Part 2–31: Tests: Nuclear radiation.
[B21] DIN EN 61300-2–32 (1997–11), Fibre optic interconnecting devices and passive components—Basic 
test and measurement procedures—Part 2–32: Tests: Water vapour permeation.
[B22] DIN EN 61300-2–34 (2009–12), Fibre optic interconnecting devices and passive components—Basic 
test and measurement procedures—Part 2–34: Tests—Resistance to solvents and contaminating fluids of 
interconnecting components and closures.
[B23] DIN EN 61300-2–36 (1998-09), Fibre optic interconnecting devices and passive components—Basic 
test and measurement procedures—Part 2–36: Tests; flammability (fire hazard).
[B24] DIN EN 61300-2–45 (2000-09), Fibre optic interconnecting devices and passive components—Basic 
test and measurement procedures—Part 2–45: Tests; durability test by water immersion.
[B25] DIN EN 61300-2–48 (2009–12), Fibre optic interconnecting devices and passive components—Basic 
test and measurement procedures—Part 2–48: Tests—Temperature-humidity cycling.
[B26] DIN EN 62005-2 (2002-02), Reliability of fibre optic interconnecting devices and passive components—
Part 2: Quantitative assessment of reliability based on accelerated ageing test: Temperature and humidity; 
Steady state.
[B27] Report, E. P. R. I., TR-100367, Optical Fibers in Radiation Environments, February 1992.15
[B28] Report, E. P. R. I., TR-106820, Environmental Testing of Fiber Optic Components, December 1997.
[B29] Report, E. R. P. I., TR-107326, Fiber Optic Sensors in Nuclear Power Plant Radiation Environments, 
Phase I, February 1999.
[B30] Hayes, J., Fiber Optics Technician’s Manual, 3rd Ed., Thomson/Delmar Learning, 2006.
[B31] ICEA S-83-596-2001, Standard for Optical Fiber Premises Distribution Cable (ANSI).16
15EPRI publications are available from the Electric Power Research Institute, Inc., 3420 Hillview Avenue, Palo Alto, California 94304, 
USA (http:// my .epri .com/ ).
16ICEA publications are available from the Insulated Cable Engineers Association (https:// www .icea .org/ ).
Authorized licensed use limited to: Instituto Nacional De Telecomunicações (INATEL). Downloaded on November 18,2024 at 12:50:38 UTC from IEEE Xplore. Restrictions apply. 
IEEE Std 1682-2023
IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
35
Copyright © 2023 IEEE. All rights reserved.
[B32] ICEA S-104-696-2001, Standard for Indoor-Outdoor Optical Fiber Cable (ANSI).
[B33] IEC 60794-1–1 Optical fibre cables—Part 1–1: Generic specification – General - Edition 4.0 November 
2015.17
[B34] IEC 61300-2–1 Ed. 3.0 b:2009, Fibre optic interconnecting devices and passive components - Basic test 
and measurement procedures—Part 2–1: Tests - Vibration (sinusoidal), 08/18/2009.
[B35] IEC 61300-2–21 Ed. 2.0 b:2009, Fibre optic interconnecting devices and passive components - Basic test 
and measurement procedures—Part 2–21: Tests - Composite temperature/humidity cyclic test, 12/17/2009.
[B36] IEC 61300-2–28 Ed. 2.0 b:2013, Fibre optic interconnecting devices and passive components - Basic 
test and measurement procedures—Part 2–28: Tests - Corrosive atmosphere (sulphur dioxide), 07/16/2013.
[B37] IEC 61300-2–34 Ed. 2.0 b:2009, Fibre optic interconnecting devices and passive components - Basic 
test and measurement procedur—Part 2–34: Tests - Resistance to solvents and contaminating fluids of 
interconnecting components and closures, 05/13/2009.
[B38] IEC 61300-2–4 Ed. 2.1 b:2020, Fibre optic interconnecting devices and passive components - Basic test 
and measurement procedures—Part 2–4: Tests - Fibre or cable retention, 01/23/2020.
[B39] IEC 61300-2–45 Ed. 1.0 b:1999, Fibre optic interconnecting devices and passive components - Basic 
test and measurement procedures—Part 2–45: Tests - Durability test by water immersion, 05/21/1999.
[B40] IEC 61300-2–48 Ed. 2.0 b:2009, Fibre optic interconnecting devices and passive components - Basic 
test and measurement procedures—Part 2–48: Tests - Temperature-humidity cycling, 03/05/2009.
[B41] IEC 61757:2018 Fibre optic sensors—Generic specification 2018–01–25.
[B42] IEC 61757-1–1:2020 Fibre optic sensors—Part 1–1: Strain measurement - Strain sensors based on fibre 
Bragg gratings 2020–03–27.
[B43] IEC 61757-2–1:2021 Fibre optic sensors—Part 2–1: Temperature measurement - Temperature sensors 
based on fibre Bragg gratings 2021–07–28.
[B44] IEC 61757-2–2:2016, Fibre optic sensors—Part 2–2: Temperature measurement - Distributed sensing 
2016–05–12.
[B45] IEC 61757-4–3:2020 Fibre optic sensors—Part 4–3: Electric current measurement - Polarimetric 
method 2020–07–30.
[B46] IEC 61757-5–1:2021 Fibre optic sensors—Part 5–1: Tilt measurement - Tilt sensors based on fibre 
Bragg gratings 2021–07–07.
[B47] IEC 62005-2 Ed. 1.0 b:2001, Reliability of fibre optic interconnecting devices and passive components—
Part 2: Quantitative assessment of reliability based on accelerated ageing test - Temperature and humidity; 
steady state, 03/07/2001.
[B48] IEC 62005-9–2 (2005–10), Fibre optic interconnecting devices and passive components—Reliability 
of fibre optic interconnecting devices and passive optical components—Part 9–2: Reliability qualification for 
fibre optic connector sets.
17IEC publications are available from the International Electrotechnical Commission (https:// www .iec .ch) and the American National 
Standards Institute (https:// www .ansi .org/ ).
Authorized licensed use limited to: Instituto Nacional De Telecomunicações (INATEL). Downloaded on November 18,2024 at 12:50:38 UTC from IEEE Xplore. Restrictions apply. 
IEEE Std 1682-2023
IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
36
Copyright © 2023 IEEE. All rights reserved.
[B49] IEC 62005-9–2 (2007-05), Reliability of fibre optic interconnecting devices and passive connection 
assemblies—Reliability of fibre optic interconnecting devices and passive optical connection assemblies—
Part 9–2: Reliability qualification for fibre optic connector sets.
[B50] IEC/TR 62283 (2010-06), Optical fibres—Guidance for nuclear radiation tests.
[B51] IEEE Std 1™−2000, IEEE Recommended Practice - General Principles for TemperatureLimits in the 
Rating of Electrical Equipment and for the Evaluation of Electrical Insulation.18,19
[B52] IEEE Std 99™-2019, IEEE Recommended Practice for the Preparation of Test Procedures for the 
Thermal Evaluation of Insulation Systems for Electrical Equipment.
[B53] IEEE Std 336™-2020, IEEE Recommended Practice for Installation, Inspection, and Testing for Class 
1E Power, Instrumentation, and Control Equipment at Nuclear Facilities.
[B54] IEEE Std 338™-2012, IEEE Standard Criteria for the Periodic Surveillance Testing of Nuclear Power 
Generating Station Safety Systems.
[B55] IEEE Std 352™-2016, IEEE Guide for General Principles of Reliability Analysis of Nuclear Power 
Generating Station Safety Systems.
[B56] IEEE Std 382™-2019, IEEE Standard for Qualification of Safety-Related Actuators for Nuclear Power 
Generating Stations and Other Nuclear Facilities.
[B57] IEEE Std 383™-2015, IEEE Standard for Qualifying Class 1E Electric Cables and Field Splices for 
Nuclear Power Generating Stations.
[B58] IEEE Std 572™-2019, IEEE Standard for Qualification of Class 1E Connection Assemblies for Nuclear 
Power Generating Stations.
[B59] IEEE Std 577™-2012, IEEE Standard Requirements for Reliability Analysis in the Design and Operation 
of Safety Systems for Nuclear Facilities.
[B60] IEEE Std 603™-2018, IEEE Standard Criteria for Safety Systems for Nuclear Power Generating 
Stations.
[B61] IEEE Std 690™-2018, IEEE Standard for the Design and Installation of Cable Systems for Class 1E 
Circuits in Nuclear Facilities.
[B62] IEEE Std 1120™-2004, IEEE Guide for the Planning, Design, Installation, and Repair of Submarine 
Power Cable Systems.
[B63] IEEE Std 1428™-2004, IEEE Guide for Installation Methods for Fiber-Optic Cables in Electric Power 
Generating Stations and in Industrial Facilities.
[B64] IEEE Std P1580™-2022, IEEE Approved Draft Recommended Practice for Marine Cable for Use on 
Shipboard and Fixed or Floating Marine Platforms.
[B65] ITU Recommendation ITU-T G.651.1 SERIES G: TRANSMISSION SYSTEMS AND MEDIA, 
DIGITAL SYSTEMS AND NETWORKS Transmission media and optical systems characteristics – Optical 
18IEEE publications are available from the Institute of Electrical and Electronics Engineers, Inc., (http:// standards .ieee .org/ ).
19The IEEE standards or products referred to in this clause are trademarks of the Institute of Electrical and Electronics Engineers, Inc.
Authorized licensed use limited to: Instituto Nacional De Telecomunicações (INATEL). Downloaded on November 18,2024 at 12:50:38 UTC from IEEE Xplore. Restrictions apply. 
IEEE Std 1682-2023
IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
37
Copyright © 2023 IEEE. All rights reserved.
fibre cables: “Characteristics of a 50/125 μm multimode graded index optical fibre and cable,” November, 
2018.20
[B66] ITU Recommendation ITU-T G.652, “TELECOMMUNICATION STANDARDIZATION SECTOR 
OF ITU SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS, 
Transmission media and optical systems characteristics – Optical fibre cables Characteristics of a single-mode 
optical fibre and cable,” 11/2016.
[B67] ITU Recommendation ITU-T G.657, SERIES G: TRANSMISSION SYSTEMS AND MEDIA, 
DIGITAL SYSTEMS AND NETWORKS Transmission media and optical systems characteristics – Optical 
fibre cables: “Characteristics of a bending loss insensitive single mode optical fibre and cable for the access 
network,” 11/2016.
[B68] NFPA 70-2020, National Electrical Code (NEC®).21
[B69] NFPA 262, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-
Handling Spaces, (formerly UL 910, Standard for Safety Test for Flame-Propagation and Smoke-Density /EN 
60794-1-1 Values for Electrical and Optical-Fiber Cables Used in Spaces Transporting Environmental Air), 
2019.
[B70] Ott, M. N., “Radiation effects data on commercially available optical fiber: database summary,” 
Radiation Effects Data Workshop, 2002 IEEE, pp. 24–31, 2002, http:// dx .doi .org/ 10 .1109/ REDW .2002 
.1045528.
[B71] TIA TIA-455-72 FOTP- 72 Procedure for Assessing Temperature and Humidity Cycling Exposure 
Effects on Optical Characteristics of Optical Fibers, October 1997 (R 2013).22
[B72] TIA/EIA-455-73–97 FOTP-73, Procedure for Measuring Temperature and Humidity Cycling Aging 
Effects on Mechanical Characteristics of Optical Fibers, October 1997 (R 2013).
[B73] TIA-455-11-D FOTP-11 Vibration Test Procedure for Fiber Optic Components and Cables 11/18/2010 
(R 2014).
[B74] TIA-455-33-B, Optical Fiber Cable Tensile Loading and Bending Test, January 2005. (R 2013).
[B75] TIA-455-64 FOTP-64, Procedure for Measuring Radiation-Induced Attenuation in Optical Fibers and 
Optical Cables (ANSI) March, 1998.
[B76] TIA-455-72 FOTP-72, Procedure for Measuring Temperature and Humidity Cycling Aging Effects on 
Optical Characteristics of Optical Fibers (R2001) (ANSI) October 1997.
[B77] TIA-455-73 FOTP-73, Procedure for Measuring Temperature and Humidity Cycling Aging Effects on 
Mechanical Characteristics of Optical Fibers (ANSI) October 1997.
[B78] TIA-455-78 - IEC-60793-1-40 Optical Fibres - Part 1–40: Measurement Methods and Test Procedures- 
Attenuation, December 3, 2020.
[B79] TIA-4720000 Generic Specification for Fiber Optic Cable, November 1993 ANSI approval withdrawn, 
March 2004.
20ITU-T publications are available from the International Telecommunications Union (https:// www .itu .int/ ).
21NFPA publications are published by the National Fire Protection Association (https:// www .nfpa .org/ ).
22TIA publications are available from the Telecommunications Industry Association (https:// www .tiaonline .org/ ).
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IEEE Std 1682-2023
IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
38
Copyright © 2023 IEEE. All rights reserved.
[B80] TIA-4920000 Generic Specification for Optical Fibers Includes all amendments and changes 
through Reaffirmation Notice, September 2002.
[B81] TIA-492A000, Sectional Specification for Class Ia Graded-Index Multimode Optical Fibers Includes 
all amendments and changes through Reaffirmation Notice, September 2002.
[B82] TIA-492AA00, Blank Detail Specification for Class Ia Graded-Index Multimode Optical Fibers 
Includes all amendments and changes through Reaffirmation Notice, September 2002.
[B83] TIA-492AAAA, Detail Specification for 62.5-μm Core Diameter/125-μm Cladding Diameter Class Ia 
Graded-Index Multimode Optical Fibers Revision B, November 1997.
[B84] TIA-492AAAB, Detail Specification for 50-μm Core Diameter/125-μm Cladding Diameter Class Ia 
Graded-Index Multimode Optical Fibers, Revision A, November 2009 Revision A, November 1997.
[B85] TIA-492AAAC, Detail Specification for 850-nm Laser- Optimized, 50-μm Core Diameter/125-μm 
Cladding Diameter Class Ia Graded-Index Multimode Optical Fibers Revision A, January 1998.
[B86] TIA-492AAAD, Detail Specification for 850-nm Laser- Optimized, 50-μm Core Diameter/125-μm 
Cladding Diameter Class la Graded-Index Multimode Optical Fibers Suitable for Manufacturing OM4 Cabled 
Optical Fiber, Revision B, November 2009.
[B87] TIA-492AAAE, Detail Specification for 50-μm Core Diameter/125-μm Cladding Diameter Class 1a 
Graded-Index Multimode Optical Fibers with Laser-Optimized Bandwidth Characteristics Specified for 
Wavelength Division Multiplexing, June 2016.
[B88] TIA-492AAAF, Detail Specification for Class 1a Graded- Index Multimode Optical Fibers; Modification 
of IEC 60793-2-10:2019, Optical Fibres- Part 2–10: Product Specifications- Sectional Specification for 
Category A1 Multimode Fibres, Revision B, November 2009.
[B89] TIA-492C000, Sectional Specification for Class IVaDispersion-Unshifted Single-Mode Optical 
Fibers Includes all amendments and changes through Reaffirmation Notice, September 2002, 2009 Edition, 
September 2009.
[B90] TIA-492CA00, Blank Detail Specification for Class IVa Dispersion-Unshifted Single Mode Optical 
Fibers Includes all amendments and changes through Reaffirmation Notice, September 2002, 2016 Edition, 
June 2016.
[B91] TIA-492CAAA, Detail Specification for Class IVa Dispersion-Unshifted Single-Mode Optical Fibers 
Includes all amendments and changes through Reaffirmation Notice, September 2002, 2020 Edition, April 
2020.
[B92] TIA-492CAAB, Detail Specification for Class IVa Dispersion-Unshifted Single-Mode Optical Fibers 
with Low Water Peak. Includes all amendments and changes through Reaffirmation Notice, May 10, 2005, 
1998 Edition, January 1998.
[B93] TIA-492CAAC, Sectional Specification for Class B Single-Mode Optical Fibers 1998 Edition, January 
1998.
[B94] TIA-492E000, Sectional Specification for Class IVd Nonzero-Dispersion Single-Mode Optical Fibers 
for the 1550 nm Window. Includes all amendments and changes through Reaffirmation Notice, September 
2002, May 1998.
Authorized licensed use limited to: Instituto Nacional De Telecomunicações (INATEL). Downloaded on November 18,2024 at 12:50:38 UTC from IEEE Xplore. Restrictions apply. 
IEEE Std 1682-2023
IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
39
Copyright © 2023 IEEE. All rights reserved.
[B95] TIA-492EA00, Blank Detail Specification for Class IVd Nonzero-Dispersion Single-Mode Optical 
Fiber for the 1550 nm Window, Includes all amendments and changes through Reaffirmation Notice, 
September 2002, 1996 Edition, November 1996, 23 August, 2000.
[B96] TIA-568.3, Optical Fiber Cabling and Components Standard, Includes all amendments and changes 
through Addendum 1, January 17, 2019, Revision D, October 25, 2016, 2020 Edition, April 27, 2020.
[B97] TIA-569-B, Commercial Building Standard for Telecommunications Pathways and Spaces, May 2019.
[B98] TIA-598, Optical Fiber Cable Color Coding, Includes Addendums 1 & 2, Revision D, July 9, 2014.
[B99] UL 1581-2021, UL Standard for Safety, Reference Standard for Electrical Wires, Cables, and Flexible 
Cords, with revisions through June, 2021, ANSI Approved, 2021.
[B100] UL 1666-2007, UL Standard for Safety, Test for Flame Propagation Height of Electrical and Optical-
Fiber Cables Installed Vertically in Shafts, February, 2007, ANSI approved Sept 2021.
[B101] UL 2024-2004, UL Standard for Safety Cable Routing Assemblies and Communications Raceways - 
Fifth Edition; Reprint with revisions through and including November 17, 2021.
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RAISING THE 
WORLD’S 
STANDARDS 
 
Connect with us on: 
Twitter: twitter.com/ieeesa 
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Beyond Standards blog: beyondstandards.ieee.org 
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	IEEE Std 1682™-2023 Front cover
	Title page
	Important Notices and Disclaimers Concerning IEEE Standards Documents
	Participants
	Introduction
	Contents
	1. Overview
	1.1 Scope
	1.2 Purpose
	1.3 Word usage
	2. Normative references
	3. Definitions, acronyms, and abbreviations
	3.1 Definitions
	3.2 Acronyms and abbreviations
	4. Principle qualification criteria
	5. Principles of qualification
	5.1 General
	5.2 Qualification by type testing
	5.3 Qualification by operating experience
	5.4 Qualification by analysis
	5.5 Extending qualified life
	5.6 Combined qualification
	6. Qualification by type testing methods
	6.1 General
	6.2 Type test sample selection
	6.3 Description of fiber optic cables and connection assemblies
	6.4 Age conditioning
	6.5 Test procedures
	7. Qualification for normal and mild environments
	8. Flame test qualification
	9. Documentation
	9.1 General
	9.2 Type test documentation
	9.3 Documentation of qualification by methods other than type testing
	9.4 Traceability of materials
	Annex A (informative) Cable families
	A.1 Example of applicability of cable families
	Annex B (informative) Bibliography
	Back coveror advice pertaining to IEEE Standards documents.
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5
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IMPORTANT NOTICE
Technologies, application of technologies, and recommended procedures in variousindustries evolve over 
time. The IEEE standards development process allows participants to review developments in industries, 
technologies, and practices, and to determine what, if any, updates should be made to the IEEE standard. 
During this evolution, the technologies and recommendations in IEEE standards may be implemented in ways 
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Other information about safety practices, changes in technology or technology implementation, or impact 
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7
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Participants
At the time this standard was completed, the Qualification of Fiber Optic Cables Working Group had the 
following membership:
Jan Pirrong, Chair
Steve Benson
Lawrence Cunningham
Shenjie Gu
Kenneth Kettle
Drew Mantey
Matthew McConnell
Tomas Nalsen
Jonathan Pirrong
Eric Rasmussen
Mitch Staskiewicz
The following members of the individual Standards Association balloting group voted on this standard. 
Balloters may have voted for approval, disapproval, or abstention.
S. Aggarwal
Kenneth Bow
Thomas Brewington
Keith Bush
William Byrd
Suresh Channarasappa
Lawrence Cunningham
Kurniawan Diharja
Richard Ellis
Matthew Evans
Tim Fallesen
Stephen Fleger
Carl Fredericks
Shubhanker Garg
Steven Graham
Daryl Harmon
Werner Hoelzl
Steven Karnyski
Kenneth Kettle
Robert Konnik
Thomas Koshy
Jacob Kulangara
Jinsuk Lee
Matthew McConnell
John Merando
Tomas Nalsen
Arthur Neubauer
James Parello
Bansi Patel
Howard Penrose
Jonathan Pirrong
Eric Rasmussen
Bartien Sayogo
Rebecca Steinman
Marek Tengler
Nijam Uddin
John Vergis
Detlef Wald
When the IEEE SA Standards Board approved this standard on 29 June 2023, it had the following membership:
David J. Law, Chair
Ted Burse, Vice Chair
Gary Hoffman, Past Chair
Konstantinos Karachalios, Secretary
Sara R. Biyabani
Doug Edwards
Ramy Ahmed Fathy
Guido R. Hiertz
Yousef Kimiagar
Joseph L. Koepfinger*
Thomas Koshy
John D. Kulick
Joseph S. Levy
Howard Li
Gui Lin
Johnny Daozhuang Lin
Xiaohui Liu
Kevin W. Lu
Daleep C. Mohla
Andrew Myles
Paul Nikolich
Annette D. Reilly
Robby Robson
Lei Wang
F.Keith Waters
Karl Weber
Philip B. Winston
Don Wright
*Member Emeritus
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8
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Introduction
This introduction is not part of IEEE Std 1682-2023, IEEE Standard for Qualifying Fiber Optic Cables, Connections, 
and Optical Fiber Splices for Use in Safety Systems in Nuclear Power Generating Stations.
This standard provides general requirements, directions, and methods for qualifying Class 1E fiber optic 
cables, terminations, field splices, connectors, and interfaces for service in nuclear facilities including power 
generating stations, fuel reprocessing stations, and other related installations.
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9
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Contents
1. Overview ................................................................................................................................................... 10
1.1 Scope .................................................................................................................................................. 10
1.2 Purpose ............................................................................................................................................... 10
1.3 Word usage ......................................................................................................................................... 10
2. Normative references ................................................................................................................................ 11
3. Definitions, acronyms, and abbreviations ................................................................................................. 11
3.1 Definitions .......................................................................................................................................... 11
3.2 Acronyms and abbreviations .............................................................................................................. 12
4. Principle qualification criteria ................................................................................................................... 12
5. Principles of qualification .......................................................................................................................... 13
5.1 General ............................................................................................................................................... 13
5.2 Qualification by type testing ............................................................................................................... 13
5.3 Qualification by operating experience ................................................................................................ 14
5.4 Qualification by analysis .................................................................................................................... 14
5.5 Extending qualified life ...................................................................................................................... 15
5.6 Combined qualification ...................................................................................................................... 15
6. Qualification by type testing methods ....................................................................................................... 16
6.1 General ............................................................................................................................................... 16
6.2 Type test sample selection .................................................................................................................. 16
6.3 Description of fiber optic cables and connection assemblies .............................................................. 18
6.4 Age conditioning ................................................................................................................................ 22
6.5 Test procedures ................................................................................................................................... 23
7. Qualification for normal and mild environments ....................................................................................... 29
8. Flame test qualification ............................................................................................................................. 30
9. Documentation .......................................................................................................................................... 30
9.1 General ............................................................................................................................................... 30
9.2 Type test documentation ..................................................................................................................... 30
9.3 Documentation of qualification by methodsother than type testing ................................................... 31
9.4 Traceability of materials ..................................................................................................................... 31
10. Modifications .......................................................................................................................................... 32
Annex A (informative) Cable families ............................................................................................................ 33
Annex B (informative) Bibliography ............................................................................................................. 34
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1. Overview
1.1 Scope
This standard provides requirements, directions, and methods for qualifying fiber optic cables, connections, 
and optical fiber splices for use in safety systems of nuclear power generating stations and other nuclear 
facilities. Cables, connections, optical fibers, and splices within or integral to other devices (e.g., sensors, 
instruments, panels, etc.) shall be qualified using the requirements in the applicable device standard or IEC/
IEEE 60780-323:2016, as appropriate. However, this standard’s requirements may be applied to the fiber 
optic cable, connections, and optical fiber splices within these devices.
1.2 Purpose
The principal purpose of this standard is to provide specific directions for the implementation of IEC/
IEEE 60780-323:2016 for qualification of fiber optic cables, including hybrid cables, connections, optical 
fiber splices, and environmental seals (related to cables as assemblies).
1.3 Word usage
The word shall indicates mandatory requirements strictly to be followed in order to conform to the standard 
and from which no deviation is permitted (shall equals is required to).6,7
The word should indicates that among several possibilities one is recommended as particularly suitable, 
without mentioning or excluding others; or that a certain course of action is preferred but not necessarily 
required (should equals is recommended that).
The word may is used to indicate a course of action permissible within the limits of the standard (may equals 
is permitted to).
6The use of the word must is deprecated and cannot be used when stating mandatory requirements, must is used only to describe 
unavoidable situations.
7The use of will is deprecated and cannot be used when stating mandatory requirements, will is only used in statements of fact.
IEEE Standard for Qualifying 
Fiber Optic Cables, Connections, 
and Optical Fiber Splices for Use 
in Safety Systems in Nuclear 
Power Generating Stations
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IEEE Std 1682-2023
IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
11
Copyright © 2023 IEEE. All rights reserved.
The word can is used for statements of possibility and capability, whether material, physical, or causal (can 
equals is able to).
2. Normative references
The following referenced documents are indispensable for the application of this document (i.e., they must 
be understood and used, so each referenced document is cited in text and its relationship to this document is 
explained). For dated references, only the edition cited applies. For undated references, the latest edition of the 
referenced document (including any amendments or corrigenda) applies.
IEC/IEEE 60780-323:2016, Nuclear Facilities-Electric Equipment important to safety—Qualification.
IEEE Std 98™-2002, IEEE Standard for the Preparation of Test Procedures for the Thermal Evaluation of Solid 
Electrical Insulating Materials.8,9
IEEE Std 101™-1987, IEEE Guide for the Statistical Analysis of Thermal Life Test Data.
IEEE Std 317™-2013 Electric Penetration Assemblies in Containment Structures for Nuclear Power 
Generating Stations.
IEEE Std 344™-2013, IEEE Recommended Practice for Seismic Qualification of Class 1E Equipment for 
Nuclear Power Generating Stations.
IEEE Std 1202™-2006, IEEE Standard for Flame-Propagation Testing of Wire and Cable.
IEEE Std 1205™-2014, IEEE Guide for Assessing, Monitoring, and Mitigating Aging Effects on Class 1E 
Equipment Used in Nuclear Power Generating Stations.
3. Definitions, acronyms, and abbreviations
3.1 Definitions
For the purposes of this document, the following terms and definitions apply. The IEEE Standards Dictionary 
Online should be consulted for terms not defined in this clause. 10
cable assembly: Fiber optic cables attached and interfaced to a connector, conduit seal, or sealing gland as an 
assembly. Cable assemblies are a type of connection assembly.
cable type: The basic configuration of a fiber optic cable, including but not limited to alternative fiber 
protection systems.
connection assembly interface: The mechanism by which a connection assembly mates with its host 
equipment. The connection assembly interface may be considered in the qualification specification/testing and 
includes attributes, such as mounting, sealing, use of conduit, and unsupported cable/conduit length.
connection assembly: Connectors, terminations, and environmental seals which may or may not be in 
combination with related fiber optic cables as assemblies.
8IEEE publications are available from The Institute of Electrical and Electronics Engineers, Inc., (http:// standards .ieee .org/ ).
9The IEEE standards or products referred to in this clause are trademarks of The Institute of Electrical and Electronics Engineers, Inc.
10IEEE Standards Dictionary Online is available at: http:// dictionary .ieee .org. An IEEE account is required for access to the dictionary, 
and one can be created at no charge on the dictionary sign-in page.
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IEEE Std 1682-2023
IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
12
Copyright © 2023 IEEE. All rights reserved.
elements: Materials included within fiber optic cable and/or connection assemblies. Examples include fillers 
in cables, adhesives used in splices, etc.
environmental seal: A device or system that restricts the passage of a gas or liquid through a boundary in 
conjunction with related cables or wires as an assembly.
families: Fiber optic cable and/or connection assemblies of similar design and construction.
fiber optic cable: A cable, containing one or more optical fibers, where the cable elements provide protection 
to the optical fiber(s) from stress during installation and from the environment once installed.
operating wavelength: The wavelength at which the fiber optic cable and/or connection assemblies is 
intended to be used.
optical fiber: A flexible, optically transparent fiber, usually made of glass or plastic, through which light is 
transmitted by successive internal reflections.
qualified condition: The condition of equipment prior to the start of design basis event, for which the 
equipment was demonstrated to meet the design requirements for the specified service conditions.
radiation induced attenuation: The increase in propagation losses caused by radiation exposure.
recovery: The reduction in the magnitude of signal attenuation following radiation exposure.
representative types: A family of fiber optic cables and/or connection assemblies used during qualification 
testing to represent a number of fiber opticcable and/or connection assembly types.
significant aging mechanism: An aging mechanism that, under normal and/or abnormal service conditions, 
causes degradation of equipment that progressively and appreciably renders the equipment vulnerable to 
failure to perform its safety function(s) during the design basis event conditions.
3.2 Acronyms and abbreviations
dB decibels
DBE design basis event
HELB high energy line break
LOCA loss of coolant accident
MSLB main steam line break
NA numerical aperture
PBT polybutylene terephthalate
4. Principle qualification criteria
It is required that Class 1E fiber optic cables and/or connection assemblies meet or exceed specified 
performance requirements throughout their installed life. This is accomplished, in part, by ensuring fiber optic 
cables and/or connection assemblies are manufactured in accordance with applicable industry standards and 
fiber optic cables and/or connection assemblies are subjected to quality assurance programs that include, but are 
not limited to, design, qualification, and production quality control. The qualification portion of the program is 
discussed in this standard. The other steps in the quality assurance program require strict control to help ensure 
that manufactured Connection Assemblies are generic and are suitably applied, installed, maintained, and, 
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IEEE Std 1682-2023
IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
13
Copyright © 2023 IEEE. All rights reserved.
where required, periodically tested. Maintenance of the qualification of connection assemblies may require 
action by the end user, such as replacement of glands or seals following disconnection in service. No specific 
condition monitoring activities for connection assemblies have been identified.
Testing of each connector assembly size and configuration is not required if qualification families are 
established by analysis based on the same generic design, use of the same production facilities, and production 
of the same thermal, electrical and mechanical stresses. Other IEEE standards, including IEC/IEEE 60780-
323-2016, IEEE Std 382™-2006 and IEEE Std 317™-2013, provide guidance.11
Qualification of connection assemblies may be required for mating to existing connection assemblies or 
connection assemblies provided by others. In these cases, the connection assembly shall be qualified with the 
actual mating connection assembly to be installed in service. Intermatability to other connectors shall not be 
assumed or based on manufacturer’s certifications.
The primary objective of qualification is to demonstrate with reasonable assurance that the fiber optic cable(s) 
and/or connection assemblies for which a qualified life or condition has been established can perform its 
safety function(s) without experiencing common-cause failures before, during, and after applicable design 
basis events.
Degradation with time followed by exposure to environmental extremes of temperature, pressure, humidity, 
radiation, vibration, and if applicable, chemical spray and submergence resulting from a design basis event 
(DBE), extreme natural events, and severe accident conditions (SAC), or a combination of these condition 
can precipitate common-cause failures of fiber optic cable and/or connection assemblies. For this reason, it is 
necessary to establish a qualified life for fiber optic cable and/or connection assemblies with significant aging 
mechanisms.
Documentation that demonstrates fiber optic cable and/or connection assemblies are qualified to perform 
Class 1E function(s), regardless of the qualification method(s) chosen, is required. The documentation shall be 
in an auditable form that allows verification by competent personnel other than the qualifier.
For all qualification programs, the result shall be the collection of documentation that demonstrates the fiber 
optic cable and/or connection assembly’s adequacy to perform its safety function(s).
5. Principles of qualification
5.1 General
The qualification of Class 1E fiber optic cables and/or connection assemblies shall be accomplished by using 
one or more of the methods described below.
A qualification plan or procedure shall be established which contains the specified performance requirements, 
environmental service conditions, design basis event (DBE) parameters, range of cables and/or connection 
assemblies being qualified, an explanation of the methodology and basis for establishing qualifications which 
can include a description of, and justification for, the analyses and operating experience used as part of the 
qualifications.
5.2 Qualification by type testing
Type testing fiber optic cable and/or connection assemblies is the preferred method of qualification. The 
tests shall simulate conditions that meet or exceed the specified service conditions at the location of the 
installed fiber optic cables and/or connection assemblies. Test samples shall be assembled using documented 
production or fabrication assembly methods and then subjected to the test program. The sample(s) shall be 
11Information on references can be found in Clause 2.
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IEEE Std 1682-2023
IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
14
Copyright © 2023 IEEE. All rights reserved.
selected at random if in production, or a prototype shall be manufactured and assembled using simulated 
production procedures. They shall be tested in a configuration and orientation that represents their most severe 
generic or plant-specific application. Qualification by type testing shall include the collection and analysis of 
data necessary to demonstrate the following:
a) The test sample is representative of fiber optic cables and/or connection assemblies in-plant 
applications.
b) The test conditions are at least as severe as the service conditions, plus margin, including DBEs, 
extreme natural events and severe accidents defined in the qualification plan.
c) The test data gathered relating to test sample performance factors are sufficient to enable the user to 
determine if the required safety functions can be achieved for the specific application(s).
5.3 Qualification by operating experience
Auditable operating experience data are best used to establish qualification for normal service conditions 
of fiber optic cables and/or connection assemblies, to determine extrapolation limits, failure modes, and 
failure rates, or to confirm prior conclusions regarding service condition effects. Operating experience data 
are generally of limited use when establishing qualification to DBE conditions; however, it may be used 
if the in-service samples have performed successfully during applicable DBE conditions after exposure to 
aging conditions. Documentation of the operating environment shall include details of physical location 
and installation-related information of the fiber optic cables and/or connection assemblies in the operating 
facilities. The fiber optic cable and/or connection assemblies shall be considered qualified by demonstrating 
the following:
a) The documented service conditions are at least as severe as the service conditions of the intended 
application.
b) The fiber optic cable and/or connection assemblies being qualified are representative of those in 
service.
c) The documented performance of the in-service fiber optic cable and/or connection assemblies is equal 
to or exceeds the specified performance requirements.
The qualification report shallidentify and justify any differences that exist in satisfying the above requirements.
The period of time for which this demonstration can be documented shall designate the qualified life of the 
product for the intended application.
5.4 Qualification by analysis
Qualification by analysis alone is not acceptable. Analysis shall be performed only as a supplement to type 
testing and/or operating experience for such purposes as the following:
a) Support test assumptions and results.
b) Evaluate test data.
c) Evaluate operating experience data.
d) Determine the cause of a test failure and, where justified, establish qualification to less-severe service 
conditions or acceptance criteria. When analysis is used to support qualification of fiber optic cables 
and/or connection assemblies to less-severe service conditions or acceptance criteria, the less-severe 
conditions or criteria shall be clearly delineated in the qualification report.
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IEEE Std 1682-2023
IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
15
Copyright © 2023 IEEE. All rights reserved.
e) Apply type-test results for in-plant application.
f) Augment a generic test to demonstrate that performance-related physical properties are similar, that 
the materials are compatible, and that the materials interact in a manner similar to those used on 
qualified fiber optic cable and/or connection assemblies.
g) Address modifications as described in Clause 10.
5.5 Extending qualified life
Qualified life may be extended by the use of ongoing qualification, including the methods discussed below:
a) Fiber optic cable and/or connection assemblies shall be qualified for an initial qualified life based on 
available data. During the qualified life period, other fiber optic cables and/or connection assemblies 
of the same type may be placed in a natural or accelerated aging environment that ages them under 
controlled conditions. These other test samples shall then be removed from the age-conditioning 
environment and type tested. Successful completion of the type test extends the qualified life by the 
additional aging period. This procedure may be repeated until the qualified life equals the required 
installed life or until the maximum life is reached. When fiber optic cable and/or connection assemblies 
are more robust than originally predicted for the specific installed environment, a demonstrated 
monitoring program that indicates discernable progression of degradation may be used to extend 
the qualified life of installed fiber optic cable and/or connection assemblies. This requires that the 
characteristic(s) subject to aging deterioration be monitored at specific intervals and evaluated against 
the specified acceptance criteria. The acceptance criteria shall be based on post–age- conditioning 
characteristics adequate for meeting the performance criteria for the qualified fiber optic cable and/or 
connection assemblies. Absence of a change beyond the acceptance criteria indicates that the qualified 
life of the fiber optic cable and/or connection assemblies may be extended by an interval dependent 
upon the remaining life and rate of degradation with due consideration to design basis event (DBE) 
and margin.
b) When a fiber optic cable and/or connection assembly are more robust than originally predicted, 
condition monitoring may be used in accordance with Annex C of IEEE Std 1205-2014. Demonstrated 
condition indicators may be selected on the relevant fiber optic DBE performance parameter.
Qualified life may be extended if it can be shown that the service or environmental conditions 
originally assumed were overly conservative with respect to the specific environmental conditions at 
the fiber optic cable and/or connection assembly’s location in its installed configuration.
For example, in fiber optic cables, spare fibers may be continuously monitored to identify the rate of 
degradation to produce supporting data for extending the life for normal operating environment. If the 
degradation from DBEs has been quantified in previously simulated tests, then it could be factored in 
for performance during and post DBE environments.
c) Qualified life may be extended by the periodic replacement of those connection assemblies or elements 
which have shorter lives.
The applicability of any of the above methods shall be justified. The specific program to be followed shall be 
documented, and auditable evidence of qualification status shall be maintained.
5.6 Combined qualification
Fiber optic cable and/or connection assemblies may be qualified by combinations of type test, documented 
previous operating experience, and analysis. Type tests and/or operating experience combined with analysis 
are examples of combined qualification. The qualification shall provide auditable data by which the combined 
methods can be shown to satisfy the requirements of the specified qualification program.
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IEEE Std 1682-2023
IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
16
Copyright © 2023 IEEE. All rights reserved.
6. Qualification by type testing methods
6.1 General
Type testing is the preferred method of demonstrating that fiber optic cables and/or connection assemblies are 
capable of meeting performance requirements under applicable service conditions. Margins shall be applied 
to type test parameters. These margins increase the severity of the test to assure conservatism. Guidance on the 
use and application of margin is contained in IEC/IEEE 60780-323:2016.
When considering application of margin, attention should be paid to certain aspects of fiber optic cables and 
connections. For example, for optical fibers, radiation induced attenuation generally varies inversely with 
temperature and directly with dose rate. Testing shall be performed at the operating wavelength. Testing 
should be performed at optical powers not exceeding that intended during operation and powers below the 
threshold that photo bleaching may occur.
Type testing shall be in accordance with a test plan (see IEC/IEEE 60780-323:2016). Satisfactory assessment 
of fiber optic cable and/or connection assemblies’ performance shall be accomplished by optical and physical 
measurements appropriate for the required service condition and for the type of fiber optic cable and/or 
connection assemblies being evaluated.
6.2 Type test sample selection
The samples selected for type testing shall be representative of the fiber optic cable and/or connection 
assemblies being qualified. The representative fiber optic cables and/or connection assemblies shall contain 
the following characteristics, as appropriate:
a) Manufactured by a specific manufacturer using the same processes and controls
b) Contains the same materials
c) Has the same methods of strain relief
d) Construction or configuration features that conservatively represent the features of the cable and/or 
connection assemblies being qualified
Samples shall be selected at random, if in production, or a prototype shall be manufactured. Fiber optic cables 
may be tested separately from connection assemblies where only fiber optic cables are exposed to DBE 
conditions. Where fiber optic cable and/or connection assemblies are exposed to DBE conditions, extreme 
natural events, and severe accidents shall both be tested, preferably as an assembly.
The following sections provide guidance on how qualification of fiber optic cable and/or connection assemblies 
may be extendedto families. The responsibility remains with the qualifier to provide in the qualification report 
justification for extension of the qualification.
6.2.1 Fiber optic cable
The fiber optic cable shall be type tested as a completed cable. Cable families vary in fiber counts, but the same 
basic cable type and materials, and may be qualified by type testing multiple samples within that family.
One cable to be type tested from the family shall represent the lowest fiber count and minimum nominal 
protective layer thickness allowed, and one cable to be type tested from the family shall represent the highest 
fiber count and maximum nominal protective layer thickness allowed. Protective layer thicknesses considered 
can include all layers. Cables that are considered part of a family have the same materials, methods of 
fabrication, and methods of strain relief. Annex A shows some of the considerations that should be taken into 
account when qualifying a family of cables.
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IEEE Std 1682-2023
IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
17
Copyright © 2023 IEEE. All rights reserved.
It should be noted that different types of optical fibers may vary in their aging effects and in the interactions 
with various coating and buffer materials. Special care should be taken to consider these synergistic effects in 
defining cable families.
6.2.1.1 Type tests which measure optical performance or signal integrity
For the purpose of optical performance and signal integrity type tests, qualification of a fiber optic cable family 
requires that the optical fibers throughout the family shall be identical to the type test samples including, but 
not limited to, the following characteristics:
— Core diameter
— Cladding diameter
— Numerical aperture (NA)
— Manufacturing process
— Optical fiber composition
— Coating materials
— Coating process
6.2.1.2 Sample size for optical type tests
As a minimum, fibers of sufficient length, 100 m or greater, from each cable sample shall be tested for the 
purpose of characterizing optical performance, such as attenuation, during the type test. Tests applicable to 
the mechanical integrity of the fiber optic, such as bending tests, shall utilize lengths 3 m or greater and fall 
within the 100 m or greater section of fiber optic cable under test. It is recommended that multiple duplicate 
fiber samples are utilized in order to achieve greater assurance as it relates to the reliability and repeatability 
of the test results.
6.2.1.3 Type tests which do not measure optical performance or signal integrity
Type tests which do not measure optical performance or signal integrity (e.g., flame testing) may be performed 
with any silica optical fiber as long as the nominal fiber dimensions (core, cladding, and coating diameter) and 
the coating materials are not different than the final cable design.
6.2.2 Field splices
Field splices are used when a permanent connection is required. Splices can be made using methods of fusion 
or mechanical splicing. A field splice consists of optical cables and all of the connection assemblies which 
are required to enable, manage, and protect the optical splices between the cables. A representative field 
splice shall be used to qualify field splices with similar designs and identical materials. Test samples shall be 
assembled by documented assembly methods and then subjected to the test program.
The sample field splice shall be mounted in a manner that represents its most severe or actual plant application.
6.2.3 Connectors and connection assemblies
Connectors that are used to join optical fibers in a connect/disconnect fashion are composed of manufactured 
assembly parts that when joined to optical cables, enable connectivity, management, and protection of the 
connected optical cables. It is not possible to test an optical connector for optical performance without 
attaching it to optical fibers or fiber optic cable. A connection assembly may be used to qualify a family of 
connection assemblies with the similar design and identical materials. Test samples shall be assembled by 
documented assembly methods and then subjected to the test program. If a generic family is being qualified, 
the family shall be described along with the necessary analytical justifications.
The sample connection shall be mounted in a manner that represents its most severe or actual plant application.
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IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
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6.3 Description of fiber optic cables and connection assemblies
The description or specification as a minimum shall include, but not be limited to:
6.3.1 Fiber optic cables
6.3.1.1 Cable identification
— Manufacturer name and address of facility
— Manufacturer’s trade name and/or part number
— Manufacturing date and traceability information
6.3.1.2 Cable characteristics
— Minimum bandwidth at each operating wavelength
— Maximum attenuation at each operating wavelength
— Minimum installation bend radius and in-service bend radius
— Maximum installation tensile load and in-service tensile load
6.3.1.3 Fibers
— Fiber type (multimode or single-mode)
— Fiber size (core/cladding)
— Fiber material (core/cladding)
— Mode field diameter (for single-mode fibers)
— Index of refraction
— Numerical aperture
— Fiber manufacturer
— Fiber manufacturer’s part number
— Fiber date of manufacture and traceability information
— Proof strength test level
6.3.1.4 Coating(s)
— Type (e.g., thermoset, thermoplastic, polyethylene, silicone, etc.)
— Material identification
— Number of layers
— Material thickness
— Manufacturer’s compound identification number
— Outside dimension
— Color
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IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
19
Copyright © 2023 IEEE. All rights reserved.
6.3.1.5 Buffer
— Type (e.g., loose tube, tight buffer, ribbon, etc.)
— Material identification
— Material thickness
— Manufacturer’s compound identification number
— Outside dimension
— Color
6.3.1.6 Fillers and binders
— Material type identification, including manufacturer compound identification number and type.
6.3.1.7 Assembly
— Number and arrangement of subcomponents (e.g., loose tubes, tight buffers, ribbons, duct tubes, etc.)
— Strength member material type
— Anti-buckling rods
— Fillers
— Powders, gels, tapes, yarns, or binders
— Marker tapes
— Metallic locating wires
— Rip cords
6.3.1.8 Protective layers
— Material type identification
— Jacket configuration (inner, outer, or both)
— Manufacturer’s compound identification number
— Material thickness of each layer
— Armor material type and form
6.3.2 Field splices
6.3.2.1 Splice type
— Type of splice (e.g., fusion, mechanical)
— Fiber type (e.g., multimode/single-mode, core size, or mode field diameter)
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IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power GeneratingStations
20
Copyright © 2023 IEEE. All rights reserved.
6.3.2.2 Splice identification
— Manufacturer name and address of facility
— Manufacturer’s trade name and/or part number
— Manufacturing date and traceability information
6.3.2.3 Splice characteristics
— Specified insertion loss in decibels (dB)
— Splice dimensions
6.3.2.4 Splice construction
— Splicing procedures
— Splicing equipment manufacturer and model number
— Splicing equipment settings
— Acceptance criteria
— Splicing materials
6.3.2.5 Cable identification
The information defined in 6.2.1.1, 6.2.1.2, and 6.2.1.3, (or manufacturer designation and description traceable 
to such information) for each cable type used in the qualification testing of field splices shall be documented 
in the test program.
6.3.3 Connectors
6.3.3.1 Connector identification
— Manufacturer name and address of facility
— Manufacturer’s trade name and/or part number
— Interface type (e.g., FC, ST, SC, LC)
— Fiber type (e.g., multimode/single-mode, core size or mode field diameter)
— Manufacture date and traceability information
6.3.3.2 Connector characteristics
— The maximum insertion loss for each fiber type
— The minimum return loss as applicable
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IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
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6.3.3.3 Connector ferrule
— Ferrule material (e.g., stainless steel, ceramic, or polymeric)
— Ferrule dimensions (e.g., hole diameter and overall diameter)
— Contact configuration (e.g., flat, angled, or with a radius)
6.3.3.4 Connector method of fiber capture
— Method of fiber capture (e.g., adhesive, mechanical)
— Adhesive manufacturer compound trade name, catalog, or identification number
6.3.3.5 Connector index matching gel (if applicable)
— Material identification and manufacturer’s compound identification number
6.3.3.6 Connector components
— Materials identification (e.g., stainless steel alloy, type of polymer, etc.)
— Compound identification number where a polymeric connector body is utilized
6.3.3.7 Connector boot
— Material identification including manufacturer compound identification number and type
— Attachment method (e.g., adhesive, press fit, band clamp, threaded)
— Boot dimensions (e.g., inner diameter, length)
6.3.3.8 Connector assembly
— Specific procedures
— Materials used during assembly
— Inspections/tests
— Equipment used during assembly, test, and inspection
6.3.3.9 Environmental seal
The description shall include the following, where applicable:
— Type, e.g., O-rings, potting compound
— Material identification
— Method of assembly
— Where required by the service conditions, maximum leak rate
— Identification: Manufacturer, trade name, and identification number
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IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
22
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6.3.3.10 Mounting details
The description shall include the following, where applicable:
— Detail mounting configuration, mechanical support, bend radius, maximum unsupported cable length 
and strain relief
— Detailed frequencies of connect-disconnect cycles
— Gaskets, seals, lubricants, conduit, mounting hardware, and torque requirements
— Mating connector half, if different or supplied by other manufacturer or supplier
6.3.3.11 Cable identification
Information defined in 6.2.1.1, 6.2.1.2, and 6.2.1.3, or the manufacturer’s designation and description, is 
traceable to such information for each cable used in qualification testing of connectors.
6.4 Age conditioning
Normal operating conditions over time may influence the ability of fiber optic cables and/or connection 
assemblies to withstand the extreme environments imposed during the DBE, extreme natural events, and 
severe accident environmental conditions as applicable. Therefore, unless otherwise justified, the type testing 
for the accident conditions shall involve both aged and unaged samples.
Age conditioning is a process that replicates fiber optic cable and/or connection assemblies the level of 
degradation due to significant aging mechanisms at the end of design life, excluding the DBE. This process 
generally involves applying simulated in-service stresses, typically thermal, radiation, wear, submergence, 
moisture, and (for connection assemblies only) vibration, as appropriate, at magnitudes or rates that are more 
severe than expected in-service levels, but less than levels that cause aging mechanisms not present in normal 
service.
Where substantial service-related synergistic effects exist and where methods to reproduce them in accelerated 
testing are known, such methods shall be used with due consideration to cost, time, and complexity. For 
example, thermal and radiation aging synergistic effects may be addressed by simultaneous exposure to 
radiation and thermal environments or an appropriate choice of sequential exposure order, level, or duration.
Dose rate and diffusion-limited oxidation effects are often minimized by reducing the acceleration level and 
extending the exposure duration. At a minimum, if no evidence of a synergistic effect exists, a clear statement 
shall be included with the qualification report.
The basis for establishing thermal age conditioning of samples to simulate their qualified life may be the 
Arrhenius method, or another method of proven validity and applicability for the materials in question. The 
Arrhenius method and associated activation energy values shall conform to the guidance in IEEE Std 1205™-
2014, IEEE Std 98™-2002, and IEEE Std 101™-1987.
6.5 Test procedures
6.5.1 Aging properties
The assessment of fiber optic cable and/or connection assembly aging effects in connection with a type test 
program is required to determine if aging has a significant effect on performance. Where significant aging 
mechanisms are identified, suitable age conditioning shall be included in the type test. An aging mechanism 
is significant if subsequent to manufacture, while in storage, and/or in the normal and abnormal service 
environment, it results in degradation of the fiber optic cable and/or connection assemblies that progressively 
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IEEE Std 1682-2023
IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
23
Copyright © 2023 IEEE. All rights reserved.
and appreciably renders the fiber optic cable and/or connection assemblies vulnerable to failure to perform 
its safety function(s). Examples of significant aging mechanisms include radiation, thermal effects, moisture, 
and mechanical wear. Additional information on potentially significant aging mechanisms can be found in 
IEEE Std 1205-2014.
All critical elements of the fiber optic cable and/or connection assembly shall be included in all samples. 
Elements of the fiber optic cable and/or connection assembly may also be included as additional specimens in 
the test program, either as elements or material samples (e.g., slab or dumbbell) to allow further qualification 
insights to be gained. These insights may include defining the required replacement of an element during the 
qualified life or allowing qualification of alternate connection assemblies by analysis.
Typically,the elements comprising the fiber optic cable and/or connection assemblies can be affected 
differently by accelerated aging. An assessment of the accelerated aging–related sensitivity of all critical 
elements shall be completed to establish an overall aging program that does not either significantly overage or 
underage some of these critical elements. As an example, separate specimens may be required to be aged for 
the fiber and cladding in one case, and for the jacket in the other. These samples and tests cannot be used in lieu 
of the test specimens required by 6.2. A documented rationale of the approach used for accelerated aging of the 
composite assembly is required as part of the overall qualification documentation package, described in 9.2.
6.5.1.1 Thermal aging properties
Aging of physical parameters is commonly described with a model derived from accelerated aging data under 
a specific range of environmental parameters. To this end, it is common to use an Arrhenius method to describe 
a thermal dependence by applying an activation energy value.
Aging data shall be used to establish the activation energy of the critical materials of the fiber optic cable and/
or connection assembly (e.g., fiber, cladding, coating, and/or jacket) and other elements. The fiber optic cable 
and/or connection assemblies shall be thermally aged in accordance with the most limiting element. If the 
Arrhenius method is used to establish an activation energy, a minimum of three data points at least 10 °C apart 
shall be used. The precision of the data from which the qualified life has been projected shall be given.
Optical fibers may be coated with a single or composite nonconductive, thin, polymerized layer(s) that function 
to protect the fiber from mechanical damage and moisture ingress. The protective coating(s) acts to cushion 
the glass fiber from mechanical forces which could create micro bends in the fiber, thereby minimizing optical 
signal loss. The coatings may also act as a moisture barrier, thereby preventing micro-crack propagation. Since 
the fiber coating(s) are critical to the safety function of the fiber, the Arrhenius method may be used to establish 
a qualified life for the coating(s).
6.5.1.2 Radiation conditioning
Radiation conditioning may consider two phenomena: traditional permanent aging effects and transient 
performance effects.
Radiation exposure can change many properties of fiber optic cables and is dependent upon radiation type, 
total radiation dose, radiation dose rate, and type of optical fiber. One of the most prevalent effects of radiation 
exposure is an increase of signal attenuation (signal loss). This is the result of fiber darkening due to radiation 
exposure. It is observable with most types of radiation exposure and in some types of optical fiber at relatively 
low threshold values. The extent of signal attenuation can be affected by test conditions including operating 
wavelength, test sequence, time between test phases, test temperature, and dose rate.
Most optical fibers exhibit an inherent characteristic called “recovery” after radiation aging. Recovery is 
defined as the amount that signal attenuation decreases after radiation aging. The extent of recovery can be 
affected by temperature and time after radiation aging. Generally, an increase in temperature during or after 
radiation aging can decrease the amount of signal attenuation. It is therefore recommended thermal aging be 
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IEEE Standard for Qualifying Fiber Optic Cables, Connections, and Optical Fiber 
Splices for Use in Safety Systems in Nuclear Power Generating Stations
24
Copyright © 2023 IEEE. All rights reserved.
performed prior to radiation aging and the temperature of the radiation aging facility be at or below the end use 
application, unless otherwise justified. Performing thermal aging after radiation aging may place the optical 
fiber in a non-conservative condition.
The extent of recovery also generally increases with time. The maximum extent of time-based recovery 
generally occurs within minutes or hours. It is therefore recommended that this characteristic of optical fibers 
be considered when measuring post–radiation aging signal attenuation. One method of accounting for the 
potential recovery of loss that could occur between radiation aging and DBE simulation is to add back the 
maximum amount of loss associated with recovery that could occur after radiation aging.
Some optical fibers are more sensitive to dose rate than others and exhibit greater levels of attenuation at 
higher dose rates. It is recognized that accelerated radiation aging can be required for environmental 
qualification of fiber optic cables where dose rates may be significantly higher than actual end use applications. 
It is recommended that radiation aging dose rates be as close as practicable or higher than actual end use 
applications within the restraints of the qualification test program.
Higher optical powers can have an effect called photo-bleaching which masks radiation induced aging. If 
optical performance monitoring is conducted during aging, it should be performed at optical powers not 
exceeding those intended during operation.
6.5.1.3 Synergistic effects
During the environmental qualification process, the presence of synergistic effects shall be taken into 
consideration in order to achieve the worst state of degradation. If a connection assembly is affected by two or 
more stressors, the synergistic effect is the difference between the total affects when the stressors are applied 
simultaneously versus when the stressors are applied separately. When stressors are applied separately, 
the total effect can also depend upon the order or sequence in which the stressors are applied. The selected 
sequence and the applicable synergistic effects should be addressed and justified.
Fiber optic cables utilized in nuclear power plant end use applications may be exposed to numerous 
environmental stressors including thermal, radiation, seismic, pressure, moisture, and design basis events 
(DBE) such as high energy line break (HELB), main steam line break (MSLB), and/or loss of coolant accident 
(LOCA). Thermal and radiation stressors are of particular importance due to the inherent sensitivity of some 
optical fibers.
6.5.2 Thermal and radiation exposure for normal service
Thermal and radiation age-conditioning shall be achieved by accelerated thermal and radiation exposure. 
Failure modes resulting from the degradation shall be established. Acceptance criteria shall be established 
that can allow the time-to-failure to be estimated from the time dependence of one or more parameters under 
the accelerating aging conditions. Service conditions shall be considered in selecting the value of a parameter 
that causes degradation. Failure modes, parameters causing failure, and failure criteria shall be documented. 
Rationale for age-conditioning shall be documented in the qualification report.
The following test sequence of thermal and radiation aging shall be used to demonstrate the fiber optic cable 
and/or connections are operational after aging. The sequence of thermal aging prior to radiation exposure is 
essential, so if another sequence is more conservative (including addressing fiber recovery from radiation), 
that following sequence shall be used:
a) Form suitable lengths of samples selected in accordance with 6.2 into test specimens so the effective 
length of each specimen under test cannot be less than 100 m. The minimum length of a sample shall 
be such that (1) any degradation due to the age conditioning will be representative of changes in the 
bulk properties of the material, and (2) it will facilitate testing after the age conditioning. A 3 m section 
of the exposed 100 m samples should be