1、ANSI/IEEEC37.82-1987(R2009)An American National StandardIEEE Standard for the Qualification of Switchgear Assemblies for Class 1E Applications in Nuclear Power Generating StationsSponsorSwitchgear Committeeof theIEEE Power Engineering SocietyApproved December 8, 1983Reaffirmed December 9, 2009IEEE-S
2、A Standards BoardApproved February 5, 1987Reaffirmed July 26, 1993American National Standards Institute Copyright 1987 byThe Institute of Electrical and Electronics Engineers, Inc345 East 47th Street, New York, NY 10017, USANo part of this publication may be reproduced in any form, in an electronic
3、retrieval system or otherwise, without theprior written permission of the publisher.IEEE Standards documents are developed within the IEEE Societies and the Standards Coordinating Committees of theIEEE Standards Association (IEEE-SA) Standards Board. The IEEE develops its standards through a consens
4、us develop-ment process, approved by the American National Standards Institute, which brings together volunteers representing variedviewpoints and interests to achieve the final product. Volunteers are not necessarily members of the Institute and serve with-out compensation. While the IEEE administe
5、rs the process and establishes rules to promote fairness in the consensus devel-opment process, the IEEE does not independently evaluate, test, or verify the accuracy of any of the information containedin its standards.Use of an IEEE Standard is wholly voluntary. The IEEE disclaims liability for any
6、 personal injury, property or other dam-age, of any nature whatsoever, whether special, indirect, consequential, or compensatory, directly or indirectly resultingfrom the publication, use of, or reliance upon this, or any other IEEE Standard document.The IEEE does not warrant or represent the accura
7、cy or content of the material contained herein, and expressly disclaimsany express or implied warranty, including any implied warranty of merchantability or fitness for a specific purpose, or thatthe use of the material contained herein is free from patent infringement. IEEE Standards documents are
8、supplied “AS IS.”The existence of an IEEE Standard does not imply that there are no other ways to produce, test, measure, purchase, market,or provide other goods and services related to the scope of the IEEE Standard. Furthermore, the viewpoint expressed at thetime a standard is approved and issued
9、is subject to change brought about through developments in the state of the art andcomments received from users of the standard. Every IEEE Standard is subjected to review at least every five years for revi-sion or reaffirmation. When a document is more than five years old and has not been reaffirme
10、d, it is reasonable to concludethat its contents, although still of some value, do not wholly reflect the present state of the art. Users are cautioned to checkto determine that they have the latest edition of any IEEE Standard.In publishing and making this document available, the IEEE is not sugges
11、ting or rendering professional or other servicesfor, or on behalf of, any person or entity. Nor is the IEEE undertaking to perform any duty owed by any other person orentity to another. Any person utilizing this, and any other IEEE Standards document, should rely upon the advice of a com-petent prof
12、essional in determining the exercise of reasonable care in any given circumstances.Interpretations: Occasionally questions may arise regarding the meaning of portions of standards as they relate to specificapplications. When the need for interpretations is brought to the attention of IEEE, the Insti
13、tute will initiate action to prepareappropriate responses. Since IEEE Standards represent a consensus of concerned interests, it is important to ensure that anyinterpretation has also received the concurrence of a balance of interests. For this reason, IEEE and the members of itssocieties and Standa
14、rds Coordinating Committees are not able to provide an instant response to interpretation requestsexcept in those cases where the matter has previously received formal consideration. Comments for revision of IEEE Standards are welcome from any interested party, regardless of membership affiliation w
15、ithIEEE. Suggestions for changes in documents should be in the form of a proposed change of text, together with appropriatesupporting comments. Comments on standards and requests for interpretations should be addressed to:Secretary, IEEE-SA Standards Board445 Hoes LanePiscataway, NJ 08854USAAuthoriz
16、ation to photocopy portions of any individual standard for internal or personal use is granted by the Institute ofElectrical and Electronics Engineers, Inc., provided that the appropriate fee is paid to Copyright Clearance Center. Toarrange for payment of licensing fee, please contact Copyright Clea
17、rance Center, Customer Service, 222 Rosewood Drive,Danvers, MA 01923 USA; (978) 750-8400. Permission to photocopy portions of any individual standard for educationalclassroom use can also be obtained through the Copyright Clearance Center.Note: Attention is called to the possibility that implementat
18、ion of this standard may require use of subject mat-ter covered by patent rights. By publication of this standard, no position is taken with respect to the existence orvalidity of any patent rights in connection therewith. The IEEE shall not be responsible for identifying patentsfor which a license
19、may be required by an IEEE standard or for conducting inquiries into the legal validity orscope of those patents that are brought to its attention.iiiForeword(This Foreword is not a part of ANSI/IEEE C37.82-1987, IEEE Standard for the Qualification of Switchgear Assemblies for Class1E Applications i
20、n Nuclear Power Generating Stations.)ANSI/IEEE Std 323-1984, IEEE Standard for Qualifying Class 1E Equipment for Nuclear Power Generating Stations,was developed to provide qualification requirements for Class 1E (safety-related) electrical equipments that wouldconfirm the adequacy of such equipments
21、 to perform their safety functions on a continuing basis throughout theirinstalled life. This document is based on ANSI/IEEE Std 323-1983 and is intended to present specific qualificationprocedures for switchgear assemblies in Class 1E application.In approaching the task of developing a standard for
22、 these procedures, the authors noted that1) Standards for switchgear assemblies have been developed over a long period of time through the efforts ofIEEE, AEIC, EEI, NEMA, and other interested parties under the auspices of the American NationalStandards Institute (ANSI).2) The switchgear assembly pr
23、oducts that have been produced in accordance with these standards and that havebeen properly manufactured, applied, handled, installed, operated, and maintained, have had long andsuccessful performance records.3) Because switchgear assemblies are protective equipments, the standards are conservative
24、 and provide amplemargin with respect to normal application. Design and application also tend to be conservative.4) The application of switchgear assemblies is always outside the containment in a nuclear power generatingstation. Normal service conditions are not severe. The only unusual requirements
25、 sometimes presented area) The need to meet safety-related performance demands during a design basis event (DBE) at any time, upto and including the end of a stipulated period known as the qualified life.b) Qualification to the requirements of the DBE, which is usually a specified seismic event but
26、may includesevere environmental conditions for stipulated periods of time subsequent to the seismic and other DBE.5) Switchgear assemblies are not cataloged “off-the-shelf” items as are motors, valves, pumps, etc. They arebuilt from standardized components and subassemblies but in varied arrangement
27、s to satisfy the needs ofdifferent applications. The complements of devices such as relays, etc, are rarely the same from assembly toassembly and are subject to modification during production and even after installation.In order to precisely define the task, it is important to understand what is mea
28、nt by qualification. As described inANSI/IEEE Std 323-1983, qualification is only one part of an overall quality assurance program that includes design,qualification, production quality control, installation, maintenance, and periodic testing. The overall program isrequired to assure that the equipm
29、ent will meet or exceed its performance requirements throughout its installed life.Qualification is that part that establishes the capability of the equipment to meet such requirements. Put another way,the qualification procedure must establish that the equipment can; the overall program is required
30、 to assure that it will.Qualification programs should identify design and material characteristics that, after a period of time and during aDBE, may precipitate common failure modes due to aging of redundant equipment. The concept of aging must beincluded in the qualification procedure in order to i
31、nvestigate the possibility that aging degradation might be the sourceof common failure modes in redundant Class 1E equipments. In order to provide maximum assurance that theequipment can meet its safety-related performance requirements on a continuing basis throughout its installed life andfor the s
32、tipulated DBE, it may be necessary to limit the installed life or establish a maintenance program forreplacement of some components whose qualified life is shorter than the desired qualified life for the total equipment.Based on the foregoing considerations, the authors of this document have develop
33、ed a standard that is in accordancewith the combined qualification procedure, as described in 5.4 of ANSI/IEEE Std 323-1983. The details of thisprocedure are covered in Section 7 of this document. Basically, it consists of using the standard design tests asprescribed by industry standards to establi
34、sh the capability of the equipment in an “as new” condition, and tosupplement this with tests and other data on critical components and materials to evaluate long-term performance.Analysis is used to determine the performance requirements, identify the critical components and materials, and relateiv
35、the aging data to the performance requirements in order to project a qualified life for the total assembly. Note that thisapproach to qualification provides the necessary flexibility to respond to the variations and modifications that arecharacteristic of switchgear assemblies.Tests on complete asse
36、mblies have been used in this qualification procedure when it could be reasoned that theinterrelationship of components in the complete assembly was important for realistic test results. Examples are thedielectric, continuous current, and short-circuit current tests required by industry standards, a
37、nd the seismic testsrequired by ANSI/IEEE Std 344-1975, IEEE Recommended Practices for Seismic Qualification of Class 1EEquipment for Nuclear Power Generating Stations.However, the authors reasoned that accelerated aging tests (particularly thermal aging) in a complete assembly wouldnot provide vali
38、d results. Many materials and components respond differently, relatively speaking, to accelerated agingthan they do to natural aging. This changes the interrelationships and may produce unrealistic test results whenaccelerated aging is attempted on combinations of materials. Therefore, this standard
39、 requires aging data only forcomponents and materials, rather than for complete assemblies.It should be noted that this approach makes it desirable to define margin as the difference between demonstratedcapability and required capability. The capability of switchgear assemblies is demonstrated by th
40、e design testsprescribed by relevant industry standards that show that the assemblies meet the ratings required by those standards.Because the equipment is rarely, if ever, applied up to its full rating, it is usually possible to show ample margin evenwhen the equipment has aged. The usual service c
41、onditions defined in 4.1 of this standard are consistent withapplication practices for Class 1E assemblies in nuclear power generating stations and, hence, ensure margin for suchapplications. They are not derating factors.Note that the end result of the qualification procedure is the projection of a
42、 qualified life for the switchgear assembly.There must be adequate documentation to support the projection.The realization of the projected qualified life requires a joint effort by the manufacturer and the user. The manufactureris responsible for the design and production of the equipment. In order
43、 to support the qualification of the equipment,he must provide and maintain documentation showing that it is capable of meeting specified performancerequirements in specified service conditions throughout its qualified life. The documentation must also show that theequipment is capable of performing
44、 its safety function during and, if required, for a specified time after exposure to aDBE, which might occur at any time during the life of the equipment. In order to satisfy this latter requirement, themanufacturer must provide documentation relative to the long-term performance of components and m
45、aterials that arecritical with respect to the capability of performing the safety function. The manufacturer must provide guidance onthe proper application, handling, storage, installation, and maintenance of the equipment. The maintenance guidancemust include identification of components and materi
46、als whose long-term characteristics are not adequate, so that areplacement program can be developed.The user is responsible for identification of the Class 1E equipment and components specifically requested by him. Hemust specify service conditions and performance requirements that are safety-relate
47、d. He is responsible for properapplication, handling, storage, installation, and maintenance in accordance with the guidance provided by themanufacturer. Proper application includes the maintaining of a generally favorable service environment thatcontributes greatly to successful long-term performan
48、ce. A favorable service environment is defined by the usualservice conditions listed in 4.1 of this standard.vThe personnel of the IEEE Working Group of the Switchgear Assemblies Subcommittee, IEEE SwitchgearCommittee, who developed this standard were:M. V. Boyle, Chair C. E. Kunkel, Vice Chair A. P
49、 ColaiacoJ. L. CrenshawR. P. EhasD. K. KellyP. L. KolarikW. LaudanG. O. PerkinsS. H. TelanderThe personnel of the IEEE Switchgear Assemblies Subcommittee who reviewed and approved this standard were:S. C. Atkinson, Chair A. K. AlsakerC. G. BurlandR. CarsonA. P. ColaiacoJ. J. DravisR. P. EhasM. J. JoannouA. J. KalvaitisW. E. LaubachG. R. NourseM. F. OlenderG. O. PerkinsJ. RuleJ. C. ScottJ. F. SellersS. D. SmithE. M. SpencerS. H. TelanderThe Standards Committee on Power Switchgear, C37, which reviewed and approved this standard, had the followingpersonnel at the time of approval:W. E. Laub
