ML19221A888
| ML19221A888 | |
| Person / Time | |
|---|---|
| Issue date: | 07/31/1978 |
| From: | NRC OFFICE OF STANDARDS DEVELOPMENT |
| To: | |
| References | |
| REGGD-01.063, REGGD-1.063, NUDOCS 7907100240 | |
| Download: ML19221A888 (3) | |
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July 18, 1978 REGULATORY GUIDE DISTRIBUTION LIST (DIVISION 1)
Regulatory Guide 1.63, Revision 2, " Electric Penetration Assemblies in Containment Structures for Light-Water-Ccoled Nuclear Power Plants,"
transmitted hercwith, describes a method acceptable to the NRC staff r mission's regulations regarding mechanical, for complying with the c
electrical, and test requirements for the design, qualification, con-struction, installation, and testing of electric penetration assemblies.
With reference to the prcvisicns of Section D, " Implementation," of the guide, any purchase orcers for electric pe,1ctratir:n assemblies executed prior to the effective dcte of the guide that c,.cify the provisions of either Revision 0 cr Revision 1 cf Regulatory Guide 1.63 need not be changed.
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OFFICE OF STANDARDS DEVELOPMENT REGULATORY GUIDE 1.63 ELECTRIC PENETRATION ASSEMBLIES IN CONTAINMENT STRUCTURES FOR LIGHT-WATER-COOLED NUCLEAR PO'NER PLANTS working group of Subcommittee I (General A. INTROD UCTION by a
Plant Criteria) of the Nuclear Pow er lingineerin e General Design Criterion 50 " Containment De-of the Institute of Electrical and fileci Conn sign llasis, of Appendis A.
%eneral Design tronics Engineers (IEEE) and was subsequentls ap-Critena for Nuclear Power Plants, to 10 CFR Part prosed bs the IEEE Standards lloard on SeptemlSer 4 50 Domestic 1 icensing of Production and Utiliza-1975. T h'is IEEE standard presenbes desien, qualifi-cation, construction, installation, and 'restine tmn Facilities, requires, in part, that the reactor re-containment structure, including penetrations, be de-uirements for electric penetration awemblies in siened so that the containment structure can, without Wl o&d nuch exceeding the design leakage rate, accommodate the power plants.
calculated prewure, temperature, and other ensiron-mental conditions resulting f rom any loss-of-coolant C. REGULATORY POSITION accident Appendis H. " Quality Awurance tritena for Nuclear Pow er Plants and Fuel Reprocessing Conformance with the requirements of IEEE Std
- Plants, to 10 CFR Part 50 establishes quality 317-1976 lEEE Standard for Electric Penetration awurance requirements for the design, construction.
Awemblies in Containment St ruct u re s to; Nuclear and operation of nuclear pow er plaat structures, Power Generating Siatmns.
prosides an acceptable method of complying with Gei.eral Design Criterion sy ste ms, and components. This guide describes a
9 method acceptable to the NRC staf f tor complyin/
50 of Appendis A and with Appendis H to 10 CFR with General Design Criterion 50 of Appendis A and Part 50 with respect to mechanical, electrical, and with Appendis B with respect to the mechanical.
test requirements for the design. qualification, con-electncal, and test requirements for the design, struction, installation, and testing of electric penetra-qualitication, construction. installation, and testing tion assemblies in corhinment structures for light-of electric penetration assemblies in containment w ater-cooled nuclear pow er plants, subject to the structures of light-water-cooled nucicar power plants.
follow ing.
The Adsis >rs Committee on Reactor Saf ecuards was consulted reeardine this guide and concu'rred in the
- 1. Section 4.2 4 should be supplemented by the follow ing The electne penetration awembly should reculatory positions.
be designed to withstand, without low of mechanical integnty, the nusimum short-circuit current s s. time B. DISCUSSION conditions that could occur gisen
- le random lEEE Std 317-1976.' 'IEEE Standard for Electric failures of circuit oserload protectioi. csices. T he Penetration Awemblies in Containment Structures for circuit oscrload protection system should conform to prepared the criteru of IEEE Sid 279-1971.' " Criteria for Nuclear Power Generating Stations, w as P otection Sy stems f or Nuclear Power Generating I*
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' Copie, may t e oN.o rcJ f rom the Imtitute of I.les tru al and Uc < n ow. l.n gi ne( r-1%fcJ f rgmeru ng Ce rter. 145 1. n, the penetration assembly shculd be censi' tent with crb snect. New wrk. New T ork iml7 the criteria used in cuablishing the interrupting USNRC REGULATORY GUIDES e
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capabihty of the protec:ise desice awoci ced with the lht test vohaces f or the abuse shall be based on pendration assembly conJuctors. A.cordingly, the the vita;. rating of the conductor in atcordance pros i sion s of Section 4.2.4 pertaining to the rated u nh the to!!owine table:
short-circuit cuirent for ahernating-current circuit s should be modified as fo!!ow s:
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Volwce r VI Vo!?a ec ( V)
Rated Volta;c t V1 s 'r Ru ria '
Wu and 600 300) 1000 (110 i 5( n u t rdyyn) 1000I 5000 95 foo 5pgg j 15.000 95,000 Shon )
15 5 ihe 5Do-hour auine time at nunimum aeme 15000 I U
remperanac of Section 6 3.3 is a printing error and shoulJ be chan ed to 5000 hours0.0579 days <br />1.389 hours <br />0.00827 weeks <br />0.0019 months <br /> 1 T he prosisions of Section 4.2.4 pertaining to the duranon of the mnimum short-circu ' currer.t arc
- o. t he defmition ot ' Double Aperture Scal' in repre sentaus e of cheuits protected by molded-case Section 2 is a printing enor ' and shou!J be changed cucuit breakers bu' are not :cptesentatn s of circuits asfolhiu v 'Iwo single aperture seals in series usin ' e!her air cucuit '
!.ers T he pros isions per taimne to the duration
.ht mnimum short-circuit L Ihe specific appheability or acceptability of the currerit should be nodified as f ollows:
codes stanJards, and guiJes retetented in Section 3 will be cosered separately in other regulatory guides, i, c Cla u n i non I):o atwru 'l w here appropnate.
Ctage po Act and o 033 ifor inolJed case com rol circuit breakers) 0.006 (tor other air D. IM PLEMENTATION circui( breakers)
I.hc purnose of. his, section is to proside mt.orma-t 4.
Section 6.4 4
' Dielectric-Strength Test, tion to applicar.ts repart!;ng the NRC staif N plans for shoulJ be supple ented, for qualitication testmg using this regulatory : uide. Except in those cases in onk, bs the followinz w hich the applicant p.oposes m acceptable alterna-use methoJ tor complying with specified portions of
- 13) E.ach metnum-s ohage power conductor sha'l the Commission N regulations, the method described be eis en an impulse withstand test b, app h in t
- - a herein will be used in the esaluation of suhnu.ttals for 1.'
30 ps nnoulse sohace test series consntmg of.
- nree positise and three negatis e impuhe mhages it.
construction permit applications docketed af ter l August 31. 1978.
I flashoser occurs on only one test during any group of.
three consecutive tests, three more shall be made. If If an applicant wishes to use this reculatory guide ro flashoser occurs in the second croup v tests the in deseloping subnunals f or applicanon s docketed on flashos er in the first group shall be considered as a or before August 31. 1978, the pertinent portions of !
random liash.n c an J the equipment sha:1 be,onsid.
.he apphcation will b-evaluateJ on the basis of this cred as hasing pa.scJ the test.
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