ML18040A682

Responds to Ser,Suppl 5,Item 3.11.1(1)(a) Re nonsafety- Related Electrical Equipment.Failure of nonsafety-related Equipment Unlikely Due to Classification Under Qualification Program

ML18040A682
Person / Time
Site:	Susquehanna
Issue date:	06/20/1983
From:	Curtis N PENNSYLVANIA POWER & LIGHT CO.
To:	Schwencer A Office of Nuclear Reactor Regulation
References
PLA-1716, NUDOCS 8306230466
Download: ML18040A682 (4)

Text

et REGULATORY ORMATION DISTRIBUTION SYi M (RIDS)

ACCESSION NBR:8306230066 OOC,OATEN'3/06/20 NOTARIZED: NO DOCKET FACIL!50 387 Susquehanna Steam Electric Station~ Unit 1< Pennsylva 05000387 BYNAME 50 388 Susquehanna Steam Electric Stationi Unit 2~ Pennsylva 05000388 "AUTH AUTHOR AFFILIATION CURTIS',l'I ~ Pennsylvania Power 8, Light Co ~

'RKC IP ~ NAME RECIPIENT AFFILIATION SCH'WENCERgA ~ L'icensing Br anch 2

SUBJECT:

Responds to SKRrSuppl 5rItem 3,11 1(1)(2) re nonsafety

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.related electrical equipment, Failure of nonsafety related equipment unlikely due;to classification under qualification progr am, DISTRIBUTION CODE ~ 'B00 1S COPIES "REiCEIQEO! LTR <<J TITLE: Licensing 'Submittal:,PSAR/FSAR 'Amdts L ENCL 'IZE

,O Related Correspondence NOTES< icy NMSS/FCAF/PM 05000387 icy b1MSS/FCAF/PMe 05000388 REC IP IKNT COPIES RECIPIENT COPIES ID CODE/NAME LTTR 'NCL ID CODE/NAME LTTR ENCL NRR/DL/ADL 1 NRR LB2 BC NRA LB2 LA PERCH RE 01 1 t INTERNAL: ELD/HOSE 1 IE FILE IE/DEPER/EPB 36 3 IE/OEPER/IRB 35 IE/OKQA/QAB 21 1 NRR/DK/AEAB NRR/OElCEB 1 1 NRR/DE/EHEB NRA/OE/EQB 13 NRR/DE/GB 28 NRR/OE/MKB 18 1 NRR/OK/MTKB 17 NRA/PK/SAB 24 NRR/DE/S GEO 25 NRR/OE/SGEB 30 NRR/OHFS/HFEBOO NRR/DHFS/LQB 32 NRR/DHFS/PSRB NRA/PL/SSPB i NRR/DS I/AKB 26 NBA/OSI/ASB NRR/DSI/CPB 10 NRR/OS I/CSB 09 NRR/DS I/I CSB 16 NRA/OSI/METB 12 NRR/OS I/PSB 6 '22 1 NRR/OS I/RSB 23

'3 IL REG M'MI B 04 1

RGNi EXTERNALS ACRS BNL(AMDTS ONLY)

DM&/OSS .(AMDTS) FEMA~REP DIU 39 L'Pl)R NRC POR 02 NS I'C -05 NTIS NOTES+

TOTAL NUMBER OF COPIES REQUIRED'TTR 56 ENCL

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4 Pennsylvania Power 8 Light Company Two North Ninth Street ~ Allentown, PA 18101 ~ 215 i 770-5151 Norman W. Curtis Vice President-Engineering & Construction-Nuclear 215/770-7501 JW 20 7983 Director of Nuclear Reactor Regulation Attention: Mr. A. Schwencer, Chief Licensing Branch No. 2 Division of Licensing U. S. Nuclear Regulatory Commission Washington, D.C. 20555 SUSQUEHANNA STEAM ELECTRIC STATION RESPONSE TO SER SUPPLEMENT 5 ITEM 3.11.1(1)(a)

ER 100450 FILE 843 Docket No. 50-387" PLA-1716 50-388

Dear Mr. Schwencer:

SER Supplement 5, Item 3.11.1(1)(a) requests a list of all nonsafety-related electrical equipment, located in a harsh environment, the failure of which under postulated environmental conditions could prevent satisfactory accomplishment of safety functions by safety-related equipment. The SSES design assures that no nonsafety-related electrical equipment could fail so as to prevent satisfactory accomplishment of safety functions by safety-related equipment. This is because any equipment, whose failure could affect safety equipment, is classified as safety related, and is, therefore, considered under the qualification program.

This position is based upon the SSES design criteria as described in FSAR Sections 3.12 and 8.1.6, which provide both electrical isolation and physical separation of safety and nonsafety-related equipment. These design criteria have been incorporated through the existing design control no special review for environmental qualification is necessary.

processes'herefore, This letter constitutes our complete response to this item.

Very truly yours, N. W. Curtis Vice President-Engineering 6 Construction-Nuclear cc: R. L. Perch NRC 8306230466 830620 PDR ADOCK 05000387 PDR

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