ML18031A380

Discusses Diesel Generator Surveillance Requirements Resulting from 820708 meeting.As-built Installation of Diesel Generator Starting Sys Meets Design Bases Delineated in FSAR Section 9.5.6.1 & Conforms W/Srp Requirements

ML18031A380
Person / Time
Site:	Susquehanna
Issue date:	07/09/1982
From:	Curtis N PENNSYLVANIA POWER & LIGHT CO.
To:	Schwencer A Office of Nuclear Reactor Regulation
References
PLA-1177, NUDOCS 8207150548
Download: ML18031A380 (4)

Text

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ACCESSION NUR:8207150548 DOC ~ DATE.: 82/07/09 NOTA IZED: NO DOCKET f.ACYL:50-367 Susquehanna Steam Electric Stations Unit 1F Pennsylva 05 0367 50-308 Susquehanna Steam Electric Stations Unit 2F Pennsylva 500 AUT K NAt~E AUTKUR AFFILIATION CLRT ISF N ~ lu ~ Pennsylvania Power R Light Co ~

r E1C I f'. t4AYE. f<EC IP IEN1 AFF IL I ATION SC Hli ENCF R F A~ Licensing Branch 2 SLBJECT: Discusses diesel generator surveillance requirrrents resulting frcm 020708 meeting As built installation of

. diesel generator starting<sys meets design bases delineated in FSAR Section 9.5 6 ~ ~ 1 R conforms w/SHP reauirements ~

DISTRIOUTIOR CODE: 8001S TITLE: PSAH/FSAR AMDTS and COPIES RECEIVEDtLTR Related Correspondence j ERCL SIZFt I'4CTES:

RECIPIENT COPIES RECIPIENT COPIES I 0 CODE/NAP E LTl R ENCL IO CODE/tuAFE LTTH ENCL A/0 LICENSNG 0 LIC BH 02 BC 1 0 LIC BR ¹2 LA 1 0 PERCHA R ~ 01 1 1 ItiTERtiAL: ELD/KOS4 1 0 IE FILE 1 1 IE/OEP EPOS 3b 1 1 IE/DEP/EPLB 36 3 3 hftR/DE/CEB 1 1 NHR/OE/EGB 13 3 3 NHH/OF/GB 2U 2 2 NHR/OE/HGEB 30 2 2 tuBH/DE/tFQB 1 1 NRR/OE/MTE,B 17 1 1 tuRR/DE/GAB 21 1 1 NRR/O'E/SAB 24 1 1 t'RH/DE/SEB 25 1 1 NRR/OKFS/KFEB40 1 . 1 hHR/OHFS/LGB 32 1 1 NRA/OKFS/OLB 34 1 1 t4HH/DKFS/PTRB20 1 1 NRR/OS I/AEB 26 1 1 NRw/DSI/ASB 27 1 1 NRR/OS I/CFB 10 1, 1 NOR/Ds I/CSd 09 1 1 NRR/DS I/ET SU 12 il 1 tuHR/DS I/ICSB 16 1 1 NRR/DS I/PSB 19 1' hRH/DSI/HAB 22 1 1 NRR/OSI/HSB ?3 1 1 NHR/DST/LGB 33 1 1 04 1 1 fZGN 1 2 RM/DDAMI/bIB 1 . 0 EXTERNAL: ACRS 41 iu 10 BI~L (Arin TS OKL Y) 1 1 Dt>B/DSS (AMDTS) 1 1 FERA-REP DIV 39 1 1 LPOR 05 2 2 t'jRC PDR 02 1 1 NSIC Ob I 1 NTIS 1 1 TOTAL NUMBER OF COPIES REUUIfkED: LTTR 59 ENCL 54.

i:,, j'j:-$ pennsylvania Power & Ligh@ompany Two North Ninth Street ~ Allentown, PA 18101 ~ 215/ 770-5151 Norman W. Curtis Vice President-Engineering & Construction-Nuclear 215/ 770-5381 July 9, 1982 Hr. A. Schwencer, Chief Licensing Branch No. 2 U.S. Nuclear Regulatory Commission Washington, D.C. 20555 SUSQUEHANNA STEAM ELECTRIC STATION DIESEL GENERATOR SURVEILLANCE REQUIREt1ENTS ER 100450 FILE 841-2 Docket Nos: 50-387 PLA-1177 50-388

Dear Mr. Schwencer:

On July 8, 1982 members of the Nuclear Regulatory Commission staff 'and Susquehanna Steam Electric Station project met to discuss Technical Specifications section 4.8.1.1.2.d.12 which describes one requirement for 18 month diesel surveillance.

The as-built installation of the 'diesel generator starting system meets the design bases delineated in FSAP, section 9.5.6.1 and conforms with the Standard Review Plan requirements.

The diesel air start system has 2 compressors, 2 receivers and inter-connecting piping to assur e starting reliability. The air start systems are sized for 5 start capability with the compressors secured. Testing to prove this capability has been performed. The results prove the air star t systems have sufficient volume to start the engines 5 times.

Pennsylvania Power tt Light Company requests a revision to the Susquehanna Unit 1 Technical Specifications. We propose section 4.8.1.1.2.d.l2 read as follows:

"Verifying that with all diesel generator air start receivers pressurized to less than or equal to 240 PSIG and the compressors secured, the diesel generator starts at least 5 times from ambient conditions and accelerates to at least 600 PRM in less than or equal to 10 seconds for the initial start and less than or equal to 25 seconds for each subsequent start."

piiot 8207 150548 820709 PDR A ~ 05000387~ PDR A

July 9, 1982 PLA-1177 Page Two Only one diesel loading sequence interval, initiated from either LOCA or LOOP auto-start signals, is considered in the safety analysis.

Therefore, the 10 second testipg requirement for subsequent starts does not provide any verification of additional safety margin for Susquehanna Steam Electric Station.

Very truly yours, N.W. Curtis Vice President - Engineering 8 Construction - Nuclear HWK/POM/RRS cc: R.L. Perch NRC M. Srinivasan NRC D. Brinkman NRC