ML18025A614

Pennsylvania Power & Light'S 11/17/1977 Letter BWR Relief Valve Control System and Associated Containment Loads

ML18025A614
Person / Time
Site:	Susquehanna
Issue date:	11/17/1977
From:	Curtis N Pennsylvania Power & Light Co
To:	Parr O Office of Nuclear Reactor Regulation
References
172, 480-2, ER 100450, PLA-200
Download: ML18025A614 (2)

Text

r V 7 4 ~ei U.S. NUCI EAR REGULATORY C ISSION OOCICET NUMBER NRC FORM 195 (2 7B) 7 3 FII.E NUMBER NRG DISTRIBUTION FDR PART 50 DOCKET MATERIAL FROM: DATE OP DOCUMENT TQ:

Pennsylvania Power & Light Coi 11/17/77 Mr. Olan D~ Parr Allentown, Pa~ OATS RE CE I V6 0 Ni Wi Curtis 11/21/77 I2CETTER 0 NOTOR IZED PROP INPUT FORM NUMBER OF COPIES RECEIVED

~R CICOPY IGINAI ZIUNCLASSIFIED DESCRIPTION g~

Relief i Zg Valve Control System ENCI,OSU RE Concerns BWR and Associated Containment Loads' ~

PLANT'AME : Susquehanna Units 1 & 2 (1-P)

RJL 11/21/77 FOR ACTION/INFORMATION ENVIRONIiKiNTAL ASSIGiKD AD-VC CHIEF: BRANCH CHIEF:

PROJECT iiNAGER:-

LIC. ASST:

B. HARLESS INTERNALOISTRI BUTION T SYSTEiiIS SITE SAFETY G R ENVIRON ANALYSIS DENTON G ÃJLLER SSICK Q STAFF ENGINEERM~G TTO RON TECH ERNST C. RS BALLARD T R AFETY ROSS B R ILL 2 NOVAE ROSZTOCZY YSIS CHECfi; V LL~IER I C" I 'T TERNAL OISTRIBUTION CONTROL i UMBER LPDR:

TTC 77'; rib i 1 'v AP /

V >C REG V (J. HANCHETT) 15 CYS SENT CATEGORYI

TWO NORTH NINTH STREET, ALLENTOWN, PA. 18101 PHONE: (215) 821 5151 NORMAN W. CURTIS Vice President Engineering 8 Constructen 821.5381 NOV i7 1977 Director of Nuclear Reactor Regulation Attention: Olan D. Parr, Chief Light Water Reactors Branch No. 3 U.S. Nuclear Regu1atory Commission Washington, D.C. 20555 SUSQUKQQlNA STEAM ELECTRIC STATION DOCKS NUMBERS: 50-387 BWR RELIEF VALVE CONTROL SYSTEM AND 50-388 ASSOCIATED CONTAINMENT LOADS ER 100450 PILES 480-2, 172 PLA- 200

Dear Mr. Parr:

In response to your letter of October 28, 1977, regarding containment loads resulting from operation of safety relief valves, PP&L plans to proceed. with a Susquehanna unique analysis to determine what impact exists on the Susquehanna plant. Due to GE's commitments f'r this analysis on Mark III and other plants, PP&L will be unable to submit the resu1ts until March 1978. If design changes prove to be necessary for Susquehanna, they will be identified at that time.

N. W. Curtis Vice President Engineering & Construction WEB/sg PENNSYLVANIA POWER IL LIGHT COMPANY