ML20052G929

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Forwards Shoreham Evaluation Rept Re Integrity of Scram Sys Piping, Providing Further Response to Generic Ltr 81-35, Safety Concerns Associated W/Pipe Breaks in BWR Scram Sys. Also Addresses Issues in NUREG-0803
ML20052G929
Person / Time
Site: Shoreham File:Long Island Lighting Company icon.png
Issue date: 05/13/1982
From: James Smith
LONG ISLAND LIGHTING CO.
To: Harold Denton
Office of Nuclear Reactor Regulation
Shared Package
ML20052G930 List:
References
RTR-NUREG-0803, RTR-NUREG-803 GL-81-35, SNRC-703, NUDOCS 8205190164
Download: ML20052G929 (2)


Text

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( LONG ISLAND LIGHTING COM PANY

} SHOREHAM NUCLEAR POWER STATION o m .; wm u. oe , .

P.O. BOX 610, NORTH COUNTRY ROAD + WADING RIVER, N.Y.11792 l

May 13, 1982 SNRC-703 Mr. Harold R. Denton, Director l

Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D. C. 20555 Scram Discharge Volume - NUREG-0803 Shoreham Nuclear Power Station - Unit 1 Docket No. 50-322

Reference:

Letter SNRC-659 dated January 11, 1982

Dear Mr. Denton:

The reference letter responded to Generic Letter 81-35, " Safety Concerns Associated with Pipe Breaks in the BWR Scram System".

(Shoreham SER Item No. 61). In the attachment to that letter, LILCO advised that they were continuing to evaluate various aspects of such an event.

This further evaluation has been completed and is hereby for-warded to you in the form of a document entitled "Shoreham Evaluation Report Regarding Integrity of Scram System Piping".

(40 copies enclosed). This report concludes the following:

a) Based on a fracture mechanics evaluation specific to Shoreham, the probability of a significant fracture in the Scram Discharge Volume (SDV) Piping is very small (9x10-7 per reactor year).

b) Shoreham's presently installed leak detection equip-ment and procedures assure an early detection and mitigation of a postulated SDV rupture.

t 8205190164 820513 i PDR A

ADOCK 05000322 PDR

' May_13, 1982

-- SNRC-703

., Page 2 This report completes our evaluation on this issue and provides the staff with sufficient information to close this issue on the Shoreham docket.

If you have any questions, please contact this office.

Very truly.yours,

, . p J. L. Smith Manager, Special Projects i Shoreham Nuclear Power Station  :

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cc: J. Higgins All parties .

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