ML13304A486

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Forwards Evaluation of Unisolable Piping from RCS W/Potential for Leakage Induced Thermal Stresses in Response to NRC Bulletin 88-008 SONGS 2 & 3, in Response to Request
ML13304A486
Person / Time
Site: San Onofre  Southern California Edison icon.png
Issue date: 06/04/1990
From: Nandy F
Southern California Edison Co
To:
NRC/IRM
Shared Package
ML13304A487 List:
References
TAC-69683, TAC-69684 IEB-88-008, IEB-88-8, NUDOCS 9006070299
Download: ML13304A486 (2)


Text

ACCELERATED DISTRIBUTION DEMONSTRATION SYSTEM REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:9006070299 DOC.DATE: 90/06/04 NOTARIZED: NO DOCKET 4 FACIL:50-361 San Onofre Nuclear Station, Unit 2, Southern Californ 05000361 50-362 San Onofre Nuclear Station, Unit 3, Southern Californ 05000362 AUTH.NAME AUTHOR AFFILIATION NANDY,F.R. Southern California Edison Co.

RECIP.NAME RECIPIENT AFFILIATION R Document Control Branch (Document Control Desk)

SUBJECT:

Forwards "Evaluation of Unisolable Piping from RCS w/Potential for Leakage Induced Thermal Stresses in...." D DISTRIBUTION CODE: IE16D COPIES RECEIVED:LTR L ENCL SIZE:

S TITLE: Bulletin Response 88 Thermal Stress in Piping to RCS.

NOTES:

RECIPIENT COPIES RECIPIENT COPIES A ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD5 LA 1 0 PD5 PD 1 1 D KOKAJKO,L. 1 1 D

INTERNAL: AEOD/DOA 1 1 AEOD/DSP/TPAB 1 1 NRR HARTZMAN,M 1 1 NRR HUM,M 1 1 S NRR MOZAFARI,B 1 1 NRR/DET/EMEB9H3 1 1 NRR/DOEA/OEAB11 1 1 NRR/DOEA/OGCB11 1 1 NRR/DREP/PEPB9D 1 1 N 8E2 1 1 NRR/PMAS/ILRB12 1 1 EG FILE 02 1 1 RES/DSIR/EIB 1 1 01 1 1 EXTERNAL: LPDR 1 1 NRC PDR 1 1 NSIC 1 1 R

D S

A D

D NOTE TO ALL "RIDS" RECIPIENTS:

S PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT. 20079) TO ELIMINATE YOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED: LTTR 20 ENCL 19

Southern California Edison Company 23 PARKER STREET IRVINE. CALIFORNIA 92718 F. R. NANDY J 4 TELEPHONE MANAGER OF NUCLEAR LICENSING June 4, 199 (714) 587-5400 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555 Gentlemen:

Subject:

Docket Nos. 50-361 and 50-362 NRC Bulletin 88-08 (TAC Nos. 69683/4)

San Onofre Nuclear Generating Station Units 2 and 3

References:

February 9, 1990 letter from F. R. Nandy (SCE) to Document Control Desk (NRC);

Subject:

Same as above.

In response to a recent request from Mr. L. E. Kokajko, NRC Project Manager for San Onofre Units 2 and 3, this letter provides as an enclosure, a copy of the report "Evaluation of Unisolable Piping from Reactor Coolant System with Potential for Leakage Induced Thermal Stresses in Response to NRC Bulletin 88-08 SONGS 2 & 3." This report was prepared by Southern California Edison's Nuclear Engineering Design Organization (NEDO) in response to NRC Bulletin 88-08 "Thermal Stresses in Piping Connected to Reactor Coolant Systems."

The NRC requested a copy of this report because it was referenced in the pressurizer auxiliary spray line safety evaluation sent to the NRC as an enclosure to the above referenced letter. The information and calculations contained within the report were independently reviewed and approved when the report was prepared as indicated by the signatures on the cover sheet.

If have any questions about the attached report, please let me know.

Very truly yours, Enclosure cc: J. B. Martin, Regional Administrator, NRC Region V C. Caldwell, NRC Senior Resident Inspector, San Onofre Units 1, 2 and 3 DR 03' PE'c:i I.C