ML18018B785

Forwards Addl Info Re Interaction of non-Category I Piping W/Category I Piping,In Response to Mechanical Engineering Branch SER Confirmatory Item 5.Seismic/nonseismic Interface Anchor Design Effort 90% Complete

ML18018B785
Person / Time
Site:	Harris
Issue date:	09/26/1984
From:	Zimmerman S CAROLINA POWER & LIGHT CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
References
NLS-84-411, NUDOCS 8410030195
Download: ML18018B785 (5)

Text

REGULATOR INFORMATION DISTRIBUTION S STEM (RIDS)

ACCESSION NBR:8410030195 OOC ~ DATE: 84/09/26 NOTARIZED: NO DOCKET FACIL:50-400 Shearon Harris"l4uclear Power Planti Unit 1~ Carolina- 05000400 AUTH;NAME AUTHOR AFFILIATION ZIMMERMANis,R, Carolina Power L Light-. Co.

RECIPeNAME~ RECIPIENT AFFILIATION DENTONiH,R. Office~ of Nuclear Reactor Regulationr Director

SUBJECT:

Forwards addi info re interaction of non"Category. I piping w/Category I pipingiin* response to, Mechanical Engineering Branch SER Confirmatory Item 5.Seismic/nonseismic interface anchor- design effort 90K complete, OISTRIBUTIoN CODE TITLE: Licensing e B0010 COPIES 'RECEIVED'TR

'Submittal: PSAR/FSAR Amdts 8,

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NOTES:

RECIPIENT COPIES'TTR RECIPIENT COPIES IO CODE/NAME ENCL ID CODE/NAME LTTR ENCL NRR/DL/ADL 1 0 NRR LB3 BC 1 0'

NRR IB3 LA 1 0 BUCKLEYgB 01 1 INTERNAL; ADM/LFMB 1 0 ELD/HOS1 1 0 IE FILE 1 1 IE/OEPER/EPB 36 3 3' IE/OEPER/IRB 35 1 1 IE/OQA SIP/QAB21 1 NRR/DE/AEAB 0 NRR/DE/CEB 11 1 1 NRR/DE/EHEB 1 1 NRR/DE/EQB 13 2  ?"

NRR/DE/GB., 28 2 2 NRR/DE/MEB 16 1 1 NRR/OE/MTEB 17 1 1 NRR/DE/SAB 24 1 1 NRR/DE/SGEB '25 1 1 NRR/OHFS/HFEB40 NRR/OHFS/I.QB 1 1 NRR/DHFS/PSRB 1 1 NRR/OS I/AEB 26 1'.

1 1 3?'RR/OLiSSPB NRR/OSI/ASB NRR/DSI/CPS 10 1 1 NRR/DSI/CSB- 09 1 1 NRR/DSI/ICSB NRR/DS I/METB 12', 1 1 I/PSB 19 16'RR/DS 1 l.

AB 1 1 NRR/DSI/RSB 23 1 1 FILE 22'EG 04 1 1 RGN2 3"

/MI8 1 0 EXTERNAl.: ACRS 6 6 BNL(AMDTS ONLY)

OMB/DSS (AMOTS) 1 1 FEMA REP DIV 39 LPDR 03 1 1 NRC POR 02 NSIC 05 1 NTIS

,TOTAL NUMBER OF COPIES REQUIRED: LTTR 54 ENCL 46

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@ME, Carolina Rower & Light Company SEP 36 1980 SERIAL: NLS-84-411 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation United States Nuclear Regulatory Commission Washington, DC 20555 SHEARON HARRIS NUCLEAR POWER PLANT UNIT NO. 1 DOCKET NO. 50-400 PIPING SUPPORTS

Dear Mr. Denton:

Carolina Power 6 Light Company (CP&L) hereby submits additional information concerning the interaction of Non-Category I piping with Category I piping at the Shearon Harris Nuclear Power Plant. This information is submitted in response to Safety Evaluation Report Confirmatory Item 5 from the Mechanical Engineering Branch.

If you have any questions or require additional information, please contact me.

Yours very truly, S. R. immerman Manager Nuclear Licensing Section JHE/pgp (596JHE)

Attachment cct Mr. B. C. Buckley (NRC) Mr. Wells Eddleman Mr. G. F. Maxwell (NRC-SHNPP) Mr. John D. Runkle Mr. J. P. O'Reilly (NRC-RII) Dr. Richard D. Wilson Mr. Travis Payne (KUDZU) Mr. G. 0. Bright,(ASLB)

Mr. Daniel F. Read (CHANGE/ELP) Dr. J. H. Carpenter (ASLB)

Mr. David Terao (NRC-MEB) Mr. J. L. Kelley (ASLB)

Chapel Hill Public Library Wake County Public Library Boippsp>9> P 84p+>6

~pppppp PDR ADOCK PDR E

411 Fayettevilte Street o P. O. Box 1551 e Raleigh. N. C. 27602

Shearon Harris Nuclear Power Plant SER Confirmatory Item No. 5 Pi in Su orts Confirmator Item:

Evaluate the interaction of Non-Category I piping with Category I piping to the criteria established at the CP&L/NRC meeting of October 24, 1983.

~Res ense:

CP&L has completed its review of the seismic/non-seismic interface anchors utilized at SHNPP. The review was conducted to determine and demonstrate that the criteria as established at the October 24, 1983 meeting between the NRC and CP&L had been satisfied in the SHNPP design. The criteria established in the October 24, 1983 meeting was documented by CP&L letter dated December 1, 1983 (attached).

A review of 1141 piping stress isometrics identified 220 seismic/non-seismic interface anchors. 104 of these anchors were found to be acceptable as designed 60 large bore and 44 small bore. 18 anchors failed the pipe yielding moment analysis 12 large bore and 6 small bore. These 18 anchors had vertical supports only on the non-seismic side of the anchor. Lateral restraints have since been designed on the non-seismic side of these anchors

.such that criterion 2 is satisfied for the 6 small bore anchors and criterion 3 is satisfied for the 12 large bore anchors.

The remaining 98 anchors 7 large bore and 91 small bore had no supports designed on the non-seismic side of the anchors when the study was conducted. These designs are currently ongoing and are being designed to satisfy the criterion 2 (for small bore) and criterion 3 (for large bore).

The effort is currently approximately 90% complete.

CP&L considers this item closed.

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