ML18017B210

Submits Info Re Use of Masonry Walls in Category I Structures at Facility in Response to NRC 800421 Request.No Category I Masonry Walls Have Been Used.No safety-related Equipment Is Permitted to Be Supported from Walls

ML18017B210
Person / Time
Site:	Perry, Harris
Issue date:	08/15/1980
From:	Mcduffie M CAROLINA POWER & LIGHT CO.
To:	Varga S Office of Nuclear Reactor Regulation
References
NUDOCS 8008260402
Download: ML18017B210 (4)

Text

REGULATOR INFORMATION DISTRIBUTION STEM (RIDS)

ACCESS/ON NBR:8008260402 DOC;DATE: 80/08/15 NOTARIZED; NO DOCKET FACIL:50"400 Shearon Harris Nu'clear Power Planti Planti Unjt li Carol Unit 2P Carol ina ina 06000400 50 401 Shearon Harris Nuclear Power 05000401 50-.402 Shearon Harrjs Nuclear Power Plant< Unit 3i Carol jna 05000402 50 403 She'aron Harris Nuclear Power Planti Unit 4i Carol ina 05000403 AUTH, NAME AUTHOR AFFILIATION MCDUFFIKiM~ A", Cat ol ina Power 8 Light Co ~

RECIP ~ NAME, RECIPIENT AFFILIATION VARGAES,AD Operating Reactors Branch 1 SUBJECT; Submits info re use, of masonry walls in Category structures at fa'cility in response to NRC, 800421 requ est,No Category I masonry walls have been used,No safety rel ated equipment is permitted to be support from walls, DISTRIBUTION CODE: BOOIS COPIES RECEIYED:LTR + ENCl,' SIZE TITLE: PSAR/FSAR AMDTS and Related Correspondence NOTES:

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME'OUNGBLOODpB LTTR ENCL ACTION! A/D LICENSNG 1 RUSHBROOKPM ~ 1 WILSON p JERRY 04 INTERNALi ACCID KVALi BR26 AUX SYS BR 07 CHEM ENG BR 08 CONT SYS BR 09 CORE'ERF BR 10 DIRg SFTY TECH11 EFF TR SYS BR12 EMERG PREP 22 EQUIP QUAL~ BR13 GKOSCIKNCES 14 HYD/GEO BR 15 IaC SYS BR ISE 06 MATL ENG BR 17 MECH ENG BR 18 MPA NRC PDR 02 OELD POWER SYS BR 19 PROC/TST RFV 20 QA BR 21 SS BR22 REAC SYS BR 23 FI K 01 SIT ANAL BR 24 STRUC KNG BR25 EXTERNAL; ACRS 27 16 1 LPDR 03 NSIC 05 1

, TOTAL NUMBER OF COPIES REQUIRED; LTTR 50 ENCL

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II 0

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CSQE, Carolina Power & Light Company August 15, 1980 Steven A. Varga, Acting Assistant 3)irector for Light Water Reactors Division of Project Management United States Nuclear Regulatory Commission Washington, DC 20555 SHEARON HARRIS NUCLEAR POWER PLANT UNIT NOS. 1, 2, 3, & 4 DOCKET NOS. 50-400, 50-401, 50-402, 50-403 CATEGORY I MASONRY WALLS

Dear Mr. Varga:

As requested in youx letter of April 21, 1980, Carolina Power &

Light Company (CP&L) has reviewed the use of masonry walls in Category I structures at the Shearon Harris Nuclear Power Plant (SHNPP) . As a result of that review, CP&L provides the following information:

1. Masonry walls are used in Seismic Category I structures at the SHNPP; however, no Category I masonry walls have been used and no I

safety-related or Seismic Category equipment or components are permitted to be supported from these walls. The masonry walls in these structures are used for st:airway enclosures, elevator enclosures, shielding and knockout panels.

2. The design of the walls is based on dead load conditions.

3. CP&L is evaluating the'se walls against the criteria for damage of safety-related components by nonsafety items (Regulatory Guide 1.29).

CP&L believes that the above information should satisfy your concerns related to masonry walls at the SHNPP. CP&L'ill inform you with respect to Regulatory Guide 1.29 reveals any exceptions to the'stablished if the'valuation criteria. If you have any questions on this subject, please contact our staff.

+~h~ Yours very M. A. McDuffie truly, Senior Vice President pool 5

l/o Engineering & Construction MAM/dk 411 Fayetteville Street o P. 0. Box 1551 ~ Raleigh, N. C. 27602

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