ML18017B288

Forwards Interim Deficiency Rept Re 801017 Confirmation of Nonsafety Heating,Ventilation & Air Conditioning for Class IE Motor Control Ctrs.Due to Extensive Nature of Problem, All Corrective Action Expected to Be Completed by 810215

ML18017B288
Person / Time
Site:	Harris
Issue date:	11/24/1980
From:	Chiangi N CAROLINA POWER & LIGHT CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
10CFR-050.55E, 10CFR-50.55E, 52, NUDOCS 8012010339
Download: ML18017B288 (8)

Text

SEOUL'ATOR+>>VFORNATION DISTRIBUTION +TEN (RIBS)

ACCESS IOiV iVBR: 8012010339 DOC, ~ DATE: 80/11/24 >>VO>>TARIZKD'! NO DOC KEIT FACIL:50-400 Sbearon Harris Nuc1 ear Power Pl anti Unit 1 i Carolina 05000400 50 401 Shear on Harri s Nucl ear Power Pl anti Uni t 2i Car ol ina 05000401 50 402 Shearon Harris Nuc.leai Power Planti Unit 3i Carolina 05000402.

BYNAME.

50 403 Shearon Hartis Nuclear Power Planti U'nit 4i Carolina 05000403 AUTH AUTHOR AFF>>IL>>I'ATION CHIANGiiN.J.. Car ol>>ina, Power>> L Light Co>>,,

RECIP-,NAME RECIPIE>>VT! AFFILIATIO>>V .

0 'R E I LL>>Y i J P

~ "N Region 2'i Atlantai Office of the Director

SUBJECT:

Forwards interim deficiency rept re 801017 confirmation of nonsafety hea'tingiventilation L a',ir con'ditioning for C-lass IE. mo.tor control ctrs.Due to extensive nature o,f problemi al co,r r ective action expected to>> be comp>>lated by 810215 ~ .

1 DISTRISUTION CODE: BO>>9S COPIES RECEIVED:LiTR J>> ENCLI 3 SIZEl:

Construction Deficienc'y Report (10CFRSO ~ 55EO 0'ITLE; NOTES:

RECK P IEV'T COPIES REC'IP IENT ~ COPIES ID CODE'/>>VAME LITTR ENCL." ID- LTTR ENCL>>

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ACTION: A/D LIICENSNG'4 1. 1 05>> 1 1 RUSHBROOK'EM' 06 1 1 'HILSONEJERRY 07 1. 1 INTERNALS: AD'/RCI'/IEi 17 1, AEOD 1 IR 18'/D ASLBP/J,HARD 1 HUM F AC:1 5 1 1 EDO Ii'TAFFI 19 EQUIP QUALI BR11. 1 KYD/GKOi BR'2 1 1 I tl Kr 09 1

1 1 LZC QUALI BR 12. 1. MPA 20 1.

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NSIC>> 08 1 1 DEC 2 1980 TOTAL>> NUMBER OF>> COPIES RKQUIRED: LTTR 39 ENCL>> 39 C.g,

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l FOAM 21-SOM Carolina Power & Light Company Aalelgh, N, C. 27602 File! SH N>>2/18 Xtem 52 November 24, 1980 Mr. James P. O'Reilly United States Nuclear Regulatory'Commission, Region XX 101 Marietta Street, Northwest Atlanta, Georgia 30303 SHEARON HARRXS NUCLEAR POWER PLANT UNXTS 3.~ 2, 3 A1TD 4 DOCKET NOS. 50-'400, 50-401, 50-402 AND 50-403 NONSAPETY HVAC POR CLASS lE MOTOR CONTROL CENTERS INTERIM REPORT

Dear Mr. O'Reilly:

As required by 10CPR50.55(e), attached is an interim report on the subject deficiency. Due to the extensive nature of the problem, all corrective action has not yet been completed and it is now anticipated that all, corrective action will be completed by Pebruary 15, 1981, at which'ime the final 10CPR50.55(e) report will be submi.tted.

Thank you for your consideration in'his matter.

NJC/mt (425,627) Yours very truly, Attachment Original Signad By cc: Mr. G. Maxwell W/A Mr. V. Stello (2) W/A

<. J. Chiangi N. J. Chiangi Manager Engineering & Construction Quality Assurance

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SHEARON HARRIS NUCLEAR POWER PLANT UNIT NO. 1 NONSAFETY HVAC FOR CLASS 1E MOTOR CONTROL CENTERS Interim Report November 10, 1980 Reportable Under 10CFR50.55(e)

Prepared by: Carolina Power & Light Company

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SUBJECT:

10CFR50.55(e) Reportable Item Shearon Harris Nuclear Power Plant" (SHNPP)

Nonsafety HVAC for Class lE Motor Control Centers IT&fS:

MCC's 1A-35SA, MCC 1B-35SB, 2A-35SA & 2B-35SB SUPPLIED BY: Design Ebasco Services, Inc.

NATURE OF DEFICIENCY:

Class 1E Motor Control Centers are not cooled by safety-related HVAC, as stated in the SHNPP FSAR.

DATE PROBLEM HAS CONFIRMED TO EXIST: 'ctober 17, 1980 PROBLEM REPORTED:

October 17, 1980, CP&L (L. I. Loflin, K. V.'ate & R. K.

Cothren) informed the NRC Region II office (Mr. J.- K. Rausch) by telephone that the problem was "potentially reportable" under 10CFR50.55(e).

October 27, 1980 CP&L (N. J. Chiangi) informed the NRC Region II office (Mr. J. K. Rausch) by telephone that the problem was reportable under 10CFR50.55(e).

SCOPE OF PROBLEM:

Equipment located in the common area of the Reactor Auxiliary Building (RAB) between Units 1 & 2 at Elevations 261 and 236 are not supplied with safety-related HVAC and may not be qualified for the room temperatures which will be reached in the event that electrical power and hence, ventilation, is lost.

REASONS(S) PROBLEM WAS REPORTABLE:

Class lE equipment in the Unit One & Common Reactor Auxiliary Building is cooled by safety-related HVAC equipment in order to reduce the temperature extremes to which this equipment would be subjected in the event of a LOCA. The Motor Control Centers at the 261 elevation of the Units 1 & 2 Common RAB 0 are Class lE and are qualified to a room temperature of 104 F (40 C). The normal HVAC for this elevation, as well as the 236'ommon RAB elevation, has a Non-1E power supply. In the event of a loss of HVAC, the temperature 0 in the area of the Motor 0

Control Centers could exceed 104 F (piping containing 120 F fluid passes through this area). Since the Motor Control 0

Centers are not qualified for temperatures above 104 F, the continued functioning of the MCCs cannot be certified.

This condition deviates from the SHNPP FSAR Section 3.11.4.1 which states that "Plant areas containing ESF and RPS equipment and their ~su ort ~s stems are temperature controlled to provide a controlled environment even during the most severe DBA condition."

Since the design of the Unit 1: and Common RAB has been approved and released for construction, this condition constitutes a significant deficiency which does not conform to the criteria and bases stated in the Safety Analysis Report.

CORRECTIVE ACTION:

A design change has been developed and issued for incorporation which adds safety-related HVAC units at the 286 elevation of the Unit 1 and Common Reactor Auxiliary Building. These HVAC units will provide safety-related ventilation to MCCs 1A-35SA, 1B-35SB, 2A-35SA and 2B-35SB.

In addition, the architect-engineer (Ebasco) is preparing detailed temperature maps of the plant in order to verify that no such condition exists elsewhere in the plant. A detailed review of each equipment item against the temperature expected to exist in the area of the plant where the item is located will then be conducted. This review is expected to be complete, design changes initiated, February 15, 1981.

if required, and final report issued by

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