ML20204H742
| ML20204H742 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 10/30/1984 |
| From: | Edelman M CLEVELAND ELECTRIC ILLUMINATING CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| (RDC-116(84)), NUDOCS 8411120370 | |
| Download: ML20204H742 (2) | |
Text
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yn6 T !! E C L E V E L A N D E L E C T R I C I L L li M I N AT I N G l' O M P A N Y P.o. box 5000 - CLEVELAND. ohio 44101 - TELEPHONE (216) 622-9800 - lLLUMINATING Bl.DG.
- 55 PUBLICSQUARE Serving The Best Location in the Nation October 30, 1984 MURRAY R. EDELMAN VICE PRESIDENT NUCLEAR Mr. James G. Keppler Regional Administrator, Region III Office of Inspection and Enforcem9.nt U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137 RE:
Perry Nuclear Power Plant Docket Nos. 50-440; 50-441 Design of Control and Computer Room Humidification System [RDC 116(84)]
Dear Mr. Keppler:
This letter serves as the interim report pursuant to 10CFR50.55(e) on the potential deficiency concerning use of nonsafety humidity detectors related to control complex HVAC systems.
Mr. R. C. Knop of your office was notified on October 2, 1984, by Mr. T. A. Boss of The Cleveland Electric Illuminating Company that this problem was being evaluated per our Deviation Analysis Report 204.
This report contains a description of the deficiency and corrective action.
Description of Deficiency Enviror. mental Zone CB-3 (Control Complex Elev. 679'), identified in the Equipment Qualification Program as a mild environment, houses safety-related equipment associated with the control complex HVAC systems. This zone also houses the nonsafety control and computer room humidification system (M29).
The piping of this low pressure humidification system is classified as high energy piping.
To protect the mild environment classification of Zone CB-3 from the effects of a postulated break in the M29 system, redundant humidity detectors are provided. These humidity detectors which are part of the M29 system are unqualified nonsafety components. Failure of these detectors during a postulated pipe break would result in an environmental condition in Zone CB-3 for which the safety-related equipment in that zone is not qualified.
8411120370 841030 PDR ADOCK 05000440 NOV 1 1984 PDR
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-l Planned Corrective Action J
lGil'bert/ Commonwealth,1Inc., our Architect / Engineer, is currently reviewing
?several options to_ resolve this issue.
- We. anticipate' the next report on the subject to be submitted by 1 December: 14,.1984.
' Please.- call: if there ar additional questions.
4 Sincerely,
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- 1. Edelman.
Vice esident Nuclear Group
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cc:- Mr.'J. A.:Grobe NRC Site Office Director-
- Of fice of Inspection r 1d Enforcement-U.S. Nuclear' Reg'latory Commission' iWashington,.D.C.
20555 EU.S. Nuclear Regulatory. Commission-c/o' Document Management Branch-Washington, D.C.
20555.
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- Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500
.-Atlanta, Georgia 30339 Q
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