ML20198C615

Forwards Special Electrical Distribution Sys Functional Insp Repts 50-440/91-05 & 50-441/91-03 on 910429-0524.No Violations Noted.Team Considered Design & Operation of Electrical Distribution Sys Acceptable

ML20198C615
Person / Time
Site:	Perry
Issue date:	06/27/1991
From:	Miller H NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:	Lyster M CLEVELAND ELECTRIC ILLUMINATING CO.
Shared Package
ML20198C619	List: IR 05000440/1991005 ML20198C615
References
NUDOCS 9107030096
Download: ML20198C615 (2)

See also: IR 05000440/1991005

Text

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JUN 2? YA1

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Docket No. 50-440

Docket No. 50-441

The Cleveland Electric Illuminating

Company

ATTN: Mr. Michael D. Lyster

Vice President -

Nuclear - Perry

10 Center Road

Perry, OH 44081

Dear Mr. Lyster:

This refers to the special electrical dir.tribution system

functional inspaction (EDSFI) conducted by Mr. J. H. Neisler and

others of this of fice on April 29 through !!ay 24, 1991. The

inspection evaluated activities at the Perry Nuclear Power Plant,

Units 1 and 2, authorized by NRC Operating License No. NPF-58 and

NRC Construction Permit No. CPPR-149. We discussed our

inspection findings with Mr. B. E. Beyer and other members of

your staff at the conclusion of the inspection on May 24, 1991.

The enclosed copy of our inspection report identifies areas

examined during the inspection. The team assessed the design,

implementation, and engineering technical support relative to the

electrical distribution system. The inspection consisted of a

selective review of design calculations, re. levant procedures,

representative records, installed equipment, and interviews with

engineering and technical support staff.

-

The team considered the design and operation of tht; electrical

distribution syste.n at Perry to be acceptable. The electrical

distribution system appeared to be functional under design

conditions. Several strengths were noted, including the

surveillance test program, the material condition of the

electrical distribution system, the robust design to provide

additional safety margins and capacity, and the improvements in

the function of the independent safety engineering group (ISEG).

,

However, several weaknesses were also identified. Examples

included nonconservative assumptions in cable sizing calculations

and voltage drop studies, the lack of a comprehensive load growth

control program and incorrect assun.ptions .in battery sizing

calculations.

No violations of NRC requirements were identified during the

course of this inspection.

In accordance with 10 CFR 2.790 of the Commission's regulations,

a copy of this letter and the enclosed inspection report will be

placed in the NRC Public Document Room.

9107030096 910627 l

PDR ADOCK 05000440 l

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.. . . _ . - . _ . _ - . . _ . _ - - . . - - - -

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The Cleveland Clectric 2 JUN 2 7 GM ,

Illuminating Company

We will gladly discuss any questions you have concerning this

inspection.

Sincerely,

L . , , m . .. w a . . . -. .. , j j , .i. ,i l,1

H. J. Miller, Director

Division of Reactor Safety

Enclosure: Inspection Reports

No. 50-440/91005(DRS);

No. 50-441/91003(DRS)

cc w/ enclosure:

F. R. Stead, Director, Nuc1 car

l Support Department

R. A. Stratman, General Manager,

Perry Nuclear Power Plant

M. J. Hayner, Acting Manager,

Licensing and Compliance section

! S. F. Kensicki, Director, Perry

l Nuclear Engineering Department

H. Ray Caldwell, General

,

Superintendent, Nuclear

'

Operations

, DCD/DCB (RIDS)

l OC/LFDCB

Resident Inspector, RIII

Terry J. Lodge, Esq.

James W. Harris, State of Ohio

Robert E. Owen, Administrator,

Radiological Health Program,

Ohio Department of Health

A. Grandjean, State of Ohio,

Public Utilities Division

l Clinton SRI

NRR, DRIS

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