ML20054C336

Addresses Items C-1.1 & C-9.3 Raised in Review of Remote Shutdown Panel Since Items Require Major Mods.Complete List of Mods Will Be Submitted Later.Proposed Changes Involve Considerable Expense

ML20054C336
Person / Time
Site:	Clinton
Issue date:	04/08/1982
From:	Jackie Cook ILLINOIS POWER CO.
To:	Alexandra Smith Office of Nuclear Reactor Regulation
References
NUDOCS 8204200391
Download: ML20054C336 (4)

Text

/LLIN0/S POWER 00MPANY CLINTON POWER STATION, R.R. #3, BOX 228. CLINTON. IL 61727 April 8, 1982 3 h NO p

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1. r Ms. Ann Ramey-Smith, Mail Stop 228 -

d' W 1 '9 p Division of Human Factors Safety E %gg,p p*i Q,7 U.S. Nuclear Regulatory Commission /

Washington, D.C. 20555  % sN N s\

Dear Ms. Ramey-Smith,

Illinois Power Company is in the process of reviewing the Remote Shutdown Panel (RSP) based on items raised in the Control Room Audit / Review from human factors engineering. I would like to address specifically two items raised in the review since these require major modifications to the panel.

The first is in response to item C-1.1 of the audit which deals with the spacing between the RSP and the adj acent electrical panel. Figure 1 shows the panel as it currently exists, consisting in order of Bays A, B, C, D and E. Bays A, B, C, and D constitute one assembly as does Bay E. IPC plans to rotate each assembly 180 degrees with the final arrangement of the panel being as shown in Figure 2. This rotation will increase the operating space of the RSP from 32 inches to approximately 48 inches which is the maximum attainable and we feel is adequate for safe operation of the panel.

4 The second concern which I would like to address, is in regard to item C-9.3 of the audit which states that the meters in the BOP

-l section of the RSP cannot be read from the location of the associated NSSS division 1 controls in the middle and left sections of the panel. It is clear from looking at Figure 2 that the rotation of the panels significantly reduces the distance between the meters and the controls. In addition to this, IPC is installing four division 2 meters in the NSSS division 2 section of the RSP.

These meters are redundant to the division 1 meters indicating; Reactor Water Level and Pressure, and Suppression Pool Temperature and Level. These meters will be installed so that the information is conveniently located for the operator when operating the RSP.

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8204200391 820408 PDR ADOCK 05000461 PDR

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April 8, 1982 t

A complete list of modifications arising from the audit will be supplied later and are not reflected on Figures 1 and 2.

However, since the changes proposed from items C-1.1 and C-9.3 involve considerable expense for Illinois Power Company, I thought it prudent to solicit your agreement with these modifications before we proceed.

I look forward to hearing from you.

Sincerely,

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( dohn G. Cook l -

Technical Supervisor JGC/jb Attachments cc: L. S. Brodsky, T-31 G. E. Wuller, F-33 J. P. O'Brien, F-33 T. F. Plunkett, T-31 i

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