ML20052D040

Forwards Revised Responses to Concerns Identified in Draft SER for Instrumentation & Control Sys Branch.Responses Will Be Incorporated Into Future FSAR Amend

ML20052D040
Person / Time
Site:	Perry
Issue date:	04/29/1982
From:	Davidson D CLEVELAND ELECTRIC ILLUMINATING CO.
To:	Schwencer A Office of Nuclear Reactor Regulation
References
NUDOCS 8205060218
Download: ML20052D040 (4)

Text

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i THE CLEVELAND ELECTRIC ILLUMIN ATING COMPANY P o. Box 5000 m CLEVELAND. oHlo 44101 m TELEPHONE (216) 622-9800 m ILLUMINATING BLOG.

m 55 PUBLIC SoUARE Serving The B.st Location in the Nation D:1wyn R. Davidson VICE PRESIDENT SYSTE M ENGINEERING AND CONSTRUCTION April 29, 1982 t

Mr. A. Schwencer Chief, Licensing Branch No. 2 Division of Licensing U. S. Nuclear Regulatory Commission Washington, D. C.

20555 Perry Nuclear Power Plant Docket Nos. 50-440; 50-441 Response to Draft SER Instrumentation and Control Systems Branch

Dear Mr. Schwencer:

This letter and its attachment is submitted to provided revised responses to the concerns identified in the Draft SER for Instrumentation and Control Systems.

It is our intention to incorporate these responses in a subsequent amendment to our Final Safety Analysis Report.

Very Truly Yours, b

Dalwyn R. Davidson Vice President System Engineering and Construction DRD: mlb cc:

Jay Silberg gjj._Q John Stefano Max Gildner

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421.48 General Design Criterion 19 requires potential capability for subsequent cold shutdown.of the reactor through the use of suitable procedures. Provide a su= mary of the procedures used to achieve cold shutdown from outside the control room.

Include a list of the systems required for cold shutdown from outside the control room and the location of the panels where these system controls are housed.

Show how the cold shutdown procedures meet the single failure criterion.

Response

a.

PERRY NUCLEAR P0kT.R PLANT REMOTE SHUTDOWN SYSTEM-SINGLE FAILURE CRITERION PRESENT DESIGN, I&C FROM REMOTE SHUTDOWN ADDITIONAL I&C TO. MEET SINGLE FAILURE PANEL CRITERION RCIC Nothing ad'ditional - assume automatic f

(Div. 1, turbine and valves) operation of HPCS to maintain RPV water level ADS Controls for same 3 valves using the (Div. 1, on 3 solenoids)

Div. 2 solenoids en local panel in Div. 2 swgr. room.

RHR Controls for equivalent Div. 2 pump (Div. 1 pump and valves and flow and valves from Div. 2 swgr. room.

indication)

RHR Div. 2 flow indicator on local panel in Div. 2 swgr. room.

ESW Controls for equivalent Div. 2 pump (Div. I pump and valves and flow and valves from Div. 2 swgr. room.

indication)

ESW Div. 2 flow indication for RHR "B" H/X and ECCS "B" H/X on local panel in Div. 2 s"gr. room.

ECC Control for equivalent Div. 2 pump (Div. I pump and flow indication) frot Div. 2 swgr. room.

ECC Div. 2 flow indication on local panel in Div. 2 swgr. room Misc.

Indicators for equivalent Div. 2 Div. I Recorders for:

parameters on local panel in Div. 2 RPV level

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RPV pressure Drywell pressure gh Drywell temperature Suppression pool level Suppression pool temperature

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421.48 Response (Cont'd)

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b.

The present remote shutdown panel location and the proposed loation for

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new controls in the Division 2 switchgear room are served by the MCC, I

switchgear and m scellaneous area HVAC system. This system is i

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independant of the control room HVAC system.

The M23 system is discussed in Section 7.3.1.1.8 page 7.3-31 and shown on l

Figure 9.4-1.

Additional discussion is provided in Section 9.4.1.2 page 9.4-5.

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Indicators for ADS valves and ADS controllers will be located together on one panel.

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.l.zt.42 In" resperse to ti.e E' C st a f f's r.ew positi on cn r e :.ote shutdtwn it e

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requested to verify as safety grade all instruments associated with the remote shutdown panel. The PNPP remote shutdown panel will have the l

following safety related instruments:

SAFETY RELATED System Readout Sensor Fcwer Sc.urce

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E51 Yes Yes Yes E12 Yes Yes Yes 321 N/A Yes Yes P42 Yes Yes Yes P45 Yes Yes Yes D23 Yes Yes Yes N'.O E S :

1.

E51 kC1C fi:w controller and indicator are fully safety related.

D23recordersandindicatorsprovidedrywellandsuppressionpoollevel,l 2.

pr' essure and temperature recordings.

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