ML19253B821

Responds to 790925 Ltr Requesting Addl Info Re IE Bulletin 79-01, Environ Qualification of Class IE Equipment. Forwards Equipment Descriptions.Describes Insp Methods Used in Verifying Components & Mods to Transmitters

ML19253B821
Person / Time
Site:	Point Beach
Issue date:	10/09/1979
From:	Fay C WISCONSIN ELECTRIC POWER CO.
To:	Heishman R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
NUDOCS 7910220282
Download: ML19253B821 (4)

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. 1 Wisconsin Electnc rom cower 231 W. MICHIGAN, P.O. BOX 2046. MitWAUKEE, WI 53201 October 9, 1979 Mr. J. G. Keppler, Director Office of Inspection and Enforcement, Region III U. S. NUCLEAR REGULATORY COMMISSION 799 Roosevelt Road Glen Ellyn, Illinois 60137 Attention: Mr. R. F. Heishman Gentlemen:

DOCKET NOS. 50-266 AND 50-301 IE BULLETIN 79-01 ADDITIONAL INFORMATION POINT BEACH NUCLEAR PLANT

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This is in response to your letter of September 25, 1979, requesting additional information in response to IE Bulletin 79-01 The additional infor-mation is as follows:

1. The equipment descriptions are included in the attached Table A.

2 Several methcds were used to verify that the components included in our equipment description are, in fact, installed and are the same as those for which qualifi-cation documentation exists. These methods include a combination of direct observation by plant personnel, _

review of maintenance records, and review of original purchase docurants.

3. The limit switches identified as Item 5 in our response to Bulletin 79-01 provide valve position indication in the control room for the air operated containment isola-tion valves located inside containment. These switches

, are environmentall:- qualified as described in our response to Bulletin 79-01 4

The modifications to the Foxboro transmitters were:

a) Liberal use of RTV sealant in the conduit connections; b) Breather assembly replaced with a blow-out disc; 1150 1 34 7 910220 EN DCT 111979

', Mr. J. G. Keppler, Director October 9,1979

4. c) Viton 0-rings for cover and zero adjustment; and d) Teflon lead wires.

AslistedinourresponsetoBulletin79-01,themodifiedi transmitters will perform their intended safety function -

under the specific LOCA conditions to which they would be exposed. Chemical spray is not applicable since the intended function of the transmitters would be completed prior to chemical spray initiation.

5. Ancillary components and parts were qualified with, and as part of, the equipment listed in our response to Bulletin 79-01. In all cases where safety-related equipment is involved, maintenance or replacement parts are replaced with like parts. Substitution is not allowed. Should a part be no longer available, a substitute will be used only when it has been determined that the substitute part has been qualified and is equal to or better than the original part for the intended service.

While we do not have much difficulty in providing this requested information in this case, we believe that the seven-day response time you requested is inappropriate. It appears arbitrary and unreasonable to require a seven-day response when the original Bulletin allowed 120 days for our review and our response to that Bulletin has been in your hands for over three months.

The numerous bulletins from your office and additional requests for infonnati.on and action from NRR are placing unprecedented burdens on licensees, resulting in diversion of strategic personnel. We are sure you are aware that we are trying to make full and complete responses to these many inquiries in a timely manner without jeopardizing the safety of our nuclear plant operations.

Your understanding and cooperation in this regard is appreciated.

Very truly yours, C. W. Fay, Director Nuclear Power Department Attachments i

L 1150 i35

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..., TABLE A .

EQUIPMENT DESCRIPTIONS .

MODEL ITEM NAME MANUFACTURER OR TYPE EQUIPMENT _NO. SYSTEM FUNCTION 1 Containnent Fan Westinghouse Frame 504US WlAl Containment Provide post-accident Cooler Motor - WlB1 - cooling 150 hp WlC1 WlD1 2 Valve Motor Reliance / SMB/0 M0V-852A&B Safety Injection Reactor Vessel Injection Operators Limitorque Isolation Peerless / SMB/00 M0V-8788&D Cold Leg Injection Limitorque Isolation Reliance / SMB/2 MOV-841A&B Accumulator Isolation Limitorque (lockedopen) 3 Instrument Foxboro 611GM-DSI PT-429, -430, Reactor Pressurizer Pressure Transmitters -431, -449 Protection Transmitters 613HM-MAI LT-426, -427, Pressurizer Level

-428, -461 Transmitters

-462, -463, Steam Generator

-471, -472, Level Transmitters

-473 4 Solenoid Pilct ASCO 8320A7 V-3213 Containment Exhaust isolation Valves V-3245 Purge Supply isolation LBX831616 V-1296 Aux, charging Isolation 8302C25F V-3200C Air sample Isolation

5. Stem Mounted NAMCO EA180 V-3213 Containment Val.ve Position

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Limit Switches V-3245 Isolation Indication V-1296 cy, V-3200C CD 6 Level Indicator Magnetrol A-153 LC-942 A&B Residual Heat Containment Sump

--- LC-943 A&B Removal Level Indication tu c7' 7 Power and Control Kerite HT Kerite/ N.A. Various Maintain insulation Cable FR and conductor integrity.

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.., TABLE A (Cont'd) .

MODEL ITEM NAfE MANUFACTURER OR TYPE EQUIPMENT NO. SYSTEM FUNCTION 8 Instrument and Boston Insulated Silicone / N.A. Various Maintain insulation Control Cable Wire Silicone and conductor

. integrity 9 Penetration Splices Raychem SFR N.A. Various Provide electrical insulation and moisture seal for splices 10 Electrical Westiaghouse Welded, El-E58 Containment Maintain containment penetrations Cannister pressure boundary 11 Residual Heat Westinghouse Frame P10A, P10B Residual Heat Pump motor Removal Pump Motor, 445TS Removal 200 hp 12 Safety Injection Westinghouse Frame PISA, P15B Safety Injection Pump motor Pump Motor, 700 hp 688.5H tn c3

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