ML20198N984

Notifies That All Remaining Equipment Determined to Require 10CFR50.49 Qualification Will Be Qualified Prior to Restart from Current Outage,In Accordance W/Util 850131 & 0304 Ltrs. Final Disposition of Reg Guide 1.97 Equipment Upgrades Encl

ML20198N984
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	06/02/1986
From:	Capstick R VERMONT YANKEE NUCLEAR POWER CORP.
To:	Muller D Office of Nuclear Reactor Regulation
References
RTR-NUREG-0737, RTR-NUREG-737, RTR-REGGD-01.097, RTR-REGGD-1.097 FVY-86-54, NUDOCS 8606060213
Download: ML20198N984 (4)

Text

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VERMONT YANKEE NUCLEAR POWER CORPORATION RD 5 E'ox 169 Ferry Road, Brattleboro, VT 05301 y,go iqgf ENGINEERING OFFICE 1671 WORCESTER ROAD FRAMINGHAM, MASSACHUSETTS 01701 TELE PHONE 6tF-872-8100 June 2, 1986 FVY 86-50 United States Nuclear Regulatory Commission Washington, DC 20555 Attention:

Office of Nuclear Reactor Regulation Mr. Daniel R. Muller, Director BWR Project Directorate No. 2 Division of BWR Licensing

References:

(a) License No. DPR-28 (Docket No. 50-271)

(b) Letter, VYNPC to USNRC, FVY 84-127, dated October 30, 1984 (c) Letter, USNRC to VYNPC, NVY 84-263, dated Dec9mber 12, 1984 (d) Letter, VYNPC to USNRC, FVY 85-11, dated January 31, 1985 (e) Letter, VYNPC to USNRC, FVY 85-23, dated April 3, 1985 (f) Letter, VYNPC to USNRC, FVY 85-40, dated May 3, 1985 (g) Letter, USNRC to VYNPC, NVY 85-173, dated August 19, 1985 (h) Letter, VYNPC to USNRC, FVY 85-99, dated October 25, 1985

Subject:

Environmental Qualification of Electrical Equipment Important to Safety (10CFR50.49)

Dear Sir:

The purpose of this letter is to notify you that, in accordance with Vermont Yankee's (VY's) letters of January 31, 1985 and March 4, 1985

[ References (d) and (e)], all remaining equipment determined to require 10CFR50.49 qualification will be qualified prior to restart from this current outage. Enclosure 1 reflects the final disposition of equipment identified in the staff's December 12, 1984 Safety Evaluation of the Vermont Yankee Environmental Qualification Program (VYEQP) [ Reference (c)], as subsequently revised in Reference (d).

In addition to the qualification status of equipment covered under the current scope of the VYEQP, we are also providing you with a status of the VY Regulatory Cuide 1.97 equipment upgrades which fall within the scope of 10CFR50.49.

In response to the Staff's August 19, 1985 [ Reference (g)]

request, VY submitted additional information (Reference (h)] responding to the preliminary staff review of VY's NUREG 0737, Supplement No.1, Regulatory Guide 1.97 Program. As stated in that response, VY's understanding based upon the Staff's December 12, 1984 Safety Evaluation of the VYEQP, was that a final decision on the scope of environmental qualification for post-accident g6o28MtBETg2 Mi e

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l United States Nuclear Regulatory Comunission June 2, 1986 Attention:

Mr. Daniel R. Muller, Director Page 2 i

monitoring equipment would be made during the Regulatory Guide 1.97 resolution process. Although VY directly addressed the environmental qualification status of Regulatory Guide 1.97 equipment in our Regulatory Guide 1.97 Program and October 25, 1985 letter [ Reference (h)), it is now clear that 50.49 issues will not be addressed by the Staff in the review of VY's Regulatory Guide 1.97 Program. To ensure that there is no question with regard to VY's 10CFR50.49 compliance status, we are providing, as Enclosure 2 to this letter, the final 4

disposition of VY's Regulatory Guide 1.97 equipment qualification upgrades associated with the VYEQP. As previously stated in References (b) and (h),

t this equipment will be qualified prior to restart from this current outage.

We trust that this information is satisfactory; however, should you have any questions or require additional information concerning the VYEQP, please contact this office.

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Very truly yours, i

VERMONT YANKEE NUCLEAR POWER CORPORATION l

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Licensing Engineer RWC/dps Enclosures i

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ENCLOSURE 1 e

4 JUSTIFICATION FOR CONTINUED OPERATION EQUIPMENT LIST JCO NO.

DESCRIPTION DISPOSITION 29 General Electric Control Rod Drive Mechanism As a result of additional (Position Indication, Switches, Cables, and review under Regulatory Connectors)

Guide 1.97, VY has determined that control rod position indication equipment serves a backup indication function and does not require environmental qualification.

JCO No. 29 is no longer applicable.

39 General Electric Local Pcwer Range Monitor Will be qualified upon System (Neutron Detectors, Indication, startup from present Cables, and Electrical Connections) outage.

9 43 Limitorquo SMB-00 Assembly for MOV-lO-32 This valve does not require (RHR Head Spray Isolation) environmental qualification.

The head spray line is capped inside the drywell and this 1

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valve serves no safety function. JCO No. 43 is not required.

46 Limitorque SMB-000 Motor for MOV-13-15 Will be qualified upon i

I (RCIC Inboard Steam Isolation) startup from present outage.

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69 Limitorque SMB-O Motor for MOV-10-39A Will be qualified upon (RHR "A" Torus cooling and Spray startup from present f

j Outboard Isolation) outage.

66 ASCO Solenoid Operated Valvas, Will be qualified upoth SE-70-4A, 4B, 4C and 4D startup from present l

(Residual Heat Removal Service outage.

4 Water Cooling) 1

e ENCLOSURE 2 Post-Accident Monitoring Instrumentation EO Upgrades Parameter TAG Number Disposition Torus Pressure PT 16-19-36A Will be qualified PT 16-19-36B upon startup from present outage.

Torus Air Temperature TE-16-19-34 Will be qualified TE-16-19-41 upon startup from present outage.

Neutron Monitoring LPRMS Only Will be qualified upon startup from present outage.

RHR/LPCI Flow FT-10-109A Will be qualified FT-10-109B upon startup from present outage.

Torus /Drywell Spray Flow FT-10-111A Will be qualified FT-10-111B upon startup from present outage.

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