ML20202J415

Forwards Safety Evaluation & Lll Technical Evaluation Rept Accepting Util Design Mods & Tech Spec Changes Re Degraded Grid Voltage Protection for Class 1E Power Sys (Multi-Plant Action Item B-23)

ML20202J415
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	03/31/1986
From:	Rooney V Office of Nuclear Reactor Regulation
To:	Capstick R VERMONT YANKEE NUCLEAR POWER CORP.
Shared Package
ML20197F824	List: ML20197F819 ML20202J415 ML20202J421
References
NUDOCS 8604160033
Download: ML20202J415 (4)

Text

Docket No.: 50-271 Mr. R. W. Capstick Licensing Engineer Vermont Yankee Nuclear Power Corporation 1671 Worcester Road Framingham, Massachusetts 01701 ash a 11986

SUBJECT:

DEGRADED GRID V0LTAGE PROTECTION FOR CLASS 1E POWER SYSTEMS (MULTI-PLANT ACTION ITEM B-23)

Re: Vermont Yankee Nuclear Power Station The NRC staff has completed its review of the subject iteu at Vermont Yankee.

The criteria and staff position pertaining to degraded grid voltage were transmitted to you by NRC Generic Letter dated June 3, 1977. In response to this letter you proposed certain design modifications, implementation of operator procedures, and changes to the Technical Specifications. The staff has reviewed your design modifications, draft operator procedures and draft Technical Specifications and has found them to be acceptable. Based on our related Safety Evaluation, which includes the supporting technical report prepared by our contractor, Lawrence Livermore Laboratory, we consider Multi-Plant Action Item B-23 resolved for your facility.

Our evaluation of final operator procedures and Technical Specifications which you have proposed will be processed in a separate action.

Sincerely, Orfsinal c!cced by Vernon L. Rooney, Project Manager EWR Project Directorate #2 Division of BWR Licensing

Enclosure:

DISTRIBUTION Safety Evaluation 1 Docket File e NRC~PDR " "

cc w/ enclosure: Local PDR See next page RBernero OELD EJordan BGrimes 8604160033 e60331 JPartlow PDR ADOCK 05000271 VRooney p PDR gggppjs ,

ACRS (10)

Gray File RDudley 0FFICIAL RECORD COPY JEmmami DB PD#2 DBL:PD#2 DBL:PD#2:D SN r s:nc VRooney DytJ1)k 3/.2f/86 3//).V/ 86 37, f /8

1 P

Docket No.: 50-271 Mr. R. S. Capstick Licensing Engineer Vermont Yankee Nuclear Power Corporation 1671 Worcester Road Framingham, Massachusetts 01701

SUBJECT:

DEGRALED GRID VOLTAGE PROTECTION FOR CLASS 1E POWER SYSTEllS (MULTI-PLANT ACTION ITEM B-23)

Re: Vemont Yankee Nuclear Power Station The NRC staff has completed its review of the subject item at Vermont Yankee.

The criteria and staff position pertaining to degraded grid voltage were transmitted to you by NRC Generic Letter dated June 3,1977. In response to this letter you proposed certain design modifications, implementation of operator procedures, and changes to the Technical Specifications. The staff has reviewed your design modifications, draft operator procedures and draft Technical Specifications and has found them to be acceptable. Based on our related Safety Evaluation, which includes the supporting technical report prepared by our contractor, Lawrence Livermore Laboratory, we consider Multi-Plant Action Item B-23 resolved for your facility.

Our evaluation of final operator procedures and Technical Specifications which you have proposed will be processed in a separate action.

Sincerely, Daniel R. Muller, Director BWR Project Directorate #2 Division of BWR Licensing

Enclosure:

DISTRIBUTION Safety Evaluation Docket File NRC PDR cc w/ enclosure: Local POR See next page RBernero OELD EJordan BGrimes JPartlow VRooney SNorris ACRS (10)

OFFICIAL RECORD COPY Wh aO \f ,

l I

DBL:PD#2 DBL:PD#2 DBL:PD#2:D SNorris:nc VRooney DMuller 3/ /86 3/ /86 3/ /86

i

, i Docket No. 50-271 DISTRIBUTION Docket File NRC PDR Local PDR ORB #2 Reading Mr. R. W. Capstick DEisenhut Licensing Engineer OELD Vermont Yankee Nuclear Power Corporation SNorris 1671 Worcester Road VRooney Framingham, Massachusetts 01701 ELJordan JNGrace

Dear Mr. Capstick:

ACRS (10)

Gray File

SUBJECT:

DEGRADED GRID V0LTAGE PROTECTION FOR CLASS 1E RDudley POWER SYSTEMS (MULTI-PLANT ACTION ITEM B-23)

Re: Vermont Yankee Nuclear Power Station The NRC staff has completed its review of the subject item at Vermont Yankee. The criteria and staff position pertaining to degraded grid l voltage were transmitted to you by NRC Generic Letter dated June 3,1977.

In response to this letter you proposed certain design modifications, inplementation of operator procedures, and changes to the Technical Specifications. The staff has reviewed your design modifications, draft operator procedures and draft Technical Specifications and has found them to be acceptable. Based on our related Safety Evaluation, which includes the supporting technical report prepared by our contractor, Lawrence Livermore Laboratory, we consider Multi-Plant Action Item B-23 resolved for your facility.

By letter dated May 15, 1984, you committed to submit final operator procedures and Technical Specifications by October 1984. The.:e will be processed in a separate action.

Sincerely, 1

Domenic B. Vassallo, Chief Operating Reactors Branch #2 l i

Division of Licensing

Enclosure:

Safety Evaluation cc w/ enclosure:

See next page g

~

DL:0RB#2 DL:0RB#2 DL:bRB#5 DL:0RB#2 SNdVrTslajs VRooney RDudley DVassallo 09/Il/84 09/(1/84 09/g/84 09/ /84

Mr. R. W. Capstick Vermont Yankee Nuclear Power Corporation Vermont Yankee Nuclear Power Station cc:

k-Mr. W. F. Conway W. P. Murphy, Vice President &

President & Chief Executive Officer Manager of Operations Vermont Yankee Nuclear Power Corp. Vermont Yankee Nuclear Power Corp.

R. D. 5, Box 169 R. D. 5, Box 169 Ferry Road Ferry Road Brattleboro, Vermont 05301 Brattleboro, Vermont 05301 Mr. Donald Hunter, Vice President U. S. Environmental Protection Vennont Yankee Nuclear Power Corp. Agency 1671 Worcester Road Region I Office Framingham, Massachusetts 01701 Regional Radiation Representative JFK Federal Building New England Coalition on Boston, Massachusetts 02203 Nuclear Pollution Hill and Dale Farm Public Service Board R. D. 2 Eox 223 State of Vermont Putney, Vennont 05346 120 State Street 1 Montpelier, Vermont 05602 Mr. Walter Zaluzny Chairman, Board of Selectman Vermont Yankee Decomissioning Post Office Box 116 Alliance Vernon, Vermont 05345 43 State Street Montpelier, Vermont 05602-2964 J. P. Pelletier, Plant Manager Vennont Yankee Nuclear Power Corp.

Post Office Box 157 Resident Inspector Vernon, Vermont 05354 U. S. Nuclear Regulatory Comission Post Office Box 176 Raymond N. McCandless Vernon, Vermont 05354 Vennont Division of Occupational

& Radiological Health Vermont Public Interest Administration Building Research Group, Inc.

10 Baldwin Street 43 State Street Montpelier, Vermont 05602 Montpelier, Vermont 05602 Honorable John J. Easton Thomas A. Murley Attorney General Regional Administrator State of Vermont Region I Office 109 State Street U. S. Nuclear Regulatory Comission Montpelier, Vermont 05602 631 Park Avenue King of Prussia, Pennsylvania 19406 John A. Ritscher, Esquire Ropes & Gray Mr. Richard Saudek, Comissioner 225 Franklin Street Vermont Department of Public Service Boston, Massachusetts 02110 120 State Street Montpelier, Vennont 05602

. .