ML18082A444

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Submits Responses to NRC Request for Confirmation of Compliance W/Bulletins & Orders Task Force Recommendations Re Power Operated Relief Valve Failures in NUREG-0660,NRC Action Plans Developed as Result of TMI-2 Accident.
ML18082A444
Person / Time
Site: Salem PSEG icon.png
Issue date: 05/20/1980
From: Mittl R
Public Service Enterprise Group
To: Schwencer A
Office of Nuclear Reactor Regulation
References
RTR-NUREG-0660, RTR-NUREG-660, TASK-2.K.3.09, TASK-2.K.3.10, TASK-2.K.3.12, TASK-TM NUDOCS 8005220519
Download: ML18082A444 (2)


Text

.0 PS~G e Public Service Electric and Gas Company 80 Park Place Newark, N.J. 07101 Phone 201/430-7000 May 20, 1980 Director of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. c. 20555 Attention: Mr. A. Schwencer, Acting Chief Licensing Projects Branch 3 Division of Licensing Gentlemen:

B&O TASK FORCE RECOMMENDATIONS NO. 2 UNIT SALEM NUCLEAR GENERATING STATION DOCKET NO. 50-311 Public Service Electric and Gas Company hereby transmits its response to your telephone request for confirmation of com-pliance with certain B&O Task Force recommendations concern-ing PORV failures, as identified in Section II.K.3 of NU~EG-0660, "NRC Action Plans Developed as a Result of the TMI-2 Accident."

Recommendation C.3.9 For Westinghouse - designed reactors, modify the pressure integral derivative controller, if installed on the £ORV, to eliminate spurious openings of the

,j-.*

PORV. (Reference NUREG-0611, Section 3.2.4.b).

Response

The interlock setpoint has been raised to the same value as the control bistable. This modification was made in conjunction with the Safety Injection initia-tion logic change to eliminate the coincident require-ment for low pressurizer level with low pressurizer pressure.

Recommendation C.3.10 For Westinghouse - designed reactors, if the anticipat-ing reactor trip upon turbine trip is to be modified to be bypassed at power levels less than 50 percent, rather than below 10 percent as in current designs, demonstrate that the probability of a small-break LOCA Boo/

resulting from a stuck-open PORV is not significantly changed by this modification. (Reference NUREG-0611,

.s Section 3.2.4.c). ,/o The Energy People p 80052205 I/ 95-0942

1'" ....

Director of Nuclear 5/20/80 Reactor Regulation

Response

This modification will not be implemented.

Recommendation C.3.11 Demonstrate that the PORV installed in the plant has a failure rate that is not significantly greater than the valves for which there is an operating history.

(Reference NUREG-0611, Section 3.2.4.d).

Response

This recommendation is not applicable, since the PORV's used in the Salem plant are Copes-Vulcan valves.

Recommendation C.3.12 For Westinghouse - designed reactors, confirm that there is an anticipatory reactor trip on turbine trip.

(Reference NUREG-0611, Section 3.2.4.a).

Response

The Salem design incorporates an anticipatory reactor trip on turbine trip.

Should you have any further questions in this regard, do not hesitate to contact us.

Very truly yours,

,R/~~-

R. L. Mittl ~

General Manager -

Licensing and Environment Engineering and Construction CQ23 1/2