ML20077Q298

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Application for Amends to Licenses DPR-66 & NPF-73,revising Tech Spec Bases 3/4.4.9 Re Pressure/Temp Limits
ML20077Q298
Person / Time
Site: Beaver Valley
Issue date: 08/12/1991
From: Sieber J
DUQUESNE LIGHT CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20077Q301 List:
References
NUDOCS 9108210185
Download: ML20077Q298 (1)


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12, 1991 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 Subjcct: beaver Valley Power Station, Unit No. 1 and No. 2 BV-1 Docket No. 50-334, License No. DPR-66 BV-2 Docket No. 50-412, Licenso No. NPF-73 Technical Specification Bases 3/4.4.9 Revision Enclosed is a proposed change to Technical Specification Bases 3/4.4.9, Pressure / Temperature Limits. It is requested that the NRC issue this change to satisfy Unresolved Item 90-20-01 identified by the NRC Resident ...spector. The inspector identified the lack of specificity in the Technical Specifications regarding pressure / temperature limits applicable to isolated reactor coolant I loops. Therefore, the attached Westinghouse report " Development of Pressure-Temperature Limit Curves for a Loop Isolated from tho -

Reactor Vessel: Beaver Valley Units 1 and 2" was developed to provide recommended limits for an isolated loop. The Bases change includes a new Figure B 3/4 4-3 " Isolated Loop Pressure-Temperature Limit Curves" and a paragraph added to Bases 3/4.4.9 to describe the basis for the curve. This proposed change has been discussed with our NRC Resident Inspector and is submitted for final resolution of ,

the Unresolved Item.

The Bases are not part of the Technical Specifications in accordance with 10 CFR 50.36; theretore, a no signifIcant hazard evaluation has not been developed for this change. This change was reviewed by our Onsite Safety Committee and was determined to be safo j based on the Westinghouse report.

Sincerely, f

l

/ W D. Sieber

/ .

Vice President Nuclear Group Enclosure cc: Mr. J. Beall, Sr. Resident Inspector Mr. T. T. Martin, NRC Region I Administrator Mr. A. W. DeAgazio, Project Manager

Mr. M. L. Bowling (VEPCO) ,

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