ML20205S008
| ML20205S008 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 05/16/1986 |
| From: | Carey J DUQUESNE LIGHT CO. |
| To: | Tam P Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8606060098 | |
| Download: ML20205S008 (2) | |
Text
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M Telephone (412) 393 6000 Nuclear Group May 16, 1986 P.O. Box 4 Shippingport, PA 15071-0004 Director of Nuclear Reactor Regulation U.
S. Nuclear Regulatory Commission Attn:
Mr. Peter S. Tam, Project Manager Project Directorate No. 2 Division of PWR Licensing - A Washington, DC 20555
- Mail Stop 340 -
Reference:
Beaver Valley Power Station, Unit No. 1 Docket No. 50-334, License No. DPR-66 Reduced Duration Type A Testing Requirements Gentlemen:
In accordance with the Beaver Valley Power Station Unit No. 1 Technical Specifications 3/4.6.1.2, the provisions and methods of Appendix J to 10CFR50 and ANSI N45.4-1972 govern the duration of Type A
testing.
ANSI N45.4-1972, Section 7.9, computation of Leakage Rate-The Absolute Method, states that " Leakage rates shall therefore be calculated on at least an hourly basis for 24 consecutive hours (or other agreed upon period)".
Provisions for reduced duration Type A testing have been approved by the NRC.
These provisions are contained in the Bechtel Topical Report BN-TOP-1, Revision 1, November 1972.
Beginning with the fifth refueling
- outage, it is our intent to use the reduced duration test acceptance criteria at Beaver Valley Power Station Unit No. 1, until the ANS 56.8 Standard Committee develops new criteria for reduced duration testing based on the Mass Point Analysis Method.
l Beaver Valley's test acceptance criteria for reduced duration testing is based on the Mass Point Analysis Method as well as on the BN-TOP-1 criteria.
If,
- however, the full 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> duration is performed, only the Mass Point Analysis Method criteria would apply.
If you have any questions or concerns regarding our intention, please contact us at your convenience.
Very truly yours, NOS 8606060098 860516 J
J.
y PDR ADOCK 0D000334 ce President, Nuclear P
'fo
' B avar Valley Power Station, Unit No. 1 Dockot No. 50-334, Lictnsee No. DPR-66 Reduced Duration Type A Testing Requirements Page 2 cc:
Mr. W. M. Troskoski, Resident Inspector U. S. Nuclear Regulatory Commission Beaver Valley Power Station Shippingport, PA 15077 U. S. Nuclear Regulatory Commission c/o Document Management Branch Washington, DC 205554 Director, Safety Evaluation & Control Virginia' Electric & Power Company P. O. Box 26666 Ons James River Plaza Richmond, VA 23261 k
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