ML20235P313
| ML20235P313 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 07/09/1987 |
| From: | Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| 87-370, NUDOCS 8707200441 | |
| Download: ML20235P313 (1) | |
Text
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Tech. Spec. 6.9.2.h VInOINIA ELucTnic AND Pownn Comwxy HIcnwonn,VinoINIA 20261 W,1,. STEWAMT Vaca Passanswv w o cm o '""^*""
July 9, 1987 United States Nuclear Regulatory Commission Serial No.87-370 Attention: Document Control Desk N0/NSP Washington, D.C.
20555 Docket No.
50-338 License No. NPF-4 Gentlemen:
VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION UNIT 1 SPECIAL REPORT - POSITIVE MODERATOR TEMPERATURE COEFFICIENT During Startup Physics Testing for Unit
- 1. Cycle 7, a positive moderator temperature coefficient of
+1.24 pcm/ F was measured.
Conservative calculations demonstrate that the moderator temperature coefficient will be negative at 70% reactor power. Therefore, control rod withdrawal limits are not necessary since these values are within the Technical Specification limits of section 3.1.1.4.a.
This report is submitted in accordance with Technical Specification 6.9.2.h.
Very trul' yours, g -
4
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KdN W. L. S wart cc:
U. S. Nuclear Regulatory Commission 101 Marietta Street, N.W.
Suite 2900 Atlanta, CA 30323 Mr. J. L. Caldwell NEC Senior Resident Inspector North Anna Power Station i
8707200441 8'70709 f
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