ML18139A274
| ML18139A274 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 05/23/1980 |
| From: | Sylvia B VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | |
| References | |
| 457, NUDOCS 8005300389 | |
| Download: ML18139A274 (1) | |
Text
e VIRGIN:IA ELECTll.IC A.ND POWER COMPANY Rxc:e:MOND, VrRGXN 1A 23261 May 23, 1980 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation Attn:
Mr. Steven A. Varga, Chief Operating Reactor Branch No. l Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C.
20555
Dear Mr. Denton:
Serial No. 457 NO/RMT:ms Docket Nos:
50-280 50-281 DPR-32 DPR-37 License Nos:
This letter report is furnished in accordance with the provisions of Surry Power Station Technical Specification 4.14.C.l.
During the period from 0000 to 0100 on May 12, 1980 the condenser cooling water outlet temperature exceeded a temperature change rate of 3°F/hr., which is the maximum permitted by Technical Specification 4.14.A.3.
Unit l was operating at 50% power and Unit 2 was in cold shutdown during the occurrence.
During power escalation with only three (3) circulating water pumps in opera-tion, the canal intake level began to drop.
While throttling the waterboxes in the process of maintaining the canal level, the groin temperature exceeded the allowable limits established in Technical Specification reaching a rate of change of 5.5°F/hr.
A search was conducted to determine if the temperature change had affected the river environment.
No evidence of detrimental effects was found.
cc:
Mr. James P. O'Reilly Very truly yours,
~~
Manager-Nuclear Operations and Maintenance