ML18139B827
| ML18139B827 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 03/26/1982 |
| From: | Leasburg R VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | Harold Denton, Varga S Office of Nuclear Reactor Regulation |
| References | |
| 186, NUDOCS 8204060064 | |
| Download: ML18139B827 (1) | |
Text
VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND~ VIRGINIA 23261 R.H.LEASBl'.JRO V:xoE PRESIDENT NUCLE4.R OPERATIONS March 26, 1982 Mr. Harold R. Denton, Director Office Attn:
Mr. Steven A. Varga, Chief Operating Reactors Branch Division of Licensing U. S. Nuclear Regulatory Commissi Washington, D. C. 20555 Gentlemen:
Serial No. 186 NO/RMT:acm Docket No. 50-280 50-281 DPR-32 DPR-37 License No.
During the period of 1345 to 1420 hrs., February 12, 1982, the average rate of change of the condenser cooling water outlet temperature was l2°F/hr. which exceeds the 3°F/hr. rate of change permitted by Technical Specification 4.14.A.3.
At the time of this event, unit one was at 100% power and unit two was at Hot Shutdown.
The failure of the vacuum priming system at the River intake substantially reduced the circulating water flow into the intake canal.
Throttling of the flow through the condenser water boxes to preserve canal water level resulted in the temperature limits being exceeded.
The vacuum priming system has been repaired and returned to service.
A search was conducted to determine if the canal temperature excursion had adversely affected the River Environment.
No detrimental evidence was found.
cc:
Mr. James P. O'Reilly Regional Administrator Region II Vei/Xs, R.H. Leasburg