ML19345E220

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Informs of Intended Control of Reactor Coolant Vent Sys During Operation Prior to Review & Approval of Procedures. New Method Superior as Continuous Valve Position Indication Is Maintained While Isolating Power from Solenoids
ML19345E220
Person / Time
Site: Calvert Cliffs Constellation icon.png
Issue date: 12/18/1980
From: Lundvall A
BALTIMORE GAS & ELECTRIC CO.
To: Clark R
Office of Nuclear Reactor Regulation
References
NUDOCS 8012230481
Download: ML19345E220 (1)


Text

BALTIMORE GAS AN D ELECTRIC COMPANY P. O. B O X 1475 B A LTI M O R E. M A RYLAN D 21203 December 18, 1980 ARTHUR E. LU N OV A LL. J R.

v.c c *=< s.c ce s --s Office of ?!uclear Peactor Eegulation U. S. : uclear Regulatory Cc= mission

'Jashington, D. C.

20555 Attn:

Mr. R. A. Clark, Chief Operating Feactors Eranch #3 Division of Licensing

Subject:

Calvert Cliffs !!uclear Power Plant Unit :!o.1, Docket IIo. 50-317 Feactor Coolant System Vents Peferences:

(a) Letter from R. A. Clark to A. E. Lundvall, Jr.

dated December 12, 1980.

(b) Telephone conversation of 12/17/80 between A. R. Thornton, BG&E and E. L. Conner,!iRC.

Gentlemen:

This letter is to inform you of our intentions for control of the Peactor Coolant Vent System (RCVS) during operation of Unit 1 and prior to review and approval of operating procedures for the RCVS.

'4e vill deenergize the valve operating solenoids by opening and tagging a pair of sliding links in the control room.

This method of control is superior to those previously proposed, because while isolating power from the solenoids, continuous valve position indication for the RCVS is maintained. The system can then ba made connletely operational, when authorized, by closing the links while observing proper procedures.

'"his method of operation meets the intent of paragraph 2.8 of Reference (a), and has received verbal concurrence from Mr. E. L. Conner of ?!EC (Reference (b)).

Very truly. 'rs,

2 'JJ n,

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cc:

J. A. Eiddison, Esquire qb G. F. Trowbridee, Esquire 7 I Mr. E. L. Conner, Jr. - ?iRC g

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