ML20057E485
| ML20057E485 | |
| Person / Time | |
|---|---|
| Issue date: | 09/21/1993 |
| From: | Berlinger C Office of Nuclear Reactor Regulation |
| To: | Fletcher R C&D CHARTER POWER SYSTEMS, INC. (FORMERLY C&D POWER |
| References | |
| NUDOCS 9310120202 | |
| Download: ML20057E485 (1) | |
Text
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Mr. Raymond R. Fletcher Director of Sales National Accounts C&D Charter Power Systems 3043 Walton Road SEP 211993 Plymouth Meeting, PA 19462
Dear Mr. Fletcher:
Your letter to Mr. James M. Taylor, dated September 3,1993, informing the Nuclear Regulatory Commission (NRC) about the use of reserve battery for load leveling, peak shaving and spinning reserve, has been referred to me.
I thank you for your letter and the information contained in it.
The NRC regulations require the use of battery power in nuclear power plants only for the safety systems, such as vital instrumentation, control power, emergency lighting and motive power. The station batteries are sized to carry their expected load for a short duration, such as 2 or 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />, without any ac power available.
Emergency diesel generators (EDGs) are used in nuclear power plants to provide a.c. power to the safety systems in case of loss of the offsite (grid) power. The EDGs are rapid start and have adequate capacity to supply a.c. power for the safety systems including charging of the batteries for seven days or more, as may be needed.
The battery applications discussed in your letter are outside the purview of the NRC regulations.
The NRC does not routinely engage in reviewing and approving the use of products by the nuclear industry unless.a utility proposes to use a product in conjunction with its application for a construction permit or an operating license. Further, the product application would have to have a direct bearing on nuclear power plant safety, hence would be required to comply with the Commission's rules and regulations.
It may be more beneficial for you to promote your battery application with the individual utilities or utility owners group, or at an appropriate industry t
symposium.
Sincerely, Original Sigr.ed By 1
Carl H. Berhnger j
9310120202 930921 Carl H. Berlinger, Chief PDR ORG NRRB Electrical Engineering Branch ppg Division of Engineering Office of Nuclear Reactor Regulation j
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