ML20154K153
| ML20154K153 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 03/05/1986 |
| From: | Gridley R TENNESSEE VALLEY AUTHORITY |
| To: | Youngblood B Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8603110209 | |
| Download: ML20154K153 (3) | |
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TENNESSEE VALLEY AUTHORITY CHATTANOOGA. TENNESSEE 37401 SN 157B Lookout Place March 5, 1986 Director of Nuclear Reactor Regulation Attention:
Mr. B. Youngblood, Project Director PWR Project Directorate No. 4 Division of Pressurized Water Reactors (PWR)
Licensing A U.S. Nuclear Regulatory Commission Washington, D.C.
20555
Dear Mr. Youngblood:
In the Matter of
)
Docket Nou. 50-32/
Tennessee Valley Authority
)
50-328 By the October 23, 1979 letter f ro:a L. M. Mills to L. S.
Rubenstein of HRC, we provided Revision 4 to NRC's Auxiliary Systems Branch (ASB), fire protection questions for the Sequoyah Nuclear Plant (SQN).
Hovision 4 included a response to NRC's position regarding emergency lighting.
Enclosed is a reviuion to our previous commitment regarding emergency lighting and establishes a commitment to satisfy the requirements of Appendix R to 10 CFR 50, as well as the requirements of Appendix A to HMC's Branch Technical Position (BTP) 9.5-1 as they relate to emergency lighting.
If you have any questions regarding this subjecting, please get in touch with Jerry Wilis at FTS 858--2683.
Very truly yours, TENNESSEE V. LEY AUTHORITY R. Gellley Manager of Iteensing d subscri efore me Sworn jt a
this Q__
_,_ day of
_1986 Notery Public _
My Commission Expires Enclosure 1
96031'10209 6 7
An Equal Opportunity Employer
.' Director of Nuclear Reactor Regulation March 5, 1966 cc (Enclosure):
U.S. Nuclear Re,ulatory Commission Region 11 Attn:
Dr. J. Nelson Grace, Regional Administrator 101 Marietta Street, ITW, Suite 2900 Atlanta, Georgia 30323 Mr. Carl Stable Sequoyah Project Manager U.S. Nuclear Regulatory Commission 7920 Norfolk Avenue Bethesda, Maryland 20814 r
ENCLOSURE REVISION OF COMMITMENT TO SAFETY REQUIREMENTS FOR EMERGENCY LIGHTING SEQUOYAH NUCLEAR PLANT DOCKET HOS. 50-327, -328 By the October 23, 1979 letter to NRC, commitments were made regarding emergency lighting which we believe are now overly conservative when compared to current NRC requirements in Appendix R to 10'CFR $0.
Our current commitment requires fixed self-contained lighting, consisting of fluorescent or scaled beam units with an Individual eight-hour minimum battery power supply, be provided for all areas that must be manned for safe cold shutdown and for access and egress routes to all fire areas.
10 CFR 50, Appendix R, Section J. " Emergency Lighting" states, " Emergency lighting units with at least an 8-hour battery power supply shall be provided in all areas needed for operation of safe shutdown equipment and in access and egress routes thereto." Therefore, we are revising our commitment for emergency lighting to read as follows: " Emergency lighting units with at least an 8-hour battery power supply shall be provided in all areas needed for operaion of safe shutdown equipment and in access and egress routos thereto as required by 10 CFR 50, Appendix R." Changing our cocaltment to the Appendix R requirements will provide significant long-and short-term cosL savings while still meeting NRC requirements.
This position was discussed with a NRC Region Il representatives during an October L983 in*;pection at Sequoyah who indicated that this was an acceptable approach.
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