ML20052F743
| ML20052F743 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 04/30/1982 |
| From: | Clark R Office of Nuclear Reactor Regulation |
| To: | Cavanaugh W ARKANSAS POWER & LIGHT CO. |
| References | |
| NUDOCS 8205130551 | |
| Download: ML20052F743 (3) | |
Text
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0W DISTRIBUTION Docket File Local PDR Docket No. 50-368 ORB Rdg D.Eisenhut OELD OI&E (1)
Mr. William Cavanaugh III RAClark Senior Vice President PKreutzer 4 Energy Supply Tech Branch Arkansas Power & Light Company RFerguson P. O. Box 551 NSIC Little Rock, Arkansas 72203 ACRS (10)
Gray File
Dear Mr. Cavanaugh:
RMartin
SUBJECT:
SEISMIC INSTRUMENTATION SURVEILLANCE REQUIREMENTS Your letter dated October 23, 1979 proposed changes to the seismic monitoring instrumentation Technical Specification surveillance requirements. The information in your letter has been examined by our contractor and we have had several discussions with your staff.
As a result we find that we require additional information as iden-tified in the enclosure to enable us to continue our review.
It will assist is in scheduling the review and responding to your proposal if you can indicate a planned date for the submittal this additional information.
The reporting and/or recordkeeping requirements of this letter affect fewer than ten respondent; therefore, OMB clearance is not required under P.L.96-511.
ggg;ge,g, Robert A. Clark, Chief Operating Reactors Branch #3 Division of Licensing cc: See next page
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Arkansas Power & Light Company cc:
Mr. John Marshall Manager, Licensing Arkansas Power & Light Company P. O. Box 551 Little Rock, Arkansas 72203 U.S. Environmental Protection Agency Mr. James P. O'Hanlon Region VI Office General Manager ATTN:
Regional Radiation Arkansas Nuclear One Representative P. O. Box 608 1201 Elm Street Russellville, Arkansas 72801 Dallas, Texas 75270 Mr. Robert B. Borsum Babcock & Wilcox Nuclear Power Generation Division Suite 220 7910 Woodmont Avenue S. L. Smith, Operations Officer Bethesda, Maryland 2 08 '4 Arkansas Nuclear Planning &
Response Program Nicholas S. Reynolds, Esq.
P. O. Box 1749 c/o DeBevoise & Liberman Russellville, Arkansas 72801 1200 Sever.teenth Street, N.W.
Washington, D. C.
20036 Arkansas Polytechnic College Russellville, Arkansas 72801 Mr. Charles B. Brinkman Manager - Washington Nuclear Operations C-E Power Systems 4853 Cordell Avenue, Suite A-1 Bethasda, Maryland 20014 i
Regional Administrator l
Nuclear Regulatory Commission, Region IV l
Office of Executive Director for Operations 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011 Mr. W. Johnson U.S. NRC P. O. Box 2090 l
Russellville, Arkansas 72801 l
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p REQUEST FOR ADDITIONAL INFORMATION ANO #2 SEISMIC INSTRUMENTATION SURVEILLANCE REQUIREMENTS Ref. 1:
AP&L letter (W. Cavanaugh, III) to NRC (R. W. Reid), dated October 23, 1979.
Ref. 2:
ANSI / ANS-2.2-1978, " Earthquake Instrumentation Criteria for Nuclear Power Plants."
Ref. 3:
Telecon, Larry Parscale and Paul Jones ( AP&L), Bob Martin (NRC),
and James Selan (LLNL), dated February 16, 1982.
1.
In a telecon dated February 16, 1982 [Ref. 3], the licensee agreed to submit additional information to support their request for a Technical Specification change on the seismic instrumentation surveillance requirements. Submit the following information:
(a) Detailed manufacturer's product data for the triaxial response-spectrum recorder and time history accelerograph (should include manufacturer's rc ommended testing / calibration guidelines).
(b) Details of the test procedures used for meeting the existing surveillance requirements and the history of maintenance, recali-bration, etc. of the above seismic instrumentation.
(c) Detailed basis for the surveillance interval change (such as safety reasons, product reliability, manufacturer's recommendations, etc.).
Discussion:
In Ref. 2, the time-history accelerograph is defined as an " active instrument" and the most important for measuring vibratory motion.
Since active instrumentation is dependent upon power sources and active components for its performance, periodic channel checks are required as defined in Section 8.3 and the test data requirements of Section 8.4.
The recommended frequency of maintenance for periosic channel checks (see Table 1, Ref. 2) is on a monthly basis for active instruments.
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