ML20062G365

Forwards Revised Version of Model Tech Specs Re Electric Power Monitoring of Reactor Protection Sys Previously Submitted in

ML20062G365
Person / Time
Site:	Browns Ferry
Issue date:	07/28/1982
From:	Vassallo D Office of Nuclear Reactor Regulation
To:	Parris H TENNESSEE VALLEY AUTHORITY
References
NUDOCS 8208120363
Download: ML20062G365 (3)

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JUL 2 81982 Docket Nos. 50-259 50-260 50-296 Mr. Hugh G. Parris Manager of Power Tennessee Valley Authority 500 A Chestnut Street, Tower II Chattanooga, Tennessee 37401

SUBJECT:

REACTOR PROTECTION SYSTEM (RPS) POWER MONITORING SYSTEM DESIGN MODIFICATION Re: Browns Ferry Nuclear Plant, Units 1, 2 & 3 In our October 30, 1981 letter on this subject model Technical Specifications for electric power monitoring of the RPS were included for your considera-tion. The enclosure to this letter contains a revised version of the model Technical Specifications which is less restrictive in some of the require-ments than the earlier version.

Sincerely, Originalsigned by D. B.Vassallo Domenic B. Vassallo, Chief l

l Operating Reactors Branch #2 l

Division of Licensing l

Enclosure:

As stated cc w/ enclosure:

See next page DISTRIBUTION: Docket File 18E-l NRC PDR NSIC LPDR i

j D. Eisenhut ORB #2 Rdg Gray 0 ELD ACRS-10 R. Clark S. Norris l

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7 Mr. Hugh G. Parris CC:

H. S. Sanger, Jr., Esquire General Counsel Tennessee Valley Authority 400 Commerce Avenue E 118 33 C Knoxville, Tennessee 37902 Mr. Ron Rogers Tennessee Valley Authority 400 Chestnut Street, Tower II Chattanooga, Tennessee 37401

'Mr. H. N. Culver 249A HBD 400 Commerce Avenue Tennessee Valley Authority Knoxville, Tennessee 37902 Resident Inspector U. S. Nuclear Requlatory Commission Route 2, Box 311 Athens, Alabama 35611 Athens Public Library South and Forrest Athens, Alabama 35611 Mr. John F. Cox Tennessee Valley Authority W9-D 207C l

400 Comerce Avenue Knoxville, Tennessee 37902 George Jones Tennessee Valley Authority P. O. Box 2000 Decatur, Alabama 35602 L

j James P. O'Reilly Regional Administrator, Region II i

U.S. Nuclear Regulatory Commission 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303 l

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ELECTRICAL POWER SYSTEMS REACTOR PROTECTION SYSTEM ELECTRIC POWER MONITORING LIMITING CONDITION FOR OPERATION 3.8.4.4 Two RPS electric power monitoring channels'for each inservice RPS MG set or alternate source shall be OPERABLE.

APPLICABILITY:

At all times.

ACTION:

With one RPS electric power monitoring channel for an' inservice. '..'

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RPS MG set or alternate power supply inoperable, restore the inoperable channel to OPERABLE status within 72. hours or remo've the associated RP5 MG set or altern, ate power supply from service.

With both RPS electric power monit'orin's channels for an inservice

b. i RPS;MG set or alternate power supply inoperable, restore at least. '

one to OPERABLE status within 30 minutes or remove the associated

,. RPS MG set or alternate power supply from service.

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SURVEILLANCE REQUIREMENTS The.above specified RPS power monitoring system instrumentation'

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,.y At least once per 6 months by, performance of a CHANNEL FUNCTIONAL a.

TEST, and At least once per 18 months by demonstrating the OPERABILITY of b.

over-voltage, under-voltage and under-frequency protective instrumentation by performance of a CHANNEL CALIBRATION including.

simulated automatic actuatio.n of the protective relays, tripping logic and output circuit-breakers.and verifying the following setpoints:

1.

Over-voltage g (132) VAC, 2;

Under-voltage g (108) VAC, and 3.

Under-frequency > (57) Hz.

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