ML20214F100
| ML20214F100 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 11/12/1986 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20214F058 | List: |
| References | |
| NUDOCS 8611250192 | |
| Download: ML20214F100 (3) | |
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UNITED STATES -
.j NUCLEAR REGULATORY COMMISSION
- % I;g/ e WASHINGTON. O c. 20555 s
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cAFFTv rVALUATION Ry 'PE oreICE OF NUCLEAD prt.rTOD DEGULATION PEL/TFS To AMENnvE"T NOS. 88 AND 74 TO FAC.'11TY OPEPATINC L TCENSF N05. NDF 4 AHO Nor 7 VIDGINT A ELECTDIC AM POWED COMDANY OLn nov7N?DP' ELECTRIC C00cERATTVE NODTH ANNA POWEP STATION, UNITS P!O.1 AND r:0, 9 DON'ET f?qs. Sn ??P AND 50-339 INTDOCUCTION Rv letter dated dure 30, 1986, the Virginir Flectric and Powar Comparv (the licenseei subrdtted proposed Technical Specification ITS) chances for the North Anna Dower Station, Units 1 and 2 (NA-1&?). The pronosed chances would increase the frecisency of surveillence for the # ire DumD diesal encira for No-1 and delete a portion of tha surveillance reouirement for the fire pump diesel starting ?4-volt hattery bank and charaar for NA-1&2. The proposed charcas would also make minor sentence structure changes for N/-1 to make then identical to NA-?.
We have reviewed the proposed chances and #ind them to be acceptable as discussed below.
DISCUSSION The NA-? TS for the fire pump diesel engine presentiv recuires demonstrated operability at least once per 31 days by verifying that:
"The diesel starts from ambient conditions and operates for at least
?O minutes on recirculation flow."
The presert NA-1 TS requires at least once per 18 months, during shutdovn.
the following:
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" Verifying the diasel starts # rom anbiert conditinr.s on the autostart signal and operates 'or greater than or ecual to ?O minutes while 1er.dod with the fire pumo."
The proposed chanae would modifv the reouf rement for Unit 1 to make it read I
like the Unit ? recuirerent. Upon a telephone inquiry, the licensea stated that there was no intent, h" the wneding change, to change the procedures 'or starting or running the diesel engine.
make the NA-1 specificatirn the same as that for NA 9The inten+ n' the change was maralv tr that the proposed change to maka The licensee states both units is reasonable since thathe surveillance requiraments consistent fer engine is part o' a shared system.
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tdditionally, tha pennnsed change re#1ac+s tbc other facilities and appropriately applv to NA-1.reouirerents of the f We #ine the licensae's desire to make the NA-1 TS the same as that 'cr NA-? to be reasonable.
those o' the Westinatcuse Standard Technical SpecificationsWe aise note increased *requency o' the surveillanca testing o#
Further, the increase the probability that it will be available upon demand.the diesel engine shou'd reasons, we find the proposed change to be acceptable.
For these Another chance proposed hv the licensee is with racect to the 24-volt hattere bard.
The present NA-142 TS require that the # ire purc diesel starting 24-volt battery bark and charcer he demonstrated operable by ver'fyinc, among other verifications, at least once per 18 months, that:
"The batteries, cell plates end battery racks show no visual indicatinr o' chysical damage or abnormal deterioration."
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.The licensee proposes to remove the words " cell plates" from the above.
.iustification given is that the battery case is opaoue and the The I
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removing the battery caps.
Replacement o# the present betteries with batteries k
allowing additional visual Further, other surveillance reonirements are more indicativinsoection of the cell of the battery to perfore its function.
e of the ability (1) the electrolyte level is above the plates (once per 7 daysiThese requi that:
(2) the.overall battery voltace is areater than or equal to 74 volts (once per 7 days), (3) the specific gravity is aperceriate for continued service of the battery Ionce oer 9' days), (4) the battery-to-hatterv and terminal connections are clean, tight corrosion material (once per,18 months), and (Sifree of corrosion and coated with anti-the batteries and battery racks show no visual indication of physical damage or abnormal deterioration fence per 18 morthsi, in addition, the batteries are functionally tested approxi by the surveillance requirement to start up the fire punp diesel engine at nately once a conth least orce every 31 days.
EVALUATION Considering the list of battery surveillance requirements that are more call plates under the cell caps, we cannet conclude that the a Technical Specification' item recuiring such visuel inspection of the cell plates should be mandatorv.
would be of negligib!e marginal benefit, and there' ore we find the licenc proposed change to be acceptable.
ENV! DON" ENTAL CONSTDEDATION These amendments involve a change in the installation or use of a facilit component located within tha y
restricted area as defined in 10 CFR Part ?n or
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a surveillance recu i rer*an t. The sta## ba", determired that tha amendwents i-+r've rn sionificar.t inciftce in the amc.unts, and ne siari#icant chano&
th* types, of any e"luents that may be released n" site, and that there is rr-it siorificant increase in individual or cumolativa eccupational radiatinn exDasure.
The Comnission has previously published a proposed fir. ding that these amenderrts involve no significart hazards consideration and there has beer no public conrent on such firding.
Accordingly, thece amendments neet the eligibilit.s criteria for categorical e>rlusion set forth in 10 CrP 651.??lcI(91. Pursuart to 10 CFC 551.??(bi, no environrental need be prepared ir. connectior. with the issuance o' these amendments.imea CONCLUSION We have concludad, based cm the consideretions discussed above, that (1) is reasonable assurance that the health and safety of the public will not bc the-r endancered by operation in the proposed manrer, and (?) such activities wi
be conducted in romp'f ance with the Commistion's regulations. and the issuar:ct of tFe amendments will not be irimical to the common defense ard security or to the health and safety of the oublic.
Date: November 12, 1985 Prircical Contributor:
A. Toalston i
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