ML19242A653
| ML19242A653 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 07/27/1979 |
| From: | Kelley R GEORGIA POWER CO. |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 7908030316 | |
| Download: ML19242A653 (4) | |
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l"1,.A July 27, 1979 N N,. 1 r..
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.n Director of Nuclear Reactor l'.a t i on U. S. Nuclear Regulat ory Cor:caission Wa sh inp.t on, D.
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20555 NRC DOCKET 50-366 OPERATING LICENSE NPF-5 EDUIN 1. HATCH NUCLEAR PLANT UNIT -
PROPOSED CHANGE TO TECHNICAL SPECIFICATIONS Centlemen:
Pursuant to 10 CFR 50.90 as required by 30 CFR 50.59(c)(1), Georgia ompany hereby proposes an amendment to the Plant Hatch Unit 2 Tech-Power r nical Specifications (Appendix A to the Operating License).
The propmed change would ic, rise the ACTION statement of Technical Specification 3.6.4.1 inoperable torus by changing UOT SHUTDOWN to COLD SIIUTDOUN.
Mai.!" nance on to dryuell vacunn breakers cannot safely be perf orru d in tht HOT SHUTCOU:'
condition.
The propos(d change to COLD SHUTDOUN wouhi provide for increaned personnot safety.
1his increased personnel safety has been jadged by Georgia Power Conpany t o justi fy the poteut ially longer period of time the cpet if f.ca-tion vould alloa the unit to operate with up to three inoperable but known to be closed torus t o d rywell vacuum breakers.
Thc proposed anendment has not change 1 the probabilit y of occ urrence or the consequences of an accident or ualfunction of equipment inportant to safety which han been previously analyzed becanne no change in the nude of operation is effected as a result of the propmal.
Similarly, the possibili+y of an accident or malfunction of a different type does not result fron this change becauno no equipernt design e operation is altered.
Margins of safety are not reduced from thos Jorded by the existlur Specification Lecause operating limits have not een changed.
The Plant Revieu Roard and the Safety Review board have reviewed and approved the proposed amendnent, and in consideration of the ebove have deternired that th-proposed anendent doen not coantitute an unreviewed safety qacm ion.
Yours very ti.:ly, R. J.
Eelly UDD/MCD/nh Suorn to andfaubscrlhed before ne th!y 27t h day ef 'uly, 1979.
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Notary Public
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fictary Public, Georda, te at targe t~j xc:
Rut i e A. Th o.w',
PAf ccemission Enrircs Ju'y 2a.19m
,7gOSO3 W b Ceorge F.
1,owbridge, Esquire
ATTACll'U:NI ]
NRC DOCKET 50-366 OPl: RATING LICENSE NIT-5 EDUIN 1. IIATCil NUCLEAR PLA"T UNTT 2 PROPOSED CliANCES TO TECTINICAL SPEC 1FICATIONS Pursuant to 30 CFR 170.12 (c), Georgia Power Company has (valuated tiie attached proposed amendnent to Operating License UPF-5 and have determined that; a)
The proposed ameadaent does not require the evaluat ion of a new Safety Analysis Report or reurite of the facility license; b)
The proposeu a:i.endmeat does not contain several comple:s issues, does not involve ACHS review, or does not require an environm ntal impact statement; c)
The proposed amendment does not involve a conplex issue, an environ--
mental issue or nore than one safety issue; d)
The proponed amendment does involve a sing 1.
issue naraly, changing the ACTION statement in Section 3.6.4.1 of :hc Unit 2 Technical Specifications to requi e surveillance uher the plant attains the ner.t Cold Shutdoun instead of the next ilot '.hutdown when three suppression chamber - drywell vacuuu breabrs are inoperable; and c)
The proposed anendment is therefore a Class III amendment.
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ATTAC11:1ENT z NRC DOCKET 50-366 OPEltAT11:G LICENSE Ni*-5 EDW11: 1. IIATCll I;UCLEAR PLANT UNIT 2 PR0;)0 SED CIIANGE TO TEClH;ICAL SPECTFICATIO::S The proposed change to the Te,hnical Specif ications w>uld be incorporated as follows:
P 1.3210Ve PD3e JMert1 yg 3/4 6-33 3/4 6-33 s
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CONTAINMENT SYSTEMS 3/4.6.4 VACUUM RELIEF SUPPRESSION CHAMBER - DRYWELL VACUUM BREAKI RS LIMITING CONDITION FOR OPERAlIO" 3.6.4.1 All suppression chaber - drywell vacuum breakers shall be OPERABLE and in the closed position with:
a.
A total leakage between the suppression cher.ber and the drywell of less than the equivalent leakage through a 1 inch diameter orifice at a differential pressure of 1 psi,
~b.
The redundant position indicators OPERABLE, and c.
An opening set point of < 0.5 psid.
APPLI C ABI LI_TY_:
CONDITIONS 1, 2 and 3.
ACTION:
a.
Uith up to three suppression chamber - drywell vacuum breakers inoperable for or ning but knoun to be in the closed position, thc pi isions of Specification 3.0.4 are not applicable and operatit ~ y continue until the next COLD SHUT 00MH provided
. nce require;nents of Speci fication 4.6.4.1.a are the surve perforned on the OPERABLE vacuum breukers within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> and at least once per 15 days thereaf ter until the inoperable vacuum oreakers are restored to OPERA 3LE status.
b.
Uith one suppression chamber - dryuell vacuum breaker in the oper position, as indicated by the position indicating system, the provisions of Specification 3.0.4 are not applicable and operation may continue provided the surveillance requircments of Specification 4.6.4.1.a are perform d on the OPERABLE vacuum breakers and the surveillc..ce requirements of Spec-ification 4.6.4.1.b are performed within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> and at least once per 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> thereaf ter until the inoperable vacu-breaker is restored to the closed position, c.
Uith om position indicator of any suppression cha:cher - dry' gli vacuum breaker inoperable, the provisions of Specification 3.0.4 are not applicable and operatica may continue provided the surveillance requirements of Specifica tion 4.6.4.1.h are perfore d within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> and at least once per 15 days there-af ter until the inoperable position indicator is returned to OPERA 3LE status.
Otherwise, be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHufDOWN within the f ollowing 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
HATCH-U4IT 2 3/4 6-33