ML20070M009

Proposed Tech Specs 3.0.3 & 3.0.5 Re Time Interval for Reaching & Achieving Hot Standby

ML20070M009
Person / Time
Site:	Davis Besse
Issue date:	03/18/1991
From:	CENTERIOR ENERGY
To:
Shared Package
ML20070M004	List: ML20070M001 ML20070M005 ML20070M009
References
NUDOCS 9103210009
Download: ML20070M009 (4)

Text

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Docket Nu bar 50-346 Lic6nsa Nu ber HPF-3 S;rici Nu bar 1848 Attachment Page 5 3/4 LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE REQUIREMENTS i 3/4.0 APPLICABILITT '

1 i LIMITING CONDITION FOR OPERATION l

3.0.1 Limiting Conditions for Operation and ACTION requirements shall be applicable curing the OPERATIONAL MODES or other conditions specified for each specification.

3.0.2 Adherence to the requirements of the Limiting Condition for Operation and/or associated ACTICN vithin the specified time interval shall constitute ccapliance with the specification. In the event the Limiting Condition for Operation is restored prior to expiration of the specified time interval, coepletion of the ACTION statement is not required.

3.0.3 Vhen a Limiting Condition for Operation is not met, except as provided in the associated ACTION requirements, action shall be initiated within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> to place the unit in a M0DE in which the Specifica1[on oes not apply y placing it, as applicable, ins

1. At least BOT STANDBT vithinN6 hours [9Aeney, h

. 2. At least 80T SHUTD0VN vithin the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, and

3. At least COLD SHUTDOVN within the subsequent 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

Vhere corrective measures are completed that permit operation under the ACTION caqtires nts, the ACTION say be taken in accordance with the specified time limits as measured from the time of failure to meet the Limiting condition for Operation. Exceptions to these requirements are stated in the individual Specifications.

3.0.4 Entry into an OPERATIONAL MODE or other specified applicability condition shall not be made unless the conditions of the Limiting Condition for Operation are met without reliance on provisions contained in the ACTION statements unless otherwise excepted. This provision shall not prevent passage through OPERATIONAL MODES as required to comply vith ACTION statements.

3.0.5 vhan a systen, subsystaa, train, component or device is determined to be inoperabis solely because its emergency power source is inoperable, or solely because its normal power source is inoperable, it may be considered OPERABLE for the purpose of satisfying the requirements of its applicable Limiting Condition for Operation, provided: (1) its corresponding normal or emergency power source is OPERABLE and (2) all of its redundant systes(s), subsystea(s), train (s),

component (s) and device (s) are OPERABLE, or likewise satisfy the requirements of this specification. Unlesa both conditions (1) and (2) are satisfied, vithin 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> action shall be initiated to place the unit in a MODE in which the applicable Limiting Condition for Operation does not apply by placing it as applicable ins

1. At least BOT STANDBT vithin/6 hours,@c gexg

2. At least B0T SHUTDOVN vithin the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, and

3. At least COLD SHUTDOVN vithin the subasquent 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

This Specification is not applicable in MODES 5 or 6.

DAVIS-BESSE, UNIT 1 3/4 0-1 l apdment No. W, 7103210009 PDR 910310 P ADOCK 05000346 PDR

Docket Number 50-346 ' ~~

c Licens] Nu ber NPF-3 * * - - - *-

Se.ric1 Nurber 1848

.Att:chsent Page 6 #4 . 0 apPt.f CAB!t.!TY BASES i lance applicaole to each of the Limiting Conattions for Operat t

Requirements within Section 3/4.

3.0.1 tion in terms of defined OPERATIONAL N00ES or other and is provided to delineate specifically when each specification is applicable.

3.0.2 This specification defines those conditions necessary to constitute compliance with the terms of an individual Limiting Condition for Operation and associated ACTION requirement.

3.0.3 This specifit.ation daliaastas the ACT:oM to be takes for circus.-

stansas ses directly provided for in the ACTION statements and whose occurranes wesid vialata che intant of the specitisatiaa. For samepla, Specifiaation 3.3.1 requires nach taastor Caelaat systen care floading y s whh ene. m taak is to be oFI3ARLE taoparable.

Under thathe and provides tarms amplicit ACTION requirements of the spesificattaa 3.0.3e if more thaa if osa t 7

,o_na,_pak is inoperahla,f unit 1: WU $

a "r:d-sa 4e La at lasafihiT STAND within9 hourppnad in at lasst rot SIUTDouN within the follawing i hours. $[fm As a further unemple, specifisatina 3.6.2.1 requires twe Com'=Sa===t Spray Syrtssa to be oFEIABLE and providas explicit ACTION requirements if ona pN spray system is taeparahlalFTadar the tarus of Specification 3.0.3, if (L,tu me' itheocyk) both n_ af tha requirad Costaisonst sprmy 3yatans ara insparable.+che unit % mW

~

d :: h ta acTaaaTBoT 37.ANDIT~~wftE@6 hours, in at lanat rot 6C

$YmoVV within 24the fo11mving 6 honra, and La at least CotD SEUTDoWN in the fo11susag hours.

It is assumed that the unit is broulht to the )W[ff required out HoDE vithin tha appropriata the raeutrad ACTION statsmaat.tians by promptly initiating and carrytag 3.0.4 This specification provides that entry into an OPERATIONAL MODE or other specified applicability condition must be made with (a) the l full compiamaat of required systems, ecuipment or comoonents OPERABLE and (b) all other parameters as specified in the Limiting Conditions for Operation being met without regard for allowable deviations and out of servtce provisions contained in the ACTION statements.

l The intent of this provision is to insure that facility operation 15 not initiated with either required equipment or systems inoperable or other specified limits being exceeded.

Exceptions to this provision have been provided for a limited number l

of specifications plant safety. when startup with inoperable equipment would not affect These exceptions are stated in the ACTION statements of the appropriate specifications.

DAVIS-BESSE, UNIT 1 B 3/4 0.) Amendment No. 71

Dockot Hu ber 50 346 tite:nso Hu:ber HIT-3 Serial Hu bar 1848 Attachment Page 7 "em' tatil N:0E0N OLY

2. 0. 5 satisfisc to This permit toecification operation tocolineates centinue, consistent waat accitional conditions witA the ACTICH must be stateJnenu for power sourcas, when a normal or emergency power source is not CPEMBLI ,

its normal or emergency power source is inocerable and a train, component or oevice in anotner civision it inoperable for another reason.

The previsions of this specification permit the ACTION sutaments associated with taoivicual systaas, suosystans, trains, casoonents, or cevices to b consistant with the ACTION statamenu of tne associatec electricale power sourca.

statement associatec vithIt allows operation to be governea by tne time limits of the ACT!0N or emervency power sourca,the Limiting concition for Operation for the nor=al not the incivicual ACTION sutaments for each anie solely because of the inoperatrility of iu normal or emergenc sourca.

For szaarsle, generatet $cecification be CFERA8LE. 3.8.1.1 recuirts in part that two teergency ciesel ~

service time wnen one emergency ciesel generster is not OPERABLE.The AC If the 3.0.5, all systemscefinition suerystans of CPERA8LE were applied without consideration of $0ccificatio inocertole emergenc,y power sour,ce would also ee incoerable. trains, connenents anc cev This would cicute invoting for Conottions thecoeration.

toolicable ACTION sutemenu for each of the acolicable Limiting however, the provisions of 30ecification 3.0.5

@serait ?M r: the time limtts for continvec coerstion to be consistent with the toe etnst soecifiec concitions are satisfien.Tracene for tna 'ttocerable 6!iriffi1M cffTTU

, crevioso inst the corrtsooncing normal power sour In this casa, this woulo mean systems, sucsystems, trains, comoonsnu,ce must De OPERABLI, anc all rtouncant ano cavices must ce OPERA 8L1, or

esign fur tion anc nave at least one norsal or one esergency cove OPERABL!).

tnis scact fication.If they are not satisfisc, action is recuirec in accorcance witA as 4 'further txample, $oecification 3.8.1.1 reouires in part that two physicall incemencent t'. ass !! cistrioution circuits systes be OPERABLE. between tne offsite transmission networt anc the ensite The ACTION statament provices a 2a.ncur out of service time wnen both roovirec offsite circuits a 3.0.5. all systems, suonystans, trains, commonants anc cevices sucoliac by the inoceracle incoerto)e. normal power scurces, both of tne offsita circuita, would also on eacn of the acclicante tCDs,This woule cicute invoaing the acolicable ACTION sutamenta for cermit tne staa limits for continued coeratton to be consistant with thehowever, the o ACTION Itatement for tne incoerable normal cover, scurets previota theinstead DAV!$.BEi3E, UNIT 1 8 3/A 0.la Amendment No. M

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Docket Nu:ber $0-346

, Lic nse Nu ber NPF-3 Serial Nu ber 1848 Attachment Page 8 u,uusnm l

FORMA ~0N ON.Y BASES otner specified conditions are satisfied. In this case. this would mean that for one division the emergency power source must be OPERA 8LE (as must be the components supplied by the emergency power source) and all renunaant systas, subsystems, trains, components and devices in the other division must be OPERABLE. or likewise satisfy Specification 3.0.5 (i.e., be capable of per-forming their design functions and have an amergency power source OPERABLE).

In other words, both emergency power sources must be OPERA 8LE and all reoundant systems, subsystems. trains. components and devices in both divisions }

must also be OPERABLE If these conettions are not satisfied, action is recutred in accordaner. with this. specification.

In MODES $ or 6. Spectficatton 3.0.5 is not applicable, ana thus the individual ACTION statments for eacn applicable Limiting Conettien for Operation in these MODES must be adhered to.

1 l

l.

DAVIS.BESSE. UNIT 1 B 3/4 0 1b Amenament No. 77.135 l