ML17353A353

Proposed Tech Specs Re Edgs,Change to Testing Requirements, Per GLs 93-05 & 94-01

ML17353A353
Person / Time
Site:	Turkey Point
Issue date:	09/11/1995
From:	FLORIDA POWER & LIGHT CO.
To:
Shared Package
ML17353A352	List: L-95-207, Application for Amends to Licenses DPR-31 & DPR-41,modifying TS in Accordance w/Line-Item 10.1 from GL 93-05, Line-Item TS Improvements to Reduce Surveillance Requirements for Testing During Power Operation & Guidance in GL 94-01 ML17353A353
References
GL-93-05, GL-93-5, GL-94-01, GL-94-1, NUDOCS 9509130203
Download: ML17353A353 (11)

Text

L-95-207 Attachment 3

ATTACHMENT 3 PROPOSED LICENSE AMENDMENT:

RSERKtGENCY DIESEL GR2tERATORSg CHANGE TO TESTING REQUIRZ2CEKTS PER GL 93-05 AND 94-01 3/4 8-2 3/4 8-3 3/4 8-5 3/4 8-9 3/4 8-10 3/4 8-12 s 3/4 8-3 9509130203 950911 PDR ADOCK 05000250 PDR

t

ELECTRICAL POWER SY MS LDfITING CONDITION FOR OPERATION Continued APPLICABILITY:

MODES 1, 2, 3, and 4.

ACTION:

With one of two startup transformers or an associated circuit inoperable, demonstrate the OPERABILITY of the other startup trans-former and its associated circuits by performing Surveillance Requirement 4.8. 1. 1.1.a within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter.

Notify the NRC within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of declaring the trans-former inoperable.

b.

If the inoperable startup transformer is the associated startup transformer and became inoperable while the unit is in MODE 1, reduce THERMAL POWER to < 30K RATED THERMAL POWER within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, or restore the inoperable startup transformer and associated circuits to OPERABLE status within the next 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN'within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

If THERMAL POWER is reduced to < 30K RATED THERMAL POWER within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or if the inoperable startup transformer is associated with the opposite unit restore the startup transformer and its associated circuits to OPERABLE status within 30 days of the loss of OPERABILITY, or be in at least HOT STANDBY 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 SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

If the inoperable startup transformer is the associated startup transformer and became inoperable while the unit was in MODE 2, 3; or 4 restore the startup transformer and its asso-ciated circuits to OPERABLE status within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or be in at least HOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

This ACTION applies to both units simultaneously.

With one of the required diesel generators inoperable, demonstrate the OPERABILITY of the above required startup transformers and their associated circuits by performing Surveillance Requirement 4.8. 1.1. l.a within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter.

+f-hhe gP5 ~'.

Restore the inoperable diesel generator to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLO SHUTDObS within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

With one startup transformer and one of the. required diesel generators inoperable, demonstrate the OPERABILITY of the remaining A. C. sources by performing Surveillance Requirement 4.8.l.l.l.a on the remaining TURKEY POINT - UNITS 3 & 4 3/4 '8"2 AMEHDMEHT HOS.l 38 AND 133

ELECTRICAL POWER SYS S

LIMITING CONDITION FOR OPERATION Continued ACTION Continued T vsse~~

d.

e.

startup transformer and associated circuits within one hour and at least once er 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter.

$8'M pl mamtenance-~e ~g-5

'U~

", unless the diesel generators are already operating; restore one of the inoperable sources to OPERABLE status in accordance with Action Statements a and b, as appropriate.

'otify the NRC within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> of declaring both a start-, up trans-7ormer and diesel generator inoperable.

Restore the other A.C. power source (startup transformer or diesel generator) to OPERABLE status in accordance with.the provisions of Section 3.8. l. 1 Action Statement a or b, as appropriate, with the time requirement of that Action

,Statement based on the time of initial loss of the remaining inoperable A.C. power source.

With one diesel generator inoperable, in addition to ACTION b. or c.

above, verify that:

l.

All required systems, subsystems,

trains, components, and devices (except safety injection pumps) that depend on the remaining required OPERABLE diesel generators as a source of emergency power are also OPERABLE.

If this condition is not satisfied within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />, be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

2.

At least two Safety Injection pumps are OPERABLE and capable of being powered from their associated OPERABLE diesel generators.

If this condition is not satisfied within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />, be in at least HOT STANDBY 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 HOT SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

This ACTION applies to both units simultaneously.

With two of the above required startup transformers or their associ-ated circuits inoperable notify the NRC within 4 hour4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> J

. restore at least one of the inoperable startup transformers to OPERABLE status within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />"" and in COLD

""Ifthe opposite unit is shutdown first, this time can be extended to 42 hours4.861111e-4 days <br />0.0117 hours <br />6.944444e-5 weeks <br />1.5981e-5 months <br />.

TURKEY POINT " UNITS 3 4 4 3/4 8"3 AMENDMENT NOS. 138AND 133

ELECTRICAL POSER SYSTEMS SURV S

nti ud 4.8. 1. 1.2 Each diesel generator shall be demonstrated OPERABLE*;

a.

~cconfance-witfMh~quen~pectfied'.aLa u.W p~

p5f.0<

1)

Verifying the fuel volume in the day and skidmounted fuel tanks D

(Unit 4-day tank only),

2)

Verifying the fuel volume in the fuel storage tank, 3)

Verifying the lubricating oil inventory in storage, 4)

Verifying the diesel starts and accelerates to reach a generator voltage and frequency of 4160 H20 volts and 60 gl.2 Hz.

Once per 184 days, these conditions shall be reached within 15 seconds after the start signal from norial conditions.

For all other starts, warmup procedures, such as idling and gradual acceleration as recoaeended by the manufacturer may be used.

The diesel generator shall be started for this test by using one of the following signals:

a)

Manual, or b)

Simulated loss-of-offsite power by itself, or c)

Simulated loss-of-offsite power in conjunction with an ESF Actuation test signal, or d)

An ESF Actuation test signal by itself.

5)

Ve~ifying the generator is synchronized, loaded~ to 2300-2500 kM (Unit 3), 2650-2850 k'N (Unit 4)~, operates at this loaded condition for at least 60 minutes and for Unit 3 until automatic transfer of fuel from the day tank to the skid mounted tank is demonstrated, and the cooling system is demonstrated OPERABLE.

6)

Verifying the diesel generator is aligned to provide standby power to the associated emergency busses.

• All diesel generator starts for the purpose of these surveillances may be proceeded by a prelube period as recoamended by the manufacturer.

~Nay include gradual loading as recoanended by the manufacturer so that the mechanical stress and wear on the diesel engine is minimized.

• ~momentary transients outside these load bands do not invalidate this test.

TURKEY POINT - UNITS 3 K 4 314 8-5 NIENDNENT NOS.~~ ~

(nr or 4.8.1.1. 3

~Re orts-58-pepor-te v*'Sr.D special Repa~pur L1 gyratory-Patio ELECTRICAL POWER SYSTEMS SURVEILLANCE RE UIREMENTS Cont) nued mdCWAonaWinformation-sec

~ho-b pl d

TURKEY POINT - UNITS 3 4 4 3/4 8-9 AMENDMENT HOW&NO~

N N OF FAILURES N

LAS 0 VALID TESTS*

0 TABLE =4. 8-1 (No-.

Nzn)

DIES GENERATOR TE SCHEDULE NU R OF FAILURES LAST 0 VALID TESTS" TEST FRE UENCY Once per 31 days nce per 7 days Criteria or determining n

er of failures d number of vali tests shall be in accorda e with Regulatory osition C.2.e o

Regulatory Guide

. 108, but.

etermined o

a per diesel gener tor basis.

- For he purpose determining the r uired test freq ncy,.the previou test failu count may reduced to zero i.

a complete dies overhaul to lik ew

-conditi is complet

, provided that th overhaul, inclu ng appropriate post-main nance opera on and testing, is ecifically app ved by the manu-facturer an if acceptab reliability has be demonstrated.

he reliabil-ity criterson hall be the uccessful'ompletio of 14 consecuti tests in a single series.

Ten of the tests shall be in cordance with t routine rveillance Requ'rements 4.8.

1.2.a.4 and 4.8.1. l..a.5; and four sts in ac rdance with the 184-day test g requirement of Su eillance Require ents 4.8.

1. 2. a.4 and 4.

l. 1.2. a. 5.

this criterion is t satisfied duri the fi t series of te s,

any alter te criterion to be ed to transvalue the fail e count to ze requires NRC proval.

"*The associat test frequenc shall be mai ained until,seven co ecutive failure free ands have been erformed and he number of failure in the last 20 valid de nds has been r duced to one.

TURKEY POINT - UNITS 3 4 4 3/4 8-.10 AMENDMENT NDS~ AND~

ELECTRICAL POWER SYSTEMS SURVEILLANCE RE UIREMENTS 4.8. l. 2 The above required A.C. electrical power sources shall be demonstrated OPERABLE by the performance of each of the requirements of Spe ificatio 4....1.,..1.1.2

(

f Oft i

....2.5)

TURKEY POINT - UNITS 3 4 4 3/4 8"12 AMENDMENT NOS.~ND ~

ELECTRICAL POWER SYST BASES Continued With one startup transformer and one of the three required EDG's inoperable, the unit with the inoperable transformer must reduce THERMAL POWER to less than or equal to 30% RATED THERMAL POWER within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, based on the loss of its associated startup transformer, whereas operation of the unit with the OPERABLE transformer is controlled by the limits for inoperability of the EDG.

The notification of a loss of startup transformer(s) to the NRC is not a 10 CFR 50.72/50.73 requirement and as such will be made for information purposes only to the NRC Operations Center via commercial lines.

With an EDG out of service, an ACTION statement and a Surveillance Requirement are provided to demonstrate the required startup transformers and their associated circuits are OPERABLE.

When one diesel generator is inoperable, there is also an additional ACTION requirement to verify that required system(s),

subsystem(s),

train(s),

component(s),

and device(s) that depend on the remaining required OPERABLE diesel generators as a source of emergency power to meet all applicable LCO's, are OPERABLE.

This requirement is intended to provide assurance that a loss-of-offsite power event will not result in a complete loss of safety function of critical systems during the period one of the diesel generators is inoperable.

This requirement allows continued operation to be governed by the time limits of the ACTION statement associated with the inoperable diesel generator.

The loss of a diesel generator does not result in the associated system(s),

subsystem(s),

train(s), component(s),

or device(s) being considered inoperable provided:

(1) its corresponding normal power source is OPERABLE: and (2) its redundant systea(s},

subsystea(s},

train(s),

component(s),

and device(s) that depend on the remaining required OPERABLE diesel generators as a 'source of emergency power to meet all applicable LCO's, are OPERABLE.

When in Modes 1, 2, 3 or 4, a unit depends on one EDG and its associated train of busses froa the opposite unit in order to satisfy the single active failure criterion for safety injection (SI) pumps and other shared equipment required during a loss-of-coolant accident with a loss-of-offsite power.

Therefore, one EDG froa the opposite unit is required to be OPERABLE along with the two EDG's associated with the applicable unit.

TURKEY POINT - UNITS 3 5 4 8 3/4 8"3 AMENDMENT NOS.l 38 AND l 33

~'

'-95-207 Attachment 3

If the diesel generator became inoperable due to any cause other than an inoperable support

system, an independently testable component, or planned maintenance or testing, demonstrate the OPERABILITY of the remaining required diesel generators by performing Surveillance Requirement 4.8.1.1.2a.4 within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, unless the absence of any potential common mode failure for the remaining diesel generators is determined.

If testing of remaining required diesel generators is required, this testing must be performed regardless of when the inoperable diesel generator is restored to OPERABILITY.

LEGFN~

If testing of remaining required diesel generators is required, this testing must be performed regardless of when the inoperable diesel generator is restored to OPERABILITY.

ZHSFN~

and if the diesel generator became inoperable due to any cause other than an inoperable support

system, an independently testable component, or planned maintenance or testing, demonstrate the OPERABILITY of the remaining required diesel generators by performing Surveillance Requirement 4.8.1.1.2a.4 within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, unless it can be confirmed that the cause of the inoperable diesel generator does not exist on the remaining required diesel generators, IHZNLJ2 At least once per 31 days on a STAGGERED TEST BASIS by:

All diesel generator inoperabilities must be investigated for common-cause failures regardless of how long the diesel generator'noperability persists.

When one diesel generator is inoperable, TS 3.8.1.1 ACTION statements b, and,c.provide.an.,allowance to.avoid.unnecessary testing of other required diesel generators.

If it can be determined that the cause of the inoperable diesel generator does not exist on the remaining required diesel genezators, then SR 4.8.1.1.2a.4 does not have to be performed.

Twenty-four (24) hours (or eight (8) hours if both a startup transformer and diesel generator are inoperable) is reasonable to confirm that the remaining required diesel generators are not affected by the same problem as the inoperable diesel generator.

If it cannot otherwise be determined that the cause of the initial inoperable diesel generator does not exist on the remaining required diesel generators, then satisfactory performance of SR 4.8.1.1.2a.4 suffices to provide assurance of continued OPERABILITY of the remaining required diesel generators.

If the cause of the initial inoperability exists on one or more of the remaining required diesel generators, those diesel generators affected would also be declared inoperable upon discovery, and TS 3.8.1.1 ACTION statement,f or TS 3.0.3, as appropriate, would apply.

0