ML20083C721

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Proposed Tech Specs Allowing one-time-only Extension of 7 Day Allowed out-of Svc Time for One Inoperable Diesel Generator for Diesel Generators 3 & 4
ML20083C721
Person / Time
Site: Brunswick Duke Energy icon.png
Issue date: 09/10/1991
From:
CAROLINA POWER & LIGHT CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20083C700 List:
References
NUDOCS 9109270133
Download: ML20083C721 (2)


Text

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'TLECTRICAL POWER SYSTEMS LIMITING CONDITION FOR OPERATION (Continued)

ACTION (Continued) 1.

Demonstrate the OPERABILITY of the A.C.

offsite sources by performing Surveillance Requirement 4.8.1.1.1.a 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 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereaf ter; 2.

Demonstrat.e the OPERABILITY of the remaining diesel generators by pe r forening Surveillance Requirements 4.8.1.1.2.a.4 and

4. 8.1.1. 2. a. $ wi thin 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> and a t.

l e a s t.

once por 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> thereafter; 3.

Rostore the inoperable diesel generator to OPERABLE status within 7 days or be in at least Il0T SilVTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> nr.d in COLD SilUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

  • c.

With one offsite circuit. and one diesel generator of the above required A.C. electrical power sources inoperable:

1.

Demonstrate the OPERABILITY of the remainlug A.C.

sources by performing Surveillance Requirements 4.8.1.1.1.n, 4.8.1.1.2.a.4, and 4.8.1.1.2.n. 5 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 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter; 2.

Restore at least. one of the inoperable sources to OPERABLE status within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> or be in at. Icast 110T Sil0TDOWN 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 SilUTDOWN wit.hin the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />; 3.

With the inoperable of fsite A.C. power source restored, demonstrate the OPERABILITY of the remaiaing A.C. power sources as required by ACTION b; restore four diesel generators to OPERABLE status within 7 days from time of initial loss or be in at least it0T SilUTDOWN 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 SilUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />;'

4.

With the inoperable dicac1 generator restored, demonstrate the OPERABILITY of the remaining A.C.

power sources as required by ACTION a; restore two offsite circuits to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> from time of init.ial loss or be in at least il0T SilVTDOWN l

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 Sl!UTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

d.

With two of the above required offaite A.C. circuits inoperable:

l 1.

Demonstrate the OPERABILITY of four dicac1 generators by performin'g l

Surveillance Requirements 4.8.1.1.2.a.4 and 4.8.1.1.2.n.S within two hours and at least once per-12 hours thereafter, unless the l-diesel generators are already operating;

  • During the Brunswick Unit 2 Refueling Outage No. 9, on a one time basis. Diesel Concrator Number 3 or Dio.aol Generator Number 4 may each be inoperable for up to 14 days to support planned maintenance activities, provided the remainin6 three diesel generators are OPERABLE. Restore the inoperable Diesel Generator Number 3 or Diesel Cennrator Number 4 to OPERABLE status within 14 days or be in at least IIOT SilUTDOWN 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 SilUTDOWN within the tollowing 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

BRUNSWICK UNIT 1 3/4 8-2 Amendment No. 104 9109270133 910910 PDR ADOCK 03000325 P

PDR-

ELECTRICAL POWER SYSTEMS LIMITING CONDITION FOR OPERATIDN (Contitmed)

ACTION (Continued) 2.

Restore at Icast one of the inoperable of f site sources to OPERAHLE 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 1 cast ll0T SilVTDOWN 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 SliUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />; 3.

With one offsite source restoreJ, deinonstrat e the OPERABILITY of the remaining A.C. power sources as required by ACTION a; restore two offsite circuits to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> from time of initial loss or be in at least il0T SilDTDOWN 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 SilUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, c.

With two of the above required diosol generators inoperabic:

1.

Demonstrate the OPERABILITY of the remaining A.C. power sources by performing Surveillance Requirements 4.8.1.1.1.n, 4.8.1.1.2.a.4,.

and 4.8,1.1.2.n.5 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 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter; 2.

-Restore at least three diesel generators to OPERABLE status within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> or be in at 1 cast. Il0T SIIUTDOWN wit.hin t he next.12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SilUTD(NN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />; 3.

With one diesel generat.or re stored, dernonstrat e the OPERABILITY of the remaining A.C. power sources as required by ACTION b; restore at least 4 diesel generators to OPERABLE status within 7 days from time of initial loss or be in at least h0T SilUTDOWN within the next 22 hours2.546296e-4 days <br />0.00611 hours <br />3.637566e-5 weeks <br />8.371e-6 months <br /> and in e'.D Sil0'IDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

i SURVEILIANCE REOUIREMENTS 4.8._1.1.1 Each of the above required independent circuits between the offsite transmission network and the onsite Class 1E distribution system shall be:

a, Determined OPERABLE at least. once per 7 days by verifying correct breaker alignment.s and indicated power availability, and b.

Demonstrated OPERABLE at least once per 18 months during shutdown by manually transferring unit power supply from the normal circuit to the alternate circuit.

l L

1

  • During the Brunswick Unit 2 Refueling Outage No. 9, on a one time basis, Diesel Generator Number 3 and Diesel Generator Number 4 may each be inoperabic for up

.to.14 days to support planned maintenance activities, provided the remaining

(

three diesel generators are OPERABLE. Restore the inoperable Diesel Generator l

number 3 or Diesel Cencrator Number 4 to OPERABLE status within 14 days or be in l

at least 110T SHUf bOWN within the non 12 houcs and in COLD GliUTD0'.;U li t.hin the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

BRUNSWICK UNIT 1 3/4 8 3 Amendment No. 104

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