ML18038B906

Proposed Tech Specs Supporting one-time 14-day Limiting Condition for Operation for Each EDG to Accommodate Pending Vendor Recommended Maint Activities

ML18038B906
Person / Time
Site:	Browns Ferry
Issue date:	06/19/1997
From:	TENNESSEE VALLEY AUTHORITY
To:
Shared Package
ML18038B905	List: ML18038B904 ML18038B906
References
NUDOCS 9707020241
Download: ML18038B906 (23)

Text

ENCLOSURE 2 TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)

UNITS 2 AND 3 PROPOSED TECHNICAL SPECIFICATION (TS) CHANGES TS-391T MARKED PAGES CUSTOM TS I. AFFE TED PA E LI T Unit 2 page 3.9/4.9-9 Unit 3 page 3.9/4.9-8 See attached.

970702024i 9706i9 PDR ADOCK 05000260 P PDR

NOV i8 1988 LIMITIHG COHDITIOHS FOR OPERATIOH SURVEILLAHCE REQUIREMEHTS 4.9.B. '.9.B.

3~ When one of the units 1 3. When one of the and 2 diesel generator is units 1 and 2 diesel IHOPEKQKZ, continued generators is found REACTOR POWER OPERATIOH is to be IHOPERABLE, permissible during the all of the remaining succeeding 7 days, diesel generators provided that 2 offsite shall be demonstrated power sources are to be OPERABLZ within available as specified 24 hours, and power in 3.9.A.l.c and all of availability for the the CS, RHR (LPCI and associated boards containment cooling) shall be verified systems, and the remaining within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and three units 1 and 2 diesel at least once per generators are OPERABLZ. 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter.

If this requirement cannot be met, an orderly shutdown shall be initiated and the reactor shall be in the COLD SHUTDOWH COHDITIOH within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

4, When one units 1 and 2 4. When one 4-kV 4-kV shutdown board is shutdown board is IHOPERABLZ, continued found to be REACTOR POWER OPERATIOH IHOPERABLE, all is permissible for a period diesel generators of 5 days provided that associated with the 2 offsite power sources remaining 4-kV are available as boards shall 'hutdown specified in 3.9.A.l.c be demonstrated to be and the remaining 4-kV OPERABLZ within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, shutdown boards and and power availability associated diesel for the remaining 4-kV generators, CS, RHR (LPCI boards 'hutdown and containment cooling) shall be verified systems, and all 480-V within 1 hours1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and emergency power boards at least once per are OPERABLE. If this 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter.

requirement cannot be met, an orderly shutdown shall b'e initiated and [Temporary Change: The preceding 7-day LCO time limit may be the reactor shall be in extended to 14 days to support completion of the COLD SHUTDOWH COHDITIOH maintenance activities within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. during the time period from January 1, 1998, to February 1, 1999, after which time this temporary change is no longer valid. This allowance can be. used only once for each individual diesel generator).

BFH 3 '/4.9-9 AMENDMENT NO. 15 4 Unit 2

4 UX R E EC IC SYS AUB 19 1888 NG COtjtD 0 S 0 OP T 0 CE U S 3.9.B. 0 erat o v th o erable 4.9.B. 0 erat o with no erable

~ui >~me t ~uiment Whenever the reactor is in STARTUP mode or RUH mode and not in a Cold Condition, the availability of electric power shall be as specified in 3.9.A except as specified herein.

1. From and after the date 1. When only one that only one offsite offsite pover source pover source is available, is OPERABLE, all unit 3 reactor operation is diesel generators must permissible under this be demonstrated to be condition for seven days. OPERABLE vithin 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, and pover availability for the associated boards shall be verified vithin 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.

2. When one unit 3 diesel 2. When one unit 3 diesel generator (3A, 3B, 3C, generator is found to be or 3D) is inoperable, inoperable, all of the continued reactor operation remaining unit 3 diesel is permissible during the generators shall be succeeding 7 days, provided demonstrated to be that tvo offsite pover OPERABLE vithin 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, sources are available as and pover availability specified in 3.9.A.l.c. for the associated boards and all of the CS, RHR shall be verified vithin (LPCI and containment 1 hour and at least once cooling) systems, and the per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter.

remaining three unit 3 diesel generators are OPERABLE. f th s require-ment cannot be met, an preceding

[Temporary Change: The orderly shutdown shall be comp e initiated and the reactor extended to 14 days to support shall be shut dovn and in maintenance activities the time period the Cold Condition vithin 1, 1998, to Februarychange 1, 19 99 24 hours. which time t hi s temporary e

This allowance is no longer val can be used only once for eac individual diesel genezatorj.

/<~ ~ "+)

BFH 3.9/4.9-8 AMENDMBfTHg, yp4 Unit 3

ENCLOSURE 3 TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)

UNITS 2 AND 3 PROPOSED TECHNICAL SPECIFICATION (TS) CHANGES TS-391T REVISED PAGES CUSTOM TS I. AFFE TED PA E LI T Unit 2 page 3.9/4.9-9 Unit: 3 page 3.9/4.9-8 II. VI ED PA E See attached.

4 E CTRIC STE

• J LI T G CONDI ONS FO OP ION SURVEI LANCE RE UXREMENTS 3.9.B. O eration With I o e able 4.9.8. 0 eration W th Ino erable

~Ei ment ~Ei imermt

3. When one of the units 1 3. When one of the and 2 diesel generator is units 1 and 2 diesel INOPERABLE, continued generators is found REACTOR POWER OPERATION is to be INOPERABLE, permissible during the all of the remaining succeeding 7 days, diesel generators provided that 2 offsite shall be demonstrated power sources are to be OPERABLE within available as specified 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, and power in 3.9.A.l.c and all of availability for the the CS, RHR (LPCI and associated boards containment cooling) shall be verified systems, and the remaining within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and three units 1 and 2 diesel at least once per generators are OPERABLE. 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter.

P'emporary Change: The preceding 7-day LCO time limit may be extended to 14 days to support completion of maintenance activities, during the time period from January 1, 1998, to February 1, 1999, after which time this temporary change is no longer valid. This allowance can be used only once for each individual diesel generator.]

If this requirement cannot be met, an orderly shutdown shall be initiated and the reactor shall be in the COLD SHUTDOWN CONDITION within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

'4. When one units 1 and 2 4. When one 4-kV 4-kV shutdown board is shutdown board is INOPERABLE, continued found to be REACTOR POWER OPERATION INOPERABLE, all is permissible for a period diesel generators of 5 days provided that associated with the 2 offsite power sources remaining 4-kV are available as shutdown boards shall specified in 3.9.A.l.c be demonstrated to be and the remaining 4-kV OPERABLE within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, shutdown boards and and power availability associated diesel for the remaining 4-kV generatorsg CSg RHR (LPCI shutdown boards and containment cooling) shall be verified systems, and all 480-V within 1 hours1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and emergency power boards at least once per are OPERABLE. If this 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter.

requirement cannot be met, an orderly shutdown shall be initiated and the reactor shall be in the COLD SHUTDOWN CONDITION within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

BFN 3.9/4.9-9 Unit 2

r~

3.9 UXILI Y ELECTRICAL S STE I

LIM TI CONDIT ONS F OPERATIO SURVEILLANCE RE UIREMENTS 3.9.B. eratio w t Ino erable 4.9.B. 0 eration wit

~cCu~iient I o erable EcCE~>m~ef Whenever the reactor is in STARTUP mode or RUN mode and not in a Cold Condition, the availability of electric power shall be as specified in 3.9.A except as specified herein.

l. From and after the date that only one offsite

1. When only one offsite power source power source is available, is OPERABLE, all unit 3 reactor operation is diesel generators must permissible under this be demonstrated to be condition for seven days. OPERABLE within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, and power availability for the associated boards shall be verified within l hour 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.

2. When one unit 3 diesel 2. When one unit 3 diesel generator (3A, 3B, 3C, generator is found to be or 3D) is inoperable, inoperable, all of the continued reactor operation remaining unit 3 diesel is permissible during the generators shall be succeeding 7 days, provided demonstrated to be that two offsite power OPERABLE within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, sources are available as and power availability specified in 3.9.A.l.c. for the associated boards and all of the CS, RHR shall be verified within (LPCI and containment l hour 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.

cooling) systems, and the remaining three unit 3 diesel generators are OPERABLE.

[Temporary Change: The preceding 7-day LCO time limit may be extended to 14 days to support completion of maintenance activities during the time period from January 1, 1998, to February 1, 1999, after which time this temporary change is no longer valid. This allowance can be used. only once for each individual diesel generator.]

If this requirement cannot be met, an orderly shutdown shall be initiated and the reactor shall be shut down and in the Cold Condition within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

BFN 3.9/4.9-8 Unit 3

4

~ ~

ENCLOSURE 4 TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)

UNITS 2 AND 3 PROPOSED IMPROVED STANDARD TECHNICAL SPECIFICATIONS (ISTS) CHANGE TS-391T MARKED PAGES ISTS I. AFFE TED PA E LI T Unit 2 and 3 page 3.8-3 II. D PA E See attached.

~

AC Sources Operating 3.8.1 ACTIONS COND IT ION REQUIRED ACTION COMPLETION TIME B. (continued) B.3.1 Determine OPERABLE 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> Unit 1 and 2 DG(s) are not inoperable due to commo'n cause failure.

OR B.3.2 Perform SR 3.8.1.1 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> for OPERABLE Unit 1 and 2 DG(s).

AND B.4 Restore Unit 1 and 2 7 day DG to OPERABLE status. AND 14 days from discovery of failure to meet LCO .

C. One division of 480 V C.l Restore required 7 days load shed logic division of 480 V inoperable. load shed logic to OPERABLE status.

D. One division of common D. 1 Restore required 7 days accident signal logic division of common inoperable. accident signal logic to OPERABLE status.

(continued)

• [Temporary Change: This 7-day LCO time limit may be extended to 14 days to support completion of maintenance activities during the time time this 1999, after period from January 1, 1998, to February 1, allowance can be used which temporary change is no longer valid. This only once fo each individual diesel.]

BFN-UNIT 2 3. 8-3 Amendment *Rl

AC Sources Operating 3.8.1 ACTIONS CONDITION REQUIRED ACTION COHPLETION TIHE B. {continued) B.3. 1 Determine OPERABLE 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> Unit 3 DG(s) are not inoperable due to common cause'ailure.

OR 8.3.2 Perform SR 3.8.1.1 for OPERABLE Unit 3 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> DG(s).

AND B.4 Restore Unit 3 DG to OPERABLE status, 7 days AND 14 days from discovery of failure to meet LCO C. One division of 480 V C.1 Restore required 7 days load shed logic division of 480 V inoperable. load shed logic to OPERABLE status.

D. One division of common 0.1 Restore required 7 days accident signal logic division of common inoperable. accident signal logic to OPERABLE status.

(continued)

• (Temporary Change: This 7-day LCO time limit may be extended to 14 days to support completion of maintenance activities during the time period from January 1, 1998, to February 1, 1999, after which time this temporary change is no longer valid. This allowance can be used only once for g )

each individual diesel.]

8FN-UNIT 3 3.8-3 Amendment *Rl

ENCLOSURE 5 TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)

UNITS 2 AND 3 PROPOSED IMPROVED STANDARD TECHNICAL SPECIFICATIONS (ISTS)

CHANGES TS-391T REVISED PAGES -ISTS I. AFFE TED PA E LI T Unit 2 and 3 page 3.8-3 page 3.8-3a II. REVI ED PA E See attached.

~ AC Sources Operating 3.8.1 ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME B. (continued) B.3.1 Determine OPERABLE 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> Unit 1 and 2 DG(s) are not inoperable due to common cause failure.

OR B.3.2 Perform SR 3.8.1.2 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> for OPERABLE Unit 1 and 2 DG(s).

AND B.4 Restore Unit 1 and 2 7 days DG to OPERABLE status. [Temporary Change: This 7 day LCO time limit may be extended to 14 days to support completion of maintenance activities during the time period from January 1, 1998, to February 1, 1999, after which time this temporary change is no longer valid. This allowance can be used only once for each individual diesel.]

AND (continued)

BFN-UNIT 2 3.8-3 Amendment *Rl

~ ~

AC Sources Operating 3.8.1 ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME B. (continued) 14 days from discovery of failure to meet LCO C. One division of 480 V C.I Restore required 7 days load shed logic division of 480 V inoperable. load shed logic to OPERABLE status.

D. One division of common D. 1 Restore required 7 days accident signal logic division of common inoperable. accident signal logic to OPERABLE status.

(continued)

BFN-UNIT 2 3.8-3a Amendment

AC Sources -Operating 3.8.1 ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME B. (continued) 8.3.1 Determine OPERABLE 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> Unit 3 DG(s) are not inoperable due to common cause failure.

OR B.3.2 Perform SR 3.8.1.1 for OPERABLE Unit 3 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> DG(s).

AND B.4 Restore Unit 3 DG to OPERABLE status. 7 days

)Temporary Change: This 7 day LCO time limit may be extended to 14 days to support completion of maintenance activities during the time period from January 1, 1998, to February 1, 1999, after which time this temporary change is no longer valid. This allowance can be used only once for each individual diesel.]

AND (continued)

BFN-UNIT 3 3.8-3 Amendment *RI

AC Sources -Operating 3.8.1 ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME B. (continued) 14 days from discovery of failure to meet LCO C. One division of 480 V C.1 Restore required 7 days load shed logic division of 480 Y inoperable. load shed logic to OPERABLE status.

D. One di vi s i on of common D.l Restore required 7 days accident signal logic division of common inoperable. accident signal logic to OPERABLE status.

(continued)

BFN-UNIT 3 3.8-3a Amendment

a t gp V

ENCLOSURE 6 TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)

TS-391T UNITS 2 AND 3 COMMITMENT

SUMMARY

These compensatory measures will be included as activity restrictions in the plant outage schedule for the EDGs and will be applied for any EDG outage time past the current EDG 7-day LCO.

Require that another off-site power source be available to the affected unit in addition to TS requirement off-site sources be available. Requiring a thirdthat two off-site source further reduces the likelihood that EDGs would be needed.

Restrict any work activities that would affect the ability to cross-tie the opposite unit EDG to the 4-kV shutdown board for the EDG in the outage (i.e., EDG A cross-tie capability to 4-kV Shutdown Board 3EA). This would ensure that an on-site power source would be readily available for manual alignment to the affected shutdown board if needed.

3. Restrict work activities on the 500-kV switchyard cross-tie breakers supporting the affected unit. This will ensure the required 500-kV off-site sources have access to both 500-kV buses, reducing the likelihood that a 500-kV source would be lost to the affected unit.

4. No high risk switchyard maintenance will be scheduled during the outage time period when the EDG is unavailable.

High risk emergent work, if any, will be required to be approved by the Plant Manager and Operations Manager.

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Lo I