ML20039C217

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Proposed Changes to Tech Specs App A,Extending 72-h Limiting Condition for Operation for One Inoperable Diesel Generator
ML20039C217
Person / Time
Site: Hatch Southern Nuclear icon.png
Issue date: 12/18/1981
From:
GEORGIA POWER CO.
To:
Shared Package
ML20039C216 List:
References
TAC-47446, NUDOCS 8112290069
Download: ML20039C217 (4)
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Georgia Power d ATTACWENT 1 NRC DOCKET 50-366 OPERATING LICENSE PFF-5 EDWIN I. HATCH NUCLEAR PLANT UNIT 2 PROPOSED CHANGES TO TECWICAL SPECIFICATIONS The proposed change to Technical Sapcifications (Appendix A to Operating License PPF-5) would be incorporated as-follows:

Remove Page Insert Page 3/4 8-1 3/4 8-1 3/4 8-2 3/4 8-2 8112290069 811218 DR ADOCK 05000366 PDR

1 3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.1 A.C. SOURCES A.C. SOlRCES - OPERATING LIMITING C0tOITION FOR OPERATION 3.8.1.1 As a minimum, the following A.C. electrical power sources shall be OPERABLE:

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a. Two physically independent circuits between the offsite transmission network and the onsite Class lE distribution system, and
b. Three separate and independent diesel generators, each with:
1. A separate day tank containing a minimum of 900 gallons of fuel,
2. A separate fuel storage tank containing a minimum of 32,000

+ gallons of fuel, and

3. A separate fuel transfer pump.

APPLICABILITY: CONDITIONS 1, 2, and 3.

ACTION:

a. With either one offsite circuit or one diesel generator of the above required A.C. electrical power sources inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirements 4.8.1.1.1.a and 4.8.1.1.2.a.4 within one 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;* restore at least two offsite circuits and three diesel generators ** 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 SHJTDOWN 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 SFUTDOWN within the fcllowing 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
b. With one offsite circuit and one diesel generator of the above required A.C. electrical power sources inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing
  • For the loss of the 2C diesel generator from 12/16/81 thru 1/2/82, perform Surveillance Requirement 4.8.1.1.1.a at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, and perform Surveillance Requirement 4.8.1.1.2.a.4 at least once per day for diesel generators 2A and 18. The provisions of Specification 3.0.4 do not apply for this change.
    • For the loss of the 2C diesel generator from 12/16/81 thru 1/2/82, restore diesel generators 2A and IB to Operable status. The provisions of Specification 3.0.4 do not apply for this change.

HATCH - UNIT 2 3/4 8-1 m

i I ELECTICAL POWER SYSTEMS LIMITING C0tOITION FOR OPERATION (Continued)

ACTION (Continued)'

Surveillance Requirements 4.8.1.1.1.a and 4.8.1.1.2.a.4 t.ithin one 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; 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 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 SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. Restore at least two offsite circuits and three diesel generators ** to OPERABLE status l within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> from the time of initial loss or 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 SHJTDOWN 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 offsite A.C. circuits inoperable, demonstrate the OPERABILITY of three diesel generators by performing Surveillance Requirement 4.8.1.1.2.a.4 within one 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, unless the diesel

- generators are already operating; restore at least one of the inoperable offsite sources 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 HDT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />. With only one offsite source restored, restore at least 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 the time of initial loss or be in at least HOT SHJTDOWN 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 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 diesel generators inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirements 4.8.1.1.1.a and 4.8.1.1.2.a.4 within one 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; restore at least one of the inoperable 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 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 SHJTDOWN with the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. Restore three diesel generators ** 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 l time of initial loss or 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 SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

SURVEILLANCE REQUIREMENTS 4.8.1.1.1 Each of the above required independent circuits between the offsite transmission network and the onsite Class lE distribution system shall be:

a. Determined OPERABLE at least once per 7 days by verifying correct breaker alignments and indicated power availability, and L
b. Demonstrated OPERABLE at least once per 18 months during shutdown by transferring, manually and automatically, unit power supply from the normal circuit to the alternate circuit.
    • For the loss of the 2C diesel generator from 12/16/81 thru 1/2/82, restore diesel generators 2A and 18 to Opereble status. The provisions of Specification 3.0.4 do not apply for this change.

HATCH - UNIT 2 3/4 8-2 m-

GeorgiaPower A ATTACmENT 2 NRC DOCKET 50-366 OPERATING LICENSE PPF-5 EDWIN I. HATCH NUCLEAR PLANT UNIT 2 PROPOSED CHANGES TO TECHNICAL SPECIFICATIONS Pursuant to 10 CFR 170.12 (c), Georgia Power Company has evaluated the attached proposed amendments to. Operating License ifF-5 and has determined that: , .

a) The proposed-amendment does not require the evaluation of a new Safety Analysis Report or rewrite of the facility license; b) The proposed amendment .does not contain several complex issues, does not involve ACRS review, and does not require an environmental impact statement; c) The proposed amendmeat does not involve a complex issue, an environmental issue or more than one safety issue; d) The proposed amendment does involve a single safety issue, namely, extension of the LCO for one inoperable diesel generator.

e) The proposed change is therefore a Class'III amendment.

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