ML20217A390

Proposed Tech Specs Surveillance Requirements 4.8.1.1.2f.4)a) & 4.8.1.1.2f.6)a) at Power Re Enforcement Discretion

ML20217A390
Person / Time
Site:	Comanche Peak
Issue date:	03/18/1998
From:	TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:
Shared Package
ML20217A387	List: ML20217A390 TXX-9807, LAR 98-004 to Licenses NPF-87 & NPF-89,requesting Enforcement Discretion to Allow Units 1 & 2 to Perform Shutdown Surveillance Requirements 4.8.1.1.2f.4)a) & 4.8.1.1.2f.6)a) at Power
References
NUDOCS 9803250027
Download: ML20217A390 (2)

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1.

ATTACHMENT 3 to TXX 98079 AFFECTED TECHNICAL SPECIFICATION PAGES (TS 4.8.1.1.2f.4)a) and 4.8.1.1.2f.6)a))

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' Attachment 3 to TXX-98079 Page 1 of 1 ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 4)

Simulating a loss-of offsite power by itself, and:

a)

Verifying deenergization of the emergency busses and load shedding ***, froin the emergency busses, and

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b)

Verifying the diesel starts on the auto start signal, energizes the emergency busses with permanently connected loads within 10 seconds, energizes the auto-connected shut-down loads through the load saquencer and operates for greater than or equal to 5 minutes while its generator is loaded with the shutdown loads.

After energization, the steady state voltage and frequency of the emergency busses shall be maintained at 6900 1 690 volts and 60 1 1.2 Hz during this test.

5)

Verifying that on a Safety Injection Actuation test signal, without loss-of-offsite power, the diesel generator starts on the auto-start signal and operates on standby for greater than or equal to 5 minutes.

The generator voltage and frequency shall be 6900 1 690 volts and 60 1 1.2 Hz within 10 seconds after the auto-start signal: the steady state generator voltage and frequency shall be maintained within these limits during this test:

6)

Simulating a loss of-offsite power in conjunction with a Safety Injection Actuation test signal, and:

a)

Verifying deenergization of the emergency busses and load I

shedding **_* from the emergency busses:

l b)

Verifying the diesel starts on the auto start signal, energizes the emergency busses with permanently connected loads within 10 seconds, energizes the auto-connected emergency (accident) loads through the load sequencer and operates for greater than or equal to 5 minutes while its generator is loaded with the emergency loads.

After energization, the steady state voltage and frequency of the emergency busses shall be maintained at 6900 1 690 volts and 60 1 1.2 Hz during this test: and c)

Verifying that all automatic diesel generator trips, except i

engine overspeed and generator differential, are automatically bypassed upon loss of voltage on the emergency bus concurrent with a Safety Injection Actuation signal.

7)

Verifying the diesel generator operates for at least 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

During the first 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> of this test, the diesel generator ynmmn n

• • • On.a,one time basisuthe; verification (that load. shedding, occurs as=a result:ofi x

the'deenergitationtof the? emergency; busses'.mayibe performed at;poweriforffuel:

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cycl ei63n; Uni ty and ifuel; cycl e 1on; Uni t12 ;

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