ML20100J693

Proposed Tech Specs,Consisting of Change Request 254, Revising Proposed TS Page 4-46 on Paragraph 4.6.2 That Provides Addl Testing Requirements in Case Battery Cell Parameters Not Met

ML20100J693
Person / Time
Site:	Three Mile Island
Issue date:	02/22/1996
From:	GENERAL PUBLIC UTILITIES CORP.
To:
Shared Package
ML20100J666	List: ML20100J663 ML20100J683 ML20100J693
References
NUDOCS 9602290223
Download: ML20100J693 (1)

Text

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• 4.6 ~ , EMERGENCY POWER SYSTEM PERIODIC TESTS Aoolicability: Applies to periodic testing and surveillance requirement of the emergency power system.

Obiective: To verify that the emergency power system will respond promptly and properly when mquired.

Specificalips The following tests and surveillance shall be performed as stated:

4.6.1 Diesel Generators

a. Manually-initiate start of the diesel generator, followed by manual synchronization with other power sources and assumption of load by the diesel generator up to the name-plate rating (3000 kw). This test will be conducted every month on each diesel generator. Normal plant operation will not be effected.

b. Automatically start and loading the emergency diesel generator in accordance with Specification 4.5.1.1.b/c including the followmg. This test will be conducted every refueling interval on each diesel generator.

(1) Verify that the diesel generator stants from ambient condition upon mceipt of the ES signal and is mady to load in s 10 seconds.

(2) Verify that the diesel block loads upon simulated loss of offsite power in s30 seconds.

(3) The diesel operates with the permanently connected and auto connected load for 25 minutes.

(4) The diesel engine does not trip when the generator breaker is opened while carrying emergency loads.

(5) The diesel generator block loads and operates for 25 minutes upon reclosure of the diesel generator breaker.

c. Each diesel generator shall be given an inspection at least annually in accordance with the manufacturer's recommendations for this class of stand-by service.

4.6.2 Station Batteries

a. The voltage, specific gravity, and liquid level of each cell will be measured and recorded:

(1) every 92 days (2) once within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after a battery discharge < 105 V ,

(3) once within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after a battery overcharge > 150 V (4) If any cell parameters are not met, measum and record the parameters on each connected cell every 7 days themafter until all battery parameters are met.

b. The voltage and specific gravity of a pilot cell will be measured and recorded weekly. If any pilot cell parameters am not met, perform surveillance 4.6.2.a on C each connected cell within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> and every 7 days thereafter until all battery parameters are met.

c. Each time data is recorded, new data shall be compared with old to detect signs of abuse or deterioration.

4-46 Amendment No. 70, I49,157 9602290223 960222 PDR ADOCK 050002C9 P PDR