ML20095J231

Proposed Tech Specs,Raising Low Voltage Action Level to 105 Volts DC

ML20095J231
Person / Time
Site:	Three Mile Island
Issue date:	12/21/1995
From:	GENERAL PUBLIC UTILITIES CORP.
To:
Shared Package
ML20095J224	List: ML20095J220 ML20095J226 ML20095J231
References
NUDOCS 9512270010
Download: ML20095J231 (6)

Text

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4 4.6 - EMERGENCY POWER SYSTEM PERIODIC TESTS Anolicability: Applies to periodic testing and surveillance requirement of the emergency power system.

Obiebtive: To verify that the emergency power system will respond promptly and properly when required. t Specification:

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 g,e nerator 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 following. This test will be conducted every refueling interval on each diesel generator.

(1) Verify that the diesel generator starts from ambient condition upon receipt of the ES signal and is ready 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. j 4.6.2 Station Batteries

a. The voltage, specific gravity, and liquid level of each cell will be measured and recorded every 92 days and 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 and 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.

b. The voltage and specific gravity of a pilot cell will be measured and recorded weekly.

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, 149. 157

, 9512270010 951221 PDR ADOCK 05000289 P PDR

C311-95-2277

. Page 3 D. Battery Cell Surveillance Requirements The current TMI-l Technical Specifications contain a SR (4.6.2.a) that requires that the voltage, specific gravity, and liquid level of each cell will be measured and recorded monthly. The proposed change would extend the surveillance interval to three months and add checks following battery discharge or battery overcharge events. The quarterly checks of liquid level, specific gravity, and voltage are consistent with IEEE-450 and the RSTS. In addition to quarterly checks there are requirements to check, within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of a severe battery discharge < 105 V cr a battery overcharge > 150 V, the battery voltage, specific gravity, and liquid level. The checks following a severe battery discharge or overcharge are also consistent with IEEE-450, which recommends such checks i following a severe discharge or overcharge, to ensure that no significant degradation of the battery occurs as a consequence. Based on discussions with a l

C&D Batteries representative (the Station Battery Vendor) and our review, these changes would provide additional assurance of long term battery reliability.

Thus, revision of the surveillance frequency for Battery Cell voltage, specific )

gravity, and liquid level to that specified by RSTS is justified. l 1

IV. NO SIGNIFICANT HAZARDS CONSIDERATION GPU Nuclear has determined that this Technical Specification Change Request involves no significant hazards consideration as defined by NRC in 10 CFR 50.92 because: j

1. Operation of the facility in accordance with the proposed amendment would not involve a significant increase in the probability of occurrence or the consequences of an accident previously evaluated. The proposed amendment involves changes to the TMI-1 Technical Specifications which are consistent with the B&W Standard Technical Specifications (STS), NUREG-1430. This change does not involve any change to system or equipment configuration. The proposed amendment revises certain surveillance requirements, or extends certain surveillance intervals. The reliability of systems and components relied upon to

. prevent or mitigate the consequences of accidents previously evaluated is not l degraded by the proposed changes. Therefore, this change does not involve a significant increase in the probability of occurrence or the consequences of an accident previously evaluated, f

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UNITED STATES OF AMERICA l ,

NUCLEAR REGULATORY COMMISSION IN THE MATTER OF DOCKET NO. 50489 GPTT NUCLEAR CORPORATION LICENSE NO. DPR-50 1

CERTIFICATE OF SERVICE

. This is to certify that a revised page to Technical Specification Change Request No. 254, to Appendix A of the Operating License for Three Mile Island Nuclear Station Unit 1, has, on the date given below, been filed with executives of Londonderry Township, Dauphin County, .

' Pennsylvania; Dauphin County, Pennsylvania; and the Pennsylvania Department of Environmental Resources, Bureau of Radiation Protection, by deposit in the United States mail, addressed as follows:

Mr. Jay H. Kopp, Chairman Mr. Russell L. Sheaffer, Chairman Board of Supervisors of Board of County Commissioners.

Londonderry Township of Dauphin County R.D. #1, Geyers Church Road P.O. Box 1295 Middletown, PA 17057 Harrisburg, PA 17108 Director, Bureau of Radiation Protection PA Department of Environmental Resources P.O. Box 2063 Harrisburg, PA 17120 ATIN: Mr. Stan P. Maingi GPU NUCLEAR CORPORATION BY- u e Pmsident and Director, TMI DATE: /b, 2-/ , / fh~

• l GPU Nuclear Corporation u eM .

Route 441 South P.O. Box 480 Middletown, Pennsylvania 17057-0480 f (717)944-7621

• Wnter's D. rect Dial Number:

(717) 948-8005 December 21, 1995 C311-95-2531 1

Mr. Jay H. Kopp, Chaincan Board of Supervisors of 4

Iondonderry Township

R.D. #1, Geyers Church Road Middletown, PA 17057

Dear Mr. Kopp:

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l Enclosed please find a revised page to Technical Specification Change Request No. 254, to the Operating License for Three Mile Island Nuclear Station, Unit 1.

This request was filed with the U. S. Nuclear Regulatory Commission on the above date.

Sincerely,

/

J. Knubel Vice President and Director, TMI aWm l

Enclosure j i

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I GPU Nuclear Corporation NUCIear sovte 44' soutn P.O. Box 480

' Middletown, Pennsylvania 17057-0480 (717)944 7621 Water's Direct Dial Numbec (717) 948-8005 December 21, 1995 C311-95-2531 d

i Mr. Russell L. Sheaffer, Chairman Board of County Commissioners of

Dauphin County

P.O. Box 1295 Harrisburg, PA 17108 l 1

Dear Mr. Sheaffer:

Enclosed please find a revised page to Technical Specification Change Request No. 254, to the Operating License for 'Ihree Mile Islam Nuclear Station, Unit 1.

This request was filed with the U. S. Nuclear Regulatory Commission on the above date, ,

1 Sincerely,

. / /

4

%{

J. Knubel

/, Vice President and Director, TMI awm l

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' GPU Nuclear Corporation Nuclear ;n::',gvt" Middletown, Pennsylvania 17057-0480 (717) 944 7621 Writer's Direct Dial Nurnber:

j (717) 948-8005 i

i December 21, 1995 4

C311-95-2531 Director, Bureau of Radiation Protection PA Department of Environmental Resources P.O. Box 2063 I Harrisburg, PA 17120 ATIN: Mr. Stan P. Maingi .,

1

Dear Mr. .Maingi:

j Encl'osed please find a revised page to Technical Specification Change Request No. 254, to

~

the Operating License for Three Mile Island Nuclear Station, Unit 1.

This document was filed with the U. S. Nuclear Regulatory Commission on the above date.

• Sincerely, c>

J. Knubel Vice President and Director, TMI awm Enclosure j

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