ML20023B623

Application to Amend License DPR-34,revising App a Tech Specs to Assure Operability of Plant Protective Sys & Other Critical Instrumentation by Defining Min Operable Instrument Channels & Trip Settings

ML20023B623
Person / Time
Site:	Fort Saint Vrain
Issue date:	04/19/1983
From:	Lee O PUBLIC SERVICE CO. OF COLORADO
To:
Shared Package
ML20023B592	List: ML20023B591 ML20023B623 ML20023B639
References
NUDOCS 8305050222
Download: ML20023B623 (8)

Text

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BEFORE THE UNITED STATES NUCLEAR REGULATORY COMMISSION In the Matter of the Facility Operating License)

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of ) Docket No. 50-267

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PUBLIC SERVICE COMPANY OF COLORADO )

Application for Amendment to Appendix A of Facility Operating License License No. DPR-34 0F THE PUBLIC SERVICE COMPANY OF COLORADO FOR THE FORT ST. VRAIN NUCLEAR GENERATING STATION This application for Amendment to Appendix A of Facility Operating License, License No. DPR-34, is submitted for NRC review and approval.

Respectfully submitted, PUBLIC SERVICE COMPANY OF COLORADO By S/0. R. Lee

0. R. Lee, Vice President KELLY, STANSFIELD & 0'DONNELL Bryant O'Donnell Robert E. Thompson Public Service Company Building Denver, Colorado 80202 Attorneys for Applicant 8305050222 830419 DR ADDCK 0500026

STATE OF COLORADO )

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CITY AND COUNTY OF DENVER)

0. R. Lee, being first duly sworn, deposes and says; That he is Vice President of Electric Production of Public Service Company of Colorado, the Licensee herein; that he has read the foregoing Application for Amendment to Appendix A of Facility Operating License and knows the contents thereof, and that the statements and matters set forth therein are true and correct to the best of his knowledge, information and belief.

S/0. R. Lee

0. R. Lee Subscribed and sworn to before me this 22.F#d ay of April,1983.

Witness my hand and official seal.

My commission expires: CXOdCTL 7 h[3 r

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fdM'1 Notary Public ' /

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ATTACHMENT 1

SUMMARY

OF PROPOSED CHANGES

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SUMMARY

OF PROPOSED CHANGES

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Section Description of Change LCO 4.4.1 1) Reworded footnote to describe actual reference lo-cation after reformatting.

2) Added statement to Note (f) for clarification.

LCO 4.4.5 1) Modified specification to eliminate references to specific moisture monitors.

2) Modified basis to reflect the specification change described above.

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• ATTACHMENT 2 PROPOSED CHANGES I

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l Fort St. Vrain #1 Technical Specifications Amendment #

Page 4.4-1 4.4 INSTRUMENTATION AND CONTROL SYSTEMS - LIMITING CONDITIONS FOR OPERATION Applicability Applies to the plant protective system and other critical instrumentation and controls.

Objective To assure the operability of the plant protective system and other critical instrumentation by defining the minimum operable instrument channels and trip settings.

Specification LCO 4.4.1 - Plant Protective System Instrumentation, Limiting Conditions for Operation The limiting conditions for the plant protective system instrumentation are shown on Tables 4.4-1 through 4.4-4.

These tables utilize the following definitions:

Degree of Redundancy - Difference between the number of

. operable channels and the minimum number of operable channels which when tripped will cause an automatic system trip.

Operable Channel - A channel is operable if it is capable of fulfilling its design functions.

1 Inoperable Channel - Opposite of operable channel.

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Fort St. Vrain #1 Technical Specifications Amendment #

Page 4.4-2 Tables 4.4-1 through 4.4-4 are to be read in the following manner: If the minimum operable channels or the minimum degree of redundancy for each functional unit of a table cannot be met or cannot be bypassed under the stated permissible bypass conditions, the following action snall be taken:

• For Table 4.4-1, the reactor shall be shut down within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

For Table 4.4-2, the affected loop shall be shut down within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

For Table 4.4-3, the affected helium circulator shall be shut down within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

4 For Table 4.4-4, the reactor shall be shut down within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

r l l *The second paragraph on page 4.4-2 of LCO 4.4.1 is 1-replaced by the following paragraph during the period of January 3, 1983, through January 13, 1983.

l l "For Table 4.4-1, the reactor shall be shut down within l 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />, except that to facilitate maintenance on the Plant Protective System (PPS) moisture monitors, the l

moisture monitor input trip functions to the Plant Protective System which cause scram, loop shutdown,

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circulator trip, and steam water dump may be disabled.

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Fort St. Vrain #1 Technical Specifications Amendment #

Page 4.4-3 During the time that the Plant Protective moisture monitor trips are disabled, an observer in direct communication with the reactor operator shall be positioned in the control room in the location of control boards I-03 and I-05. The observer shall continuously monitor the primary coolant moisture levels indicated by the Analytical System moisture monitors (MM-9306 and MM-9307) and the Primary Coolant Pressure Indicators (PI-1108, PI-1109, and PI-1110), and shall alert the reactor operator to any indicated moisture or pressure change."

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