ML18053A304

Forwards Application for Amend to License DPR-20,updating Low Temp Overpressure Protection Tech Spec Requirements

ML18053A304
Person / Time
Site:	Palisades
Issue date:	04/12/1988
From:	Berry K CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
Shared Package
ML18053A306	List: ML18053A304 ML18053A308 ML18053A332
References
NUDOCS 8804190047
Download: ML18053A304 (2)

Text

consumers Power Kenneth W Berry POWERING Director lllllCHIGAN"S PROGRESS Nuclear licensing General Offices: 1945 West Parriall Road, Jackson, Ml 49201 * (517) 788-1636 April 12, 1988 Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 DOCKET 50-255 - LICENSE DPR PALISADES PLANT -

TECHNICAL SPECIFICATIONS CHANGE REQUEST - LOW TEMPERATURE OVERPRESSURE PROTECTION (LTOP) - REVISION 1 The attached proposed change to the Palisades Technical Specifications is necessary to update the Low Temperature Overpressure Protection (LTOP) requirements.

This is a revision to the December 22, 1987 Technical Specification Change Request. It includes those requirements committed to in our January 20, 1988 and January 22, 1988 submittals and is intended to satisfy the NRC staff as measures to enhance protection against core damage if a loss of coolant event were to occur during heatup and cooldown. Changes from Revision 0 of this proposed Technical Specifications change are marked with a single hash mark in the right-hand margin in the "Request for Change" section, and a double hash mark on the proposed pages. Proposed pages with a single hash mark are the same as Revision O. Revised Figures 3-1, 3-2, and 3-3 have been added and no hash marks included.

As the reactor vessel is exposed to fast neutrons, the ability of the material at the reactor beltline to resist brittle fracture at low temperatures is decreased. Periodically, the upper pressure limit at given temperatures must be lowered to keep the pressure/temperature relationship within the ductile range of the beltline material. Specifically, this proposed Technical Specifications change ensures LTOP equipment will keep the Primary Coolant System (PCS) temperature and pressure parameters within the limits specified by 10CFR50 Appendix G. Concurrently, safety injection equipment operability is specified to protect against a Loss of Coolant event. The conflicting objectives of limiting system pressure for LTOP consideration and insuring adequate Safety Injection flow are difficult to satisfy u~der all PCS conditions; however, we believe this proposal presents the optimum combination of presently existing regulation, protection objectives and plant operability.

J

(" .

Nuclear Regulatory Commission 2 Palisades Plant TSCR - Rev 1 - LTOP April 12, 1988 Consumers Power Company commits to operate the Palisades Plant in accordance with these proposed changes to the Technical Specifications until they are approved as a license amendm~nt. The proposed changes to the Technical Specifications are more restrictive than existing Technical Specifications.

A check for $150.00, as required by 10CFR170.21, was included with our December 22, 1987 submittal of Revision 0 of this Technical Specification Change Request.

Kenneth W Berry Director, Nuclear Licensing CC Administrator, Region III, NRC NRC Resident Inspector - Palisades Attachment OC0288-0039-NL02