ML20148A783
| ML20148A783 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 03/01/1988 |
| From: | Robey R COMMONWEALTH EDISON CO. |
| To: | Sniezek J Office of Nuclear Reactor Regulation |
| References | |
| RAR-88-10, NUDOCS 8803210157 | |
| Download: ML20148A783 (2) | |
Text
.'
Commonwealth Edison 4
ouad Cities Nuclear Power Station 22710 206 Avenue North Cordova. lilinois 61242 Telephone 309/654 2241 RAR-88-10 March 1, 1988 Mr. J. H. Sniezek, Deputy Dir.
Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D. C.
20555 Enclosed please find a listing of those changes, tests, and experiments completed during the month of February, 1988, for Quad-Cities Station Units 1 and 2, DPR-29 and DPR-30. A summary of the safety evaluation is being reported in compliance with 10 CFR 50.59.
Thirty-nine copies are provided for your use.
Respectfully, COMMONHEALTH EDISON COMPANY QUAD-CITIES NUCLEAR POWER STATION 2A.2 y R. A. Robey l
Services Superintendent vk Enclosure l
l cc:
I. Johnson T. Hatts/J. Galligan N
1 0027H/00612 8803210157 880301 PDR ADOCK 05000254 g
SPECIAL TEST l-107 The purpose of this test is to monitor the performance of the Mechanical Seal Systems installed on the Unit One Turbine Building Closed Cooling water pumps.
Safety Evaluation 1.
The probability of an occurrence or the consequence of an accident, or malfunction of equipment important to safety as previously evaluated in the Final Safety Analysis Report is not increased because the mechanical seal system will reduce pump leakage into the Turbine Building Equipment Drain sump and help eliminate problems associated with radwaste processing.
The mechanical seal system will require less operator attention than compression packing.
2.
The possibility for an accident or malfunction of a different type than any previously evaluated in the Final Safety Analysis Report is not created because pump leakage through compression packing is not addressed in the FSAR.
Pump leakage due to a mechanical seal failure will be no greater than pump leakage due to the failure of the existing compression packing.
3.
The margin of safety, as defined in the basis for any Technical Specification is not reduced because packing gland leakage for the Turbine Building Closed Cooling water pumps is not defined in the basis for any Technical Specification.
The mechanical seal system will not affect pump operability or pump characteristics defined in the Technical Specifications.
0027H/00612