ML18052A715
| ML18052A715 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 09/25/1986 |
| From: | Kuemin J CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| RTR-NUREG-0737, TASK-2.F.2, TASK-TM NUDOCS 8610060407 | |
| Download: ML18052A715 (1) | |
Text
consumers Power POW ERi Nii NllCHlliAN'S PROliRESS General Offices: 1945 West Parnell Road, Jackson, Ml 49201 * (517) 788-0550 September 25, 1986
- Director, Nuclear Reactor Regulation US Nuclear Regulatory Commission Washington, DC 20555 DOCKET 50-255 - LICENSE DPR PALISADES PLANT -
INADEQUATE CORE COOLING INSTRUMENTATION SYSTEM -
REACTOR VESSEL LEVEL MONITORING SYSTEM - NUREG-0737 ITEM II.F.2 -
OPEN ITEMS A meeting between members of your staff, NRC's contractor from ORNL, Consumers Power Company, and our contractor, Technology for Energy Corporation, was held on August 28, 1986 in Bethesda.
The subject of the meeting was the proposed modifications for resolution of the NUREG-0737 issue of Inadequate Core Cooling Instrumentation and, in particular, our Reactor Vessel Level Monitoring System.
The modifications are scheduled to be completed during the next refueling outage.
Two open items resulted from our meeting.
The first item is the verification of the type of sensors to be used in the Reactor Vessel Level Monitoring System.
Three types of sensors were developed by Technology for Energy Corporation, the "Fast," Slow," and "Signature of Uncovery" types.
Only the "Fast" sensor will be employed at Palisades.
The second item concerns the cable to be used in the !CCI system upgrades.
New environmentally qualified (EQ) cable is to be used for the reactor water level monitoring system.
New EQ cable was also used inside containment for the 16 upgraded In-Core Instruments/Core Exit Thermocouples.
Upgrading of the subcooling margin monitor will not require new EQ cable as the existing qualified cable will be used.
r.:K=~
Staff Licensing Engineer CC Administrator, Region III, USNRC NRC Resident Inspector - Palisades OC0986-0157-NL02 8610060407 PDR ADOCK
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