ML20245F255
| ML20245F255 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 08/03/1989 |
| From: | Stols R COMMONWEALTH EDISON CO. |
| To: | Murley T Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20245F260 | List: |
| References | |
| 0223T:1, 223T:1, NUDOCS 8908140217 | |
| Download: ML20245F255 (2) | |
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N-Commonwrith Edison
/; 72 Wtst Adams Street, Chicago, minois A
" J Address Reply to: Post OTiice Box 767
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d - Chicago, Illinois 60690 0767 August 3, 1989 l'
'Dr. Thomas E, Murley, Director Office _of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Hashington, DC 20555
Subject:
Quad Cities Station Units 1 and 2 Application for Amendment to Facility Operating Licenses DPR-29 and DPR-30 Appendix A, Technical Specifications NPC Docket Nos. 50-254 and 50-265-Dr-. Murley:
Pursuant to 10 CFR 50.90, Commonwealth Edison proposes to amend Appendix A, Technical Specifications to Facility Operating License DPR-29 and DPR-30 for Quad Cities Nuclear Power Station.
The proposed Technical Specifi-
- cation reduces the number of temperature switches which initiate a system isolation for the High Pressure Coolant Injection (HPCI) and Reactor Core.
Isolation Cooling (RCIC) systems in the event of system area high temperature.
- In addition, the trip level setting is reduced to maintain system response time and limit radiation releases in the event of a system steam line break.
The HPCI and RCIC systems are being modified due to number of spurious system
. 1 solation caused by minor-steam leaks at the turbine bearings.
The modifica -
tion should eliminate such' spurious actuation yet provide the safety feature of systere isolation in the event of steamline break.
These proposed changes are listed in-Attachment 1 and further described in Attachments 2 and 3.
The schedule for performing the modifications is as follows:
Unit 1:
The modification for HPCI.and RCIC will be performed during the 1989 Refuel Outage currently scheduled to begin September 11, 1989.
Unit 2:
The HPCI system modification will be performed during an outage of sufficient duration to accomplish the work (provided acceptance of the Technical Specification changes) or the 1990 Refuel Outage scheduled for February 5, 1990.
The RCIC system modification will be performed during the 1990 Refuel Outage.
B908140217 890003 E
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..T.E. Murley; August 3, 1989.
The proposed changes have been reviewed and approved by both On-Site and.0ff-Site Review in accordance with Commonwealth Edison Company's proce--
dures.
The proposed amendments >have been reviewed in accordance with.10 CFR lt 50.92(c).and.it has been determined that'no significant hazards consideration
. exists.
This evaluation is documented in Attachment 4.
-Commonwealth Edison is notifying'the State of Illinois of our.
application for this amendment by transmitting'a' copy of this letter and its attachments to the designated' State Official.
'Please direct any questions you may have regarding this matter to this
. office.
i Very truly yours, Nuclear Licensing Administrator im i
Attachments 1:
Proposed Changes to Appendix A Technical 1
Specifications for Quad Cities Units 1 and 2 2:
Summary of Changes 3:
Description and Bases for Amendment Request 4:
Evaluation of No Significant Hazards 5:
General Electric Report, AE-05-0184, entitled " Quad Cities Station Units 1 and 2, HPCI/RCIC Room Leak Detection Phases I" dated January, 1984 6:
General Electric. Report, AE-59-0584, entitled " Quad Cities Station Units 1 and 2. HPCI/RCIC Room Leak Detection Phases II and III" dated June, 1984 7:
Impell Corporation Calculation, 0590-322-001, entitled l
" Justification of HPCI/RCIC Temperature Switch Setpoint" dated August 28, 1988 cc:
Regional Administrator, Region III 1
Office of Nuclear Safety T.M. Ross - Project Manager, NRR 0223T:2
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