ML20002A753
| ML20002A753 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 10/27/1980 |
| From: | Kountanis B EG&G, INC. |
| To: | Wilson R Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20002A754 | List: |
| References | |
| ESD-6974, IEB-80-06, IEB-80-6, NUDOCS 8011210471 | |
| Download: ML20002A753 (3) | |
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Energy 80esourements Group
- San Remen Operations 28010LD CROW CANYON ROAO. SAN RAMON CA
- TEL (415) 837 5381
- MAIL BOX 204. SAN RAMON CA 94583 l
Mr. R.C. Wilson 27 October 1980,
U.S. NUCLEAR REGULATORY COMMISSION ESD# 6973 Division of Systems Integration Control Systems Branch-P772E 9-M 7920 Norfolk Avenue r o l
Bethesda, MD.
20014 C.!*.
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RE: QUAD CITIES STATION, UNITS 162 I
U DOCKET NOS. 50-254 and 50-265
-s G
3 IE BULLETIN 80-06, ESP RESET CONTROLS y
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Dear Dick:
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Enclosed is the Quad Cities Station, Units 162 preliminary technical evaluation report (TER) for IE Bulletin 80-06.
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The licensee, Commonwealth Edison, has responded to IE Bulletin No. 80-06 as follows.
- 1) lias complied with Action item i by reviewing the drawings j
to determine if all 1ssociated safet'y-related equipment i
remains in its emergency mode upon reset of an ESF actuating j
signal.
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- 2) Has complied with Action item 2 by verifying by test that l
the equipment operates as shown on the drav5 gs.
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.t1 Has identified 11 systems which have equipment that may l
deviate from the emergency mode upon manual reset at the i
system level for valves and equipment 5 t has net provided l
a description of actions taken or planned to assure adequate i
equipment control, nor a schedule for their implementation.
We therefore conclude that the licensee is not in compliance with Action items 3 and 4.
l The 11 systems, identified by the licensee, which may_ change position l
upon manual reset at the system level for vsives and equipment are as follows.
- 1) Off-gas trip reset - Re-opens off-gas isolation valves after l
high radiation trip signal has cleared.
Resets 15-minute timer on off-gas spike.
2)
RPS scram reset - Closes scram valves and re-energizes scram pilot solenoid valves after RPS trip signals have cleared.
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7 Mr. R.C. Wilson QUAD CITIES STATION, UNITS 162 27 October 1980 Page Two
- 3) Control room vent isolation reset - Re-opens outside air and exhaust air dampers, provided that SBGT initiation, main steam high blow, smoke detector, and cold outside air signals have cleared.
4)
Reactor building vent isolation reset - Opens vent isolation dampers after isolation signals have cleared.
- 5) Groups I, II, and III PCI resets - Permissive to re-open isolation valves, provided that the valves in the group are first placed in the closed position and all isolation signals are cleared for that group.
- 6) Auto-blowdown timer reset - If auto-blowdown initiation signals have cleared, can re-close relief valves.
- 7) Auto-blowdown drywell pressure reset - Resets drvwell pressure relays for auto-blowdown after drywell high pressure condition has cleared. Allows relief valves to re-close if low-low reactor water level condition has reset.
Group IV or Group V isolation valves, provided that isolation signals have cleared.
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- 9) HPCI drain valves rese: - Re-opens HPCI drains to condenser and closes drains to drain pot, provided that initation signals have cleared.
10)
RHR logic resets - Permissive to re-open RHR valves after LPCI initation signals have cleared. Also, permissive to reposition LPCI and recirculation valves after LPCI loop-select initiation signals have cleared.
- 11) Group II, M0-1001-29 valve reset - Permissive for M0-1001-29A/B to auto-open after Group II isolation while shutdown cooling is in progress.
Before a final assessment of compliance can be completed for the above listed items, more information must be supplied by the licensee.
The information needed is an operational description of the above systems.
the effects of reseting each system, a description of the changes to be made (including schematic diagrams and sketches) in order to make the systems compliant and a schedule for their implementation.
If the licensee does not modify the systems then a comprehensive justification should be given for our review.
9 Ftr. R.C. Wilson QUAD CITIES STATION, UNITS 162 27 October 1980 Page Three Please forward your comments and recommendations to me after you have reviewed the enclosed TER.
Sincerely, (M
BILL K0UNTANIS ENGINEERING SPECIALIST Enclosures Distribution EGSG/SR0 LLNL NRC J. Cooper bl. Dittmore P. Shemanski D. !!ackett K. Jacoby D. Laudenbach B. Sta>m bl. Nishimura BK/ss