ML19345C419
| ML19345C419 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 11/20/1980 |
| From: | Tedesco R Office of Nuclear Reactor Regulation |
| To: | Ahel J COMMONWEALTH EDISON CO. |
| References | |
| NUDOCS 8012040660 | |
| Download: ML19345C419 (6) | |
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' UNITED STATES
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NUCLEAFI 9EGULATORY COMMISSION 4
W ASHINGTON, D. C. 20555 f
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Docket Nos.:
50-373
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GE m-cw Mr. J. S.-Abel
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- S Director of Nuclear Licensing 0;
ex Commonwealth Edison Company Post Office Box 767 Chicago, Illinois 60690
Dear Mr. Abel:
Subject:
Q-List Review, LaSalle County Station, Unit Nos. I and 2
'We have completed our review of Section 3.2 of the FSal Safety Analysis Report for the structures, systems and compor, ants subject to you-Operational Quality Assurance Program (Q-List). We have identified certain deficMncies which resulted in the enclosed request for additional. information.
Our review is generally based on considerations for safety-related items in effect prior to the TMI-2 accident. We anticipate a need to supplement the final 0-List at a later date as full implementation of the TMI Action Plan occurs.
Please inform us after_ receipt of this letter of the date you can supply the requested information.
Please contact us if you desire any discussion or clarificatica of the enclosed request.
Sincerely, 1
KlTcp~
Robert L. Tedesco, Assistant Director for Licensing Division of Licensing
Enclosure:
As stated cc w/ encl.:
See next page To12040 M N
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Mr. J. S. Abel'
' Director.of Nuclear Licensing Commonweal th. Edison Company Post Office: Box 767 j.
Chicago, Illinois' 60690 4
cc: Richard: E. 'Powell, Esq.
Isham, Lincoln &'Beale One First National Plaza 2400 Chicago, Illinois 60670 4
Dean Hansell, Esquire Assistant Attorney General 188 West Randolph Street Suite 2315 Chicago, Illinois 60601 Mr. Roger Walker, Resident Inspector U. S. Nuclear Regulatory Commission Post Office Sox 737 Streator, Illinois '61364 i
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. ENCLOSURE Request for Additional Information LaSalle County Station, Units 1 & 2 Docket Nos.'50-373 and 50-374 420.0 Quality Assurance Branch 421.6 The following items from the Q-list need expansion and/or clarification as noted.
Revise the list as indicated or justify. not doing so.
1.
Clarify that motor ope'rators for Q-listed valves are included on the Q-list.
2.
Clarify that post-LOCA ECCS leak detection systems are included on the Q-list.
421.7 The following items do not appear on the Q-list. Add the following items to the list or justify not doing so.
1.
Missile barriers protecting safety-related equipment.
2.
Scram accumulators associated with the Control Rod Drive System.
3.
Steam lines to the RCIC turbine along with associated valves and restraints.
4.
Auxiliary spillway.
5.
Cooling lake embankment.
6.
CSCS pond (submerged).
7.
Lake screen house.
8.
River screen house.
9.
CSF filtration units.
- 10. Onsite power systems (Class lE).
(a) Diesel generator packages including auxiliaries (e.g., lube system, jacket cooling, air start system, governor, voltage regulator, excita-tion system).
(b) 4160 volt switchgear.
(c) 480V load centers.
(d) 480V motor controls centers.
(e) -Instrumentation control and power cables.(including underground cable system, cable splices, connectors and terminal blocks).
(f) Conduit and cable trays and their supports.
Note - Raceway installations containing Class lE cables and other race,
I way installation required to meet Seismic Category 1 require-ments (those whose failure during a seismic event may-result in damage to any Class lE or other safety-related system or components).
a (g) Transformers.
(h) Protective relays and control. panels.
(j) -AC control power inverters.
(k) 120 AC vital bus distribution equipment.
(1) Containment electrical penetration assemblies.
(m) Other cable penetrations (fire stops).
- 11. DC power systems (Class lE).
(a) l?.'V batteries, battery chargers, and distribution equipment.
(b). Ca & s.
(c) Conduit.and cable trays and their supports.
Note - Raceway installations containing Class lE cables and other race--
way installations required to meet Seismic Category 1 require-ments (those whose failure during a seismic event may result in damage to any Class lE-or other safety-related system or components).
(d) Battery.acks.
(e) Protective relays and control panels.
12.
Instrumentation and controls required for initiation, operation, and control of the following engineered safety systems:
(a) Emergency Co're Cooling System.
(i) Automatic Depressurization System (b) Fission Products Removal and Control Systems.
13.
Instrumentation and controls for the following systems required for safe shutdown:
(a). Standby Liquid Control System.
(b) -Autonatic Depressurization System.
(c) Control Rod Drive System.
1 (1) Scram Discharge Volume Level ~ Switches'
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- 14. Safety-related display. instrumentation.
(a) Post Accident Tracking Instrumentation (b) Safe Shutdown Instrumentation IS.
Instrumentation and controls for all other systems required for safety.
(a) Process Radiation Monitoring System
- Air Ejector and Off Gas Radiation Monitoring System
- Process Liquid Radiation Monitoring System 16.
Instrumentation and controls for auxiliary and supporting systems.
(a) Demineralized Water Makeup System (b) Ultimate Heat Sink
- 17. Combustible Gas Control System.
(a) Containment /Drywell!H2 Monitoring System I
.18.
Engineering Safety Feature Actuation System.
- 19. Primary Containment.
(a) Access hatches / locks / doors (b) Penetration assemblies (c) Vacuum relief valves (d) Reinforced concrete (e) Liner (f) Downcomers (g) Drywell
- 20. Sampling Systems - piping' and containment isolation. valves..
- 21. Meteorological Data Collection Programs.
22.
Expendable and consumable items necessary for the functional performance of critical. structures, systems,;and components (i.e., weld rod, fuel oil, boric acid, snubber oil, etc.).
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. 23. Reactor vessel internals (e.g., dryers, separators, feedwater spargers, jet pump instrumentation, etc.).
- 24. Biological shielding within primary containment, reactor bui' ding, auxiliary building.
- 25. Main steam piping between outermost isolation valves up to turbine stop val ves.
- 26. Main steam branch piping to first valve closed or capable of automatic actua-tion.
- 27. Main turbine bypass piping up to' bypass valve.
- 28. First valve that is either.normally closed or capable of automatic closure in branch piping connected to main steam and turbine bypass piping.
- 29. MSIV leakage control system downstream piping from steamline connection to first valve.
- 30. RCIC turbine.
- 31. Speat fuel pool and liner.
- 32. Auxiliary ouilding.
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