ML20129H579

Forwards Updated Fire Protection Mod Implementation Schedule.Three Altered Items Listed Re Handwheel Chain & Declutch Lever Implementation,Fire Wrapping of Auxiliary Feedwater Pump 2C & Structural Ceiling Beam Fireproofing

ML20129H579
Person / Time
Site:	Zion  File:ZionSolutions icon.png
Issue date:	07/09/1985
From:	Leblond P COMMONWEALTH EDISON CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
References
0347K, 347K, NUDOCS 8507190250
Download: ML20129H579 (6)

Text

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Commonwealth Edison O One First Nition11 Plaza. Chic co, lihnois Address Reply to: Post Office Box 767 Chicago, Illinois 60690 July 9, 1985 i

Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, DC 20555

Subject:

Zion Nuclear Poser Station Units 1 and 2 Fire Protection NRC Docket Nos. 50-295 and 50-304

Reference:

August 31, 1984 letter from R. N. Cascarano to H. R. Denton.

Dear Mr. Denton:

The referenced letter submitted for your review and approval a modification implementation schedule of the work necessary to achieve compli-ance with 10 CFR 50, Appendix R. The purpose of this letter is to provide you with an updated senedule (attached). In general, the modification work has been proceeding in accordance with the original estimates. However, there are three items that have been altered. These are discussed individually below.

Item 4 The handwheel chains and declutch levers for MOV-MS0005, MOV-MS000ll, and MOV-RH8701 were not installed because the valve manufacturer was unable to support the seismic qualification of these additions. As an alternativs, ladders have been chained in place adjacent to these valves. This will allow manual operation of these valves. This work is complete.

ITEM 12 The fire wrapping of 2C AFW pump has been delayed until the Fall, 1985 refueling cutage. This will preclude wrapping the cables and then connecting the same cables only two months later. The performance of both activities during the same time frame will better ensure the integrity of the fire wrapping.

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8507190250 850709 PDR ADOCK 05000295 F PDR

1 H. R. Denton July 9, 1985 ITEM 22 The fireproofing of the structural ceiling beams in the ESF switcngear rooms has been delayed until the next available refueling outage. This schedule change will reduce the probability of reactor trips inadvertently causeo by the construction activity in the rooms.

If any questions arise concerning this matter, please direct them to this office.

Very truly yours, P. C. LeBlond Nuclear Licensing Administrator 1m Attachment cc: NRC Rasident Inspector - Zion J. Norris - NRR U347K

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7/09/85 FIRE PROTECTION MODIFICATIONS SCHEOULE Page 1 of 4 Unit 1 Unit 2 Installation Installation Remarks

1. Providing means of venting instrument 1985 1985 air from PORV-RC455 and PCV-RC456 Outage Outage (i.e. de-energize associated solenoid Complete operated valve)-Add isolation switches in inner cable spread room, reroute DC control cables in conduit t

2. Providing means of venting instrument 1985 1985 air from letdown and excess letdown Outage Outage valves (i.e., de-energize associated Complete solenoid operated valve).

-Add isolation switch in inner cable spreading rooms

3. Installing a 3-way valve to facilitate Complete Complete bleeding of instrument air from FCV-MS57.

4. Install chains for handwheel and 1985 1985 Ladders were declutch lever for valves Outage Outage installed as an MOV-MS0005, MOV-MS0011 and MOV-RH8701. Complete alternative.

(see letter.)

5. Work associated with mounting steam 1985 1985 generator pressure indicator PI-MSS 14 Outage Outage outside valve house. Complete

6. Work associated with mounting handloader 1986 1985 Dependant upon for atmospheric dump valve MOV-MS0017 Outage Outage Engineering (SG A) outside valve house. Includes Design &

permanent mount for air bottle. Equip. Delivery

7. Work associated with the reactor 1985 1985 l coolant pump oil collection system Outage Outage i - Seismic review of ring header Complete

- Orain to cavity flood sump

- Cavity flood sump modificatinns 80 Installation of residual heat 1986 1985 Inst. Delivery removal temperature and flow Outage Outage Exceeds indicator and local WA stations Acceptable time frame for 1985 U-1 Outage

9. Work associated with boron sampling 1986 1985

- Modify A0V air lines to facilitate Outage Outage opening "A" luop sample

- Provide sample Valve and Cont. Iso.

Valves with pottable air bottle

- Provide scheme to provide feed to the sample panel l- ._ _ _ . - _ _ _ _ . . _ - . _

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7/09/85 FIRE PROTECTION MODIFICATIONS SCHEDULE Page 2 of 4 Unit 1 Unit 2 Installation Installation Remarks

10. Work associated with rerouting Olesel 1985 1985 Gen, fuel oil transfer pumps feed Outage Outage Complete

11. Indepenuent power feed for instrumentation a) Addition of new power supplies

- RC Loop Pressure (403) 1986 1985 Inst. Delivery

- PZR Level (459) Outage Outage Exceeds

- SG Level (501) Acceptable time frame for 1985 U-1 Outage b) Work associated with routing new MI cable

- RC Loop Pressure (403) 1986 1985 Cable Delivery

- PZR Level (459) Outage Outage Exceeds

- SG Level (501) acceptable

- T hot leg time frame for

- T cold leg 1985 U-1 Outage c) Addition of Isolation Switches

- RC Loop Pressure (403) 1986 1985

- PZR Level (459) Outage Outage

- SG Level (501) d) Work associated with installing isolators

- SG Pressure 1985 1985

- Aux. FW Flow Outage Outage

- SG Levels Complete e) Work associated with installation 1985 1985 of isolation panels Outage Outage Complete

12. Work associated with rerouting 1985 1985 AFW Pump "C" Feed Outage Outage Complete Fire Wrap G 579'-0" 7/31/85 1985 Unit 1 fire Outage wrapping in progress. (see letter.)

13. Isolation Switches for diesel 1986 1985 generator output breakers Outage Outage

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7/09/85 FIRE PROTECTION MODIFICATIONS SCHEDULE Page 3 of 4 Unit 1 Unit 2 Installation Installation Remarks

14. Procurement and Installation of

1) Fire Dampers fct: 1986 1985 Eng. to be a) Battery Roons Outage Outage complete by b) Charging Pump Cubicles Sept. 15, 1984 2.4 Fire Doors Equip.

Delivery exceeds acceptable time frame for 1985 U-l Outage

15. Procurement and Installation of July 31, 1985 In progress.

New Smoke or Heat Detectors

- Aux. Building

16. Extending Metal Sheathing around N/A 1985 Outage one side of AFW 2C motor

17. Work associated with Terminating Cable-1985 Centrifugal charging power cable 1A Outage N/A and providing 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> fire wrap on Complete conduit on 579'-0" elev. Wrap-7/31/85 In progress.

18. Work associated with adding bypass Com,nletc 1985 around closing side solenoid on main Outage steam isolation valve.

19. Installing fire stops in cable pan June 1, 1985 trays for component cooling water pumps. Complete

20. Separating Units fire detection June 1, 1985 system on the component Complete cooling water pumps

21. Provide Diesel Generator Local 1986 1985 Control Capability. Outage Outage

22. Fire Proofing Structural Steel in ESF 1986 1985 Delayed to switchgear rooms (cciling beams only) Outage Outage operational concerns.

(see letter.)

23. Add /Re-Alm Emergency Lights January 1, 1986 In progress.

24. Communication Mods June 1, 1985 Complete J

7/09/85 FIRE PROTECTION MODIFICATIONS SCHEDULE Page 4 of 4 Unit 1 Unit 2 Installation Installation Remarks

25. Reroute feeds to ESF MCC's 1985 1985 Outage Outage Complete

26. Cables requiring termination 42285) DC Feeds to Bus 149 1985 N/A 42286) DC Feeds to Bus 149 Outage Complete 42287) DC Feeds to 1B Diesel Generator Complete N/A 42286) DC Feeds to IB Diesel Generator 42278) Feed to battery charger 112 Complete N/A 32285) DC Feed to BW 249 N/A 1985 32286) DC Feed to BW 249 Outage 0347K l

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