ML19209C653
| ML19209C653 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 10/12/1979 |
| From: | Finfrock I JERSEY CENTRAL POWER & LIGHT CO. |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 7910170179 | |
| Download: ML19209C653 (4) | |
Text
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Jersey Central Power & Light Company
--- m (rL l j li Madison Avenue at Punch Bowi Road
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Morristown, New Jersey 07960 c-(201)455-8200 October 12, 1979 Director Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D. C.
20555
Dear Sir:
Subject:
Oyster Creek Nuclear Generating Station Docket No. 50-219 Fire Protection - Request for SER Supplement Amendment No. 29 to Operating License No. DPR-16 requires that certain modifications be made to the Oyster Creek Nuclear Plant for fire protection ourposes. Tnese modifications are described in the arsociated Fire Protecton Safety Evaluation Report (SER) forwarded with Amendment 29 which states, in part, that the modifications are to be acomplished in accordance with the schedule presented in Table 3.1 of the SER.
Since the Oyster Creek refueling outage has been re-scheduled for January,1980 in order to allow for more efficient utilization of the nuclear fuel, we are requesting a delay in implementation of certain fire protection modifications which require, for safety reasons, that the plant be in a shutdown condition during installation. Tne reauested changes to Table 3.1 of the SER and a discussion of these changes is presented in Enclosure 1.
We have concluded that a delay in the implementation of the modifications discussed in Enclosure 1 will not adversely affect the health and safety ot the public since all other modifications have been completed or will
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be in accordance with the SER existing and supplements thereto.
Very truly yours, d 4N o Ivan R. Fin ock Jr. Vice President la Enclosures 1148 131 791017017'l Jersey Central Power & Lght Cowany is a Member of the General Pubhc Utit.es System
TABLE 3.1 IMPLEMENTATION DATES FOR LICENSE PROPOSED MODIFICATIONS Item Date 3.1.1 Fire Barriers December 1979+ 3.1.2 Fire Barrier Penetrations December 1979++ 3.1.3 Dampers January 1980 3.1.4 Fire Detectors December 1979+++ 3.1.5 Halon Suppression Systes December 1979H++ 3.1.6 Water Spray Systems December 1979 3.1.7 Sprinkler Systems September 15,1979*** 3.1.8 Carbon Dioxide Suppression System February 1980 3.1.9 Hose Stations September 15, 1979 3.1.10 Aqueous Film Forming Foam Completed 3.1.11 Portable Extinguishers Completed 3.1.12 Emergency Breathing Apparatus Completed 3.1.13 Removal of Combustible Material Completed 3.1.14 Transformer Dike December 1979 3.1.15 Diesel Generator Fuel Oil Line January 1980 3.1.16 Ventilation System Changes December 1979 3.1.17 Ioss of Ventilation Alarm-Battery Room Completed 3.1.18 Suppression System Valve Control Completed 3.1.19 Portable Smoke Removal Equipnent Canpleted 3.1.20 Alternate Water Supply to the Yard Loop July 1980 3.1.21 Protection From Water Damage December 1979 3.1.22 New Battery Room and Reroutirg Battery Cables Coupleted 3.1.23 Remote Shutdown Station
- Schedule dependent on equipment availability (not to exceed end of 1980 refueling outage)
- Except for the system extensions in the turbine building condenser bay which shall be completed during the next refueling outage.
- Schedule dependent on equipment availability (not to exceed end of 1980 refueling outage)
+ Except for the 4160 switchgear vault which shall be completed during the next refueling outage. ++Except for the doors to the steam tunnel which shall be installed during the next refueling outage. +++Except those in the area of instrument racks RKOl, RKO2, and RKO3 and in the control room which shall be completed during the next refueling outage. +H+Exceot the system in the control room panels which shall be installed during the next refueling outage. 1148 132
DISCUSSION SER Item 3.1.1 Fire Barriers, and; SER Item 3.1.8 Carbon Dioxide Suppression Systm All proposed fire barrier modifications will be installed by December, 1979,with the exception of the 4160 volt switchgear vaults. It is felt that the vault and associated CO2 system should be installed during a shutdown condition since it involves heavy construction work in the area of the emergency switchgear units 1C and 1D which are extremely important to plant safety equipment. Since the proposed detection system for the 4160 volt area will be operational by the December date, operators will have early warning of a fire condition and can take appropriate measures to control the fire in an expeditious manner. SER Item 3.1.2 Fire Barrier Penetrations All fire barrier penetration modifications will be completed by the December, 1979 date,with the exception of the uprating of the steam tunnel doors which are located in the condenser bay. Installation of these doors during operation would expose the installers to high levels of radiation. Installation during a shutdown condition will reduce this exposure to significantly low levels. A fire occurring in this area would not immde the safe shutdown of the plant. It is therefore concluded that a delay in the installation of these doors in order to redtwe radiation exposure to workers is consistent with ALARA obj ectives. SER Item 3.1.3 Dampers All damper modifications will be cmpleted by December,1979, with the exception of those associated with the 4160 switchgear vault and the control / cable spread rom systms. Dampers for the 4160 volt switchgear vault will be accomp!.ished in conjunction with the vault installation. The control / cable spread room ventilation system will be significantly upgraded during the upconing refueling outage. 'Ihe proposed water spray and detection system for the cable spread room will be completed by December,1979, and the Control Room is a continuously manned area which provides a high level of protection for these areas. SER Item 3.1.4 Fire Detectors The proposed fire detection cysts will be empleted by the December, 1979 date,with the exception of those detectors in the area of three instrument racks (RKO 1, RKO 2, and RKO3) and the control room. The detectors for the control room will be installed in conjunction with the proposed halon system discussed below. The installation of detectors in the area of RKO 1 and RKO 2 involves the erection of scaffolding in close proximity to the instrument racks jeopardizing safety related instrumentation. In the event of a fire other w detectors in adjacent areas will alert operating personnel of a fire condition. 4 SER Item 3.1.5 Halon Systems All of the proposed halon systms will be completed by December,1979
with the exception of the system for the control room panels. The installation of this system requires piping and detector installations within safety related panels where the working area is constricted; therefore, these installations must be accomplished while the plant is in a shutdown condition. Should a fire occur, it would te detected by operating personnel who have available suffici 't extinguishers to 'timit fire damage to a very small area. SER Item 3.1.15 Diesel Fuel Oil Line This modification must be accomplished during plant shutdown since the Technical Specifications require the emergency diesel generators to be operable during plant operation. Should a fire occur, it would be detected by the detection system Wich will be installed by the Decemlyar,1979 date. The Fire Brigade would be dispatched and have hose streams and a manual fora station available for fire suppression. 1148 134}}