ML19242C299

Safety Evaluation Supporting Amend 38 to License DPR-16

ML19242C299
Person / Time
Site:	Oyster Creek
Issue date:	06/29/1979
From:	Office of Nuclear Reactor Regulation
To:
Shared Package
ML19242C298	List: ML19242C297 ML19242C299 ML19242C301
References
NUDOCS 7908100218
Download: ML19242C299 (7)

Text

,

SU'FiiMENT NO.1 TO THE MARCH 3,1978 FIRE PROTECTION SAFETY EVALUAEION REPORT BY THE OrFICE OF NUCLEAR REACTOR REGULATION U. S. N'JCLEAR REGULATORY COMMISSI0

PF0 VISIONAL OPERATING LICENSE NO. DPR-16 JERSEY CENTRAL POWER & LIGHT COMPANY OYSTER CREEK NUCLEAR GENERATING STATION DOCKET NO. 50-219 AMENDMENT NO. 38 Date:

June 29,1979 s

7008100 h3 h

a 1,

INTRODUCTION By letters dated March 14, 1979 and June 26,1979, 'nd application dated June 1, 1979, Jersey Central Power & Light Company (the lice-:ne) requested a change to Provisional Operating License No. DPR-16 for the ester Creek Nuclear Generating Station. The proposed change would extend thc copletion date for certain modi-ficatf or.s required to improve the level of fit a protection at the facility, and would alles changes to some of the modifications being made to irprove the level of fire protection at the facility.

DISCUSSION On March 3,1978, the Corr 11ssion issued Amendment ho. 29 to License No. JPR-16 for Oyster Creek. The amendment added a condition to the license whicn required completion of the rodifications identified in paragraphs 3.1.1 through 3.1.23 of the NRC's Fir. Protection Safety Evaluation (FPSE) for Oyster Creek dated March 3, 1978. Such...adifications are to be completed by July 1980, except for the rerote shutdown station which is aquired to be implemented by no later thar the end of the 1980 refueling outage.

By letter dated Mar:h 14, 1979, and app'ication dated June 1,1979, the licensee requested a schedule change fu completion of the proposed sprinkler systems and hose station installations required by Table 3.1 of the FPSE. In addi m n, the licensee requested that thr requirements for the installation of (1) tu thermally activated self-closing valve in the diesel generator fuel oil line be cha9ed to the installation of a separate new fuel oil line to Diesel Generator No. E @

manual isolation valves in both lines; (2) a halon system be changrd to an automatic water spray system for the cable spieading room; (3) the water spray system, item 3.1.6 of the FP3E, be changed to an automatic sprinkler system in the south end of the turbine building basement; and (4) the sprinkler system in the fire water pu p house be changed to a pre-action sprinkler system inside the house and a deluge system outside the building.

EVALUATION By letter dated March 14, 1979, the licensee requested a limited extension of the scheduled completion dates for item 3.1.7, Sprinkler Systems and item 3.1.0, Hose Stations. The reason provided by the licensee for not meeting the schedule was due to the difficulting in obtaining qualit *ed vendors to perfom the modi-fications. The vendors have been selected and the rnodifications are being installed and the time lost in the bidding c'ocess requires extending tne originally scheduled completion dates.

The specific modifications for which the licensee reques+s the cmpletion dates to be extended ara as follows:

3.1.7 Sprinklar Systems Automatic sprinkler systems will be added to the follcwing areas:

(1) To protect the meta' deck roof at the 119-foot level of the reacter building (5.1);

(2) To protect spent fuel pool cooling pumps (5.3);

(3 ) Above and below the suspended ceiling to protect cables above the ceiling in the monitor and change room (5.14);

(4) To protect the diesel-driven fire pumps and outside fuel oil storage tanks (5.18); and Q nouve cab. > trays which are at the ceiling level of the condenser bay alono one west wall of the turbine building (5.16).

Supervisory circuitry will be installed on sprinkler systems in the recirculation p,rp motor generator set roon (5.13).

Presently Table 3.1 specifies that the Sprinkler System installation will be completed in June 1979.

The licensee expects to complete installation of sprinkler systems (and other water systems) for (1) the Fire Water Pump House (pre-action and deluge), (2) outside of the west wall of the turbine building (deluge), (3) the turbine ouilding basement, and (4) the monitor and change areas by the June 1979 schedule. However, the installation of sprinkler rystens for the (1) upper trays in the conden;er bay, (2) reactor building elevation 119', and (3) reactor building elevation 75' in the area of the nt fuel cooling pumps are contingent upon the installation of a f.re water header in the reactor building and these sprinkler systems are scheduled to be completed later in 1979.

The installation of sprinklers at the 119' and 75' elevations of the reactor building are for area protection and protection of the spent fuel pool woling pumps on the 75' level. Other redundant systems are available for cooling of spent fuel

'n the event of a fire. No other safety-related equip"ent affecting safe shutnown is located in these areas.

The upper trays along the west wall of the condenser bay are presently protected by an existing sprinkler systm. A fire in these cables may af fect availability of emergency power; but, normal shutdown systems for the reactor would not be affected. In addition. high radiation in this areas during operation would expose the installers unnecessarily. If the installation was performed during a refueling shutdown, the radiation exposure to the installers could be reduced to very low levels.

U ty ) i

/.

i We conclude that extending the schedule for the sprinkler system completion date to September 15, 1979, except for the system extension in the condelser bay which shall be completed during the next refueling out ige, is acceptable.

3.1.9 Hose Statiens Hose stations will be installed throughout the plant to provida coverage of all safety-related areas (4.3.1.4).

Table 3.1 currently specifies that the Hose 5t ' ions installations will be completed in June 1979. The hose station installations are also dependent on the installation of the fire water headcr in the reactor building and several hose station installations are not expected to be cnnpleted by the June 1979 schedule. Fire protection Controls put in ef f ect have increased the control of combustibles and ignition sources, have required permits for welding, have restricted smokirn ireas, have included use of flame retardant materials where p.cible, and have increased the station fire brigade size from 3 to 5 members.

We have concluded that the licensee has made a conscientious effort to fulfill his connitnents and extermion of thE schedule to September 15, 1979, for completion of the hose stations is acc epta bl e.

a.l.15 Fire Pump House Fire Protection We have reviewed the alternative proposal to provide a pre-action sprinkler system within the fire pump house and a dry pipe deluge system on the fuel tanks outside in lieu of a wet pipe sprinkler system for both. We agree that the concern for possible freezing outside and due to possible loss of heat within the building warrants the use of such systems. Our original concern was for the possible loss of redundant fire pumps due to the f uel oil hazard. These alternative systems provide adeqsaie grotecticn for these areas both inside and outside the roon in view of the connitment to provide a new water supply tank and an additional fire pump in another incation away from this area. Because of this new fire water suppt, he loss of both these pumps is no longer of concern and the pr.ection is necessary for only the large oil hazard.

We conclude that this alternative to the original conmitment does not change the bases or conclusion regarding this matter as stated in the FPSE and is, therefore, acceptable.

4-5.9 Cable Spreading Roon Fire Protection We have reviewed the proposed alternative to provide a cross-zoned water spray system tracing the cable trays in the cable spreading roon instead of a gaseous halon system. We agree with the conclusion that it would be a more effective system in extinguishin3 fires in cables in open cable trays.

We conclude that this alternative to the original connitment does not chanae the bases or conclusion regarding this matter as stated in the FPSE for the Oyster Creek plant and is, therefore, acceptable.

5.16.6 Turbine Buildina Basement Sprinkler System We have reviewed the proposed alternative to provide an area sprinkler system for the south end of the turbine building basement with additional heads at areas where redundant cables come in proximity instead of a spray system. An alternate safe shutdown capability is also being provided for this area.

We find that this protection satisfactorily rerolves our concern for protection of the safety-related cables in this area against exposure fires.

We conclude that this alternative to the cornitment as identified in the FPSE does not change the bases or conclusion regarding this matter as stated in the FPSE for the Oyster Creek plant and is, therefore, acceptable.

5.17.6 Diesel Generator Fuel Oil Lines We have reviewed the proposed alternative to install a new independent fuel oil supply line and manual isolation valves so that each line cen be isolated from outside the diesel generator rooms instead of the crigi1al com,itment of thermally actuated valves in each room. We find tF3t (1) reliability of the diesel generator is increased by the independence and redundancy provided by the adlition of the new line; and (2) installatien of nanual v.lves outside these areas satis-factorily resolves our original concern for having the ability outside these areas to cut off a fire in either one of the diesel rooms from a continuing supply of fuel and still allow the redundant diesel generator to operate if necessary.

We conclude that this alternative to the original commitment does not change tre bases or conclusion regarding this matter as stated in the FPSE for the Oyster Creek plant and is, therefore, acceptable.

i ) C)

StMcRY We have concluded that the limited extension of the schedules will not significantly af fect the ability to safely shutdown the reactor in the event of a fire, that the licensee has made a conscientious effort to fulfill his commitments on schedule, that the ability to conbat fires has been improved, that the proposed changes to the modifications do not change the bases or conclusions regarding the modifications, and therefore, find the proposed amendment acceptable.

ENVIRONMENTAL CONSIDERATION We have determined that the amendment does not authorize a change in ef fluent types cr total amounts nor an increase in power level and will not result in any significant environmental impact. Having made this determination, we have further concluded that the amendment involves an action which is ingignificant from the standpoint of environmental impact and, pursuant to 10 CFR 551.5(d)(4), that an env i ronmen tal impact statement or negative declaration and environmental impact appraisal need not be prepared in connection with the issuance of this amendment.

CONCLUSION We have concluded, based on the considerations discussed above, that: (l) because the amendment does not involve a significant increase in the probability or con-sequences of accidents previously considered and does not involve a significant decrease in a safety margin, the amendment does not involve a significant hazards consideration. (2) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, and (3) such activities will be conducted in compliance with the Connission's regulations and the issuance of this amendment will not be inimical to the connon defense and security or to the health and safety of the public.

Atta c hnent :

Table 3.1

\\! ]'

p )

r. ;

TAELE 3 1 IMFLEENTATION DATES FOR LICENSEE PhCPCSED PCDIFICATIONS Item Date 3.1.1 Fire Earrie s December 1979 3.1.2 Fire Barrier Penetrations December 1W9 3.1.3 Da:pers December 1979 3.1.4 Fire Detectors D=: ember 1W9 3.1.5 Halen Suppression Systems December 1979 3.1.6 Water Spray Systems December 1W9 3.1.7 Sprinkler Systems Septenber 15,1W9"'

I 3.1.8 Carben Dioxide Suppression System December 1W9 3.1.9 tbse Stations Septenber 15, 1979 3.1.10 Agrous Film For ning Foan Completed 3.1.11 Portable Extinguishees Ccep12ted 3.1.12 Emergency &eathing A;'paratus Completed 3.1.13 Femoval of Co.eustible Material Cm:pleted 3 1.14 Transformer Dike December 1W9 3.1.15 Diesel Generator Fuel Oil Line December 1979 3.1.16 Ventilatien System Changes December 1W9 3.1.17 Less of Ventilation Alar:n-Battery Roam Ccepleted 3.1.12 Suppression System Valve control Coepleted 3.1.19 Portable &cke Femoval Equiptent Ccr:pleted 3.1.20 Alternate Water Supply to the Yard loop July 1980 3.

21 Protection Frcxn Water Datage December 1W9 3.1.22 New Ibitery focn and Rerouting BJtte"y Cables CC!tpleted l

3.1.23 Re w te &.utdown Station a eSchedule dependent on equipment availability (nnt to exceed end of 1980 refueling outage)

Except for the systen extensions in the turbine buildirg condenser bay which shall be completed during the next refueling outage.

_ _, _ _ _ _... i S 1 i"

\\

e,