ML20211A892

Special Rept 86-6:on 860724,fire Barrier Penetrations Impaired for More than 7 Days Due to Const Activities on Spds.Cable Pulling Completed & Penetrations Restored to Operable Status

ML20211A892
Person / Time
Site:	Salem
Issue date:	08/22/1986
From:	Zupko J Public Service Enterprise Group
To:	NRC OFFICE OF ADMINISTRATION (ADM)
References
86-6, NUDOCS 8610170061
Download: ML20211A892 (5)

Text

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0,PSEG Public Service Electric and Gas Company P.O. Box E Hancocks Bridge, New Jersey 08038 Salem Generating Station August 22, 1986 U. S. Nuclear Regulatory Commission Document Control Desk washington, DC 20555

Dear Sir:

SALEM GENERATING STATION LICENSE NO. DPR-75 DOCKET NO. 50-311 UNIT NO. 2 REPORT 86-6 SPECIAL REPORT This Special Report describes the planned impairment of certain fire barrier penetrations because of construction activities relating to the Safety Parameter Display System. Because the impairment exceeded seven days, this report is being submitted for informational purposes in accordance with the requirements of Technical Specification Action Statement 3.7.11.a.

Sincerely yours, J.M. Zupko, r.

General Manager-Salem Operations RSP:araa A

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' SPECIA'L REPORT NUMBER 86-6 PLANT IDENTIFICATICE:

. Salem Generating Station - Unit 2 Public Service Electric & Gas Campany Hancock's Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

. Fire Barrier Penetrations Inoperable For Greater Than Seven Days -

Planned Evolution Event Date: 07/24/86 Report Date: 08/22/86 This report was initiated by Incident Report No.86-238 CONDITIONS PRIOR TO OCCURRENCE:

/ Mode 1 - Rx Power 100 % - Unit Load 1100 MRe DESCRIPTION OF OCCURRENCE:

.This special report describes the intentional impairment of fire barriers for more than seven (7) day s. This report is being submitted for inf ormational purposes in accordance with the requirements of Technical Specification Action Statement 3.7.ll.a, which states:

With one (1) or more of the required fire barrier penetrations inoperable, within one (1) hour either establish a continuous fire watch on at least one (1) side of the affected penetration, or verify the operability of fire detectors on at least one (1) side of the inoperable fire barrier and establish an hourly fire watch patrol.

Restore the inoperable fire barrier penetration (s) to operable status within seven (7) days or, in lieu of any other report required by Specification 6.9.1, prepare and submit a Special Report to the Commission pursuant to Specification 6.9.2 within the next thirty (30) days outlining the action taken, the cause of the inoperable penetration and plans and schedule for restoring the fire barrier penetration (s) to operable status.

On July 17, 1986, penetration fire barrierb in the Unit 2 computer room were declared inoperable to permit planned construction activ ities, related to the installation of the Saf ety Parameter Display System (SPDS) . The impaired barriers wcre cable penetrations, which were opened to permit cable pulling for the SPDS. Fire Protection Impairment Permit No.86-308 was issued on July 1,1986, approving the work.

Continuous fire watches were established while the penetrations were impaired. During the impairment period Kaowool was stuffed into the penetrations as an added precaution, since it was impractical to reinstall permanent barriers. Most of the penetrations were

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l Pubhc Service Electric and Gas Company P.O. Box E , Hancocks Bridge, New Jersey 08038 Safem Generating Station August 22, 1986 r .

U. S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 .

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Dear Sir:

i SALEM GENERATING STATION /

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LICENSE NO. DPR-75 /

DOCKET NO. 50-311 UNIT NO. 2 ,

REPORT 86-6 SPECIAL REPORT /

This Special Report describes the planned impairment of certain fire barrier penetrations because of construction activities relating to the Safety Paralneter Display Systeia. Because the impairiaent exceeded seven days, this report is being subiaitted for informational purposes in accordance with the requirements of l Technical Specification Action Statement 3.7.11.a.

Sincerely yours, J. M. Zupko, r.

General Manager-Salem Operations RSP:ama -

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e-a SPECIAL REPORT NUMBER 86-6 PLANT IDElrfIFICATIMz

. Salem Generating' Station - Uni,t 2 Public Service Electric & Gas Company Hancock's Bridge, New Jersey 98938 IDElrFIFICATION OF OCCDRRENCE

. Fire Barrier Penetrations Inoperable For Greater Than Seven Days -

Planned Evolution Event Date: 97/24/ 86 Report Date: 98/22/86 This report was initiated by Incident Report No.86-238 4

erwnITrnam PRION To Ocennusmcar

/ Mode 1 - Rx Power 198 % - Unit Load 1190 MNe DESCRIPTIM OF OCCURRENCE

.This special report describes the intentional impairment of fire barriers for more than seven (7) days. This report is being submitted for informational purposes in accordance with the requirements of Technical Specification Action Statement 3.7.11.a, which states:

With one (1) or more of the required fire barrier penetrations inoperable, within one (1) hour either establish a continuous fire watch on at least one (1) side i

of the affected penetration, or verify the operability of

' fire detectors on at least one (1) side of the inoperable fire barrier and establish an hourly fire watch patrol.

Restore the inoperable fire barrier penetration (s) to operable status within seven (7) days or, in lieu of any other report required by Specification 6.9.1, prepare and submit a Special Report to the Commission pursuant to Specification 6.9.2 within the next thirty (39) days outlining the action taken, the cause of the inoperable penetration and plans and schedule for restoring the fire barrier penetration (s) to operable status.

On July 17, 1986, penetration fire barriers in the Unit 2 computer room were declared inoperable to permit planned construction activities, related to the installation of the Saf ety Parameter Display System (SPDS) . The impaired barriers were cable penetratione, which were opened to permit cable pulling for the SPDS. Fire l

Protection Lapairment Permit No.86-398 was issued on July 1,1986, approving the work.

• Continuous impaired.

fire watches were established while the penetrations were During the impairment period .Kaowool was stuffed into the penetrations as an added precaution, since it was impractical to reinstall permanent barriers. Most of the penetrations were 76 *$[ #

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SPECIAL REPORT 86-6 .

DFM RTPTION OF OCCU99RNCE: (cont 8d1 tpermanently clos,ed within seven '(7). days with Semkits, restoring them to operable status. How ev er, three (3) of the cable penetrations were still impaired on July 24, 1986, which exceeded the time limit of Technical Specification Action, Statement 3.7.11.a.

ANALYSIS OF OCCDRRENCE:

The functional integrity of the penetration fire barriers ensures that fires will be confined or adequately retarded from spreading to adjacent portions of the f acility. This design feature minimizes the possibility of a single fire rapidly involving several areas of the f acility prior to detection and extinguishment. The penetration fire barriers are a passive element in the facility fire protection program and are subj ect to periodic inspections. The impairment of the cable penetration fire barriers was part of a planned evolution, and credit is taken for fire watches in effect. The establishment of a fire watch in conjunction with the operable fire detection equipment assures that a fire on either side of the fire barrier would be detected and extinguished before it could involve the adjacent area.

This occurrence therefore involved no undue risk to the health or safety of the public. However, because three (3) cable penetration fire barriers were not restored to operable within the seven (7) day s specified by Technical Specification 3.7.11, the occurrence became reportable as of July 24, 1986, and this special report is therefore submitted pursuant to the requirements of Technical Specification 6.9.2.

CORRECTIVE ACTIOR1 The cable pulling was completed, and the penetrations restored to an operable status by installing Semkits. The action statement was terminated on August 19, 1986. Independent review by Station Quality Assurance personnel verified that the affected penetrations were adequately restored. It should be noted that other fire barrier penetrations will be similarly impaired to permit additional cable pulling in support of SPDS installation.

Ge era Mana ~ r-Salem Operations RSP SORC Mtg 86-066

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