ML18153A028

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LER 96-006-00:on 960618,failed to Apply anti-corrosion Coating to Station Battery 2B.Caused by Procedural Error. Applied anti-corrosion Coating to Batteries & Revised TS 4.6.C.1.f Re Battery Coating requirements.W/960717 Ltr
ML18153A028
Person / Time
Site: Surry Dominion icon.png
Issue date: 07/17/1996
From: Christian D
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
96-366, LER-96-006, LER-96-6, NUDOCS 9607250235
Download: ML18153A028 (5)
v • d • e


Text

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."'* e 10CFR50.73 Virginia Electric and Power Company

\

Surry Power Station*

5570 Hog Island Road Surry, Virginia 23883 July 17, 1996 U.S. Nuclear Regulatory Commission Serial No.: 96-366 Document Control Desk SPS:VLA Washington, D. C. 20555 Docket No.: 50-280 50-281 License No.: DPR-32 DRP-37

Dear Sirs:

Pursuant to Surry Power Station Technical Specifications, Virginia. Electric and Power Company hereby submits the following Licensee Event Report applicable to Surry Power Station Units 1 and. 2.

REPORT NUMBER 50-280/50-281 /96-006-00 This report has been reviewed by the Station Nuclear Safety and Operating Committee and will be forwarded to the Management Safety Review Committee for its review.

Enclosure copy: Regional Administrator 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 M. W. Branch NRC Senior Resident Inspector i Surry Power Station i 9607250235 9607i7 PDR ADOCK 05000280 S PDR

NRG FORM 366 e U.S. NUCLEAR REGULATORY COMMISSION eAPPROVED BY 0MB NO. 3150-0104

. (5-92) EXPIRES 5/31/95 ESTIMATED BURDEN PER RESPONSE TO COMPLY WITH THIS INFORMATION COLLECTION REQUEST: 50.0 HRS. FORWARD COMMENTS REGARDING BURDEN ESTIMATE TO THE INFORMATION LICENSEE EVENT REPORT (LER) AND RECORDS MANAGEMENT BRANCrl (MNBB 7714). U.S.

(See reverse for required number of digits/characters for each block)

NUCLEAR REGULATORY COMMISSION. WASHINGTON. DC 20555*

0001. AND TO THE PAPERWORK REDUCTION PROJECT (3150-0104).

OFFICE OF MANAGEMENT AND BUDGET. WASHINGTON. DC 20503.

I FACILITY NAME (1) DOCKET NUMBER (2)

II PAGE(3)

Surry Power Station, Unit 1 05000 - 280 1 OF4 TITLE(4)

Station and Emergency Diesel Generator Battery Connections Not Coated With Anti-corrosion Material Due to Procedural Error EVENT DATE 5) LER NUMBER (6) REPORT DATE (7) OTHER FACILITIES INVOLVED (Bl MONTH DAY YEAR YEAR SEQUENTIAL REVISION MONTH DAY YEAR FACILITY NAME DOCKET NUMBER NUMBER NUMBER Surrv Unit 2 05000* 281 FACILITY NAME DOCKET NUMBER 06 18 96 96 -- 006 -- 00 07 17 96 05000

  • OPERATING THIS REPORT IS SUBMITIED PURSUANT TO THE REQUIREMENTS OF 10 CFR:(Check one or more) (11)

MODE (9) N 20.402(b) 20.405(c) 50.73(a)(2)(iv) 73.71(c)

POWER 20.405(a)(1 )(i) 50.36(c)(1) 50.73(a)(2)(v) 73.71 (c)

LEVEL (10) 100% 20.405( a)( 1)(ii) 50.36(c)(2) 50.73(a)(2)(vii) OTHER 20.405(a)(1 )(iii) X 50.73(a)(2)(i) 50.73(a)(2)(viii)(A) (Specify in Abstract below and

): ".

"":-.':£"

  • ..*. 20.405(a)(1 )(iv) 50.73(a)(2)(ii) 50. 73(a)(2)(viii)(B) in Text, NRC Form 366A)

"  :?} 20.405(a)(1)(v) 50.73(a)(2)(iii) 50.73(a)(2)(x)

LICENSEE CONTACT FOR THIS LER (12 NAME D. A. Christian, Station Manaqer I (757r357~31184ing Area Code)

COMPLETE ONE LINE FOR EACH COMPONENT FAILURE DESCRIBED IN THIS REPORT (13)

CAUSE SYSTEM COMPONENT MANUFACTURER REPORTABLE CAUSE SYSTEM COMPONENT MANUFACTURER REPORTABL

  • TONPRDS ETONPRDS I*

SUPPLEMENTAL REPORT EXPECTED (14) I EXPECTED I MONTH I DAY I YEAR I YES flf ves comolete EXPECTED SUBMISSION DATE) IX I NO I SUBMISSION DATE (15)

I I I ABSTRACT (Limit to 1400 spaces, i.e., approximately 15 single-spaced typewritten lines) (16)

On June 18, 1996, while processing a Preventative Maintenance (PM) deferral request to postpone the refueling PM for intercell connection cleaning and lubrication, it was determined that anti-corrosion coating had not been re-applied to Station Battery 28. At 1249 hours0.0145 days <br />0.347 hours <br />0.00207 weeks <br />4.752445e-4 months <br /> on June 19, 1996, with Units 1 and 2 at 100% power, it was determined that verbatim compliance with TS 4.6.C.1.f. and TS 4.6.0.1.e had not been achieved with regard to the application of anti-corrosion coating. A 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> action statement was entered in accordance with TS 4.0.3 for not completing the TS surveillance requirements to coat Station Battery 1B and Emergency Diesel Generator (EOG)

Batteries 1 , 2, and 3. The anti-corrosion coating was applied to intercell connections on Station Batteries 1B and 28 and EOG Batteries 1 , 2, and 3. The 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> action statement was exited at 1715 hours0.0198 days <br />0.476 hours <br />0.00284 weeks <br />6.525575e-4 months <br />.

The surveillance procedures verified operability of the batteries and soundness of the electrical connections by measuring the connection resistance, as well as inspecting the anti-corrosion coating. Therefore, the station batteries and the EOG batteries remained fully operable to perform their safety related functions. The health and safety of the public were not affected at any time during this time period.

A revision to TS 4.6.C.1. f and TS 4.6. 0.1.e will be submitted to the NRG to clarify the battery connection coating requirements. For consistency with the Improved Technical Specifications, this submittal will ensure there is a sound electrical connection without requiring that additional coating be applied.

This event is being reported pursuant to 10 CFR 50.73(a)(2)(i)(B) for operation in a condition prohibited by TS.

NRC FORM 366 (5*92)

e e

  • ========================;;==================i1 NRG FORM 366 (5-92)

U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY 0MB NO. 3150-0104 EXPIRES 5/31/95 ESTIMATED BURDEN PER RESPONSE TO COMPLY WITH THIS INFORMATION COLLECTION REQUEST: 50_0 HRS. FORWARD COMMENTS REGARDING BURDEN ESTIMATE TO THE INFORMATION LICENSEE EVENT REPORT (LER) AND RECORDS MANAGEMENT BRANCH (MNBB 7714), U.S. NUCLEAR REGULATORY COMMISSION. WASHINGTON, DC 20555-0001, AND TO THE PAPERWORK REDUCTION PROJECT (3150-0104), OFFICE OF (See reverse for required number of digits/characters for each block) MANAGEMENT AND BUDGET. WASHINGTON, DC 20503.

FACILITY NAME 111 DOCKET NUMBER (2) LER NUMBER (6) PAGE (3)

YEAR SEQUENTIAL NUMBER REVISION NUMBER Surry Power Station, Unit 1 05000 - 280 96 - 006 - 00 2oF4 TEXT (If more space is required. use additional copies of NRC Form 366A) (17)

1.0 DESCRIPTION

OF THE EVENT On June 18, 1996, while processing a Preventative Maintenance (PM) deferral request to postpone the refueling PM, Exide Stationary Battery lntercell Connections Cleaning and Lubrication, O-ECM-0102-02, it was determined that anti-corrosion coating had not been applied to the Station Battery 28 [EIIS-EJ, BTRY] intercell connections. However, Electrical Periodic Test, 2-EPT-0106-02, Main Station Battery 28 Refueling Service Test, had been satisfactorily performed on Station Battery 28. In accordance with this periodic test procedure, the anti-corrosion coating had been inspected and determined to be acceptable.

Procedures 0/1/2-EPT-0106-01/02/03 are in place to comply with Technical Specification (TS) 4.6.C.1.f and TS 4.6.D.1.e. Although the procedures do not ensure verbatim compliance with the TS, they do satisfy the intent of TS 4.6.C.1.f and TS 4.6.D.1.e which is to ensure there is a sound electrical connection. Specifically, Surveillance Requirements for Station Batteries, Test and Frequencies TS 4.6.C.1.f, states "During refueling outages connections shall be checked for tightness and anti-corrosion coating shall be applied to interconnections." TS 4.6.D.1.e contains similar requirements for the Emergency Diesel Generator (EOG) batteries [EIIS-EK, BTRY] for each refueling. The periodic test procedures do not specifically direct that anti-corrosion coating be applied. Instead, these procedures require inspectiQn of the existing coating to ensure the coating is acceptable and no coating degradation has- occurred. These procedures require verification of connection tightness.

At 1249 hours0.0145 days <br />0.347 hours <br />0.00207 weeks <br />4.752445e-4 months <br /> on June 19, 1996, with Units 1 and 2 at 100% power, it was determined that verbatim compliance with TS 4.6.C.1.f. and TS 4.6.D.1.e had not been achieved with regard.to application of anti-corrosion coating. A 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> action statement was entered in accordance with TS 4.0.3 for not completing the TS surveillance requirements for Station Battery 1B and EOG Batteries 1, 2, and 3. The anti-corrosion coating was applied to intercell connections on Station Batteries 1B and 28 and EOG Batteries 1, 2, and 3. Station Batteries 1A and 2A had been coated during their respective refueling outages and therefore met the TS requirements.

The 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> action statement was exited at 1715 hours0.0198 days <br />0.476 hours <br />0.00284 weeks <br />6.525575e-4 months <br />.

This event is being reported pursuant to 10 CFR 50.73(a)(2)(i)(B) for operation in a condition prohibited by TS.

NRC FORM 366A (5-92)

---=--~----------

i

" NRC FORM 366 (5-92)

  • U.S. NUCLEAR REGULATORY COMMISSION e
. rr==:===,:,:::=':"===========c======':""":"="':::'::~=:'='~==::=:"=::="':'::'::':'::':':"ir====:':===~======:=::'='==:7='====:;==:==-=======;i APPROVED BY 0MB NO. 3150-0104 EXPIRES 5/31/95 ESTIMATED BURDEN PER RESPONSE TO COMPLY WITH THIS INFORMATION COLLECTION REQUEST: 50.0 HRS. FORWARD

! COMMENTS REGARDING BURDEN ESTIMATE TO THE INFORMATION j LICENSEE EVENT REPORT (LER) AND RECORDS MANAGEMENT BRANCH (MNBB n14), U.S. NUCLEAR

-:! REGULATORY COMMISSION, WASHINGTON. DC 20555-0001. AND TO THE PAPERWORK REDUCTION PROJECT (3150-0104), OFFICE OF (See reverse for required number of digits/characters for each block) MANAGEMENT AND BUDGET. WASHINGTON, DC 20503.

FACILITY NAME (1) DOCKET NUMBER (2) LERNUMBER(6) PAGEl3l YEAR SEQUENTIAL NUMBER REVISION NUMBER Surry Power Station, Unit 1 05000 - 280 96 - 006 - 00 3 OF 4 TEXT (If more space is required. use addibonal copies of NRC Form 366A) (17) 2.0 SIGNIFICANT SAFETY CONSEQUENCES AND IMPLICATIONS The surveillance procedures verified operability of the batteries and soundness of the electrical connections by measuring the connection resistance, as well as inspecting the anti-corrosion coating. This process is consistent with the requirements of the Improved* Technical Specifications. The station batteries and the EDG batteries remained fully operable to perform their safety related functions. Therefore, the health and safety of the public were not affected at any time during this time period.

3.0 CAUSE OF THE EVENT The cause of this event is a procedural error in that verbatim TS compliance is not reflected in the refueling surveillance procedures. 0/1/2-EPT-0106-01/02/03 are in place to comply with TS 4.6.C.1.f and TS 4.6.D.1.e. Although the procedures do not ensure verbatim compliance with the TS, they do satisfy the intent of TS 4.6.C.1.f and TS 4.6.D.1.e which is to ensure there is a sound electrical connection. Specifically, Surveillance Requirements for Station Batteries, Test and Frequencies, TS 4.6.C.1.f, states "During refueling outages connections shall be checked for tightness and anti-corrosion coating shall be applied to interconnections." TS 4.6.D.1.e contains similar requirements for the EDG batteries for each refueling. The periodic test procedures do not specifically direct that anti-corrosion coating be applied. Instead, these

  • procedures require the inspection of the existing coating to ensure the coating is acceptable and no coating degradation has occurred.

The TS requirements to apply the anti-corrosion coating to battery intercell connections are part of the surveillance test for verification of the acceptability of a sound electrical connections.

The TS acceptance criteria for this test states that the test is satisfactory if new test data indicates no sign of abuse or degradation. The procedures developed for the TS testing utilize resistance checks and visual inspection to verify satisfactory application of anti-corrosion coating .. These tests and the associated acceptance criteria establish the need for application of new anti-corrosion coating. The testing methods and acceptance criteria for the connections are consistent with ANSI IEEE - 450 and nuclear industry practices.

NRC FORM 366A (5-92)

II e e

  • IJ ,

,r.===========================;;================,i NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY 0MB NO. 3150-0104 II (5-92) EXPIRES 5/31/95 ESTIMATED BURDEN PER RESPONSE TO COMPLY WITH THIS INFORMATION COLLECTION REQUEST: 50.0 HRS. FORWARD COMMENTS REGARDING BURDEN ESTIMATE TO THE INFORMATION LICENSEE EVENT REPORT (LER) AND l~EC:ORDS MANAGEMENT BRANCH (MNBB n14). U.S. NUCLEAR REGULATORY COMMISSION. WASHINGTON. DC 20555-0001, AND TO THE PAPERWORK REDUCTION PROJECT (3150-0104). OFFICE OF (See reverse for required number of digits/characters for each block) MANAGEMENT AND BUDGET. WASHINGTON. DC 20503.

FACILITY NAME 111 DOCKET NUMBER (2) LERNUMBER(6) PAGE(3l YEAR SEQUENTIAL NUMBER REVISION NUMBER Surry Power Station, Unit 1 05000 - 280 96 - 006 - 00 4oF4 TEXT (If more space is required, use addiHonal copies of NRC Form 366A) (17) 4.0 IMMEDIATE CORRECTIVE ACTIONS A Deviation Report was submitted.

On June 19, 1996, at 1249 hours0.0145 days <br />0.347 hours <br />0.00207 weeks <br />4.752445e-4 months <br />, a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> action statement was entered in accordance with TS 4.0.3 for not completing the verbatim TS surveillance requirements for Station Battery 1B and EOG Batteries 1, 2, and 3 with regard to application of anti-corrosion coating. The anti-corrosion coating was applied to the batteries and the 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> action statement was exited at 1715 hours0.0198 days <br />0.476 hours <br />0.00284 weeks <br />6.525575e-4 months <br />.

5.0 ADDITIONAL CORRECTIVE ACTIONS A revision to TS 4.6.C.1.f and TS 4.6.D.1.e will be submitted to the NRG to clarify the battery connection coating requirements. For consistency with the Improved Technical Specifications, this submittal will ensure there is a sound electrical connection without requiring that additional coating be applied.

6.0 ACTIONS TO PREVENT RECURRENCE The application of the anti-corrosion coating to the intercell connections of the batteries will be added to the upcoming Unit 1 refueling outage scope. If approval of the proposed TS revision is received before the upcoming refueling outage, the application of the coating* will be deleted from the outage scope.

7.0 SIMILAR EVENTS None.

8.0 ADDITIONAL INFORMATION None.

NRG FORM 366A (5-92)

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