05000255/LER-1979-017, Forwards LER 79-017/03L-0

Forwards LER 79-017/03L-0

ML18043A649
Person / Time
Site:	Palisades
Issue date:	05/04/1979
From:	Hoffman D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML18043A651	List: 05000255/LER-1979-017, Forwards LER 79-017/03L-0 05000255/LER-1979-017-03, /03L-0 on 790404:while Taking Battery Voltage Readings,Two Cells in Station Battery 2 Burst Due to Explosion of Hydrogen Inside Cells.Battery Taken Out of Svc. Two Replacement Cells Ordered
References
79-017, 79-17, NUDOCS 7905080537
Download: ML18043A649 (2)

LER-1979-017, Forwards LER 79-017/03L-0

Event date:
Report date:
2551979017R00 - NRC Website

text

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consumers Power company General Offices: 212 West Michigan Avenue, Jackson, Michigan 49201

• Area Code 517 788-0550 May 4, 1979 Mr James G Keppler Office of Inspection and Enforcement Region III US Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 DOCKET 50-255 - LICENSE DPR PALISADES PLANT -

LER 79-017 On the reverse side is LER 79-017 which is reportable under Technical Specification 6.9.2.b.2.

David P Hoffman (Signed)

David P Hoffman Assistant Nuclear Licensing Administrator CC Director, Office of Nuclear Reactor Regulation Director, Office of Inspection and Enforcement 7905080531

Palisades NRC FORM366 17*771 U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL BLOCK: I I I G)

(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6

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8 9

LICENSEE CODE 14

~5 LICENSE NUMBER 25 26 LICENSE TYPE 30 57 CAT 58 CON'T [ill]

7 8

~~~~~~ ~Io I 5 I o I o 1 o 12 f5 15 GI o 14 I o I 417 I 9 I© I o I 51 o 14 I 1 I 9 I@

60 61 DOCKET NUMBER 6EI 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION ANO PROBABLE CONSEQUENCES @

[§JI] I While taking battery voltage readings during an equalizing battery charge,1

()):!]I two cells in No. 2 station battery burst as a_result of the expJosion of [IIrJ I hydrogen inside the cells.

The battery was subsequently taken oµt of

()))) I service tci permit.jumpering of the defectiye cells.

Both battery chargers I (TI[] I for battery bus No. 2 were in operation as required by TS 3. 7. 2. 4.

This IIIIJ 1 event is reportable per TS 6.9.2.b.2.

Battery voltage and capacity with

((!!] I two jumpered cells is within specifications.

(Gould batt. Type FPS 17).

I 7

8 9 IIEl 7

8 SYSTEM CODE

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9 10 C-;\\ LEA/RO LVENTYEAR

\\:,:/ REPORT 17 I 9 I NUMBER 21 22

CAUSE

CAUSE COMP.

CODE SUBCODE COMPONENT CODE SUBCODE L!J@ 12J@ I BI AIT IT fR I YI@ l!J@

11 12 13 18 19 SEQUENTIAL OCCURRENCE REPORT REPORT NO.

CODE TYPE VALVE SU8CODE l!J@

20 I I Io 1111 I 1......-1 10 f 3 I

~ l=l 23 24 26 27 28 29 30 31 ACTION FUTURE EFFECT SHUTDOWN t::::;.,

ATTACHMENT NPRD-4 PRIME COMP, TAKEN ACTION ON PLANT METHOD HOURS ~ SUBMITTED FORM :;ue, SUPPLIER UJ@W@ U.J@

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33 34 35 36 37 40 41 42 43

CAUSE

DESCRIPTION ANO CORREC'rlVE ACTIONS @

REVISION NO.

~

32 COMPONENT MANUFACTURER 80 I G 11 18 15 '

44 47 o::J]J I A test lead being used to take the voltage readings fell and struck a batt~ry IIIlJ connector, causing a spark which ignited the hydrogen.

To prevent recurre,ce, DJ)) the location where readings are taken will be changed.

Additionally,

[)))) I explosion~proof vent caps if available, will be procured and installed on o::m I the station battery cells.

Two replacement cells have been ordered.

7 8

9 FACILITY

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STATUS

% POWER OTHER STATUS \\.:::;:I ITJI] L!J@ I l IO IO l@._I _N.;..../A ____

80 METHOD OF A

DISCOVERY DISCOVERY DESCRIPTION ~

L!J~~l __

O~p_e_r_a_t_o_r __

o_b_s_e_r_v_a_t_i_o_n ____________ ___.

7 8

9 10 12 13 44 ACTIVITY CONTENT

~

RELEASED OF RELEASE I AMOUNT OF ACTIVITY o::fil ~@

W@I NA I

7 8

9 10 11 44 45 46 80 I N/A LOCATION OF REL.EASE @

45 80 PERSONNEL. EXPOSURES Q

~U'eJBER O ~;r'2;E t;.:;\\ oesCRllrP>_K ~

[I[2J I I. I l~~~

.... *-------------------------J 7

8 9

11 12 13 PERSONNEL INJURIES

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80 aiurere~

DESC~7'R_N6 o:::TI] I I I l@).__ ____

~--------------~--------------~--------J 7

8 9

11 12 80 LOSS O!' OR DAMAGE TO FACILITY '43' TYPE

DESCRIPTION

v::;J DJ)) L.gj~.__~N~A:.-___________________________ ~---------------~

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9 10 BO PUBLICITY C\\

ISSUED~ DESCRIPTION~

[]I£J L!J~---N~/_A __________________________ __,..._______

I I I I I I I I I I I I I 7

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. 68 :* 69 80 NRC USE ONLY

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