ML19031A920

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Improper Use of Test Leads
ML19031A920
Person / Time
Site: Salem  PSEG icon.png
Issue date: 01/03/1977
From: Schneider F
Public Service Electric & Gas Co
To: O'Reilly J
NRC/IE, NRC Region 1
References
LER 1976-016-01
Download: ML19031A920 (4)
v • d • e


Text

Public Service Electric,and Gas Company 80 Park Place. Newark, N.J. 07101 Phone 201 /622-7000 Frederick W. Schneider Vice President-Production Mr. James P. O'Reilly Director of USNRC January 3, 1977 Off ice of Inspections and Enforcements Region l 631 Park Avenue King of Prussia, Pennsylvania 19406

Dear Mr. O'Reilly:

LICENSE.NO. DPR-70 DOCKET NO. 50-272 REPORTABLE OCCURRENCE 76-16/3L Pursuant to the requirements of Salem Generating Station Unit No. 1 Technical Specifications, Section 6.9.1, we are submitting Licensee Event Report for Reportable Occurrence 76-16/3L.

This report is required within thirty (30) days of the occurrence.

This report replaces Reportable Occurrence 76-16/lP which was incorrectly determined to be an LER and inadvertently reported on December 1, 1976.

CC Director, Office of Inspection and Enforcement (30 copies)

Director, Office of Management Information and Program Control (3 copies)

The Energy People 288 95-0883 (2500) 4.75

  • "Report Number:

Report Date:

Occurrence Date:

Facility e-16/3L 12/16/76 12/03/76 Salem Generating Station

  • Public Service Electric & Gas Company Hancocks Bridge, New Jersey 08038 IDENTIFICAT.ION OF OCCURRENCE:

Improper use of test leads.

CONDITIONS PRIOR TO OCCURRENCE:

Mode 3 operation, Plant pressure 2235 psig, Plant temperature 547°F.

DESCRIPTION OF OCCURRENCE:

On 12/3/76, a safety injection signal was initiated due to Hi Steam Line Differential Pressure.

I&C personnel were in the process of connecting a brush recorder to No. 12 Steam Generator Pressure Channel III. (Details of the ECCS actuation will be contained in the 90-day special report sub-mitted.pursuant to Technical Specification 6.9.2(a).)

The Shift Supervisor implemented EI I-4.2, Recovery From Inadvertent Safety Injec-tion, and plant conditions were returned to normal.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

The cause of this occurrence was the use of grounded type test leads rather than the required ungrounded type.

All brush recorders use the ungrounded type test leads which are tagged "For Brush Recorder Only".

A Technician attempted to use grounded visicorder leads which were not tagged.

ANALYSIS OF OCCUR~NCE:

Operating pressure and temperature was 2235 psig/537°F before and 2260 psig/539°F after the safety injection.actuation which is within the limitation of the reactor coolant system.

With the Boron Injection Ta.nk boron concentration less than that requires by S.T.S. paragraph 3.5.4.l(b)

S. T. S. Action. Statement 3. 5. 4.* 1 was implemented.

No damage occurred to the reactor coolant system or the emergency core cooling system and at no time was there any hazard to the general public or site personnel.

CORRECTIVE ACTION:

All brush recorders have been modified to use the grounded type leads which are interchangeable with visicorders.

An inter-shop letter is being circulated among all I&C Technicians and Supervisors requiring them to initial.it, signifying knowledge of the changes made.

FAILURE DATA:

This is the first occurrence of this type.

B. Canfield Manager -

SORC Meeting No. ~~~~~~~~

122-76

LICENSEE EVENT REPORT.

. CCNTROC. BL.CCX I..._-_........,I __..__._1.........

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@Ji] I During *Mode 3 operation, a safety injection signal Was. initiated.due to Hil 1

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@:§] Steam Line Differential Pressure.

I&C ersonnel were in the rocess of

1. 8

@El connecting a brush recorder to No. 12 Steam Generator pressure Channel III 7.8.

@lil I No. 12 Steam Generator redundant Steam Pressure channel was available thropgh-7 a~

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@1!]1out this* event.

Details of the ECCS actuation will be contained in the I'

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  • 1 48 CAUSE CESC1illPTl0N

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9The cause of this occurrence was the use of ~rounded type test J eads rath;f

@J:!J I than the required ungroupded type.

AJJ brush recgrders use the 1mgr01mdedl 1

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[ID I type test leads whic_h are tagged "For Brush Recorder Only".

A Technician I 1

19 ao "ACU.. JTV*

STATUS

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OTMeR STATIJS IIfil LQJ.

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10 12 13 "CIAM Cll' ACTIVITV C:Ol'ITl!NT ACUASEO OF Rlti...aASI!

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10 It PERSONNEi. exPOStJAES NUMMR*

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A00tT10NAL. FAC'TOAS QJ!lt EVENT DESCRIPTION AND CAUSE DESCRIPTION (Continued On Page 2) 1 11 I

so III!!~------------------------------------------------------------,,.,;

1 aa so NAME: _________ B_. _* _E_._c_a_n_f__.i_e_l_d_*....... __........

'""40Ne: (609) 365-7000 Ext.Salem-52

    • ~LER 76-16/3L

Corrective action has been taken to modify the brush recorders to use any type of test~_leads. Recorders have also been marked and color coded.

This was the first occurrence of this type. (76-16/3L).

CAUSE DESCRIPTION (Continued) attempted to use. grounded "Visicorder" leads which were not tagged.

All brush recorders have now been modified to use the grounded type leads which are now interchangeable with the visicorder.

  • An inter-shop letter is being prepared that discusses this change.

This letter will be circulated among all Technicians and Technical Assistants requiring them to initial it, signifying knowledge of the changes made.

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