05000280/LER-1980-032-03, /03L-0:on 801020,during Check of Low Heat Tracing Alarms,Circuit 2A Panel 11 Found to Have Low Amps.Caused by Damage to Heat Tracing Tape.Operation of Redundant Heat Tracing Circuit Verified & Tape Replaced

/03L-0:on 801020,during Check of Low Heat Tracing Alarms,Circuit 2A Panel 11 Found to Have Low Amps.Caused by Damage to Heat Tracing Tape.Operation of Redundant Heat Tracing Circuit Verified & Tape Replaced

ML18139A846
Person / Time
Site:	Surry
Issue date:	11/17/1980
From:	VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML18139A844	List: 05000280/LER-1980-032-03, /03L-0:on 801020,during Check of Low Heat Tracing Alarms,Circuit 2A Panel 11 Found to Have Low Amps.Caused by Damage to Heat Tracing Tape.Operation of Redundant Heat Tracing Circuit Verified & Tape Replaced 05000280/LER-1980-033-03, /03L-0:on 801024,w/unit at 100% Power,Positive Pressure of Greater That 0.05 Inches of Water Could Not Be Maintained in Control Room.Caused by Deterioration of Door Seals.Defective Doors Repaired 05000280/LER-1980-062-03, /03L-0:on 801019,w/unit at Cold Shutdown & Defueled,Pt 26.1 Showed RM-CC-105/106 Alarm Setpoint to Be Greater than Twice Background Radiation Levels.Caused by Decrease in Background Radiation Levels.Setpoints Reduced ML18139A843
References
LER-80-032-03L-03, LER-80-32-3L-3, NUDOCS 8011210535
Download: ML18139A846 (2)

LER-1980-032, /03L-0:on 801020,during Check of Low Heat Tracing Alarms,Circuit 2A Panel 11 Found to Have Low Amps.Caused by Damage to Heat Tracing Tape.Operation of Redundant Heat Tracing Circuit Verified & Tape Replaced

Event date:
Report date:
2801980032R03 - NRC Website

text

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I With the Unit at full.p:>wer:,.~:1p.cF-n1~ttii:n'r~a check of-.:lowheat tracing ala.rrris*, --Cil'.duit-21-j

((ill 1 panel 11, #2 BIT inlet, was found to have low amps. - This event is contrary to T.S.

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tracing was verifie:l operating, therefore the health and safety of the p.lblic were not affecte:l.

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I The heat tape was damaged by.iniividuals w:>rking pipe supp.:>rt nodifications IT 111 s I s1 44 47 in the [I]J] I area.

The faile:l tape was replace:l and verifie:l operable.

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ATm.CHMENT 1 SURRY POWE.R S'm.TION, UNIT 2 rx:o<ET NO:

50-281 REOOR!' ID:

80-032/03L-0 EVENT DATE: 10-20-80 TITLE of Rl~ORT:

1. E.VENTDES::RIPI'ION:

HEAT TRACING "FIULURE With the Unit at full p::,weI' and dur:ing a check of low heat tracing alanns, circuit 2A Panel 11, #2 BIT inlet, was found to have low amps.

This is contrary to T.S

• 3.3.A.4. an:l is re:i;:ortable per T.S. 6.6.2.b.(2).

2.

PIDBABLE mNSE~S:

The heat tape is intended to rna:inta:in the J:oric acid at a tanperatnre such that soluability, and hence flow, is ma:inta:ined.

'!he redundant channel of heat tape was verified operat:ing. Therefore the health and safety of the p.lblic were not affected.

3.

CAUSE

The. heat-trac:ing tape was darraged by individuals \\\\Crking pipe supp::,rt :rrodifications in the nearby area.

4

• J1.'.MEDIATE CORRECTIVE ACI'ION:

The irrrnediate cor.rective action was to verify operation of the redundant heat tracing circuit.

5.

SUBSEQJENT -CORRECTIVE ACTION:

SUbsequent Cor.rective action was to repl~e the*.cllanage:li heat tape :and verify it operable.

6.

ACTIONS TAKEN TO PREVENT RIDJRRENCE:

Administrative and organizational changes have been initiated to prevent such occurrences.

Refer to LER 80-030/03L-O, 11-4-80, Unit No.2.

7.

GENERIC IMPLICATIONS:

None.