ML20011F349

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Rev 3 to Preventive Maint Procedure PM 9.5-41, Testing of Molded Case Circuit Breaker Overloads
ML20011F349
Person / Time
Site: 05000000, Haddam Neck
Issue date: 01/26/1983
From:
CONNECTICUT YANKEE ATOMIC POWER CO.
To:
Shared Package
ML20008D796 List:
References
FOIA-89-404 PM-9.5-41, NUDOCS 9003050182
Download: ML20011F349 (6)


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( '.i ? TESTING OF MOI.DED CASE CIRCCIT BREAKER

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on any nolded case circuit breaker at Connecticut Tankee, some p

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sher sign the Checkof f to achaowledge that involved reactor operstbaal personnel are aware of what safety related equipment c.'

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equipment is ragtired to be in service while a breaker is p

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4.4 Teor instruments shall be in current calibration.

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Ensure =ct or er.,ntroller or breaker asse:bly is retur ed to 21.C.C. and locked in a f t er cor.plet ic.n of t er.t ing.

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.' 4 6.0 PROCEDRE.

6.1 - Close the breal.er.-

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.1 6.2 Connect test leads te phase. A and.spp1:r ? ^0.* f t ue rat e('

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current of the brealer.

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3 6.3 F.ecord tr'; t t.e.sn Chech List and conparc *.-ith tele in g'{:.

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6.5 Apply 1500'; of the rated current of the 'ereaker to phare A.

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6.7 Disconnect test leads f rom phase A.

f,.y ik 6.8 Wait at.least 5 minut es and then repeat Steps 6.2 throuCh

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6.7 phase B.

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.[t 6.9 - Wa it a t least 5 ininutes and then repest Steps 6.; through L. -

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7.9 Test current 1500,'. applica per Step +2.1.

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7.10 Trip time is less than one second.

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sf 7.12 Breaker closed. 1cada connected to phase B.

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7.18 3reaker closed leads :ennected to phase C. and 30'n tort :urrent arpate! to phase C per Sters

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4 7.21 Tei,t current 13 *N% applied per step 6.9.

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7.22 Trip tirno is less than one second.

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7.24 Equi;.ent operability verified per Step 4.6.

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i 7.25 Involved reactor operational personnel have been inforned of what breaker is beint-re-L' turned to service per Step i.1 7-p

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