ML20136C636
| ML20136C636 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 04/18/1977 |
| From: | John Miller METROPOLITAN EDISON CO. |
| To: | |
| References | |
| E-2, TM-0968, TM-968, NUDOCS 7910010454 | |
| Download: ML20136C636 (16) | |
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4 TMI DOCUENTS -
- DOCUMENT NO: Y ~
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COPY MADE ON _
0F DOCITcfENT PROVIDED BY .
METROPOLI, TAN, EDISON COMPANY..
Supervisor, Docu:sent Control, NRC e
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PREVENTATIV,E IMINTENAt!CE PROCEDURE E-2 ,
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(DIELECTRIC CHECK OF INSULATION, MOTORS & CAB co. "" *
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Tabie of Effective Pages
' Rwision Om8~ _.X : -
Pace Date
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Date Revision" *
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Date Revision I 4 M 51.0 ,
26.0 Y _..__. 5 2.0
... 0 27.0 *. '53.0
,'j' 1.0 .03/31/75 0 ~
54.0 2.0 03/31/75 -
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.* / 4.0 ; - 30.0 56.0 5.0 31.0 -
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11.0 ,,, 37.0 63.0 12.0 38.0 64.0 '
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14.0 40.0 15.0 41.0 67.0 16.0 42.0 68.0 17.0 43.0 69.0 -
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20.0 46.0 72.0 - .,
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22.0 48.0 ' 74.0 23.0 49.0, '
75.0' 24.0 50.0 .
- 25.0 men s pproval Unit 2 Staff Reco -
Unit 1 Staff Recommen s A: proval r-
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1 Approval CognhantYef t. Head [,
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Unit 2 PORC Recommen:s Approval ends Approval Date Y Unit 1 P.O C Recom "'
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\. ' A N Date Y ' / 0 9 0 (/ Chaltman ot PC'RC()
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PORC comments of _- .
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- THREE Mll.E ISLANO fiUCLEAR STATION - -
$; Preventative Maintenance Procedure .
4 , Generic Electnical~2 , ,- .
1.d'llECHANICAL 2. 0 TITLE. : ..'
._ . .. ELEC.TRICAL . - . 2 -DIELECTRIC CHECK OF -
INSTRUMENT
. INSULATION,' MOTORS & CABLES s:: ;< .
.F UTILITY .'..
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3.0 PURPOSE:-
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To outline" the pro'per steps required to 'dielectrically check '
motors and/or cables' at TMI. .
j NOTE: This procedure applies to all electrical equipment and. -
l- cables that 00, NOT contain solid ' state devices in their circuitry. .
4
4.0 PREREQUISITES
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4.1 Obtain control room permission, deenergize and log in accordance -
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with TMI Administrative. Procedure No.1002 (TAGGING) 4.2 Install grounding and ' test device (ground buggy) in accordance
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with generic procedure 1420-Misc.-3 (Use of Standard Grounding andTestDevice). -
5.0 PRECAUTI0llS
5.1 Insure circuit to be checked is deen,ergi:cd prior to meggering. "
. 5.2 Verify that~all protective rubber equipment and test devices
. are in safe and o'perable conditijn prior to use. .: ,
5.3 Insure that only the deenergize portion of the grounding buggy is exposed when meggering high volt ge units. .
i
- 6.0 ACCEPTANCE CRITERIA: .
.480 Volt or below 1.6 megohns or greater; 4,800'Yolt Circuits 5.0 megohms or greater. .
6.900 Volt Circuits 7.0 megohms or greater. -
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7.0 PROCEDURE
Open protective enclosure & test for voltage.
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ground..
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7.3. Energize megger and rec'ord reading shown on , meter,
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7.4 Dis'c6nnect megger, reinsulate and/or t. lose' pi~ot'dclive enclosure. . ,
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. CAUT10th Cong leads may ha've considerable residual voltage
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. 1 icft after the megger is' disconnected. ,
. l 7.5 If acceptable criteria is met, report clear of tags. If , , l
'.. ' l readings are unacceptable, notify shop foremen.
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8.0 POST 14EGGERI!1G LOG ENTRIES 8.1' Record all megger readings in inachinery history and til megger card file. -
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CIRCUIT NO. OR FEEDER NO.
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SCHEMATIC DRAWING NO. 3 0 7 [ ~ ~ / d~ 3 SREET OF l
TEST PASS . FAIL DATE C0t24ENTS NO. DESCRIPTION OF TEST Integtity cf Field Erection, Installation / /
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02 Assembly & Bolted Connection Check I o 09 Termination Integrity check V ie 10 Continuity Check V ,
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Volts Engineer Safeguards Conductor No. & Size No lSys tem Yes Nature of Circuit:/g pyy f f / ,4. f f; gy fj, e f c p py fyy jgpfyg + Remarks: Multiplier. 500 x 1 1000 x Megger Type: )4 R /r16 C-. /' h F/e' 2500 x lTestVfog 500 x 10 Megger Serial No: E- 7 2.- . Test Ef. (/./2M Date il7//74 Time ll(g p m Temp. go Humidity Lta y/o Weather ffit M 706 A AsZaIaQM INOCE 10 Min 1 Min CA - CB /d C2. dA - CC /c h CB - OC l0 z1 CA - Gnd CB - Gnd . OC - Cad . I P -N P - PN . P - PN P - Gnd , N - Gnd PN - Cnd Test By: .f / - C .7 C Witnessed By: f9-/Jf'
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. Multi >11er 500 x 1 1000 x Megger Type: f4 R m/M, d,fgk 2500 x lTestV,3~OC 500 x 10 Megger Serial No Jp oo -
Test 6[. 6/ "31.A s, __Da_t,e l lLff]_9-- _ . m=l Time l00 QM . Temp. go Ilumidity t/ d (/[g Vesther Rgg g roL A aga,T ion P 10 Min 1 Min . M - c5 /? A
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EQUIPMENT DATE //c20!7I - J-i COMPLETION REPORT -
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l CIRCUIT NO. OR FEEDER NO _ _ DATE /~ M ~ _ REV. _ _ .. SCHEMATIC DRAWING NO._ _0F __ SHEET _ DATE CottMENTS - PASS FAIL TEST DESCRIPTION OF TEST l NO. of Field Erection, Installation Integrity & Bolted Connection Check 02 Assembiv -- Ter.nination Integrity Check 09 _ Continuity Check 10 V l 7 1 M6GCYA 5 ' N __ Il
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Cable Data: Engineer Safeguards Volts Conductor No. & Size Yes No System Nature of Ci.rcuit: l Remarks:
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/ .2/-99 l Date j j e m p A. J Time Temp. ,fo l
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