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| {{Adams
| | #REDIRECT [[05000254/LER-1980-031-03, /03L-0:on 801124,pressure Switch PS-1-261-30D Tripped Low During Main Steam Line Low Pressure Calibr Test. Caused by Instrument Setpoint Drift.Pressure Switch Recalibr & Tested Satisfactorily]] |
| | number = ML20004D577
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| | issue date = 12/11/1980
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| | title = LER 80-031/03L-0:on 801124,pressure Switch PS-1-261-30D Tripped Low During Main Steam Line Low Pressure Calibr Test. Caused by Instrument Setpoint Drift.Pressure Switch Recalibr & Tested Satisfactorily
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| | author name = Steffes C
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| | author affiliation = COMMONWEALTH EDISON CO.
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| | addressee name =
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| | addressee affiliation = NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
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| | docket = 05000254
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| | license number =
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| | contact person =
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| | document report number = LER-80-031-03L-03, LER-80-31-3L-3, NUDOCS 8106090546
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| | package number = ML20004D568
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| | document type = LICENSEE EVENT REPORT (SEE ALSO AO,RO), TEXT-SAFETY REPORT
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| | page count = 1
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| }}
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| | |
| =Text=
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| {{#Wiki_filter:"~
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| - LICENSEE EVENT REPORT
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| CONTROL DLOCK: l l l l l('l lh (PLEASE PRINT CR TYPE ALL EEQUIRED INFORMATION!
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| 68 69 EVENT DATE 74 75 FIEPORT OAT E 80 8 68 DOCKET NUMSER EVENT DESCRIPTION AND PROBADLE CONSEQUENCES h 1 O l2j j While performin'g QlS-20, Main Steam Line Low Pressure Calibration Test, pressure l
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| ( switch PS-1-261-30D tripped at 843 psig. Technical Specification Tabic 3.2-1 Io 131 i The three redundant l g s , ,, j ;
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| requires a setpoint of greater .than or equal to 850 psig.
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| g I
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| je;3y g pressure switches were found to trip within the Technical Specification Limit.
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| g Thus, the one out of two taken twice logic system would have isolated the main O c l l
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| steam system had the need arisen.
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| 18 OCCURRENCE 19 REPORT 20 REVISION 7 SEOUE NTI AL NO.
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| CODE TYPE HEPOHT NO, LE R
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| _. EVENT YEAR
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| 35 36 l0l0l0l0l 3d 40 di 42 43 44 4; CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h Pressure switch PS l is instrument setooint drlft.
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| 11101] The cause of this occurrence P re s s u re l
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| . i l 261-300 was recalibrated to 870 psia and was tested satisfactorilv.
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| [
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| l1 ;7; l switch 1-261-30D is model number B2T-Al2SS manufactured by Barksdale.
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| l 1:131 l I
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| E0 l i l41 1 7 8 9 DISCOVERY DESCRIPTION OTHERSTATUS l$ 0 FY STA S % POWEH I flA I La__J@l Routine Survetiiance E3 l H l@ l 0l 0 l 0 lhl_
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| A itVITY CO TENT LOCATION OF RELEASE RELE ASEO OF FiELE ASE AMOUNT OF ACTIVITY l HA l l flA 80 7
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