ML20004D577
| ML20004D577 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 12/11/1980 |
| From: | Steffes C COMMONWEALTH EDISON CO. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML20004D568 | List: |
| References | |
| LER-80-031-03L-03, LER-80-31-3L-3, NUDOCS 8106090546 | |
| Download: ML20004D577 (1) | |
Text
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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
( 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 ;
requires a setpoint of greater .than or equal to 850 psig.
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je;3y g pressure switches were found to trip within the Technical Specification Limit.
g Thus, the one out of two taken twice logic system would have isolated the main O c l l
steam system had the need arisen.
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Lo I s I 1 SUB ode $ ODE CODE SU3C E COMPONENT CODE ODE 10191 8 9 lC lD l@ W@ W@ il lfl lS lT lR 10 11 12 13 lU l@ W@ W@
18 OCCURRENCE 19 REPORT 20 REVISION 7 SEOUE NTI AL NO.
CODE TYPE HEPOHT NO, LE R
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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.
11101] The cause of this occurrence P re s s u re l
. i l 261-300 was recalibrated to 870 psia and was tested satisfactorilv.
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l1 ;7; l switch 1-261-30D is model number B2T-Al2SS manufactured by Barksdale.
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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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