ML20084J584

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Telecopy Ao:On 721118,during Calior,Four Main Steam Line Low Pressure Switches Found W/Trip Setting Exceeding Tech Specs Livel.Switches Recalior
ML20084J584
Person / Time
Site: Quad Cities Constellation icon.png
Issue date: 11/21/1972
From: Kalivianakis N
COMMONWEALTH EDISON CO.
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20084J579 List:
References
NUDOCS 8305180303
Download: ML20084J584 (1)


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NORMAL QUARTERLY CALIBRATION OF THE CONVENSER LOW VACUUM AND MAIN STEAM LINE LOW PRESSURE SWITCHES ON UNIT 2 4 SWITCHES WERE FOUND TO HAVE DRIFTED TO TRIP SETTING WHICH EXCEED THE LEVELS SPECIFIED IN THE TECHNICAL SPECIFICATION PS 2//503A TRIP AT 22 3. INCHES -

HG PS 2/503D TRIP AT 22.4 INCHES HG PS2/261/30A TRIP AT 838 PSIG PS2/261/300 TRIP AT 844 PSIG ALL SWITCHES HAVE BEEN RECALIBRATED AND TESTED , , . j/

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