ML20085J909

Telecopy Ro:On 740515,during Refueling Outage,All 16 Main Steam Area Temp Switches Found W/Setpoints Above Tech Spec Limit.Cause Not Stated.Switches Calibr

ML20085J909
Person / Time
Site:	Dresden
Issue date:	05/15/1974
From:	Stephenson B COMMONWEALTH EDISON CO.
To:	Oleary J US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML20085J908	List: ML20085J903 ML20085J909 ML20085J913
References
NUDOCS 8310190193
Download: ML20085J909 (1)

Text

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WAEC HOS GTWN 50-249 gu e.m b N, 5 54 v.u wSH IL4A139 A AE 1 C 3( l 359 )( 1 -021392C 135002 )PD D 5/ I 5/7 4 1357 ERGY COMM-ICS PMVEIE MVN 06l' j j;n[ Uni 0518'4 TDVE MORRIS IL 102 #5-15 ll31A CD1 PAS MN JF OLEARY DIRECOTR DIRtCOTRATE OF LICENSING US ATOMIC Eic'6R Y NOAMIbIUN AUI WASH DC SUBJ EC T: DPR-25 DRESDEN NUCLEUR POWER STATION UNIT 3 THIS WILL CONFIRA A CONVERSATION WITH F ' MAURA 0F YOUR OFFICE AT 1C45 HOURS THIS DATE CONCERNING MAIN STEAM AREA TEMPERATURE s SW I TCH ES BEING OUT OF NALIBRATIN 5/15/7 5 THE CALIBRATION s

0' THESE SWITCHES WHICH IS REQUIRED EACH REFUELING OUTAGE ,

WAS COMPLETED BY THE INSTRUNENT MACHINEST ALL 16 0F THE SWITCHES WERE FOUND TO HAVE SET POINTS GREATER THAN TH E . 200 DEGREE FARENHEIT ALLO.vED dY TABLE 3 2 1 0F THE

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• T;I C A L 3F EC I F I C AT I O.v . . i n ::. s w a U n ts w t N L CAL 10HAIED TO TRIP AT 180 DEGREE FARENHEIT PLUS OR MINUS 5 DEGREE FARENHEIT B H.STEPHENSON

. SUPERINTENDENT DRESDEN

.NUCLEUR POWER STA C_0MMONWEALTH EDISON NO

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