ML20084S271

Ro:On 730324,upon Completion of Instrument Mechanics Calibr of switches,9 of 16 Temp Switches Found to Have Trip Settings Greater than Tech Spec Limits.Cause Not Stated. Switches Reset

ML20084S271
Person / Time
Site:	Dresden
Issue date:	03/26/1973
From:	Worden W COMMONWEALTH EDISON CO.
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20084S270	List: ML20084S267 ML20084S271
References
NUDOCS 8306160400
Download: ML20084S271 (1)

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DIRrCToo DIVI 9 ION OF COPDLI ANCE REGION 3 ,,7g g% c-r 1f9 ATnMIC ENERGY COMPIscION WHY 799 ROOFrVELT ROAD .g 3 s. , j m GLENFLLYN ILL 7 c'/ '/

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THI9 WILL CONFIRP A CONVER9ATION WITH PR H D ANCE OF YOUR OFFICE AT 145n H0f f" THIS DATE CONCERNING PAIN STE AM LINE ARE A TEVPERATURE 9VITCHFe 9FING OIIT OF C ALIBR ATION. 09 3-24-73 THr INCTRtlPFNT PECHANIC9 COMPLETED THE CALI9 RATION OF THESE SWITCHE9 YFICH I4 protfIRED EVERY REFlfELING OI!T AGE. NINE OF THE CIYTerN TEMPFPATt!9E 9WITCWE9 ERE FO!!ND TO HAVE TRIP SETTINGS GRFATFR TuAN THF TECFNICAL SPECIFICATIONS LIFIT OF 200 DEGREES E y.,, JgornfuFIT. THI9 UA9 THE FIR 9T TIME TFE9E SWITCHrS WERE C ALI9 RATED CI'!Cr THF nRI'3IN AL CONCTR tlCT IO N TFYT . ALL RVITCHES vrRe DE9FT TO TRIP RF1WFEN 190 DEGREES TO 195 DEGREES.

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