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Changing Hazardous Area Classified AC motor bearing requirements

Changing Hazardous Area Classified AC motor bearing requirements

Changing Hazardous Area Classified AC motor bearing requirements

(OP)
I was informed by my colleague that all motors that are classified to be used in hazardous areas (eg. EEx de etc) must have its bearing changed by certified company/personnel authorised to work on such motors. This is provided under the hazardous area protection method standards. Could you notify on such standard (such as ANSI or IEC)so that i could refer to? My knowledge is that you only need to send to authorised agent if the work involve changing of the winding and motor terminal box.

RE: Changing Hazardous Area Classified AC motor bearing requirements

If the motor has as UL-label for hazardous location, then you probably need to check with motor manufacturer regarding bearing replacement.  

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