sheryl86_ann
Member
Greetings!
I would like to ask if anyone can direct me to a website leading to the common standard temperature for circuit breakers use in industries.
For short background why I need. We did a shutdown activities on substations including breakers re-tigthening on bolts using standard torque requirements. As part of the activity, we did temperature reading data on "before and after temperature" on its bolts. Now, aour ambient temperature is around 31 degree celcius. Common data recorded is around 30 to 33 degree celcius.
This time, we are using same "parameter" / standard our client has which is " Before and after temperature reading must be LESS THAN the [ambient temperature + 30 degree]. Now, I need to know where this statement is from and what reference is this.
We did not took the running current of this breakers for our target is with the bolts / shutdown though.
Thank you very much.
Sincerely,
Sheryl Ca?o
Philippines
I would like to ask if anyone can direct me to a website leading to the common standard temperature for circuit breakers use in industries.
For short background why I need. We did a shutdown activities on substations including breakers re-tigthening on bolts using standard torque requirements. As part of the activity, we did temperature reading data on "before and after temperature" on its bolts. Now, aour ambient temperature is around 31 degree celcius. Common data recorded is around 30 to 33 degree celcius.
This time, we are using same "parameter" / standard our client has which is " Before and after temperature reading must be LESS THAN the [ambient temperature + 30 degree]. Now, I need to know where this statement is from and what reference is this.
We did not took the running current of this breakers for our target is with the bolts / shutdown though.
Thank you very much.
Sincerely,
Sheryl Ca?o
Philippines