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Max. Temp. Limit Over Ambient..


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Dear All,


What could be the max. temperature rise limit over ambient temperature allowed for Cu busbar in a LV switchgear as per IEC or EN standards..


If any body having soft copies of IEC or EN Standards kindly forward it to :






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Hello Pragathees...


The maximum temperature of a copper busbar is 105 degrees C. That is a 60 degree C rise over an ambient temperature of 45 degrees C.


IEC and EN standards are available from the standards bodies. You can usually purchase these on the web sites.


Best regards,

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