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How to calculate Ampacity of a Rectangular Copper Bar 2

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nonsinusoidal

Electrical
Joined
Mar 28, 2009
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81
Location
US
Does anyone know how to calculate the ampacity of a rectangular copper bar. Please see the attached drawing for details. Please note that the cupper bar is going to be utilized as a terminal point for conductors up to 600 volts. The terminations will have two hole lugs as as shown on the drawing. Any suggestions to accomplish this task are highly appreciated.
 


Thank you everyone for the helpful responses.
 
it is only the manufacturer of rectangular copper bar that can give you correct current rating of the copper.this because the purity of vary from one manufacturer to other but the approximate method of determining copper bar current rating is 2Ampere/mm sq(i.e 2x surface crossectional area of the rectangular copper conductor)
e.g rectangular copper bar 0f size 40x10mm.
current rating = 2x40x10=800amps
 
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