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Anonymous Poster

Fault lavel calculation

01/01/2010 7:44 AM

How can I able to calculate the Bus Bar (Aluminium) size of A MCC/PCC with the following data that are available

1) Full load current i,e, incomer ACB rating say 1000A

2) Fault lavel , say 50 KA for 1 sec

3) rated voltage 415 V , 50Hz, 3 Phase , 4 Wire

4) Current density say 0.8 A/ sq. mm

Kindly give me the calculation with all respect
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