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Ellen
Ellen, Consultant
Category: General
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Experience:  attorney and legal researcher
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I am struggling to under stand short circuit fault clearing

Customer Question

I am struggling to under stand short circuit fault clearing time as it relates to sizing long runs of cable and the selection of circuit breakers for sub mains.
When sizing long runs of sub mains should I assume that the clearance time of the fault will be instantaneous and specify an appropriate CB or is it more prudent to specify a larger cable even thought this may cost much more.
Submitted: 1 year ago.
Category: General
Expert:  kabari75 replied 1 year ago.

Hallo,

Welcome to just answer.

My experience with your country power system is limited. I will forward this to other groups for assistance.

Customer: replied 1 year ago.
Relist: Other.
He did not know the answer
Customer: replied 1 year ago.

Hi

I am still waiting for an answer from some body!!!!

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