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Join Date: Apr 2010
Posts: 2

short circuit force calculation

04/15/2010 2:25 AM

how to calculate short circuit force in copper bubars of c/s say 120mm x 10mm running horizontally in an encloure?

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Anonymous Poster
#1

Re: short circuit force calculation

04/15/2010 2:52 AM
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Join Date: Feb 2009
Location: Houston, USA
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#2
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Re: short circuit force calculation

04/15/2010 9:03 AM

The force primarily depends on the short circuit current flowing through the busbar. The busbar shall withstand the force applied by the fault current. The rating for the capability of the busbar to withstand this force is called bracing, it is generally expressed in kA of r.m.s symmetrical fault current.

See the previous posting http://cr4.globalspec.com/comment/539754. It has the link http://www.copperinfo.co.uk/busbars/pub22-copper-for-busbars/sec6.htm for the detail of the force calculation.

- MS

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Anonymous Poster
#3
In reply to #2

Re: short circuit force calculation

11/02/2010 4:02 AM

Dear sir,

I am studying short ciruit force calculation and I searched on net & I got some paper on force calculation.

But I am not able to understand from where they got this formulae.

So please can any body tell me how derivation comes for short circuit force calcualtion.

Please contacts me

Thanks & regards

Sanj

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