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manimuthu
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Join Date: Oct 2007
Location: Karur.India
Posts: 2

Electrical engineering - copper busbars

10/24/2007 9:26 AM

what is current carring capacity in copper busbars?.

2.24 mm wire equivalent wire in sqmm

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G.Swaminathan
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India - Member - Electrical Energy

Join Date: May 2007
Location: Tamilnadu
Posts: 57
#1

Re: Electrical engineering - copper busbars

10/24/2007 11:13 AM

I thing you required the current rating for 2.5sq.mm copper wire. This rating will be

18amps only.Any other things reply please.
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

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Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
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#2

Re: Electrical engineering - copper busbars

10/24/2007 11:18 AM

In domestic electrical wiring, 2.5mm2 solid-conductor twin-and-earth cable is commonly used in domestic ring-main circuits that are rated up to the capacity of a 32A breaker and in spurs off the ring. If a circuit is wired in 2.5mm2 as a radial then the breaker must be down-graded to 20A.

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popoy12345
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Join Date: Oct 2007
Location: Philippines
Posts: 17
#3
In reply to #2

Re: Electrical engineering - copper busbars

10/26/2007 4:10 AM

Current carrying capacity of busbar depends on the corss section area. Please refer to NEC for current density of busbar..1000amps/in2 or 1.55amps /mm2
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