Current Carrying Capacity of Copper Wires

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1. American Wire Gauge table and AWG Electrical Current Load Limits ...
   

Dear Lyn,

Thanks for the link, which is useful. In India, SWG is more popular. but is is possible to convert AWG to the nearest SWG.

Dear Mr. thyagups,

The answer is simple.

1. General Consideration - 1000 Amps/Sq.Inch (or) 1.55 Amps/MM^2, rounded to 1.5 Amps/MM^2. DE-RATING FACTOR as APPLICABLE.

2. 2nd Part of the Question - the Answer is YES.

DHAYANANDHAN.S

Dear Dhayanandhan,

Thanks for the reply. Now I am able to remember the same formula.

I was told that we may have to de-rate when multi stranded wire is used in place of a single wire of same cross section. But I am not sure about this as I couldn't get supporting material both for or against.

I agree with you that in theory, it should be same for both types.

http://www.houwire.com/products/technical/article310_16.html

Dear Sir,

Thanks for the link. It is useful too.

British Standard 7671. Again, and again, and again... <sigh>....