How to work out csa of cable

[cm304eex]

Hi all I have lost my notes on ow to work ouut csa of a cable an how to work the csa out if given the diamiter. also if you double the csa do you divide by four? headbang

 

[revjames]

Area of a circle is PI x R2 so transpose that formula and you should be able to halve the given diameter to get R square it and then multiply by 3.142

Or am I missing something here?

 

[netblindpaul]

Rev,

There is also the situation with stranded cores where one has to measure (obtain) the diameter of each strand, calculate the area of the individual strand, A=((Pi*D^2)/4), then multiply this by the number of strands to get the area of the individual conducting core.

Paul

 

[BigMac]

Hey man,

student myself so got no answers im confident to share,but I think your missing a bit on your question

"also if you double the csa do you divide" the resistence" by four?"

think that is what your asking?

cheers.