electrical calculation question

[gymboy34]

hi all,
dont know if in correct section ofn forum
but here we goes
calculate the diameter of an aluminium busbar which is 24m long and whose resistance is 0.00139
formula a= pl/r and then convert the csa area into a diameter which i dont know how to do.

a = 2.84*10-8*24/0.00139 =4.9

I f im going down the correct pah i need to know my csa formulas.
any help greatly appreciated.

cheers
gymboy

 

[Loges1504]

I am after a simple electrical calculation sheet for 110v,
does anyone have?

 

[davesparks]

I am after a simple electrical calculation sheet for 110v,
does anyone have?

For what calculations?

 

[ipf]

For what calculations?

I suppose they've not changed since 2014....if you know what you want.
Start a new thread and ask the question properly, including exactly what you're after.