Power from cable

[Freddie]

I have an extension cable from my shed to another buiding. In my shed the cable is connected into a 3 pin industrial push in plug socket and the cable is fully extended around 70 metres and the cable is i think 2.5mm rolled wire not a 3 core solid

My question is at the 70 metres length how much max power can i safely draw from it--e.g. 2000 watts 2500 watts--3000 watts etc

thanks

 

[pdcelec]

BS7671 holds all the answers, if you only care to look.

 

[BlueIce]

IF it is 2.5mm cable, I personally would not use more than 1.5KW MAX.