I wanted some heavy duty flex to run from a 15Amp socket out the back yard to my portable welder, having melted some so called heavy duty 15 amp flex last time I made a run this long I went to my local Middys to byt the stuff to make my own, even tough doing so is about twice the price of a made in China from the big B.
I asked for some heavy duty flex, then I asked the guy behind the counter for 4mm*2 flex and he said that there was no such thing and if I wanted heavier than 2.5mm*2 I would need to buy cable.
Can some-one please tell me the difference between cable and flex? they look the same, they use the same copper, just more of it, why the distinction?
Bloke in Middys said I should be fine with Flex if I bought thicker insulated stuff, same copper just more PVC surrounding the conductors, and here was I thinking that the heat generated by resistance was determined by the conducting area.
Anyway 50 meters of flex was too expensive so this is on hold for a while, I guess I'll buy one from K-mart and have to chance melting a hole in it again.