What diam cable?

[chris_topher]

a furnace that draws 105Kwatt on 44ovolts


what diameter cable to I need?


I think my firm don't know what they are doing!!

 

[trev]

Why? What have they supplied?

 

[Guest112]

so using basic I=P/V 105000W/440V=238A so big cable then????

 

[micknew]

You will require a cable rated at 137.94 amps per phase.

 

[trev]

Found a handy looking quick guide at csecables.com, multicores in free air you're looking at 50mm2.
I've terminated bigger but was a wee bit scared at first

 

[Guest112]

talking of big cables can anyone else cut a 4 core 300mm aluminium in one go with a hacksaw? once and once only never again lol

 

[Knobhead]

Is the furnace resistive 3 phase or induction single phase? I’ve worked on both up to 2.6MW but I need to know what we’re looking at. At 105KW it could be induction. It would help to know the manufacturer.

 

[chris_topher]

Thanks for the help guys and Tony, I'll ask the question

(im my firm its a case of too many chiefs not enough people of an indigenous nature)