Hi there I'm just wondering if I could shed a bit of light on the sizing of cabling required on 4 floor high building who's power requirements are inter-linked with each otpher on each of the 4 floors now these contain Power sources for 110v,230v & 400v.Now there are Welding units who's maximum output when all of them are working is about 64kW.Now my calculations are if the client uses 400v 3phase then I work out the overall current to be just under 100A and recommended a cable of 3 Core x 50mm2 for the total current to run interconnecting the power sources on each of the floors so I'am wondering would this be correct in the size of cable to use. If it is going to be 230v Single Phase then the total current I calculate to be around 240A of which a cable type of 3 core x 120mm2 would be required to interconnect with all 4 Power sources on each of the floors. Could anyone give us an idea as to whether the cable sizes for each of the inter-connected power sources would be desirable?. And also if someone could give us an idea of the cabling requirements for 12 13A domestic sockets running say the full load of soldering irons at each time has to the cabling sizes that would be required on each of the floors and lighting requirements of say 500w for 12 lights.
Regards
Jimmy2Rivers
