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I have to provide power for 10 appliances.Each appliance will be provided with own mcb.
The distribution board is 50 meter far away. So I will install a sub board in the room where the appliances will go.the sub board will be fed from the distribution board.If I install the subboard with a single phase I have to provide 16mm2 Swa as each machine take7amps and I require 70 Amps.My question is if I feed the subboard with a three phase accordingly with the regs I can use 6mm2 swa clip direct as I require this time only 40Amps (70/1.732=40amp) therefore each machine will be wire with the own radial circuit.is my calculation right with regards the cable sizes and ampege? I need your opinion and expertise Thank you
The distribution board is 50 meter far away. So I will install a sub board in the room where the appliances will go.the sub board will be fed from the distribution board.If I install the subboard with a single phase I have to provide 16mm2 Swa as each machine take7amps and I require 70 Amps.My question is if I feed the subboard with a three phase accordingly with the regs I can use 6mm2 swa clip direct as I require this time only 40Amps (70/1.732=40amp) therefore each machine will be wire with the own radial circuit.is my calculation right with regards the cable sizes and ampege? I need your opinion and expertise Thank you