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	Subject - Electrical cable agan Hello everybody, Please help me to solve this problem. We have a 600KW (415V,50Hz, 3 phase) alternator , which required to be wired on a 3 wire ( no nuetra) to a swichboard. What is the size of 3 core cable (cross section dia) to be used? howmany such cable per terminal to be connected? where can i have the list of cable and corresponding Amp rating? how do u calculate the cable size? Pse help Thanks Ur friend Agan lctrc789 Agan, 600 KW X 1000 =600,000 /415/1.732= 834.47 amps or 835 amps total If I am right here by article 310-15 you will need a paralled set of 600 MCM cables. Ok guys anyone want to double check me here and make sure I have figured this right. iwire I am fairly certain this installation does not fall under the NEC as 'International' as the NFPA wants it to be. I do know a site for Non-US Electrical Systems & Trades that can probably help. http://electrical-contractor.net/cgi-bin/forumdisplay.cgi?action=topics&number=9&SUBMIT=Go beginerelectrician01 yea it is 600 mcm that you need to use. We use 600 mcm on a 650 kw generator