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proper wire size for cnc machine

proper wire size for cnc machine

proper wire size for cnc machine

(OP)
hi,  what is  proper way  to  calculate  wire size  for  cnc  machine?  Should  be calculated  on full load current?(our   aplications use  1/3  of  the full load).  Is there any  regulation ,code  for that?

RE: proper wire size for cnc machine

The 'Code (Counrty)' says that the wire size should be sufficient to support the ampacity of the machine plus 125% AND the voltage drop should not be more than 3% between the panel and machine, AND not more than 5% from the utility to the machine.

RE: proper wire size for cnc machine

The starting current will be the same regardless of what load is applied after the motor is running. This is part of the determination of minimum wire size.
respectfully

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