"Lurch" wrote
| John Rumm strung together this:
| Not any expert on 3 ph setups, but I was under the impression
| that you designed cable sizes for the working load and not
| the startup current since it is only a short duration transient?
| Quite right, any motor and most inductive loads will take a large
| surge at startup. The continuous circuit current is the one that
| determines the cable size. You would also provide motor rated MCB's or
| fuses to cope with the startup current.

Wouldn't you need to check voltage drop at the start current though, to
ensure there's enough voltage to get the thing started (or does a starter
controller take care of that)?

Owain