normally this will be done by EE[ Electrical Engineer ] and the EE will use the correct size for it but you have to watch the grounding size as well. and the netutral willbe solid or implanced [ resitored ] system ??
typically with the service like this large will have GFI system on it as well.
Merci, Marc
Pas de problme,il marche n'est-ce pas?"(No problem, it works doesn't it?)