Originally Posted by thatirwinfella
there are also seperate licence requirements in most states for low voltage <500 [i think] and high voltage >500 [again, i think]. the average joe blogs domestic who rewires your house or does new homes is unlikely to have the high voltage licence, and many high voltage guys are unlikely to have a low voltage licence. However, there is the crossover in heavy industry. A lot if it is different regulations, some of it would be revenue [but thats the inner cynic in me]