Home › Electrical Engineering Forum › General Discussion › Types of Earthing (as per IEC Standards) › Re: Types of Earthing (as per IEC Standards)
2014/11/18 at 1:46 pm
#13635
Anonymous
Guest
My project is IT distribution system, and I am using step down transformer for 230v power loads, my question is , is it necessary to ground the secondary X2? If yes, why we should ground it and what is that system called ( TN or TT). And is it necessary to use PE conductor cable for external load , such as anti condensation heater, single phase fan, etc).