Most Portable Generators are NOT fitted with an RCD as they use an IT type system. “Bird on the wire effect” – The person here has voltage potential but as there is no current flow then he is not able to be electrocuted.

What is RCD on a generator?

Earthed power supply – TN and TT systems

One residual current device (RCD) per socket-outlet is required for the TN and TT systems – even with regard to the fact that the generators are deployed outdoors and are designed for use by untrained, unqualified personnel.

What is RCD in portable generator?

If you have a gen-set with a residual current device (RCD) fitted, then these should be electrically connected between the generator winding and the frame.