Would appreciate your input.
What is the correct procedure to adopt to confirm no voltage/prove dead on an unearthed IT electrical system, HV and LV systems.
I am unfamiliar with this system having only ever worked on resistive earthed systems. Were a single suitable HV test stick is proven, the system tested, stick re-proven, before any electrical work/application of a CME is carried out.
With no theoretical earth in an IT system am I correct to say you prove dead by using a live line 2 pole tester confirming no volts between phases?
Any advice for HV & LV systems is much appreciated.