Method of proving a HV system/drive dead

[ekuegler]

Hi,

Previously touched in another thread, can anyone outline the correct procedure/step by step method to adopt in proving a HV 3 phase, 11kV system dead given the system is an unearthed type...? Also can you provide opinions for the above but LV system relative.

I would appreciate your input or thoughts/ways and methods iin which to ascertain a dead system.

 

[Zogzog]

See NFPA 70E and OSHA's step by step procedure for "Establishing an electrically safe working condition"

 

[7anoter4]

I agree with Zogzog.See NFPA 70E art.120.1"Process of Achieving an Electrically Safe Work Condition" 6 step-by-step procedure.