Sir I had visited a lpg plant recently, they had separate nutral earth pit for power transformer and other equipments were earthed to separate earthing grid. Is this same as TT type or it is different?
Sir firstly thanks for beautiful explaination but i have one doubt that TT earthing is hazardous but still recommended at hazardous zones like petroleum filling stations as said at 07:10 ...the reason for this is unclear to me ....please help