First my appologize this topic thus not entirely belong here but yet please help...
In IT grounding system transformer is not grounded and thus there is no need for RCD device since touching live wire does not complete circuit. Instead ground fault detector is installed that measures resistance from all 3 live wires compared to the ground. If resistance is lower than 50k ohms alarm is trigered.
My question is why do you get electrocuted touching wire of high voltage transmision lines when power plant transformer coils also isnt grounded and no current flows through ground.
In IT grounding system transformer is not grounded and thus there is no need for RCD device since touching live wire does not complete circuit. Instead ground fault detector is installed that measures resistance from all 3 live wires compared to the ground. If resistance is lower than 50k ohms alarm is trigered.
My question is why do you get electrocuted touching wire of high voltage transmision lines when power plant transformer coils also isnt grounded and no current flows through ground.