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101 Posts
Had to go to a call where a kid was zapped by 50 volts appearing on the ladder of a swimming pool everything was correct bonded and stuff I suspected a high impedance neutral no luck then looked at the transformer fed by u/g 6.6kV 2 480 volt secondary center tapped fed to 2 properties on on each leg, three were 3 pots on a pole 11-6.6kV,feeding six joints near the sea so I suspected the cable must be corroded,proved the point by connecting up a diesel generator rewired to double delta,they even found the lead jacket was almost gone only remnants of the outer cable remained,but why is it so hard to get things done they blamed everything from roadworks to metal thieves.