P
Plouasne
I once had a panic phone call from a client,she kept getting electric shocks from the taps
The reason for this was SWEB had just re-laid the electric service to the properties in the road, and the cable jointer had transposed the phase and neutral, and the property being a PME electric system, with the earth being bonded to the neutral (now the phase and so live) at the cut out, this turned all the cross bonding into an electric circuit
The SWEB emergency call out fitter was so shocked that he did not touch the installation until he had his supervisor visit the job, the last I heard was that the jointer was still cable jointing!!
On another point regarding earthing, if replacing a metal cold water storage tank with a plastic one, it would pay to check, and cross bond all the metal pipework coming from the tank to make sure that the earth is continuous
The reason for this was SWEB had just re-laid the electric service to the properties in the road, and the cable jointer had transposed the phase and neutral, and the property being a PME electric system, with the earth being bonded to the neutral (now the phase and so live) at the cut out, this turned all the cross bonding into an electric circuit
The SWEB emergency call out fitter was so shocked that he did not touch the installation until he had his supervisor visit the job, the last I heard was that the jointer was still cable jointing!!
On another point regarding earthing, if replacing a metal cold water storage tank with a plastic one, it would pay to check, and cross bond all the metal pipework coming from the tank to make sure that the earth is continuous