What is the danger of grounding a pipeline in an apartment building?
The question is very sensitive. I read a lot about him and still can’t find an explanation for how it is possible to get a shock from a neighbor in the riser during punching, for example, a washing machine, if the riser of the water pipe goes far into the ground? Indeed, when punching on the body of a washing machine in an accident, currents will go into pipes and into the ground. Suppose if, when the phase is closed through the multimeter, the riser shows around 220 volts in the riser. Thank.