Looking at my lighting earlier and see that my multimeter is measuring 230v from live to neutral at the ceiling light, but only70 ish volts from live to earth. Am I right in thinking the earth may be disconnected somewhere and the 70ish volts im reading is due to capacitance ? I cannot get my head round why its like this The live is definately at 230v so if the earth was disconnected I should not be getting any reading atall. Where is this 70v reading from ???? and between what ?? I need to check the continuity of the earth tomorrow but it cannot be continuous or i would be getting 230v, even a loose earth connection would still read full voltage would it not ??
Voltage across L-E when the light is off reads zero volts; my first thoughts was this 70v was inductance. Its just I cannot figure why if one lead is on the L at 230v, and the other lead is on E its still reading 70v across them. Am I right in supposing that the induced voltage on the earth, is actually around 160v ? My reading of 70v is due to the potential between them (230 - 160) =70v ?
Voltage across L-E when the light is off reads zero volts; my first thoughts was this 70v was inductance. Its just I cannot figure why if one lead is on the L at 230v, and the other lead is on E its still reading 70v across them. Am I right in supposing that the induced voltage on the earth, is actually around 160v ? My reading of 70v is due to the potential between them (230 - 160) =70v ?
