got called out this afternoon, lady had engineer out from manufacturers this morning to repair washing machine. He did the repair then got "some big" machine out and tested her sockets!!. He then advised her not to use the electrics in the house and gave her a note saying dont use until had repaired. His reason was that the earth loop was over 200ohms.
So gets the mft out and tries a Zs, was 141ohms. So opened up board to find no earth from DNO but system had earth, poked head out of front door, yes there it is TT, overhead cables. Checked Ze, was a bit high at 61, but within limits.
So because of this guys little knowledge and a big machine this lady had sat in dark cold house all day, fightened to touch anything!!
So gets the mft out and tries a Zs, was 141ohms. So opened up board to find no earth from DNO but system had earth, poked head out of front door, yes there it is TT, overhead cables. Checked Ze, was a bit high at 61, but within limits.
So because of this guys little knowledge and a big machine this lady had sat in dark cold house all day, fightened to touch anything!!