Evening..
So, I'm working on a house that has been split into 2 flats and have been asked to do a board change in the downstairs flat. The earthing arrangement is TNS but I noticed that there is an earth connected between the neutral of the cut out and the earth terminal block to create a PME, on disconnecting this earth I am getting a Ze reading of 107 ohms with an earth cable connected to the incoming cable sheath. I rang Northern Powergrid and they informed me that they don't provide earths in this part of Leeds, fair enough earth electrode time.
But there is also a second Live and neutral going to the upstairs flat (no earth going up so I'm guessing that there is a home made PME up there also) which the landlord of the downstairs flat has just bought, I think I'm right in saying that the electrical supplier is responsible for this live and neutral. Would I have to install another earth electrode for the upstairs flat or could I share the one I'm installing downstairs?
So, I'm working on a house that has been split into 2 flats and have been asked to do a board change in the downstairs flat. The earthing arrangement is TNS but I noticed that there is an earth connected between the neutral of the cut out and the earth terminal block to create a PME, on disconnecting this earth I am getting a Ze reading of 107 ohms with an earth cable connected to the incoming cable sheath. I rang Northern Powergrid and they informed me that they don't provide earths in this part of Leeds, fair enough earth electrode time.
But there is also a second Live and neutral going to the upstairs flat (no earth going up so I'm guessing that there is a home made PME up there also) which the landlord of the downstairs flat has just bought, I think I'm right in saying that the electrical supplier is responsible for this live and neutral. Would I have to install another earth electrode for the upstairs flat or could I share the one I'm installing downstairs?