Hi Guys
I had some very strange readings today when doing an EICR. Property is a semi detached cottage in a very rural location. Over head supply.
The first thing i noticed when i arrived was a piece of angle iron driven into the ground outside the front door with a corroded 10mm earth cable bolted to it exposed for all to see.
The consumer unit is located just inside the front door in a cupboard and i can see the earth cable going out through the door frame. I disconnected it at the CU and got an Ra reading of just over 2 ohms so i am obviously amazed. I reconnect it to the CU to get a PFC reading etc and the Zdb is nearly 300ohms with the original earth reconnected. I disconnected it again and got just over 2 ohms again. Reconnected it and got around 300ohms.
This is a new one on me, does anyone know what could be going on ?
Cheers Gary
