I am trying to physically trace the 'earthig' wire system in a 1960's built house.
The sockets all have the correct earths back to an earth bus in the fuse boxes (which have the old fusewire type fuses NOT consumer unit).
The fuse boxes (2) have their earth buses connected together and a wire runs from this back to the meter board where it dissappears into the primary power cable running into the house. It does this without passing through anything on the meter board.
I have found various earthing straps connecting water pipes in both the bathroom and the kitchen but these are only connections between pipes and are without any earth grounding rod connection. My incoming mains water pipe is plastic so I'm not sure what these are achieving.
My central heating pipes (all copper) are burried in the concrete floor of the house, and I am wondering if they are relying on these to act as an 'earth' to ground.
Is the whole electrical system relying on the rather flimsy single cable connected to the mains inoming bundle. Should I be adding a ground rod buried earthing strap to the pipework and/or the mains earth bus?
