M
maddfridge
Good Morning Gentleman
i have recently been testing house all of which are overhead supplies fed and the bog standard earth rod installation
however we had some serious earth path issues with a39 ohm earth rod when combined with the bonding taking it down to 0.27 ohms almost tncs then the next house all sort sorts of odd readings ???
we found that an outside lighting circuit had been run over a caternary wire and had been bonded at the isolators to each of the individual consumer unit earths
even with these disconnected parallel earths vis the gas and water pipes bought the readings down
any of you learned folks out there came across parallel earth other than bonding before ???
oh by the way the 30s style twisted copper wire earthing was still there but had been disconnected eons ago
cheers
p.maaddison
i have recently been testing house all of which are overhead supplies fed and the bog standard earth rod installation
however we had some serious earth path issues with a39 ohm earth rod when combined with the bonding taking it down to 0.27 ohms almost tncs then the next house all sort sorts of odd readings ???
we found that an outside lighting circuit had been run over a caternary wire and had been bonded at the isolators to each of the individual consumer unit earths
even with these disconnected parallel earths vis the gas and water pipes bought the readings down
any of you learned folks out there came across parallel earth other than bonding before ???
oh by the way the 30s style twisted copper wire earthing was still there but had been disconnected eons ago
cheers
p.maaddison