Why Use an Earth Rod when a Disc will do?

flat copper tape is also expensive for what it is (here). It is even more expensive than stainless steel ! You can just bury bare wire or those screw together ordinary rods laid sideways.


Burying a galvanised scaff pole in the trench is cheaper and being larger area  will make a better electrode with a working life of many decades. The hardest part with something that big is getting a rot proof connection to it. assuming no JCB handy to put a J bend in it to make it inspectable, then big lugs & bolts, and tar or denso tape on any buried joints where different metals meet are probably as good as any.
foundation earthing and other structures are also a possible alternatives  OR an earth mat  if you are rich.

On a safety critical system you might bring up 2 tails so you can ring through to verify that both connections are still good.

Actually for perimeter electrodes round houses, some EU countries require both ends to be available for just such a test.


M.

flat copper tape is also expensive for what it is (here). It is even more expensive than stainless steel ! You can just bury bare wire or those screw together ordinary rods laid sideways.


Burying a galvanised scaff pole in the trench is cheaper and being larger area  will make a better electrode with a working life of many decades. The hardest part with something that big is getting a rot proof connection to it. assuming no JCB handy to put a J bend in it to make it inspectable, then big lugs & bolts, and tar or denso tape on any buried joints where different metals meet are probably as good as any.
foundation earthing and other structures are also a possible alternatives  OR an earth mat  if you are rich.

On a safety critical system you might bring up 2 tails so you can ring through to verify that both connections are still good.

Actually for perimeter electrodes round houses, some EU countries require both ends to be available for just such a test.


M.