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Hi all, My pond has a pump and a UV lamp. Both run cables to a JB mounted on the wall near to the pond. The supply is flex buried in PVC conduit and enters the house via a hole in the window and into a 13A plug which is into the socket via a RCD plug in. I want to bring this up to a decent...

Here is a question regarding the supply to a normal household. The CU is wired in TN-S (as the earth is separated from the neutral bar), but back at the Elec Boards transformer - would I be correct in saying that the Neutral is connected to Earth (therefore TN-C-S)? With that in mind, when the...