Almost. there are no cables involved. This is an old installation. The original socket circuit was wired as such: two pvc wires, red and black, exiting the Db board conjute metal piping, mounted upon cleats and running through the roof. Every so often there is a joint, with another 2 wires, and those 2 wires run away from the cleated wires and into a metal conjute down to a plug. The lighting circuit is similar. All the metal conjute pipes are bonded at the exposed part in the roof, to a earth wire and then usually to the water pipes. The earth wire does not travel down the pipe with the red and black wire.
The question is, when the socket outlet is replaced, does there have to be an earth wire delivered down the conjute pipe to the new socket outlet (i support this theory) or are you allowed to drill a screw into the metal box and attach a wire from the plug socket to the screw. (I do not support this theory)
Disregard the extensions for now that was actually for another question
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