Conduit ring extension | on ElectriciansForums

Discuss Conduit ring extension in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

F

Fishyman

Hi

Can anyone confirm or disprove the need to identify the two sets of legs at a socket when extending in singles. I'm sure I remember something about having to ensure you extend the right legs? I think it's somehow done by putting each leg to earth and testing at the board and identifying them by their resistances. Leccy school was such a long time ago!

cheers
 
Yes you have to extend / splice into the correct leg of the ring, otherwise you would get unequal lengths (and therefore resistances) of the Line, Neutral, and CPC, which I imagine would cause all sorts of weird problems with your RCD.
 
Yes you have to extend / splice into the correct leg of the ring, otherwise you would get unequal lengths (and therefore resistances) of the Line, Neutral, which I imagine would cause all sorts of weird problems with your RCD.

No it wouldn't create a problem for the RCD.

Draw it out and you'll see why! :)
 

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