4 way lighting

[simoneve]

hi all, can someone please do me a diagram for a 4 way light system (4 switches,1 light) I know the wiring for a 3 way system and i believe i just have to add a 2nd intermediate switch but i don't know what colours go to and come from which terminals on the 2nd intermediate switch.A nice basic diagram would be greatly appreciated.Thanks

 

[ban-all-sheds]

//www.diynot.com/wiki/electrics:intermediate

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[ericmark]

This is from Wiki what bit don't you understand?

 

[ebee]

The choice of colours is up to you so long as they are used to get conductors to correct terminals on each switch (when I say colours I mean original colours as you should sleeve them where appropriate to give correct colours - brown (formerly red) on the conductor ends to identify as a "L" conductor)

ie use two of the colours for the strappers (usually marked as terminals L1 & L2) and the remaining colour as the common (usually marked as C).

My own personal preference is

Twin and earth, L1 = brown & L2 = blue (sleeved brown)
Three core & earth L1 = brown, L2 = black (sleeved brown) & C = grey (sleeved brown) .
That way the permanently energised conductor is always true brown or in old money it was always red!
As I said just my preference, others differ.