Discuss dundee 2 way? anyone help!? in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net
i've seen ( only a couple of times) where both 2 way switches had 3 core/E's back to the light position. was like spaghetti junction in the light fitting. 2 T/E and the 2 3 cores+ the S/L &N to the fitting. 5 cables in a ceiling rose.
1 of the times i seenit like that, customer had decided to fit a new light. he dissed everything, could nor remember how it was before, then he called me. took 1 hour to sort and get working.
I don’t know that I would call your standard method ‘standard’, at least not now.This name for it is probably only used in your particular area. Can you give some more details on the cir uit and then maybe we can work out what it is?
Is this wired in conduit or T&E, how many of what type of cables do you have at each switch.
There's only really two ways of wiring a two way, the standard method or the switch conversion, though there are many ways to physically connect them depending on each installation.
A standard 2 way has a live to the common of one switch, 2 straps between the switches and a switched live taken from the common of the other switch.
A switch conversion has a live to L1 and switched live from L2 at on eof the switches with 3 conductors linking the two switches (com to com, L1 to L1, L2 to L2)
yes but the metal faceplate is more critical than the back box. either earth the faceplate/s instead or link to back box with a fly lead.theres a link from the connector of the earth to the back box just cant see it in picture
I don’t know that I would call your standard method ‘standard’, at least not now.
It’s this method which causes borrowed neutrals when used on stair lighting.
If you take the feed to the downstairs light switch from the downstairs lighting circuit, then feed the upstairs light from the upstairs light switch, where do get the neutral for that upstairs light?How on earth does it cause borrowed neutrals? I've installed a lot of 2 way circuits this way and it's never caused a borrowed neutral to appear in my wiring?
The cause of borrowed neutrals is people wiring things incorrectly through lack of knowledge, care or just plain stupidity.
If you take the feed to the downstairs light switch from the downstairs lighting circuit, then feed the upstairs light from the upstairs light switch, where do get the neutral for that upstairs light?
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