Loop in roses

If you simply join all the L together and all the N - the most common mistake - the light will work with the switch off. And blow the 'fuse' when you switch on.

Too many to think about. Where do these people get their logic from ans why cannot they simply check they know what to do before they begin?

Brian

Perhaps they should sell twin and earth with two brown conductors to avoid confusion.

A lot of the lights in this house are wired with two cables coming to the light switch, the neutral either unbroken or connected in a connector block, which seems odd to me but I suppose is OK.

Philip

Unsurprisingly, they do ...

The simplest way to avoid problems putting things back as they were is to take a photograph before anything is moved.

Andy Burns wrote in news:QeCdnYa- snipped-for-privacy@brightview.co.uk:

One really needs a stripe to identify the cores.

That may not help. What is needed is to make sure the switch return is identified, before removing things. But then if one doesn't know this it's perhaps best not to mess with electricity.

I once rescued my neighbour, MA DPhil MD with research experience at Oxford, Cambridge, and MIT from this.

That's what I use, and triple and earth for two way.

Sparkies usually don't because they penny pinch.

Why?

BTDT GTTS

When my son bought his house in Richmond he called me as he was faced with the same situation in the lounge, also complicated by two way switching. It seems the previous owner had not used that light for months as the delinquent husband had abandoned fitting a fancy ceiling light for the same reason. It took me half an hour with a meter and a bit of trial and error to work it all out.

Mike

Electrons don't care if they're going to the switch or coming back, they change direction a hundred times a second anyway ...

Andy Burns wrote in news: snipped-for-privacy@brightview.co.uk:

For convention I would want to put the live feed to the Common of a switch or where would we be - France!

And as the sleeving on the switched live often falls off when swapping a fitting (or is not there in the first place) then I chop the exposed copper off the switched live when removing the fitting. It does not matter then if the sleeving falls off or there was no sleeving.

How many combinations of what? Assuming that you know all the reds go together and all the earths go together then there are only three combinations.

I tape it with red (or brown) tape before I disconnect it.

But the punters don't necessarily know all the reds go together :-)

Only in AC circuits.

It also assumes that the switch loop has been wired in ordinary twin & earth not the "twin live" version.