I've a five-story house, with an awful lot of light switches in it. Some are two-way, some are one way.
I thiought that I understood the wiring in the switches for each, but looking at some I'm getting confused.
For example, I've a one-way switch that is the only one to control one group of ceiling lights. I'd expect one live wire to go into one side of the switch, and one switched live to cone out of the other side. The other input to the switch should be empty.
What I actually have is two wires coming in to the bottom, one live, and one with no voltage (so it could be a neutral, an Earth, or just not attached to anything.
Like this;
On some of the two-way switches, where I'd expect the switches to have two switched-lives coming in, and one switched live going out, I actually have one wire in the "common" connection, but then two wires going into each of the inputs, with one input having a blue and a black, and the other having a brown and a grey, as shown below.
Is anyone able to explain what's the setup here?
Thanks.
I thiought that I understood the wiring in the switches for each, but looking at some I'm getting confused.
For example, I've a one-way switch that is the only one to control one group of ceiling lights. I'd expect one live wire to go into one side of the switch, and one switched live to cone out of the other side. The other input to the switch should be empty.
What I actually have is two wires coming in to the bottom, one live, and one with no voltage (so it could be a neutral, an Earth, or just not attached to anything.
Like this;
On some of the two-way switches, where I'd expect the switches to have two switched-lives coming in, and one switched live going out, I actually have one wire in the "common" connection, but then two wires going into each of the inputs, with one input having a blue and a black, and the other having a brown and a grey, as shown below.
Is anyone able to explain what's the setup here?
Thanks.