Trying to make sense of the lighting circuit upstairs.
Bottom of the stairs there's a 3 gang 2 way switch. One of the switches turns the landing light on.
Single 2 way switch on the landing, also turns the landing light on.
What I don't understand is that there's only 1 single core cable(live) between the light and the landing switch.
Then there's a twin and earth cable running from this switch to the switch at the bottom of the stairs.
I always thought you needed 3 core cable between switches for 2 way lighting?
Bottom of the stairs there's a 3 gang 2 way switch. One of the switches turns the landing light on.
Single 2 way switch on the landing, also turns the landing light on.
What I don't understand is that there's only 1 single core cable(live) between the light and the landing switch.
Then there's a twin and earth cable running from this switch to the switch at the bottom of the stairs.
I always thought you needed 3 core cable between switches for 2 way lighting?