Amazing Two Live Wires In Light Switch
The pigtail gives you two hot wires instead of just one.
Two live wires in light switch. To stop this we insert a switch in the live line which allows us to either switch the light on or off. The light would remain on all the time. Connect one wire to the first switch in the box and the second wire to the other switch and connect the black wire from each of the lights to the other terminal on its respective switch.
A three way light switch is one where you have two switches that have the ability to control the same light or set of lights. The ground wire on the other hand must connect to both switches and the easiest way to do this is. Therefore the 2 switches the light 3 way.
A 2 wire system includes two wires live and switched live. The brown wire is live also know as permanent live this brings the live supply to the switch. How to wire a three way light switch.
The white or neutral wires bypass the switch so the one coming from the power source and the one from the light get spliced and capped in the box. A standard 2 wire lighting circuit is shown in figure 1. Switched live is only live when the switch is on this is where it gets its name from.
There will be an additional wire needed often red to connect the switches together to a dedicated screw or input on the switch that is specifically marked for this purpose.