Wiring Diagram Using a 2 Gang Switch Converting it to 2 Way Switching Using 3 Plate Wiring Method Student training aid for the connections required to wire a lighting circuit using the 3 plate loop-in method. Video explains the connection required within 2 gang switch when you add a second switch (2 way switch) to make it 2 way switching. The circuit is wired in twin and CPC cables (twin and earth cable) and I add a 3 core and CPC cable to the wiring diagram for this circuit. This video will sho