[PDF] Practical Manual - RPS it is mainly used in staircase wiring to either on or off the light. It is of 6A. ONE-WAY SWITCH: it is a device used to switch on lights of 6A. 7/20 SWG (POWER WIRE): they are used in power purposes for duty electrical appliances. 7/20 means 7 numbers of wires Staircase Wiring Circuit Diagram - Electrical Technology In today basic electrical wiring installation tutorial, we will discuss step by step method of staircase wiring installation by using 2-way switches (SPDT = Single Pole Double Through Switch). Also, the same wiring circuit diagram can be used for 2-way lighting or controlling electrical appliances from two different places by using two-way switches. Two way Light Switch Connection - theoryCIRCUIT Mar 06, 2017Share on Tumblr Making ON/OFF light from two end is more comfortable when we consider stair case, two way light control is simple and easy to construct. Wiring diagram for Two way light To construct this setup we need 2-two way switches, here common terminal on one switch is connected with phase line and another switch common terminal connected to the lamp load, always [PDF] Wire Diagram Switch & Circuit The Light-House Build The approved circuit diagram will guide the wiring of lights, switches, and voltage source in the house. The prototypes allow students to quickly test switches on their series and parallel circuits. --. Time One 55 -min periodOne 55 Two 55-min periods, plus time (~1 week) for students to work on projects at home.