Three wire cable runs between the switches and the outlet. This method is commonly used now days as it is efficient than the two wire control system.
2 Way Switching Diywiki
Two way intermediate switch wiring diagram. Intermediate switch wiringwiring diagram. Three way switching schematic wiring diagram. In a previous video i showed how a two way. Two way switch can be operated from any of the switch independently means whatever be the position of other switchonoff you can control the light with other switch. Construction working of intermediate switch. By using these switches controlling light can be done from 3 different places.
See tables 31416a b. 3 way switched outlet wiring. This video also shows how an intermediate switch works. In that an intermediate switch is used in the middle of the 2 two way switches. As a part of the am2 exam you will have to wire up a 2 way and intermediate lighting circuit with one light. How to connect 2 way switch wiring using three wire control.
Where 0 represents the off condition and 1 represents the on condition. I have a diagram for this light switch wiring method on my 3 way switch page. In this diagram two 3 way switches control a wall receptacle outlet that may be used to control a lamp from two entrances to a room. Old multi point radial lighting diagram using junction boxes. 2 way light switch 3 wire system new harmonised cable colours 2 way switch 3 wire system old cable colours 2 way switch two wire control three way switching. This circuit is wired the same way as the 3 way lights at this link.
In an intermediate switch there are four terminals by which it changes the flowing of electric current from one circuit to another see fig 1 2 and also known as three way switchit has the ability to on and off the electric supply by two ways. The four terminals of intermediate switch construction and its operation are shown in fig below. Follow this link if you are looking for a comprehensive step by step guide on two way and intermediate lighting circuit wiring. There is more than one way to do this depending of the type of cable available and on the installation requirements. Two cubic inches are required by the national electrical code for each 14 wire. The intermediate switch includes four terminals where these terminals will change the flow of current from circuit to circuit.
I did not include grounding conductors on the 4 way switch wiring diagrams in order to keep them simple. 3 way light switching new cable colours 3 way light switch old cable colours. Otherwise continue with the am2 exam guide. To wire a three way lighting circuit you will need 2 two way switches and an intermediate switch. This is very similar to the two way switching circuit but with and additional intermediate switch introduced into the three wire control cable that links the two end light switches. This is the new method to make a 2 way switching connection as it is slightly different from the two wire control method.