As a part of the am2 exam you will have to wire up a 2 way and intermediate lighting circuit with one light. Here we have a 3 way switching lighting circuit sometimes called two way switching with intermediate.
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2 way intermediate switch wiring diagram. In a previous video i showed how a two way. The four terminals of intermediate switch construction and its operation are shown in fig below. I did not include grounding conductors on the 4 way switch wiring diagrams in order to keep them simple. 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. See tables 31416a b. Two cubic inches are required by the national electrical code for each 14 wire.
This video also shows how an intermediate switch works. This is the new method to make a 2 way switching connection as it is slightly different from the two wire control method. To wire a three way lighting circuit you will need 2 two way switches and an intermediate switch. 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. This page shows it wired in the old cable colours if your house has the new colours you want to go here.
Otherwise continue with the am2 exam guide. Construction working of intermediate switch. I have a diagram for this light switch wiring method on my 3 way switch page. Where 0 represents the off condition and 1 represents the on condition. How to connect 2 way switch wiring using three wire control. This method is commonly used now days as it is efficient than the two wire control system.
This allows a single light to be turned on or off from any of the switches.
Gallery of 2 Way Intermediate Switch Wiring Diagram
