As a part of the am2 exam you will have to wire up a 2 way and intermediate lighting circuit with one light. Construction working of intermediate switch.
Apnt 159 Standard 3 Way Lighting Circuit With Intermediate
Two way lighting circuit with intermediate switch. Otherwise continue with the am2 exam guide. Intermediate switch diagram. A two way switch and an intermediate switch. The four terminals of intermediate switch construction and its operation are shown in fig below. That is when you have three switches controlling one light then the middle one needs to be an intermediate switch the others need to be two way. Here we have a 3 way switching lighting circuit sometimes called two way switching with intermediate.
The two way and intermediate switch will look the same on the front. 2 way switching means having two or more switches in different locations to control one lampthey are wired so that operation of either switch will control the light. Three way switching 3 wires. This arrangement is often found in stairways with one switch upstairs and one switch downstairs or in long hallways with a switch at either end. Usually the third wire passes the middle intermediate switch but is joined in a separate terminal block. The circuit is wired in twin and cpc cables twin and earth cable and 3.
An intermediate switch can however be implemented by adding appropriate external wiring to an ordinary six terminal dpdt switch or by using a separate dpdt relay. There is more than one way to do this depending of the type of cable available and on the installation requirements. Video explains the connection required within switches. This page shows it wired in the old cable colours if your house has the new colours you want to go here. This is also known as the conversion method since it is the easiest way to add a second light switch to an existing circuit. The hierarchy of switches.
Three wires between the two end switches probably using 3 core and earth cable. Follow this link if you are looking for a comprehensive step by step guide on two way and intermediate lighting circuit wiring. However the two way has 3 terminals on the back. An intermediate switch can be used as a one way or two way switch but is more expensive so would not normally be used for this. To make this circuit work we require two different types of switches. Again the names of the type of switches depends where in the world you live.
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. By connecting one or more 4 way intermediate switches in line with 3 way switches at either end the load can be controlled from three or more locations. Also how to wire two way and two way and intermediate switching. This allows a single light to be turned on or off from any of the switches.
Gallery of Two Way Lighting Circuit With Intermediate Switch
