ABSTRACT
There are many situations that require a lighting point to be controlled by more than one switch. An example of this would be in a dwelling that has stairs and the landing/hall light needs to be switched at the bottom and the top of the stairs. This type of switch circuit is known as two-way switching. A junction box system used in this type of circuit would be fine and can be connected just as the circuit shows. Where the system is a three-plate loop in system the most common type of two-way wiring circuit used is an extended two-way circuit. In this type of circuit all that is required is that three-core cable is run from the one-way switching position to the second switch position. 'Intermediate switching' is the term given to a system where the same light or lights can be switched on and off from a number of positions.
