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PAST GCE QUESTIONS AND SOLUTIONS

 GCE PAST QUESTIONS AND SOLUTIONS

TECHNICAL GCE ITVE and GCE ATVE Questions and Answers

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GCE QUESTIONS AND SOLUTIONS FOR ELECTRICAL POWER SYSTEMS

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Intermediate switch connection and wiring diagram

Intermediate switch An intermediate switch is a switch which permits the control of a lighting point from three positions. In order to control this lighting point from the three positions, the intermediate switch is connected together with two other 2-way switches. Application: it can be used in lighting a room or hall having 3 entrances , it can also be used in long corridors and staircases. We shall be looking at these connections. Connection diagram of intermediate switching Below is an illustration of the connection. The brown lines indicated on the diagram are the switching contacts. The switch labelled 2 is an intermediate switch . The figure below is the configuration of an intermediate switch. The switch labelled 1 and 3 in the first diagram are two-way switches.  Click here to know more about two-way switches . ON and OFF positions of intermediate switching ON positions OFF positions Staircase wiring layout using an inte...