Staircase Wiring I ANNA University I EP lab I Rajasekar Madhavan

Staircase Wiring Theory:
THEORY:
1. A two-way switch is installed near the first step of the stairs. The other two-way switch is installed at the upper part where the stair ends.
2. The light point is provided between first and last stair at an adequate location and height if the light is switched on by the lower switch. It can be switched off by the switch at the top or vice versa.
3. The circuit can be used at the places like a bedroom where the person may not have to travel for switching off the light to the place from where the light is switched on.

4. Two numbers of Two-way switches are used for the purpose. The supply is given to the switch at the short-circuited terminals.
5. The connection to the light point is taken from the similar short-circuited terminal of the second switch. Other two independent terminals of each circuit are connected through cables.

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PROCEDURE:
1. Give the connections as per the circuit diagram.
2. Verify the connections.
3. Switch on the supply.
4. Verify the conditions.