Elements of Electrical EngineeringName : Harsh ParmarBranch : FYIT1 A Batch

Id No : 16BEITG005

Staircase wiringANDTube light Wiring

Staircase wiring

How to Control a Lamp / Light Bulb from Two places Using Two Way switches For Staircase Lighting Circuit

Why Two way light switch wiring is important in Staircase circuit

Staircase circuit connection wiring is different form one way control light switch and we did not use one way switches in this connection because we need to controlled or switch off/on the lamp form both places top and down. For that we control lamp form two places using two way switches. In short this connection we use to save energy and to control or switching lamp / light bulb form both places

How Two way control light bulb connection is works

In this wiring connection we use two way switches in which we have three terminals, in these terminals one is common and two for connection. we can use it for many connection using different connection methods. For example we use it changing flow of current positive to negative etc.

How To Control a Lamp / Light bulb form two places using 2 way switches

The circuit of controlling lamp form two way switch is simple, in this connection we use two way switches, for this first of all connect the neutral wire to the lamp or bulb socket and then connect the phase or Line wire to the common terminal of the first two way switch, the do connection between the other terminals of first and 2nd switch terminals with one another as shown in below diagram. In last connect a wire between lamp socket 2nd terminal and 2nd switch common terminal as shown below image plus Diagram

Diagram

This is a stair case circuit diagram by which we can control a bulb from two different places. We can switch OFF and Switch ON the bulb from both switches at the same time. in other words we can control (OFF or ON) the bulb from upper and lower switches.

Tube light Wiring

Tube light is not connected in the supply main directly. Although it operates at 230 V, 50 Hz, some auxiliary electrical components are used to insert in this installation to support the tube light operational principle. The total electrical components for single tube light installation are

Choke: it is electromagnetic ballast or electronic ballast.

Starter: Small neon glow up lamp

Switch

Wires

Wiring Diagram of Single Tube Light Installation with Electromagnetic Ballast

How to Install a Single Tube Light with Electromagnetic Ballast

From the junction box the neutral wire is not taken out to the switch board, rather it is taken out from the junction box and carried out to the port 2 of the tube light, as per figure above. A wire connects port 2 and pin 1 of the terminal 2 already. So the neutral wire is continued from port 2 to pin 1 of terminal 2.

The live wire or phase is taken from the junction box to the switch board. The live wire is connected to the one terminal of the switch. From another terminal of the switch the wire is carried out up to tube light set up and connected to port 1.

One terminal of choke or ballast is connected to port 1 and another terminal is connected to pin 1 of terminal 1.

One end of a starter is connected to pin 2 of terminal 1 and another end of the starter is connected to the pin 2 of terminal 2.

As no starter is used in case of electronic ballast application, wiring diagram is little bit changed.

Electronic ballast has six ports, two ports out of six ports are for input and rest four ports are for output ports. Suppose they are named port 1 and port 2 for input; port 3, port 4, port 5 and port 6 are for output of the ballast.

From the junction box the neutral wire is taken out from the junction box and carried out to the port 2 of the electronic ballast to connect, as per figure above.

The live wire or phase is taken from the junction box to the switch board. The live wire is connected to the one terminal of the switch. From another terminal of the switch, the wire is carried out up to tube light set up and connected to port 1 of the electronic ballast.

•Let, the color of wires from port 3 and port 4 are black, and from port 5 and port 6 are red or any other color.

•Port 3 and pin 2 of terminal 1 and Port 4 and pin 1 of terminal 1 are connected.

•Port 6 and pin 2 of terminal 2 and Port 5 and pin 1 of terminal 2 are connected.

[NB: incoming voltage of port 1 and port 2 of the electronic ballast is only 230 V, 50 Hz. But output ports 3, 4, 5 and 6 give very high voltage at the time of switch ON, may be 1000 V at 40 kHz or more. When tube light starts to operate, output ports voltages become below 230 V at 40 kHz or more.]