Scribd
Upload
7K views3 pages

Ex. No.: 07: Wiring Circuit For A Single Lamp and A Fan With Regulator

1) The document describes the wiring circuit for controlling a lamp, fan, and external device socket using a switch box. Materials like lamps, switches, wires, and tools are listed. 2) The procedure involves drawing a circuit diagram, installing switches and sockets, connecting wires according to the diagram, and testing the circuit. 3) An observation table shows the expected and observed conditions for combinations of switch positions and device operations. The results matched expectations, demonstrating understanding of the internal switch box wiring.

Uploaded by

aman
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
7K views3 pages

Ex. No.: 07: Wiring Circuit For A Single Lamp and A Fan With Regulator

1) The document describes the wiring circuit for controlling a lamp, fan, and external device socket using a switch box. Materials like lamps, switches, wires, and tools are listed. 2) The procedure involves drawing a circuit diagram, installing switches and sockets, connecting wires according to the diagram, and testing the circuit. 3) An observation table shows the expected and observed conditions for combinations of switch positions and device operations. The results matched expectations, demonstrating understanding of the internal switch box wiring.

Uploaded by

aman
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 3

WIRING CIRCUIT FOR A SINGLE LAMP AND A FAN WITH REGULATOR

Ex. No.: 07
Aim
To understand the internal wiring of a switch box to control a lamp, fan and an external
gadget connected to a 5-pin socket.

Materials Required

S. No. Name of the apparatus Range / Type Quantity


1 Incandescent Lamp 230 V, 25 W 1 Nos.
2 Lamp holder 230 V, Level 3 Nos.
3 Ceiling fan 230V, 60W 1 No.
4 Switch Box 12” x 4” 4 Nos.
5 Fan regulator 230V 1 No.
6 1 way switch 230 V, 5 A 3 Nos.
7 P. V. C. casing capping ¼” As required
8 Wooden Board 4’ x 3.5‘ 1 No.
9 Ceiling rose 230 V 1 Nos.
10 Wires 1 sq. mm” As required

Tools Required

Screw driver, Wire stripper, Hacksaw, combination plier, drilling machine, electrician knife

Procedure
1. Collect the materials required for this experiment.
2. Draw the layout of the given circuit diagram on the work board.
3. Fix the switches, regulator, indicator and 5-pin socket by using necessary tools in the switch board front
panel.
4. Do the internal connections using wires of required size as per the circuit diagram.
5. Test the circuit and note down the observations.

Precautions

1. Energize the circuit with the presence of Lab instructor / Faculty.


2. No part of a live circuit should be touched by the bare hand.
3. Keep the body, or any part of it, out of the circuit.
4. Keep the work area and workbench clear of items not used in the experiment.
5. When disassembling a circuit, first remove the source of power.

Page | 42
Fuse Rating Calculations

Total Power drawn by the circuit = 60+40+100


watts Voltage of the circuit = 230 volts
P = V I COS Ø
P = V x I x 1 (Assuming COS Ø = 0.8 for resistive load)
Current in the circuit (I) = power (P) / (Voltage (V) x COS Ø)
= 200 W / (230 V x 0.8) = 1.0869 A.
Fuse rating of the circuit= rounding off the current to the nearest 5 =
5A (Normally fuses are available in the ratings of 5A, 10A and etc.)

Wiring Diagram – Switch Board (internal)

Page | 43
Circuit Diagram

Observation

Expected conditions Observed conditions


Conditi
on No
Indi Ext. Indi Ext.
S1 S2 S3 Fan Lamp S1 S2 S3 Fan Lamp
cator Load cator Load
1 ON OFF OFF ON ON OFF OFF ON OFF OFF ON ON OFF OFF
2 OFF ON OFF ON OFF ON OFF OFF ON OFF ON OFF ON OFF
3 OFF OFF ON ON OFF OFF ON OFF OFF ON ON OFF OFF ON
4 ON ON OFF ON ON ON OFF ON ON OFF ON ON ON OFF
5 OFF ON ON ON OFF ON ON OFF ON ON ON OFF ON ON
6 ON OFF ON ON ON OFF ON ON OFF ON ON ON OFF ON
7 ON ON ON ON ON ON ON ON ON ON ON ON ON ON

Result
The Values arrived through Expected and Observed Conditions are same.
Inference
Through this experiment I came to know how the wiring in the real-life houses is being done
and I came to know the Internal Wiring of a Switch Box to control a Lamp, Fan and an External
Gadget Connected to a Socket.

NAME: AMAN SRIVASTAVA


REG. No.: 21BCE0777

You might also like