Page 268 - CITS - Electrician - Trade Practical

ELECTRICIAN - CITS

MODULE 16 : Domestic Appliances

EXERCISE 101 : Repair and test various domestic

appliances and equipment

Hot plate

Objectives: At the end of this exercise you shall be able to
• to carry out test, repair and maintenance work on hot plate
• to carry out test, repair and maintenance work on electric iron
• to carry out test, repair and maintenance work on storage type water heater
• to carry out test, repair and maintenance work on room air cooler
• to carry out test, repair and maintenance work on pedestal fan
• to carry out test, repair and maintenance work on table fan
• to carry out test, repair and maintenance work on ceiling fan
• to carry out test, repair and maintenance work on electric mixie
• to carry out test, repair and maintenance work on semi-. automatic washing machine.
Requirements

Tools/Instruments
• Combination pliers 150 mm - 1 No. • Pedestal fan 60W, 240V - 1 No.
• Screw driver 100 mm - 1 No. • Table fan 60w,240V - 1 No.
• D.E. spanner set 5 – 20 mm - 1 Set. • Ceiling fan 60w,240V - 1 No.
• Electrician knife 75 mm - 1 No. • Mixer 750 W/250 V - 1 No.
• Side cutter 150 mm - 1 No. • Rotary switch 6A/250V - 1 No.
• Connector screw driver 100 mm - 1 No. • External growler 230V - 1 No.
• Multimeter Digital - 1 No. • semi-automatic washing
• Megger 500 V - 1 No. machine 5kg, 230V - 1 No.
Equipment/Machines Materials
• Hot plate 1500 W, 250 V - 1 No. • PVC Copper wire 1.5mm2 - 6 m.
• Test lamp 60W, 250 V - 1 No. • 3 core cable 1100V - 6 m.
• Electric iron 750W/230V - 1 No. • Heating element 1500 W, 250 V - 1 No.
• Heating element - Electric • Capacitor 2µf, 440V - 1 No.
iron 750W/230V - 1 No. • Rotary switch 5A, 230V - 1 No.
• Geyser 1500 W,230 V - 1 No. • Regulator 240V - 1 No.
• Room air cooler 170W / 230V - 1 No.
Procedure

TASK 1:

1 Disconnect the cable from the socket.
2 Remove the two screws and remove the plate from the base.
3 Disconnect the cable from the heating element.

4 Remove the heating element.
5 After inspection and necessary repair re assemble the heater in the reverse order
6 Visually inspect the heating element for any burn indication.
7 Replace the heating element if found defective, with heating element of same specifications.

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