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Lab 4

The document describes the steps to install a one-way switch to control a bell. It lists the materials used such as wires and a bell switch. It provides a wiring diagram and outlines the steps taken which include connecting the wires from the switch to the bell and testing the continuity of the circuit.

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36 views4 pages

Lab 4

The document describes the steps to install a one-way switch to control a bell. It lists the materials used such as wires and a bell switch. It provides a wiring diagram and outlines the steps taken which include connecting the wires from the switch to the bell and testing the continuity of the circuit.

Uploaded by

fadli
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
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PRELAB 4

Muhammad Khairi Bin Mohd Yusoff


DE 98571
Section: 03

Installing 1 Way Switch(S1), Control 1,


Bell(L1)
Prelab Questions:
1. Type of Equipment/Materials
Used: Material List
1. 2x1.5MM PVC/PVC WIRE BLACK AND RED
2. 2x1.5MM PVC/PVC WIRE GREEN FOR EARTH
3. BELL SWITCH
4. BELL
5. SCREW
Equipment
List
1. CUTTER
2. SCREWDRIVER
3. PLIER
2. Type of Testing Conducted: CONTINUITY TEST
3. Wiring Diagram /Schematic based on Figure 4.7 :

4. Step in Electrical Handling/Testing Is Conducted:


i. Strip 2X1.5MM wire using cutter.
ii. Connect red (live) wire from SP MCB to bell switch, L1.
iii. Drag red (live) wire from bell switch, L2 to bell, COM.
iv. Connect black (neutral) wire from bell to neutral busbar.
v. Connect green (earth) wire from earth busbar to bell switch and screw it in
wall. Drag green (earth) wire from bell switch to bell and screw it in wall.
vi. Test the continuity of the circuit using multimeter.

WIRING 11

1.Type of Equipment and Material Used:-


Material List
1.2x1.5MM PVC/PVC WIRE BLACK AND RED
2.2x1.5MM PVC/PVC WIRE GREEN FOR EARTH
3.HEATER SWITCH
4.HEATER
5.SCREW

Equipment List
1.CUTTER
2.SCREWDRIVER
3.PLIER

2.Type of Testing Conducted: Continuity Test

3.Wiring Diagram:

HEATER
SSO RING

4.Step in Electrical Handling/Testing Is Conducted:

✓ Strip 2X1.5MM wire using cutter


✓ use the green cable from the DB to the water heater
✓ use the red cable from the mcb to the live rccb
✓ use the black cable from taskbar neutral to rccb neutral
✓ the red cable in the db is brought to the water heater switch.
✓ the black cable in the db is brought to the water heater switch
✓ the red cable from the switch is routed to the water heater
✓ the black cable is connected from the switch to the water heater
✓ Test the continuity of the circuit using mult

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