Bell And Alarm Installation

Electrical Installation Technology · Level 4  ·  5 Chapters

Compiled by: Peter Muriuki

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What Bell And Alarm Installation covers

Bell and Alarm Installation, part of Electrical Installation Technology Level 4, teaches you to read bell circuit diagrams, wire the system and keep it working. You begin with bell and alarm circuits: their purpose and applications, symbols, mapping the wiring system and the types of bell circuit. Installation follows, covering safety measures, tools and instruments, cable joints and termination, cable management and installing the system. A separate outcome deals with the components themselves, their power supply and fitting each one. Testing covers visual inspection, then continuity, polarity, and insulation and earth resistance checks. You finish with maintenance: inspection, preparing materials and tools, maintenance activities, system tests and keeping maintenance records.

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Careers after Bell And Alarm Installation

Bells and alarms are fitted in homes, schools, shops and offices, and this unit prepares you to install them and service them afterwards.

  • Security and alarm companies in Thika - You install alarm circuits, power supply and components to the design and test them before the customer signs off, then keep a record of the visual inspection. You are paid as an installer.
  • Institutional maintenance teams in Kericho - You service bell circuits, replace faulty components and update maintenance records. You earn a monthly salary. You also work from the diagrams and symbols to trace faults.
  • Building services contractors in Ruiru - You run cable management and wiring for bell and alarm systems alongside the main electrical work, and you test each circuit before the main contractor hands over the building.
  • Self-employed alarm installers in Bungoma - You supply and fit small bell and alarm systems for shops and homes and return to maintain them. You earn per installation and per maintenance visit.

Reading the circuit diagram before you wire keeps faults out of the finished system.

Chapters

What Bell And Alarm Installation covers: 26 main topics in 5 chapters

1. Interpret Bell and Alarm Installation Drawings

  1. 1.1 Bell and Alarm Circuits
  2. 1.2 Definition, Purpose and Applications of Bell and Alarm Circuits
  3. 1.3 Bell and Alarm Symbols
  4. 1.4 Mapping Wiring System
  5. 1.5 Types of Bell Circuits
  6. 1.6 Interpreting Bell Circuit Diagrams

2. Install Bell and Alarm Wiring System

  1. 2.1 Safety measures
  2. 2.2 Electrical tools, equipment, and instruments
  3. 2.3 Use, care and maintenance of tools, equipment, and instruments
  4. 2.4 Electrical cable, joints and termination
  5. 2.5 Cable management system
  6. 2.6 Installation of bell and alarm systems
  7. 2.7 Bell and alarm components

3. Install Bell and Alarm Components

  1. 3.1 Bell and Alarm Components
  2. 3.2 Electrical Power Supply Installation
  3. 3.3 Bell and Alarm Components Installation

4. Test Bell and Alarm Installation

  1. 4.1 Visual Inspections of Bell and Alarm Systems
  2. 4.2 Continuity Test
  3. 4.3 Insulation Resistance Test
  4. 4.4 Polarity Test
  5. 4.5 Earth Resistance Tests

5. Maintain Bell and Alarm Installation

  1. 5.1 Bell and Alarm Inspection
  2. 5.2 Identification and Preparation of Maintenance Materials, Tools and Equipment
  3. 5.3 Bell and Alarm System Maintenance Activities
  4. 5.4 System Tests
  5. 5.5 Maintenance Records Documentation

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Beyond the syllabus

Other units in Module II