DOMESTIC WIRING

LC-1: Identify Lights and Lighting Circuits

Overview:

In this module you will be taught how to identify lights and lighting circuits, you will also be taught how to install and maintain different lamps as this is the basic function of an electrician

Key and critical concepts which you will learn:

  • Identify and describe the operation of two types of lamps that do not require control gear to operate.
  • Identify and describe the operation of five types of lamps that require control gear to operate.
  • Draw the wiring diagrams of light circuits for each type of lamp and control gear, where appropriate, and wire the circuits.
  • Troubleshoot and maintain lighting circuits.

Tools, consumables, machinery and equipment required:

  • Module book / learning material
  • Pen
  • Booklet to make notes

Related modules:

  • Reading circuit diagrams (EC-1)
  • Using different measuring instrument (TI-1)

Application:

  • We are using different type of lamps to light up our homes, domestic and industrial use

Additional resources

  • Subject matter experts
  • In-company Standard Operating Procedures
  • SANS 10142-1 for the Wiring of Premises

EC-1: Wire Circuits

Overview:

Wire Circuits

Key and critical concepts which you will learn:

You will be learning towards the outcome:

  • Wire and test a relay control circuit.
  • Wire and test a relay and timer control circuit.
  • Wire specified circuits and use truth tables to fault find the circuits.

Tools, consumables, machinery and equipment required:

  • Relay wiring panel (circuit breaker, 3 relays, 3 lamps, bell, 3 toggle switches, connecting wires)
  • Panel with stop, start, emergency stop, relay, timer, power supply, load
  • Circuit diagram
  • Different timers
  • Thermal timers.
  • Pneumatic timers.
  • Electronic timers.
  • Mechanical timers.
  • Motor driven (synchronous) timers.
  • Measuring instrument, multimeter

Related modules:

  • TI-1
  • CW-T
  • EU-T
  • Lock out procedure

Application:

  • Electrical controls systems

Additional resources:

  • In-company Standard Operating Procedures
  • Subject matter experts
  • Electrical trade theory
  • SANS 10142-1 for the Wiring of Premises

LS-1&2: Light Switching

Modules: LS-1 & LS-2

Overview:

In this module you will be taught how to connect lamps that includes single way switching, lights switching from two points, and lights switching from three or more points which is important for your basic foundational knowledge as we use lights on daily basis

Key and critical concepts which you will learn:

  • Recall the most commonly used symbols that are used in circuit diagrams.
  • Draw and wire a two-way and intermediate switching circuit.
  • Test the circuit with a multimeter.

Tools, consumables, machinery and equipment required:

  • Module book / learning material
  • Pen
  • Booklet to make notes

Related modules:

  • Wire a panel (CW-T)
  • Use Electrical Test Instruments (TI-1)

Application:

  • Domestic and industrial where you need to connect lamps and control them either two way switching or three-way in a passage etc.

Additional resources

  • Subject matter experts
  • In-company Standard Operating Procedures
  • Electrical Trade Theory
  • SANS 10142-1 for the Wiring of Premises

CW-T: Wire A Panel

Overview:

In this module you will be taught how to terminate a conductor, using conductor strips, wiring a panel neatly and making it safe according to the regulating standards SANS 10142-1

Key and critical concepts which you will learn:

  • Join conductors by using connectors and ferrules.
  • Prepare conductor ends for fastening onto panel (using lugs or by looping the ends).
  • Connect conductors onto a panel in the correct way.
  • Select the correct conductors (size and colour) for specific loads.
  • Wire a single-phase load panel according to a given wiring diagram.

Tools, consumables, machinery and equipment required:

  • Module book / learning material
  • Pen
  • Booklet to make notes

Application:

  • Any electrical work environment where you have to connect, join or terminate conductors

Additional resources

  • Subject matter experts
  • In-company Standard Operating Procedures
  • SANS 10142-1 for the Wiring of Premises

CW-1: Construct and Wire Installations

Overview:

In this module you will be taught how to work and apply safe work practices and procedures in your day to day duties working as an electrical learner in the electrical environment

Key and critical concepts which you will learn:

  • Bend and install metal and PVC conduit wire way systems to given layouts.
  • Install wire into wire way systems according to the needs of the electrical layout.
  • Draw the circuit of a given single-phase distribution board, and then wire and connect it.
  • Terminate and install alternative wiring systems such as “flat twin and earth” and “surfix” cable.

Tools, consumables, machinery and equipment required:

  • 20mm PVC conduit
  • 20mm steel galvanised bosal pipe
  • 2,5mm suffix cable
  • 40X40mm PVC trunking
  • 3 core armoured cable
  • Distribution board with neutral and earth bar
  • Obstruction +/- 70mm X70mm
  • Circuit breakers
  • Single phase earth leakage
  • Blanking covers
  • Saddles (8mmround, 20mm PVC)
  • Light switches, 1-lever, 2-way with enclosures
  • 16A socket outlet with enclosures
  • Lamp holders
  • Selected round boxes and inspection T pieces (PVC)
  • No 0 cable glands
  • N 0 compression glands
  • Screws
  • A board 2mX 2m

Related modules:

  • Use hand skills (HM-1)

Application:

  • Any electrical work environment industrial, domestic where you are expected to do wiring of the installation

Additional resources:

  • Subject matter experts
  • In-company Standard Operating Procedures
  • SANS 10142-1 Code of Practice for the Wiring of Premises

IT-1: Test A Single Phase Installation

Overview:

In this module you will be taught how to correctly test and identify faults on a single phase installation

Key and critical concepts which you will learn:

  • Correctly perform all electrical tests on a single-phase installation, as required by the regulations contained in the SANS Code of Practice for the Wiring of Premises.
  • Do a mechanical inspection as required by the regulations contained in the SANS Code of Practice for the Wiring of Premises.

Tools, consumables, machinery and equipment required:

  • Insulation resistance tester
  • Loop tester
  • 1 phase Earth leakage tester
  • Multimeter
  • Single phase installation board completely wired or a panel

Related modules:

  • Use Electrical measuring instrument (TI-1)
  • Lock out procedure (LOP)

Application:

  • Domestic installations and industrial installations

Additional resources

  • Subject matter experts
  • In-company Standard Operating Procedures

EM-2: Connect a Three Phase Energy Meter

Overview:

In this module you will be taught how to connect the three phase energy meter, the methods used to connect it into a circuit

Key and critical concepts which you will learn:

  • Draw the circuit diagram to show how an energy meter is connected into a circuit.
  • Connect an energy meter into a circuit according to the wiring diagram.

Tools, consumables, machinery and equipment required:

  • Multimeter
  • Three phase energy meter
  • Panel with a three phase energy meter
  • Live, neutral and earth conductors
  • Load (Lamp / element)
  • Safety glasses

Related modules:

  • Using of measuring instruments (TI-1)
  • Use of Electrical measuring instrument (EMT-1)
  • Wire panel (CW-T)

Application:

  • Any electrical work environment you need to register the amount of energy consumed in kilowatt-hours by a specific load
  • Domestic and Industrial

Additional resources:

  • Subject matter experts
  • In-company Standard Operating Procedures
  • SANS 10142-1 for the Wiring of Premises

EL-T: Explain Single Phase Earth Leakage Protection Circuits

Overview:

This module deals with single phase earth leakages. You will be taught how the safety system works and how it trips an electrical circuit when there is a leakage of current to earth.

Key and critical concepts which you will learn:

  • Explain the dangers of electric current flowing through the human body.
  • Explain the necessity for good Earthing of electrical installations.
  • State the reason for installing earth leakage protection.
  • Explain, with the aid of circuit diagrams, the operation of two types of single-phase core balance relays in electrical circuits

Tools, consumables, machinery and equipment required:

  • Module book / learning material
  • Pen
  • Booklet to make notes
  • Different types of earth leakage units
  • Subject matter experts

Related modules:

  • None

Application:

  • This is used on day to day on any electrical work environment where you would be required to protect people equipment against any earth leakage faults.

Additional resources:

  • Subject matter experts
  • In-company Standard Operating Procedures

EL-T-1: Explain Three Phase Earth Leakage Protection Circuits

Overview:

This module deals with three phase earth leakages. You will be taught how the safety system works and how it trips an electrical circuit when there is a leakage of current to earth.

Key and critical concepts which you will learn:

  • Explain the principle of operation of a three-phase core balance earth leakage relay.
  • Name and briefly describe the operation of the three types of commonly used earth leakage protection units discussed in this module.
  • Explain what is meant by the terms “sensitivity” and “kA rating” of an earth leakage protection unit.
  • Draw circuit diagrams to explain how an MS1 / MS2 relay, and a core balance relay with separate core are connected in a circuit.
  • Explain what a circuit breaker is, what is meant by the term “breaking capacity” of a circuit breaker, and name two types of overloads used in circuit breakers.

Tools, consumables, machinery and equipment required:

  • Module book / learning material
  • Pen
  • Booklet to make notes
  • Different types of earth leakage units
  • Subject matter experts

Related modules:

  • EL-T

Application:

  • This is used on day to day on any electrical work environment where you would be required to protect people equipment against any earth leakage faults.

Additional resources

  • Subject matter experts
  • In-company Standard Operating Procedures

EM-1: Connect Single Phase Energy Meter

Overview:

In this module you will be taught how to connect the single phase energy meter, the methods used to connect it into a circuit

Key and critical concepts which you will learn:

  • Draw the circuit diagram to show how an energy meter is connected into a circuit.
  • Connect an energy meter into a circuit according to the wiring diagram.

Tools, consumables, machinery and equipment required:

  • Multimeter
  • Single phase energy meter
  • Panel with a single phase energy meter
  • Live, neutral and earth conductors
  • Load (Lamp / element)
  • Safety glasses

Related modules:

  • Using of measuring instruments (TI-1)
  • Use of Electrical measuring instrument (EMT-1)
  • Wire panel (CW-T)

Application:

  • Any electrical work environment you need to register the amount of energy consumed in kilowatt-hours by a specific load
  • Domestic and Industrial

Additional resources

  • Subject matter experts
  • In-company Standard Operating Procedures
  • SANS 10142-1 for the Wiring of Premises