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(Australia and New Zealand only) Online training in electrical wiring rules suitable for Engineers and Technicians

This course covers the requirements laid down in the standard AS/NZS 3000, commonly known as the Australia - New Zealand Wiring Rules. For those installations covered in the scope of this standard, its provisions are mandatory and must be followed. Any engineer involved in planning and design of electrical systems, their installation or maintenance must have a clear idea about the various requirements contained in the standard.

The primary purpose of this standard, like many of its various other equivalent national standards, is to ensure the safety of personnel against the dangers arising from the use and handling of electrical equipment and appliances. The introductory modules of this course outline the basic principles that should be understood for a better appreciation of the standard. These include modules which illustrate the calculation for the power demand of a system and the computation of earth fault currents as discussed in the appendices of the standard. These are informative in nature and are very important in making an electrical system safe for operation. The actual provisions of the standard are then discussed in detail in the subsequent modules.

What you will learn:

  • Understand basic mechanical engineering concepts such as force, work, power, moments and torques
  • Identify the various balanced and unbalanced forces and loads in a system
  • Determine the importance of common engineering material properties in relation to component life and failure
  • Perform basic design for static strength
  • Apply the theory and principles governing the operation of common mechanical drive components
  • Select appropriate gears and bearings
  • Understand the underlying principles governing the operation of common mechanical prime movers and actuators
  • Distinguish between the various heat transfer mechanisms and understand the principles governing the design of heat-exchangers
  • Perform simple design and selection of piping systems and related components
  • Monitor, control and analyse vibrations
  • Select the appropriate manufacturing system and understand the principles of design for manufacturing
  • Initiate and set up an effective but simple inspection and maintenance program (including lubrication)
  • Appreciate the need for standardisation and understand the common applicable mechanical standards and codes

Course Outline

MODULE 1: INTRODUCTION AND OVERVIEW

  • Brief scope and contents of Australian Wiring Rules (AS/NZS 3000)
  • Selection and installation of electrical equipment and safety considerations
  • Selection and installation of wiring systems
  • Earthing and its importance in safety
  • Testing and verification

MODULE 2: INSULATION OF ELECTRICAL SYSTEMS AND ITS ROLE IN SAFETY

  • Functions of electrical insulation
  • Air as an insulator
  • Solid and liquid dielectrics
  • Insulation class and temperature ratings
  • Role of electrical protection
  • Calculating the demand of electrical systems for proper conductor sizing (as per AS/NZS 3000 Appendix - C)

MODULE 3: EARTHING OF ELECTRICAL SYSTEMS

  • The need for earthing of electrical systems
  • At the source (system earthing)
  • At the load (protective earthing)
  • Methods adopted for system earthing
  • Protective conductor
  • Equipotential bonding

MODULE 4: EARTH FAULT DETECTION AND PROTECTION

  • Earth fault sensing methods
  • Calculation of earth fault current
  • Earth fault loop impedance
  • Limits of LV feeder lengths for proper earth fault detection (as per AS/NZS 3000 Appendix - B)


MODULE 5: AS/NZS 3000 STANDARD - SCOPE AND DEFINITIONS

  • Definitions
  • Protection for safety
  • Design of an electrical installation
  • Selection of electrical equipment
  • Installation of electrical equipment


MODULE 6: SELECTION AND INSTALLATION OF SWITCHGEAR AND CONTROL GEAR

  • Devices for protection against indirect contact
  • Devices for protection against overcurrent
  • Protection against earth leakage current


MODULE 7: SELECTION AND INSTALLATION OF WIRING SYSTEMS - Part 1

  • Types of wiring systems
  • Current-carrying capacity
  • Sizing of conductors
  • Voltage drop considerations in sizing
  • Installation


MODULE 8: SELECTION AND INSTALLATION OF WIRING SYSTEMS - Part 2

  • Enclosure of cables
  • Aerial wiring systems
  • Busbar trunking systems and rising mains
  • Earth sheath return system

MODULE 9: GENERAL REQUIREMENTS OF INSTALLATION

  • Electrical equipment requiring protection against injury from mechanical movement
  • Protection against explosion
  • Connection of electrical equipment

MODULE 10: REQUIREMENTS FOR EARTHING IN ELECTRICAL INSTALLATIONS

  • Earthing arrangements
  • Multiple Earthed Neutral (MEN) system
  • Equipment earthing and equipotential bonding

MODULE 11: TESTING AND VERIFICATION REQUIREMENTS OF THE STANDARD

  • Visual inspection
  • Testing

MODULE 12: REQUIREMENTS FOR SPECIAL ELECTRICAL INSTALLATIONS OR LOCATIONS

  • Locations containing baths, showers or other fixed water containers
  • Extra-low voltage electrical installations
  • High voltage electrical installations
  • Hazardous areas
  • Emergency areas

 

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