Certificate in AS 3000: 2007 Electrical Wiring Rules Update and Refresher (Standard AS / NZS 3000)
WHAT YOU WILL LEARN:
- How to apply the requirements of the AS/NZS 3000 Wiring Rules
- Understand these requirements and apply them in your day-to-day work
- Updates and changes to the AS/NZS 3000 Wiring Rules
- Importance of fulfilling the requirements for safe use of electrical equipment and systems
- Understand earthing and its importance in safety
- Simple methods of calculating to check the adequacy of conductors and protective earthing components to ensure safe operation
- How to perform periodic checks and verification measures to be carried out in an electrical installation as mandated by the standard
OVERVIEW
This course aims to familiarize you with 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.
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WHO THIS COURSE WILL BENEFIT MOST
- Instrumentation and Control Engineers
- Consulting Engineers
- Electrical Engineers
- Project Engineers
- Maintenance Engineers
- Electrical Contractors
- Safety Professionals
- Electricians
- Electrical Inspectors
- Power System Protection and Control Engineers
- Building Service Designers
- Data Systems Planners and Managers
- Electrical and Instrumentation Technicians
- Electrical Design Consultants
- Electrical Supervisors
COURSE OUTLINE
MODULE 1: INTRODUCTION AND OVERVIEW
Brief scope and contents of Australian Wiring Rules (AS/NZS 3000)
Evolution of electrical distribution systems
Selection and installation of electrical equipment and safety considerations
Selection and installation of wiring systems
Earthing and its importance in safety
Testing and verification
Precautions for special locations
Practical Exercise
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
Current limits of conductors based on insulation
Role of electrical protection
Calculating the demand of electrical systems for proper conductor sizing (as per AS/NZS 3000 Appendix - C)
Practical Exercise
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
Shock hazard by direct and indirect contact
Protective conductor
Equipotential bonding
Avoiding direct and indirect contact hazards
Practical Exercise
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)
Practical Exercise
MODULE 5: AS/NZS 3000 STANDARDSCOPE AND DEFINITIONS
Definitions
Alterations, additions and repairs alternative arrangements
Protection for safety
Design of an electrical installation
Selection of electrical equipment
Installation of electrical equipment
Inspection and testing
Practical Exercise
MODULE 6: SELECTION AND INSTALLATION OF SWITCHGEAR AND CONTROLGEAR
Devices for protection against indirect contact
Devices for protection against overcurrent
Protection against earth leakage current
Protection against overvoltage
Protection against undervoltage
Devices for isolation and switching
Switchboards
Practical Exercise
MODULE 7: SELECTION AND INSTALLATION OF WIRING SYSTEMS - PART 1
Types of wiring systems
External influences
Current-carrying capacity
Sizing of conductors
Voltage drop considerations in sizing
Electrical connections
Identification of wires and cables
Installation
Practical Exercise
MODULE 8: SELECTION AND INSTALLATION OF WIRING SYSTEMS - PART 2
Enclosure of cables
Underground wiring systems
Aerial wiring systems
Cables supported by a catenary
Emergency systems
Busbar trunking systems and rising mains
Earth sheath return system
Practical Exercise
MODULE 9: GENERAL REQUIREMENTS OF INSTALLATION
Electrical equipment requiring protection against injury from mechanical movement
Protection against thermal effects
Protection against explosion
Installation requirements of transformers, capacitors, etc.
Alternative and emergency power supply systems
Connection of electrical equipment
Practical Exercise
MODULE 10: REQUIREMENTS FOR EARTHING IN ELECTRICAL INSTALLATIONS
Earthing arrangements
Multiple Earthed Neutral (MEN) system
Earthing conductors
Earthing system components
Equipment earthing and equipotential bonding
Protection by electrical separation
Earthing requirements for other (nonelectrical) systems
Practical Exercise
MODULE 11: TESTING AND VERIFICATION REQUIREMENTS OF THE STANDARD
Visual inspection
Testing
Practical Exercise
MODULE 12: REQUIREMENTS FOR SPECIAL ELECTRICAL INSTALLATIONS OR LOCATIONS
Locations containing baths, showers or other fixed water containers
Swimming pools, paddling pools, and spa pools or tubs
Locations containing sauna heaters
Refrigeration rooms
Locations where general hosing down operations are carried out
Fountains and water features
Extra-low voltage electrical installations
High voltage electrical installations
Hazardous areas
Emergency areas
Practical Exercise
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