Evidence shall show that knowledge has been acquired of safe working practices and installing wiring and accessories for low voltage circuits. All knowledge and skills detailed in this unit should be contextualised to current industry standards, technologies and practices. KS01-EG103A Installation of wiring systems Evidence shall show an understanding of the installation of wiring systems that comply with standards to an extent indicated by the following aspects: T1 Standards, codes and requirements applicable to the installation of wiring systems encompassing: Cables and methods of mechanical protection and support Protection against and from other services. Prohibited cable locations Building codes affecting the installation of cables in buildings, structures and premises (limitation on penetration of structural elements, maintenance of fire protection integrity, and wiring above suspected ceilings) Issues affecting electrical installations in heritage buildings and premises (limitation on penetration of structural and finished elements, accessing cable routes, types and colour of exposed accessories). T2 Use of other installation standards called up by the Wiring Rules for special situations encompassing: standards that apply to Electromedical treatment areas. additional requirements for construction and demolition sites. Relocatable installations and their site supply additional requirements for caravan park. additional requirements for marinas and pleasure craft at low voltage. additional requirements for shows and carnivals. T3 Hazardous areas encompassing: Conditions that apply in an areas that require them to be classified as a ‘Hazardous area’. Responsibility for classifying a hazardous area Awareness of standards called up by the Wiring Rules for selection of equipment and installations in Hazardous areas. (AS/NZS 3000 requirements for hazardous areas). T4 Requirement for the installation of cables and accessories in damp situations and ELV installations encompassing: restricted zones around baths, showers, fixed water containers, pools, sauna heaters and fountains/water features for given installations. selecting equipment suitable for installation in given damp situations. voltage range that defines extra-low voltage. 'Separated extra-low voltage (SELV) system' and a 'Protected extra-low voltage (PELV) system". AS/NZS 3000 requirements for selecting extra-low voltage systems and devices for a range of installations and conditions. T5 Aerial cabling encompassing: Describe the types of aerial cabling. State the AS/NZS 3000 and local supply authority requirements for aerial cabling. Termination of aerial cables in accordance with AS/NZS 3000 and local requirements. installation of consumers mains for connection via overhead consumers terminals in accordance with AS/NZS 3000 and local requirements. Testing of installed cables compliance with Australian Standards T6 Underground cabling encompassing: Describe permissible underground cabling systems. Identify other underground services. State the AS/NZS 3000 and local supply authority requirements for underground cabling. List the advantages and disadvantages of underground wiring systems selection of underground consumers mains in accordance with AS/NZS 3000 and local requirements T7 Techniques for installing cables and wiring systems encompassing: Typical cable routes through buildings, structures and premises. Application of wiring accessories Drawing-in, placing and fixing of cables Cable and conductor terminations Maintaining fire rating integrity. Inspecting and testing installed and terminated cables to ensure they comply with continuity and insulation resistance and are safe to connect to the supply. |