8) Essential Knowledge and Associated Skills (EKAS): This describes the essential skills and knowledge and their level, required for this unit. Evidence shall show that knowledge has been acquired of inspecting, maintenance and restoration of overhead distribution network infrastructure. All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies. KS01-TDP15A Network infrastructure LV overhead distribution Evidence shall show an understanding of the network infrastructure inspection, maintenance and restoration of energised low voltage overhead distribution to an extent indicated by the following aspects: T1 Powerline safety practices encompassing: Protective apparatus and apparel for linework - responsibilities for the selection, use, maintenance and storage of protective apparatus and apparel and the types of protective apparatus and apparel used for the line worker Requirements for the use of ladders - carrying, erecting, collapsing and lowering different types of extension ladder against a standing pole, maintenance checks on different types of ladders, renewal of extension ropes and the safety issues relating to clearances from overhead conductors Requirements for climbing and working aloft - methods used to identify a pole is safe to climb, methods used to inspect a line worker’s body belt, application of knots and hitches appropriate to the requirements of a line worker, height safety principles including personal fall protection, prevention and related requirements, and the practical procedure of climbing an overhead structure and fitting a pole chair Traffic management - purpose of traffic management and a line worker’s responsibilities in accordance with relevant statutory requirements and electricity supply industry requirements, demonstration of the procedure used to provide an effective traffic management scheme and the use of a two-way radio Control of small fires - identification, selection and operation of the appropriate extinguishing mediums for various types of fires, general fire prevention methods and the precautions for personal protection when fighting small fires Rescue victims from heights and confined spaces - planning, identifying, the procedures, and establishing responses, developing techniques, involvement of external emergency services and practical demonstration/rehearsals of rescuing a person from heights and from confined spaces and emergency procedures for the rescue of an electric shock victim including CPR Requirements for aerial linework - planning, establishing and implementing relevant aviation authority clearances, determining system requirements, aircrew familiarisation with network operations and equipment, requirements for effective communications operations for aerial work. T2 Low voltage - energised low voltage equipment working practices for substations encompassing: Standards, codes, Commonwealth, State/Territory/local government legislation, supply authority regulations and or enterprise requirements Safety precautions specific to working on or near energised low voltage conductors - safe working practices and procedures, identification of hazards, assessment and control of OHS risks, types, selection, maintenance and use of personal protective equipment. Work on or near energised LV conductors - types and function of specialised tools, safe working practices when using specialised tools, methods of using specialised tools, safe procedures for work on panels and in cubicles on or near energised LV conductors, release and rescue procedures for work on or near exposed energised LV conductors. T3 Poles and structures inspection principles encompassing: Standards, codes, legislation, supply authority regulations and or enterprise requirements Characteristics of wood used for structures within the electrical distribution system - relationship between timber and water, faults that occur that influence the integrity of the structure, affects of fungal activity, affects of termite and borer activity, affects of dry rot. Chemical treatment principles - types of chemical used to treat timber, regulations and procedures in handling and transporting chemicals safely, application procedures of chemicals to wood Deterioration prevention techniques - relationship between steel, concrete and wood, inspection procedures for deterioration, deterioration prevention procedures in steel, concrete and wood, procedures for the repair of deterioration in steel, concrete and wood T4 Powerline inspection principles encompassing: Standards, codes, legislation, supply authority regulations and or enterprise requirements Ground line inspection procedures of electrical distribution structures - requirements for pole inspection on electrical distribution structures, use of specific equipment and testing devices during testing/inspection, methods of recording data Overhead line inspection procedures of electrical distribution structures - methods and requirements for overhead line inspection on electrical distribution structures, clearances for overhead conductors, cables and structures, use of specific equipment and testing devices during testing/inspection, methods of recording data Underground cable inspection procedures in the electrical distribution system - state industry policy and regulations, methods and requirements for line inspection on underground cable terminations T5 Installation of switchgear and associated equipment encompassing: Types and function of various switchgear - isolators, air-break switches, gas-filled switches, vacuum type, links, fuses, oil disconnectors, fuse switches, circuit breakers, operating characteristics, advantages and disadvantages of different types switchgear, installation procedures, earthing, requirements and techniques Types of equipment - transformers, reactors, regulators, capacitors, relays, surge arrestors, fault indicators and mobile generators Installation procedures for switchgear and equipment - standards, codes, legislation, supply authority regulations and or enterprise requirements, assembly and erecting procedures, earthing requirements and techniques, pole mounted locations Maintenance procedures for switchgear and equipment - diagnosing and rectifying faults according to electricity supply industry standards and procedures, Testing and commissioning - electricity supply industry standards and procedures T6 Low voltage switching principles encompassing: Standards, codes, legislation, supply authority regulations and or enterprise requirements applicable to switching of low voltage to a given schedule Requirements for the use of manuals, system diagrams/plans and drawings - types, characteristics and capabilities of electrical apparatus, use, characteristics and capabilities of specialised tools and testing equipment, LV network interconnectors source of possible backfeed Low voltage switching techniques - identifying hazards, assessing and controlling risks associated with LV switching operations, electrical access permit(s), operational procedures, earthing procedures Personnel protective equipment (PPE) for LV switching |