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 installing and maintaining substation DC systems. All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies. KS01-TSB23A Substation direct current systems Evidence shall show an understanding of substation direct current systems to an extent indicated by the following aspects T1 Safe working on energised low voltage equipment 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. T2 Enterprise specific — policy and procedure instructions encompassing: Responsibilities and duty of care of employer and employee relationship Methods of obtaining the up-to-date information on enterprise policy and procedures Rules and regulations Induction into workplace - location of work area and storage area, timetable, uniform, personal well-being, housekeeping rules, emergency procedures, evacuation procedures Techniques when deal with others - working in teams, customer relation, complaint and issues procedures. Overview of enterprise professional development - fire fighting procedures, fatigue management, training and competency development - understanding and promotion T3 Enterprises specific — OHS instructions encompassing: Standards, codes, legislation, supply authority regulations and specific enterprise regulations pertaining to the OHS policies and procedures Methods of obtaining the up-to-date information on enterprise OHS policy and procedures Specific enterprise personal protection equipment - type and application, where and when to be used, method of replacement, responsibility of maintenance including cleaning inspection and testing, emergency response, rescue, evacuation and First Aid procedures Personal well-being – hygiene, fatigue/stress management, drugs/alcohol OHS training - induction training, specific hazard training, specific task or equipment training, emergency and evacuation training, training as part of broader programs such as equipment operation OHS records including audits, inspection reports, workplace health and environmental monitoring records, training and instruction records, manufacturers and suppliers information such as MSDSs, registers, maintenance reports, workers compensation and rehabilitation records and First Aid/medical records T4 Enterprises specific — technical drawing and documents encompassing: Types and application of enterprise specific drawings and documents - electrical and electronic drawings, mechanical drawings, project charts, schedules, graphs, technical manuals and catalogues Instruction/worksheets sheets - types and application of enterprise specific symbols and diagrams Title box - description of parts and version control. T5 Enterprise specific switching diagrams and drawing encompassing: Types and application of enterprise specific switching drawings and documents - wiring and schematic diagrams and switching symbols, mechanical drawings dealing with switching operations, project charts, switching schedules, graphs, technical manuals and catalogues, instruction/work sheets. Interpretation of different system switching diagrams - LV system switching diagrams, DC traction supply sectioning diagrams, HV transmission and distribution system symbols and feeder plans, processes of updating switching diagrams T6 Enterprises specific specialised tools encompassing: Legislation, Standards, codes, legislation, supply authority regulations and specific enterprise regulations pertaining to the use and care of specialised tools ( voltage detectors; polarity testers, phase rotation) Characteristics, capabilities and application of specialised tools for a particular job Safety policies, procedures and precautions with regards to using, transporting and storage of specialised tools Selection methods for obtaining the correct specialised tool for the particular job including during procurement, purchasing and or hiring arrangements Techniques in pre-use inspection on the serviceability of specialised tools Techniques in the selection, use, maintenance, and care and storage of specialised tools Identifying OHS hazards, assessing and controlling risks associated with their use Techniques for the safe use of specialised power tools. T7 Enterprise Specific Equipment Installation Procedures encompassing: Standards, codes, legislation, supply authority regulations and or enterprise requirements applicable to equipment installation Requirements for the use of manuals, substation diagrams/plans and drawings Types, characteristics and capabilities of HV substation equipment to be installed Identification of components within the equipment to be Installed and associated control housings Use, characteristics and capabilities of specialised tools and equipment Enterprise Specific Policies and Procedures for equipment to be installed Control equipment and auxiliary relays, flags and alarms Techniques in evaluating serviceability of equipment to be Installed Safety precautions when testing and measuring equipment to be Installed - safe working practices and procedures, identification of hazards, assessment and control of OHS risks, types, selection, maintenance and use of personal protective equipment, responsibilities and protocols, safe working clearances Remote and local operating principles and conventions T8 Enterprise Specific Data Management Processes encompassing: Standards, codes, legislation, supply authority regulations and or enterprise requirements applicable to Data Management Requirements for the use of manuals, substation diagrams/plans and drawings Types of enterprise specific computer software Techniques in storing and retrieving data and reports from the computer Techniques in using the Data Management systems in following necessary commands and protocols in accordance with the Enterprise Specific Procedures Calculation of results and data measurements using the computer Techniques in the preparation of preliminary works creation and closure. T9 Fault conditions and symptoms related to the plant and/or equipment type encompassing: Standards, codes, Commonwealth, State/Territory/local government legislation, supply authority regulations and or enterprise requirements pertaining to typical fault conditions and systems Interpretation of faults in operating mechanisms which may include drive trains and mechanical power drives, stored energy systems including hydraulic systems, pneumatic systems and mechanical storage systems, accumulators Interpretation of faults in electrical control systems which may include electro-mechanical relay systems, micro-processor based systems, PLC systems, integrated control systems or combinations of electrical/mechanical systems Types of electrical systems including AC, DC and combinations of both Types of fault conditions - failure to operate, failure in service and include the appropriate procedures for work on in service plant/equipment Types of symptoms - alarms, relay flags, mechanical defects, insulation deterioration, leaks, over-pressure, under pressure, out of tolerance measurements and checks. T10 Substation equipment components and materials related to the plant and/or equipment type encompassing: Types of components - complete unit of plant and/or equipment, replacement components or appropriate substitutes, their dimensions, suitability and serviceability; also the components associated with the local control systems of the equipment including indication of levels, quantities, volumes, pressures and temperatures and the operating principles of these devices and components Types of materials - insulation, construction, fabrication or lubrication of the plant/equipment Techniques in enterprise procedures and regulatory/legislative requirements for the handling/use and storage of equipment components and materials which may present an OHS hazard to persons in the workplace T11 Substation safety practices encompassing: Standards, codes, Commonwealth, State/Territory/local government legislation, supply authority regulations and or enterprise requirements pertaining to substation safety practices Techniques in the use of protective apparatus and apparel for substations work, including responsibilities with regard to the use and maintenance of protective apparatus and apparel and the types of protective apparatus and apparel used for work in substations Requirements for the use of ladders and appropriate ladder types for work in substations - safe work methods when carrying, erecting, collapsing and lowering different types of extension ladder against substation structures, plant and equipment, maintenance checks on different types of ladders, renewal of extension ropes and the safety issues relating to clearances from energised conductors Requirements for climbing and working at heights in substations - attached climbing principles, selection, use and operation of elevated work platforms and any OHS requirements associated with the use of EWPs Control of small fires - identification, selection and operation of the appropriate extinguishing mediums for various types of fires and the precautions for personal protection when fighting small fires Control of oil spills - identification, use and maintenance of spill oil control equipment and materials, oil containment facilities and systems Rescue and release procedures - the rescue personnel from energised conductors, emergency descent from an EWP and may include rescue from confined spaces. Enterprise requirements - safe access and Authorisation to Work procedures, use of mobile extendable equipment on or near energised HV conductors, emergency response procedures. Hazards associated with work in substations including earthing systems, transfer potentials, step and touch effects, electrostatic and electromagnetic induction, dangers of near approach to energised conductors. T12 Design principles of Substation LV AC and DC supply systems encompassing: Standards, codes, Commonwealth, State/Territory/local government legislation, supply authority regulations and or enterprise requirements Wiring conventions, systems and labelling conventions Substation equipment identification and layout, wiring and schematic diagrams and other appropriate diagrammatic representations LV design specifications, supply requirements, electrical load assessments Substation LV system distribution requirements - substation batteries, isolation requirements, paralleling requirements, battery chargers, DC distribution panels and control systems, AC distribution panels and control systems, auto change-over requirements, Control equipment and auxiliary relays, flags and alarms, Common panel layouts. |