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 performing high voltage field switching to a given schedule. All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies. KS01 –TIS35A Remote community network field switching Evidence shall show an understanding of the remote community network field switching to an extent indicated by the following aspects: T1 Legislation, Standards, codes, legislation, supply authority regulations and or enterprise requirements applicable to system switching T2 Requirements for the use of manuals, system diagrams/plans and drawings encompassing: Types, characteristics and capabilities of electrical apparatus Use, characteristics and capabilities of specialised tools and testing equipment LV network interconnectors for alternate sources of supply and possible backfeed. HV network interconnectors source of possible backfeed T3 Procedures for obtaining correct LV switching authorisation encompassing: Identification of hazards, assessing and controlling risks Safety procedures and precautions Safe approach distances Responsibilities and protocols Identifying switching resources Procedures for obtaining electrical access permits/authorities Requirements for team switching Procedures for coordination of operations T4 Techniques in LV system switching encompassing: Isolation procedures and proving dead Pre-switching checks Switching operational procedures Emergency fault procedures Energisation procedures T5 Role of the HV switching operator T6 Procedures for obtaining correct HV switching authorisation encompassing: Identification of OHS hazards, assessing and controlling risks Safety procedures and precautions Safe approach distances Responsibilities and protocols Identifying switching resources Procedures for obtaining electrical access permits/authorities Requirements for team switching Procedures for coordination of operations T7 Use and operation of equipment associated with HV overhead and substation equipment encompassing: Test instruments Sticks Interrupters Arc stranglers T8 Operation of protection systems and substation equipment Note: Examples include fault levels and settings; types and applications; protection systems and substation equipment fault levels and settings; types and applications T9 Types and categories of HV switchgear T10 Application, function and operating capabilities of switchgear T11 Restrictions pertaining to HV switching equipment T12 Procedures for the isolation of HV transmission main and working earths T13 Earthing HV electrical apparatus practices and procedures for access encompassing: Purposes of Operational and additional work part - on-site earths Factors determining the location and effectiveness of Operational earthing Acceptable industry procedures Personal protective equipment T14 High voltage switching techniques Pre-switching checks Switching operational procedures Isolation procedures and proving dead/de-energised Earthing procedures Pre-switching checks Switching operational procedures Emergency fault procedures Energisation procedures T15 Application and function of SWER system components Circuit arrangement Principle of operation Hazards and procedures associated with faulty SWER earth systems Procedure to isolate, energise and commission SWER substations T16 Operation of HV overhead switching or indicating devices encompassing: Identifying hazards, assessing and controlling risks associated with HV switchgear operation Systematic and defensive techniques Mobile radio procedures Double isolation procedures fuses; disconnect fuses; load switching; live line indicators; capacitors; reclosers; sectionalisers, underslung links, airbreaks; switches, disconnects; live line clamps; phasing sticks; phasing tester. |