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 KS TISA Remote community network field switching 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 T Legislation Standards codes legislation supply authority regulations and or enterprise requirements applicable to system switching T Requirements for the use of manuals system diagramsplans 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 T 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 permitsauthorities Requirements for team switching Procedures for coordination of operations T Techniques in LV system switching encompassing Isolation procedures and proving dead Preswitching checks Switching operational procedures Emergency fault procedures Energisation procedures T Role of the HV switching operator T 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 permitsauthorities Requirements for team switching Procedures for coordination of operations T Use and operation of equipment associated with HV overhead and substation equipment encompassing Test instruments Sticks Interrupters Arc stranglers T 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 T Types and categories of HV switchgear T Application function and operating capabilities of switchgear T Restrictions pertaining to HV switching equipment T Procedures for the isolation of HV transmission main and working earths T Earthing HV electrical apparatus practices and procedures for access encompassing Purposes of Operational and additional work part onsite earths Factors determining the location and effectiveness of Operational earthing Acceptable industry procedures Personal protective equipment T High voltage switching techniques Preswitching checks Switching operational procedures Isolation procedures and proving deaddeenergised Earthing procedures Preswitching checks Switching operational procedures Emergency fault procedures Energisation procedures T 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 T 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 |