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 of installing overhead traction wiring systems has been acquired All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies KSTRTA Electrical Rail Traction Wiring Systems Installation KS01-TRT34A Electrical Rail Traction Wiring Systems Installation Evidence shall show an understanding of electrical rail traction wiring systems installation to an extent indicated by the following aspects T Standards codes legislation supply authority regulations and or enterprise requirements applicable to the electrical traction T Electrical traction voltage and current circuit paths encompassing Transmission distribution voltages Traction supply system and voltages Return and stay current paths including electrolysis T Relationship of sectioning section insulator and overlapsair gaps in a traction power system T Traction power system components encompassing Function of transformerrectifiers Configuration and purpose of traction overhead wiring systems Function of isolatorsswitches Function of the circuit breaker T Reliability and security of traction supply T Traction power system electrical protection encompassing Load protection Surge protection Fault protection Electrolytic protection T Impact of electromagnetic forces encompassing Telephone interference Effects of televisionradio interference T Insulation methods in a traction power system encompassing Types of electrical insulation Insulation coordination Reason for electrical clearances T Bonding systems structure bonds traction bondsbonding cables and impedance bonds T Ancillary conductors feeder wires current return path and other ancillary conductors T Relationship of current and potential drapersjumpers to the traction power system T Electrical wiring system components earth wires feeder wire return conductor insulators catenary wire contacttrolley wire droppers tensioning equipment current collectors tram support networks tram fittings bridgetunnel fittings T Electrical traction circuits encompassing Types Applications T Relationship of the components apparatus and the conductors to the operation of the traction system T Effective current collection and wire interface T Effective registration in the traction power system T Profiling overhead traction wire methods Factors that impact on current collectors Methods to achieving smooth current collector transitions and interfaces T Dynamic and static forces encompassing Types that effect traction systems Effects on effective registration Techniques to minimise the adverse effects |