Evidence shall show that knowledge has been acquired of safe working practices and attaching cords and plugs to electrical equipment for connection to 1000 V a.c. or 1500 V d.c. supply. All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies. .KS01-EP025A Flexible cords/cables and plugs to 1000 V Evidence shall show an understanding of flexible cords/cables and plugs to 1000 V to an extent indicated by the following aspects T1 Safety encompassing: OH&S and electrical safety requirements requirements of AS/NZS 4836:2001 Safe working practices on low voltage installations T2 Selection of flexible cords/cables and plugs to suit given applications encompassing: multiphase systems structure of plug pin configuration applications of commonly used flexible cords/cables and plugs for connection to 1000 Va.c. or 1500 Vd.c. supply determining the current rating of a range of commonly used flexible cords/cables and plugs for connection to 1000 Va.c. or 1500 Vd.c. supply determining the number of cores /pins required for given situations multiphase colour code and the conventional code used in the most common cords/cables selecting flexible cords/cables for given multiphase loads to 1000 V and service duty. selecting multiphase plugs to 1000 V for a given load and IP rating. selecting the correct plug and socket combinations for a range of applications including use in damp areas T3 Connect flexible cords/cables and plugs to multiphase equipment encompassing: design features of plugs and sockets which protect the conductor terminations from undue force when disconnecting a cord - tortuous path cord preparation - not to mark/damage the inner core when stripping the sheath for termination, double the end of the conductor to be terminated preparation of the surfaces at an earthing connection before and after completion of the termination including terminations exposed to corrosion, and those for which no specific earthing terminal is provided prepare flexible cords/cables for connection single insulated metal framed equipment is earthed in accordance with requirements or the integrity of double insulated equipment is maintained fitting a range of various multiphase flexible cords/cables, plugs, and sockets with attention to tortuous path requirements, colour code, polarity, and correct termination of conductors with the sheath well into the body, and the cord grip anchored T4 Determine that a flexible cord/cable and plug is safe and is connected correctly encompassing: importance of conducting both visual and electrical tests to ensure leads are safe and appropriate for connection to supply in regard to physical condition, sufficiently high insulation resistance, continuity, arrangements for protection against indirect contact are undamaged and in place, appropriate IP rating, and arrangements for protection against dangers of mechanical movement as relevant are undamaged and in place check polarity of plug, and for any abnormal or obvious damage or fault minimum acceptable value of insulation resistance between actives, neutral and earth conduct insulation resistance and continuity tests prior to, and after, connecting cords/cables and plugs to appliances fault finding attached multiphase flexible cords/cables and plugs, and multiphase cord extension leads T5 Producing documentation and reports encompassing: nature and content of, and the need to produce, status reports and documents producing status reports and documents |