Evidence shall show that knowledge has been acquired of safe working practices and solving problems in single and three phase low voltage electrical apparatus and circuits. The knowledge and skills shall be contextualised to current industry standards, technologies and practices. KS01-EG033A Electrical apparatus and circuits Evidence shall show an understanding of electrical apparatus and circuits to an extent indicated by the following aspects: T1 Lighting circuits – looping at the light/switch encompassing: the “loop at the light” method of wiring lighting circuits. the “loop at the switch” method of wiring lighting circuits wiring diagrams for the lighting circuit of an installation that incorporates one-way, two-way and two-way and intermediate switching of light points using the loop at the light/switch methods of TPS wiring. TPS cabling requirement for the loop at the light/switch circuit. installation methods of accessories and wiring for a lighting circuit incorporating one-way, two-way and two-way and intermediate switching of lighting points using the loop at the light/switch method of TPS wiring. correct operation of the install circuits including testing for correct compliance with Australian Standards. T2 Circuits for socket outlets encompassing: the purpose of socket outlets. requirements concerning the polarity of switched socket outlets. correct cable size to supply 10 A, 15 A and 20 A socket outlets (single and three phase), for given installation conditions. number of socket outlets connected to a 16 A and 20 A circuit breaker. installation methods of a single phase socket outlet circuits. correct operation of the installed circuits including testing (dead testing only) for correct compliance with Australian Standards. T3 Final sub-circuits and segregation encompassing: purpose of mixed circuits. circuit loading for a mixed circuit. purpose of segregation of circuits and the AS/NZS3000 requirements. Installation methods a single phase mixed circuits. correct operation of the installed circuits including testing for correct compliance with Australian Standards. T4 Electrical heating control devices encompassing: methods of manual heat control. methods of automatic heat control. types and application for common thermostats. operation of common thermostats. sensitivity and differential of thermostats. testing of a thermostat (including differential and correct operation) applications of simmerstats (infinite controls). operation of a simmerstat. electronic heat control (phase control and zero voltage switching). T5 Fixed electrical heating appliances encompassing: Terms: heat energy, temperature, specific heat capacity, thermal conductivity and thermal stability. determining the heat energy in joules and kWh in a simple heating process. methods of heat transfer. Determining the heat energy input and output of a heating process. connections to a two phase stove. operation of reverse cycle air conditioning. T6 Electrical water heater operation encompassing: types of water heaters (instantaneous and storage) and their methods of control. intrinsic safety (pressure relief and thermal cut-out). testing of over temperature cut-out point of a thermostat. switchboard requirements to supply a controlled load water heater. internal circuit of a twin element water heater, and supply connections. tariffs employed by local supply authorities. solar heating system and its integration into an installation. T7 Alternative supplies encompassing: reasons for the installation of alternative supplies. types of alternative supply systems. characteristics and operation of UPSs. Australian Standards and local requirements for safety services supply systems. T8 Installation of batteries encompassing: common types of primary cells and secondary batteries and typical applications. terminal voltage of common primary cells and secondary cells. correct storage, handling and disposal techniques for cells and batteries. charge/discharge cycle for a secondary cell. effect of internal resistance on a secondary cell. state of charge of a secondary cell. installation of batteries as per AS/NZS3011 commissioning procedures for various secondary batteries. safe working procedures when working with secondary cells and batteries. T9 Fire protection – residential fire and smoke alarms encompassing: types of fire and smoke alarms. regulations and standards requirements regarding residential fire and smoke alarms. locations for residential fire and smoke alarms. wiring methods for residential fire and smoke alarms. operation of typical residential fire and smoke alarms T10 Emergency and evacuation lighting and lighting control encompassing: factors and requirements of emergency and evacuation lighting concerning illumination levels, luminaire positioning and operating period. characteristics of maintained, non maintained and sustained emergency lighting systems. arrangement of batteries in point and central bank emergency lighting supply systems. lighting control methods T11 Lighting concepts and incandescent lighting encompassing: basic concepts of lighting. terminology, principles and standards relevant to lighting (energy efficiency as per BCA new lamp types and permitted replacements and their efficacy).. basic types of luminaries. operation of an incandescent lamp. types of incandescent lamps. expected lamp life, colour rendering and efficacy for typical incandescent lamps. lighting layout in terms of visual comfort and relevant Australian standards T12 Fluorescent low intensity discharge lighting encompassing: types of low intensity discharge lamps. expected lamp life, colour rendering and efficacy for typical types of low intensity discharge lamps. operation of low intensity discharge luminaires including their control equipment. Australian Standard and local requirements for low intensity discharge lighting. methods for satisfying Australian Standards and local supply authority requirements regarding low intensity discharge lighting. T13 High intensity discharge lighting encompassing: types of high intensity discharge lamps. expected lamp life, colour rendering and efficacy for typical types of high intensity discharge lamps. operation of high intensity discharge luminaires including their control equipment. Australian Standard and local requirements for high intensity discharge lighting. methods for satisfying Australian Standards and local supply authority requirements regarding high intensity discharge lighting. LED lighting and its applications. Neon, Argon and Xenon lighting and their applications. comparison of incandescent, low intensity discharge, high intensity discharge, LED and other types of lighting |