8) This describes the essential skills and knowledge and their level, required for this unit. Evidence shall show that knowledge has been acquired of safe working practices and solving problems in extra-low voltage voice and data communications circuits. All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies. KS01-EF106A Electrotechnology communication principles Evidence shall show an understanding of electrotechnology communication principles, applying safe working practices and relevant Standards, Codes and Regulations to an extent indicated by the following aspects: T1. The basic electrical circuit basic circuit components function of basic circuit components connection of components measurement of circuit parameters open-circuit, closed-circuit and short-circuits. T2. Circuit parameter relationships Ohms Law calculation of voltage, current and resistance power dissipated calculation of power. T3. Measurement instruments (voltage, current & resistance) safe working procedures handling and storing instruments selecting and set up of instruments connecting instruments read analogue scales and digital readouts. T4. Effects of electrical current physiological effect heating effect magnetic effect chemical effect typical uses T5. EMF sources basic generator basic thermocouple photovoltaic cells piezo electric primary and secondary cells. T6. D.C. resistive circuits series circuits (set-up, measurement and calculations) parallel circuits (set-up, measurement and calculations) series-parallel circuits (set-up, measurement and calculations). T7. Capacitance construction of capacitors operation of capacitors units charge of a capacitor RC series circuit. T8. Magnetism and electromagnetic induction permanent magnets electromagnetism induced emf inductors principles of inductance unit of inductance electromagnetic radiation (EMR) cross talk. T9. A.C. principles generation of sinusoidal voltage a.c. circuit parameters – frequency, period, amplitude, instantaneous value, maximum value, peak value, peak to peak value and rms value calculation of frequency and rms values effects of frequency on inductors effects of frequency on capacitors transformers construction and operating principles. |