National Instructional Media Institute creator DGT, MSDE, Govt of India text xxu Chennai National Instructional Media Institute 2013,c2008 monographic eng

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262 Contents : Practical -Familiarization with shop layout -use of fire extinguishers -First aid treatment of electric shock -Identify use and maintain electrician's hand tools machines -Skinning cable ends -Terminate cable ends -Crimping lugs with cable ends -Make simple twist Joints -Make married joints in stranded conductors -Make 'Tee' joint in stranded conductors -Prepare a Brittannia straight joint in solid copper conductors -Prepare western union joint -Prepare Brittannia Tee joint -Solder copper conductor joints -Solder a lug to a copper conductor joints -Solder a ferrule /sleeve to copper cable by pot and ladle method -Solder lug/ferrule /sleeve in an aluminium cable -Fixing and connections to Electrical accessories -Measurement to V.I and R in a D C Circuit -Identification of AC and DC Supply -Verify ohm's law -Measure D C power directly and Indirectly -Measure energy in D C power directly and indirectly -Measure energy in single phase circuit -Verify the characteristics the D C series circuit -Verify the characteristics of the DC parrallel circuit -Measure the resistance using wheat stone bridge and determination of sp resistance -Extend the range of MC Voltmeter by using multiplier -Extend the range of MC ammeter by using shunt -Making earth pipe /electrode -Prepare a pipe earth and measure the earth electrode resistance -Measurement of earth resistance -Preparation of electrolyte -Charge the Secondary Battery and test its charged condition -Determine the internal resistance of battery -Make a simple electromagnet and study field strength by varying ampere turns -Study connection and testing of electric bell and its connection with bell indicator -Study the construction and operation of magnetic overload relay -Check a Capacitor and determine its capacity -Determination of inductance by Inductance bridge -Determination of capacitance by capacitance bridge -Determination of Impedence -Verify the characteristics of an AC -Verify the characteristics of an AC Circuit having -Identify HT and LT terminals ans verify ratio of transformation of single phase transformer -Determine the losses (iron and copper loss )in a single phase transformer -Connect the given two single phase transformers in parrallel and measure voltage -Assemble and install a fluorescent lamp -Assemble , connect and install a twin fluorescent lamp with accessories -Connect mercury vapour lamp with accessories and install it -Assemble the given sodium vapour lamp with its accessories and install -Connect the given neon with the accessories and test it -Connect and test the contactors and alarm circuits Theory -Scope of the electrician Trade safety precautions -Safety practice -Electrical safety -Electrician's hand tools -Introduction to election Theory -Conductors and Insulators -Cable in Making joint on aluminium cables -Joint in Electrical Conductors -Soldering practice -Letters,Signs and symbols used in Electrical Technology Electrical wiring accessories -Types of current -Polarity test in DC -Ohm's law -Work power and energy -Heating effect of electric current -Series circuit -Parallel Circuit -Series -parallel circuit -Laws of resistance -Shunt and multiplier -Earthnf -Terms and methods -Internet resistance of lead acid cell -Magnetism -Electric bell and bell indicators -Electric magnetic over load relay -Capacitors -Types -Alternating current -Terms -AC circuit R & C in series -AC Circuit R L and C in series -AC Parallel circuit -Transformer -Losses in a transformer -Parallel operation of transformers -Illumination -Light and units of measurements filament lamp -Mercury vapour lamp -Sodium vapour lamp -Neon sign lamp -Fire alarm systems Electrical : Centres of Excellence Electrical 621.3 BAS COE8 National Instructional Media Institute BSDU 170629 20190501133550.0 English