UNIT-I
Electrical Safety Measures and Identification of Common Electrical Materials/Tools
1.1 Study safety measures while working or handing the electrical equipments.
1.2 Use of fire extinguisher during electric fire.
1.3 Study the methods to take restoration of person suffering from electric shock.
1.4 Identification of common electrical materials with standard ratings and specifications such as wires, cables, switches, 1-pole, 2-pole and 3-pole MCB, RCCB & ELCB, fuses, cleats, clamps and allied items, tools and accessories.
1.5 Identification ,use and connections of various types of switches such as: normal/miniature toggle, slide, push button piano key, rotary, SPST, SPDT, DPST,
DPDT, band selector, multi-way Master Mains Switch.
1.6 Identification of phase, Neutral and Earth wires for connection to domestic electrical appliances and their connections to three pin plugs.
1.7 Identification and familiarization of following electrical wiring tools with respect to their usage: Screw drivers (different sizes), Insulated Pliers, Cutter, Sniper, Screw Driver (Star Screw Driver), L- Keys, Soldering Iron, soldering wire, flux, Drilling machines and Drilling Bits, Voltage/line tester, Insulation remover, Standard Wire Gauge.
UNIT-II
House Wiring
2.1 Soldering wire jointing of different types such as straight joint/ married joint, T joint, Western union joint, pigtail joint.
2.2 Making of extension board containing two 5A and one 15A plug points.
2.3 To make a single phase main distribution board with five outgoing circuits for light and fan load including main switch and fuse (only internal connection).
2.4 Fault detection and repair of domestic electric installation.
2.5 Fault detection and its repair in institution’s workshop installations.
2.6 Carrying out house wiring circuits using fuse, switches, sockets, ceiling rose etc. in batten or P.V.C. casing-caping. Demo of conduit wiring through junctions.
UNIT-III
Domestic Appliances
3.1 Winding/re-winding of a fan (ceiling and table)/ motor and BLDC
3.2 Repair and maintenance of domestic electric appliances, i.e. electric iron, geyser, fan, heat convector, desert cooler, room heater, electric kettle, electric oven, electric furnace etc.
3.3 Dismantling and assembly of voltage stabilizers
3.4 Assembly and interchange wiring of fluorescent tube light, CFL lamp etc.
3.5 Earth resistance measurement and earthing processes.
3.6 To carry out pipe/plate earthing for a small house and 3-phase induction motor. Testing the earthing using earth tester.
UNIT-IV
Professional Equipments and Control
4.1 Coil winding for small transformer or alarm bell.
4.2 Assembling small transformer cores from the given lamination plates.
4.3 Assembling small battery charger.
4.4 Connections of single phase and 3-phase motors, through an appropriate starter and to change their direction of rotation.
4.5 Wiring, testing and fault finding of the following contactor control circuits operating on 3-phase supply:
a) Remote control circuits
b) Time delay circuits
c) Inter locking circuits
d) Sequential operation control circuits
4.6 Dismantling/assembly of star-delta and DOL starter.
4.7 Design a printed circuit Board (PCB) for voltage regulator using zener diode.
4.8 Armature winding of 3 phase induction motor.
UNIT-V
Power Supply Connection
5.1 Connecting single phase energy meter with supply and load. Reading and working out power consumption and cost of energy.
5.2 Introduction to single phase and three phase supply and wiring system. Importance of three phase supply (RYB) & its sequence and wiring system.
5.3 Connecting Generator and 3 phase wiring through Change over Switch.
5.4 Power cable jointing using epoxy based jointing kits.
5.5 Demonstration of laying of underground cables at worksite.
Rs.200
15.00% off