Lapidary

Lapidary

ELECTRICIAN

DAYUNIT/ CHAPTERTOPICE-NOTES LINKVIDEO LINK
1Safety & HealthImportance of Safety and general Precautions
to be observed in the shop
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2INTRODUCTION TO THE TRADEScope of the electrician
trade.
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3SAFETTY RULESSafety rules and safety signs.VIEWWATCH NOW
4FIRE EXTINGUISHERSTypes and working of fire
extinguishers.
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5Safety & HealthFirst aid safety practice.VIEWWATCH NOW
6HazardsHazard identification and
prevention.
VIEW
7Safety & HealthPersonal safety and factory
safety.
VIEW
8Workshop MaintananceResponse to emergencies
e.g. power failure, system
failure and fire etc.
VIEW
9Awareness of Electrical maintananceConcept of Standards and
advantages of BIS/ISI.
VIEW
10DIFFERENT TYPES OF ELEC. TOOLSTrade tools specifications.VIEW
11ELECTRICAL CODE- 2011Introduction to National Electrical Code-2011.VIEW
12Tools’ SafetyAllied trades: Introduction to fitting tools safety
precautions.
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13Elec.Tools specificationsDescription of files, hammers, chisels hacksaw frames, blades, their specification and grades.VIEWWATCH NOW
14Introduction about Marking ToolsMarking tools description and use.WATCH NOW
15Elec. DrillsTypes of drills, description & drilling machines.VIEW
16Wooden JointsVarious wooden joints.
17Marking ToolsMarking tools; calipers Dividers, Surface plates,
Angle plates, Scribers, punches, surface gauges
Types, Uses, Care and maintenance.
VIEW
18Sheet Metal ToolsSheet metal tools: Description of marking &
cutting tools.Types of rivets and riveted joints. Use of thread gauge. Description of carpenter’s
tools Care and maintenance of tools.
VIEW
19Fundamental Of ElectricityFundamentals of electricity,
definitions, units & effects of
electric current.
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20MaterialsConductors and insulators.VIEWWATCH NOW
21Conducting MaterialsConducting materials and their comparison.VIEWWATCH NOW
22Material JointsJoints in electrical conductors.VIEW
23Soldering TechniquesTechniques of soldering. Types of solders and flux.VIEW
24Transmission Line’s ComponentsUnderground cables:Description, types, various
joints and testing procedure.
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25Transmission Line’s ComponentsCable insulation & voltage grades Precautions in using various types of cables.VIEW
26D.C. CircuitOhm’s Law; Simple electrical circuits and problems.VIEWWATCH NOW
27D.C. CircuitKirchoff’s Laws and applications.VIEW
28D.C. CircuitSeries and parallel circuits.WATCH NOW
29D.C. CircuitOpen and short circuits in series and parallel networks.
30D.C. CircuitLaws of Resistance and various types of resistors.VIEW
31D.C. CircuitWheatstone bridge; principle and its applications.
32D.C. CircuitEffect of variation of temperature on resistance.
33D.C. CircuitDifferent methods of measuring the values of resistance.
34D.C. CircuitSeries and parallel combinations of resistors.
35ElectromagnetismMagnetic terms, magnetic materials and properties of
magnet.
36ElectromagnetismPrinciples and laws of electro-magnetism.
37ElectromagnetismSelf and mutually induced EMFs.
38ElectrostaticsElectrostatics: Capacitor- Different types, functions,grouping and uses.
39A.C. Circuit & Power TriangleInductive and capacitive reactance, their effect on AC circuit and related vector concepts.
40A.C. Circuit & D.C. circuitComparison and Advantages of DC and AC systems.
41A.C. CircuitRelated terms frequency, Instantaneous value, R.M.S. value Average value, Peakfactor, form factor, power factor and Impedance etc.
42A.C. CircuitSine wave, phase and phase difference.
43A.C. CircuitActive and Reactive power.
44A.C. CircuitSingle Phase and three-phase system.
45A.C. CircuitProblems on A.C. circuits.
46A.C. CircuitAdvantages of AC poly-phase system.
47A.C. CircuitConcept of three-phase Star and Delta connection.
48A.C. CircuitLine and phase voltage, current and power in a 3
phase circuits with balanced and unbalanced load.
49A.C. CircuitPhase sequence meter.
50Laws of Electrolysis & Chemical effectsChemical effect of electric current and Laws of
electrolysis.
51Laws of Electrolysis & Chemical effectsExplanation of Anodes and cathodes.
52Principle of Cells, types & ApplicationsTypes of cells, advantages /disadvantages and their
applications.
53Principle of Cells, types & ApplicationsLead acid cell; Principle of operation and components.
54Principle of Cells, types & ApplicationsTypes of battery charging, Safety precautions, test
equipment and maintenance.
55Principle of Cells, types & ApplicationsBasic principles of Electroplating and cathodic
protection Grouping of cells for specified voltage and
current.
56Principle of Solar Cell & its ApplicationsPrinciple and operation of solar cell.
57Estimate, Assemble,
install and test wiring system.
I.E. rules on electrical wiring.Types of domestic and industrial wirings.
58Estimate, Assemble,
install and test wiring system.
Study of wiring accessories e.g. switches, fuses, relays,
MCB, ELCB, MCCB etc.
59Estimate, Assemble,
install and test wiring system.
Grading of cables and current ratings.
60Estimate, Assemble,
install and test wiring system.
Principle of laying out of domestic wiring.
61Estimate, Assemble,
install and test wiring system.
Voltage drop concept.
62Estimate, Assemble,
install and test wiring system.
PVC conduit and Casing capping wiring system.
63Estimate, Assemble,
install and test wiring system.
Wiring circuits planning,
permissible load in subcircuit and main circuit.
64Estimate, Assemble,
install and test wiring system.
Estimation of load, cable size, bill of material and cost.
65Estimate, Assemble,
install and test wiring system.
Inspection and testing of
wiring installations.
66Estimate, Assemble,
install and test wiring system.
Special wiring circuit e.g. godown, tunnel and
workshop etc.
67Plan and prepare
Earthing installation.
Importance of Earthing.
68Plan and prepare
Earthing installation.
Plate earthing and pipe earthing methods and IEE
regulations.
69Plan and prepare
Earthing installation.
Earth resistance and earth leakage circuit breaker.
70Plan and execute
electrical illumination system and test.
Laws of Illuminations.
71Plan and execute
electrical illumination system and test.
Types of illumination system.
72Plan and execute
electrical illumination system and test.
Illumination factors, intensity of light.
73Plan and execute
electrical illumination system and test.
Type of lamps, advantages/ disadvantages and their
applications.
74Plan and execute
electrical illumination system and test.
Calculations of lumens and efficiency.
75Select and perform measurements
using analog /digital instruments
Classification of electrical instruments and essential
forces required in indicating instruments.
76Select and perform measurements
using analog /digital instruments
PMMC and Moving iron instruments.
77Select and perform
measurements
using analog /digital instruments
Measurement of various electrical parameters using
different analog and digital instruments.
78Select and perform measurements
using analog /digital instruments
Measurement of energy in three phase circuit.
79Perform testing, verify errors and
calibrateinstruments.
Errors and corrections in
measurement.
80Perform testing, verify errors and
calibrate instruments.
Loading effect of voltmeter and voltage drop effect of
ammeter in circuits.
81Perform testing, verify errors and
calibrate instruments.
Extension of range and calibration of measuring
instruments.
82Plan and carry out installation, fault detection and repairing of domestic
appliances.
Working principles and circuits of common domestic
equipment and appliances.
83Plan and carry out installation, fault detection and repairing of domestic
appliances.
Concept of Neutral and Earth.
84Execute testing, evaluate
performance and maintenance of transformer.
Working principle, construction and classification of transformer.
85Execute testing, evaluate
performance and maintenance of transformer.
Single phase and three phase transformers.
86Execute testing, evaluate
performance and maintenance of transformer.
Turn ratio and e.m.f. equation.
87Execute testing, evaluate
performance and maintenance of transformer.
Series and parallel operation of transformer.
88Execute testing, evaluate
performance and maintenance of transformer.
Voltage Regulation and efficiency.
89Execute testing, evaluate
performance and maintenance of transformer.
Auto Transformer and instrument transformers (CT & PT).
90Execute testing, evaluate
performance and maintenance of transformer.
Method of connecting three single phase transformers for
three phase operation.
91Execute testing, evaluate
performance and maintenance of transformer.
Types of Cooling, protective devices, bushings and
termination etc.
92Execute testing, evaluate
performance and maintenance of transformer.
Testing of transformer oil.
93Execute testing, evaluate
performance and maintenance of transformer.
Materials used for winding and winding wires in small
transformer.
94Project work / Industrial visit:a) Battery charger/Emergency light
b) Control of motor pump with tank level
c) DC voltage converter using SCRs
d) Logic control circuits using relays
e) Alarm/indicator circuits using sensors