ITI's which provides courses for Wireman

Sem. I

Sr. No.

Subjects of Study

Trade Practical

Trade Theory

1

Implementation in the shop floor of the various safety measures. Visit to the different sections of the Institute. Demonstration on elementary first aid. Artificial Respiration Practice on use of fire extinguishers.

Occupational Safety and Health Basic safety introduction, Personal protection. Basic injury prevention, Basic first aid, Hazard identification and avoidance, safety signs for Danger, Warning, caution and personal safety message. Use of Fire extinguishers. Visit and observation of sections. Various safety measures involved in the Industry. E

2

Demonstration of Trade hand tools. Identification of simple types- screws, nuts & bolts, chassis, clamps, rivets etc. Use, care and maintenance of various hand tools.

Identification of Trade-Hand tools Specifications

3

Practice in using cutting pliers, screw drivers, etc. skinning the cables and joint practice on single strand

Fundamental of electricity. Electron theory free electron, Fundamental terms, definitions, units and effects of electric current Explanation, Definition and properties of conductors, insulators and semi-conductors

4

Practice on soldering Measurement of Resistance. Determination of specific Resistance

Solders, flux and soldering technique. Types & properties of resistors Specific Resistance

5

Verification of Ohm’s Law, Verification of Kirchhoff’s Laws. Verification of series and parallel circuits. Verification of open circuit and closed circuit network. Measuring unknown resistance using different methods

Ohm’s Law - Simple electrical circuits and problems.
Resistors -Law of Resistance. Series and parallel circuits.
Kirchhoff’s Laws and applications. Wheatstone bridge principle and its applications

6

Demonstration and identification of types of cables. Demonstration and practice on using standard wire gauge & micrometre. Practice on crimping thimbles, Lugs.

Introduction of National Electrical Code Voltage grading of different types of Insulators, Temp. Rise permissible. Types of wires and cables standard wire gauge.

7

Grouping of Dry cells for a specified voltage and current. Practice on Battery Charging, Preparation of battery charging, Testing of cells, Installation of batteries, and Charging of batteries by different methods.

Chemical effect of electric current Principle of electrolysis. Faraday’s Law of electrolysis. Basic principles of Electroplating and Electro chemical equivalents.

8

Allied trades: Use of chisels and hacksaw on flats, sheet metal filing practice, filing true to line. Sawing and planning practice. Practice in using firmer chisel and preparing simple half lap joint.

Introduction of fitting trade. Safety precautions to be observed. Description of files, hammers, chisels hacksaw frames & blades, punch, etc- their specification and grades. Care and maintenance of steel rule, try square and files. Marking tools description and use.

9

Drilling practice in hand drilling and power drilling machines.

Types of drills description and drilling machines, proper use, care and maintenance.

10

Practice in using snips, marking and cutting of straight and curved pieces in sheet metals. Bending the edges of sheets metals.

Description of marking and cutting tools such as snubs shears punches and other tools like hammers, mallets, etc. used by sheet metal workers.

11

Identification and use of wiring accessories Practice on installation and overhauling common electrical accessories

Common Electrical wiring Accessories, their specifications in line with NEC -Explanation of switches, lamp holders, plugs and sockets.

12

Trace the magnetic field. Prepare Electromagnet. Use of magnetic compass.

Magnetism - classification of magnets, methods of magnetising, magnetic materials. Properties, care and maintenance, methods of magnetising magnetic materials.

13

Determine the characteristics of R, XL and XC in A.C. Circuits both in series and parallel. Experiment on poly phase circuits. Current, voltage, power and power factor measurement in single & poly- phase circuits.

Alternating Current -Comparison and Advantages D.C and A.C. Related terms frequency Instantaneous value, R.M.S. value Average value, Peak factor, form factor. Generation of sine wave, phase and phase difference.

14

Practice on Earthing-different methods of ear thing. Measurement of Earth resistance by earth tester. Connection & Testing of Earth Leakage by ELCB.

Earthing - Principle of different methods of ear thing. i.e. Pipe, Plate, etc Importance of Earthing. Improving of earth resistance Earth Leakage circuit breaker (ELCB).

15

Determine the resistance by Colour coding Identification of active/passive components. Diodes-symbol - Tests -Construct & Test Half wave rectifier circuit Full wave rectifier circuit Bridge rectifier circuit

Basic electronics- Semiconductor energy level, atomic structure ‘P’ type and ‘N’ type. Type of materials –P-N-junction. Classification of Diodes – Reverse and Forward Bias, Heat sink. Specification of Diode Explanation and importance of D.C. rectifier circuit. Half wave, Full wave and Bridge circuit. Filter circuits-passive filter.

project work

Sem. II

Trade Practical

Trade Theory

1

Electrical Measuring: Instruments measurement of voltage, current & resistance in different circuits. Direct & indirect measurement of electrical power & energy. Calibration of energy meters. Measurement of current and voltage using CT & PT, Measurement of 3 Phase energy using CT & PT. Phase sequence meter, measure current and voltage using Tong tester. Power measurement by Two & Three watt meter method Insulation resistance test by Megger.

Type of measuring instruments – MC & MI, Construction & working principles of Ammeter, Voltmeter, Ohm-meter ,Wattmeter, Energy meter, P.F. meter, frequency meter, multi meter, clamp meter, Megger & earth tester. Introduction of Digital meters. CT & PT. Tong tester/Clip on Meter.

2

Domestic wiring - methods, Installation & testing demonstration & Practice on connecting common electrical accessories in circuits and testing them in series board. Demonstration on Testing & replacement of different types of fuses.

Introduction and explanation of electrical wiring systems, cleat wiring, casing & Capping, CTS, Conduit and concealed etc., I. E. Rules. Related to wiring, National Building codes for house wiring, specification and types, rating & material.

3

Layout on wiring boards. Practice in P.V.C. insulated cable wiring on wood buttons with distribution board and number of points.

Branching of circuits with respect to loads such as lighting and power. CTS/PVC Conduit-surface and co

4

Practice of wiring: A) One lamp controlled by one SP switch, (B) Two lamps controlled by two independent switches, (C) One lamp controlled by two 2way switches (Staircase wiring), (D)One lamp controlled by intermediate switch from three different locations, (E)Hospital wiring, (F)Tunnel/Godown wiring, (G)Hostel wiring, (H)Bell Buzzer Indicator wiring (I) Domestic wiring practice

Description of different electrical fittings and accessories such as lamp holders, switches, plugs brackets, ceiling rose, cut out etc. IS 732-1963.Wiring materials used for P.V.C. cables I.E. rules, Indian standards regarding the above wiring such as-clip distance fixing of screws, cable bending etc.

5

Demonstration and practice of using Rowel tools, Demonstration and practice of casing and capping wiring.

Description of Rowel tools and Rowel plugs, their sizes, plugging, compound, plugs- wall jumper and their sizes and uses.

6

Demonstration and practice in cutting and threading conduit pipes. Cold and hot bending of pipes.

Conduit pipe wiring materials and accessories, types and sizes of conduit.

7

Preparation of conduit threads using different fittings and use of running threads wiring in conduit, using metal clad 3 pin plug, Earthing the conduit using earth clips and earth wire.

Layout of Light points, fan points etc. Layout of heating leads etc.- their controls, main switches, distribution boards as per I.E. rules. I. E. Rules for earthing conduits using earth clips and earth wire as per IS 732-1963

8

Illumination: Installation of - Neon Sign tube, Mercury vapour (H.P. & L.P.), Sodium vapour, Halogen Lamps, single tube, double tube, Metal halide lamps. Emergency light.

Introduction of Illumination- Terms & definitions, laws of illumination, illumination factors, intensity of light –importance of light, colour available.

9

Industrial Wiring: Tests on insulating materials. Measurement of insulation resistance, of commercial and industrial installation

Connections of different types of motors used in industry, their normal methods of wiring, Control, starting and protection devices-their connections, layouts and earthing Code practice for earthing of Industrial Wiring.

10

Commercial Wiring Inverter wiring./Control panel wiring /multi-storeyed building wiring. Introduction to LAN wiring

Wiring in commercial building- their special precautions as per I.E. rules. Introduction to LAN wiring.

11

Installation of 1 ph. and 3 ph. on line /off line UPS wiring. Testing of Industrial wiring and UPS wiring installation.

Power drives - Introduction, types, advantages & disadvantages. UPS- Introduction, types, Load calculation, Backup time calculation

12

Straight and cross crimping of RJ-45 cable. crimping of co-axial cable, proper installation of coaxial cable from dish antenna to Television set

Computer networking - Identification of network hardware/component. CAT-6 cable, RJ-45. DTH- Introduction of direct to home system, Music channel wiring/interconnecting couplers.

13

Industrial wiring installations for mixed load, both light and power. Layout of L.V. AC/DC machines and their panels.

General idea of fixing meter boards & taking service connection. Sealing of I.C. cut out & meters as per I.E. Rules, General Electric Appliances using heating effect – their capacities, voltage ranges, Calculation of current

14

Wiring of different circuit using Single core cable use for 2 ways, intermediate master switches etc. Testing of wiring installation.

Explanation of inter connection wiring circuits in the main building and auxiliary blocks, meter boards and its locations. Study of layout symbols in the preparation of layout diagrams

15

Computer awareness: Identification of Computer Parts, Switching ON/OFF of PC, Safety Precautions. Identifying and using Windows, like folders, files, Editing and saving. Windows Explorer, Notepad, Paint and calculator. Office package& internet: Using /Practicing WORD, EXCEL, POWER POINT for communication. Documentation. Internet Practicing – Browsing/ Creating Email, Downloading.

Block diagram of computer, main parts inside the system unit, ports & connectors, of PC parts & peripherals associated with PC like-keyboard, Mouse, Printers, Scanners, Camera, Modem, and External Storage Devices & UPS. Features of Operating System like M.S. Windows, Components of Windows- Calculator, Notepad, Paint, Windows Explorer. INTERNET: Websites, Browsing, Downloading Creating and Using E-mail ID’s Using it for Communications.

project work

Sem. III

Trade Practical

Trade Theory

1

Identify the terminals of LED, Diode, transistor, Zener diode, UJT, SCR, regulator ICs and test it.

LED , Diode, types of transistor, UJT, SCR, regulator ICs and Zener diode uses and its application

2

Construct and test variable DC power supply and trouble shoot the defects in a simple power supply

IC - voltage regulator pin configurations and applications.

3

Construction & testing of various electrical circuits with different accessories. Connection of Calling Bell, Buzzer, Electric Iron, Heater, Light & Fan etc.

Common Electrical Accessories, their specifications Explanation of switches, lamp holders, plugs and sockets etc. Development of domestic circuits using switches, fuse, MCB, sockets, lamp, fan, calling bell/buzzer, Two way switch, I.C.T.P, I.C.D.P, MCCB, ELCB, RCCB etc.

4

D.C. Generators, Identification of the parts of D.C. Generators. Testing and measuring the field and Armature resistances.

Introduction to D.C Generators and working principle, parts of D.C. Generator. Classification of Generators- Self excited and separately excited- their application in practical field.

5

Identification of different parts of generators testing fields & Apparatus. Insulation resistance measurements.

Types and characteristics of D.C. Generators – Series, Shunt and compound, their applications.

6

MOTORS & STARTER: Practice in connecting generators- Generators- Testing of D.C. Machines by Megger.

Introduction to D.C. Motor-Working principle, types of motors Explanation of terms used Torque, speed, Back E.M.F. etc.

7

Testing of D.C. Motors - connect run and change direction of rotation.  Study of DC starters- 2 point 3 point and 4 point speed control of D.C. Motors and speed measurement.

Necessity of starter- Types of starters, 2 point 3 point and 4 point starters, Protective devices used.

8

Tests on 3 phase circuit. – Current and voltage measurement in star and delta connections.

Introduction to A.C. Poly phase systems-advantages, 3 phase star delta. Terms used in 3Ø systems, connection and their relations w.r.t. current and voltage.

9

A.C. Generators, Motors & Starters Identification of Alternator of parts.

Parts and construction of Alternators, principle of working, types of Alternators, EMF equation. Various applications and power rating of alternators.

10

Demonstration and practice on A.C single phase motors starting and running for specific requirements.

Introduction to A.C single phase motors and types. Capacitors start/run- start and run. FHP motors and their uses.

11

Constructional details of three phase squirrel cage induction motor and slip ring induction motor. Determination of slip and efficiency.

Three phase Induction motor: Construction, Principle of operation of Three phase induction motor. Squirrel cage induction motor and slip ring induction motor.

12

Connect and run the A.C single phase and 3-Ph motors by using starters.

Starters - DOL starter, Star – delta starter and Auto transformer starter.

13

A.C. motor panel wiring (slip ring Induction type) Power Wiring For DC & AC Motors Practice power and control circuits on boards. Assembly & testing of the frame for a panel – suitable for motor generator set. I.S. 3072 Part-II of 1961. Erection of panel board, fixing of controlling and starting equipment, necessary meters.

Starters - DOL starter, Star – delta starter and Auto transformer starter Description of starter delta starter (manual, semi and Auto). Internal arrangement of a motor resistance starter for slip ring induction motor. Motor control circuit and starting devices. Power and control wiring circuits of AC motors.

project work

Sem. IV

Trade Practical

Trade Theory

1

Identification of types of transformers. To test / check the polarity of single phase transformer. Insulation Testing of single phase and Three Phase. Conducting No-load/O.C. & short circuit tests. Connection of transformers, efficiencies of transformers, parallel operation of transformer. Ratio test and voltage regulation.

Transformers – Power Transformer – Its construction, working, performance, parallel operation of transformer, their connections. Cooling of transformer, S.C. & O.C. tests. Regulation and efficiency, Specifications, problems on e.m.f. Equation, transformation ratio.

2

Familiarize and practice operation of OH line components. Visit to generating station (Thermal/ Hydro/Nuclear) Visit to a sub-station to familiarize OH line components. Prepare a line diagram of the institute/ ITI supply system.

Generation, Transmission And Distribution Of Electrical Power Generation of Electricity and their types. General idea about overhead transmission, distribution (LV,MV& HV) and their types of accessories used.

3

Demonstration, testing and use of line protecting devices as per I.E. Rules. Visit to Distribution - station

Types of Distribution, Explanation of line protecting devices and their general principle. Brief description of connection of places of use.

4

Familiarization and operation of various CBs ACB, VCB, SF6, OCB etc. visit to sub-station. Demonstration and Tests on Multi range switches, Rotary switches.

Substation Equipments Switchgear-CBs – ACB, VCB, SF6, OCB etc. protection schemes, CT/PT-Protective relays, lightning arrestors

5

Familiarize the parts of substations low and high voltages

Types of Substations - Indoor, Outdoor & Pole Mounting Substation construction

6

Demonstration and practice in terminating an U.G. cable to a bus bar chamber. Crimping lugs to the conductors of U.G. cable and connection to bus bar Loop connection for other circuit.

U.G. CABLE Construction of cable, Types , Application & methods of jointing UG cable & testing General idea of laying method and jointing precautions to be observed and different accessories used for medium voltage termination.

7

Synchronizing Building up the alternator output voltage, Synchronizing of bus bar voltage with generated voltage

Need of Synchronizing, various methods, precautions to be observed while Synchronizing.

8

Control panel wiring Preparation of control panel board and its layout Fixing of indicating meters /Instruments, Control devices, Protection devices

Control Panel elements, types and specifications. Layout and installation of panel board, Panel board wiring methods, colour coding of cables for its easy identification.

9

Preventive maintenance and routine tests. Fault location and remedy practice both in domestic and industrial wirings.

Importance and advantages of maintenance. Points to be observed to maintain the installation, preventive maintenance and routine tests.

10

Planning , Estimation and Costing of Wiring Planning and Preparation of layout for domestic, commercial, Multi storied building wiring and workshop electrical wiring

Concept and Principle of plan, estimation and cost. Preparation of complete house wiring layout, industrial wiring, commercial wiring for office Lodge, Hospital, Bank, Hotels etc

Project Work:
1. Over hauling and Testing of 3 phase Induction motor
2. Over hauling and testing of Ceiling/Table Fan
3. Preparation of series test board with indicating digital metres
4. Construction and test regulated power supply of 6-12 Volt DC
5. Construct and Test Decorative running LED lamp assembly
6. Installation of pump-set