1. Industrial Training Institute - Vyara
C.O.E. MODULE-ECBT: 4. “BASIC Electrical Wiring & Winding ”
DURATION: 8 Week

2. Course Content Fonda mental of electricity
Electrical word, definition and unit
Wiring System
Requirement of electrical installation
Types of wiring System.
TW Batten wiring
PVC Casing Capping Wiring
Conduit Pipe Wiring.
IE Rules of Wiring.

3. Multy Storage wiring.
Wiring Installation Diagram and Symbol.
Fault of Wiring.
Magger.
DC Motor and its Speed Control.
Motor use in industries.
Starter.
Winding.
Telephone Wiring.
Transformer Winding.

4. Fundamental concept of electrical energy
Introduction.
Importance of electricity.
Use of electricity
1. In industries : Heating, welding, electroplating.
2. Domestic : Light, fan, heater, washing machine.
3. Commercial : Cinema, Lift, water pump, lighting, adverting display.

5. Direct Current.
Alternating current.
Source of electricity.
1. Battery.
2. Dc generator.
3. Alternator.

6. Electrical word, Definition & Unit
Electromotive force. (emf)
Current
Resistance
One Ampere
One volt
Electric power
One watt ( W )
One Ohms
Electric energy
One kilo watt hour
Specific resistance

7. Wiring introduction & system
Introduction of wiring.
Types of wiring as using.
1. Domestic Wiring.
2. Commercial Wiring.
3. Industrial wiring.
Wiring System
1. Tree System.
2. Looping System.
(a) Switch and two plate ceiling rose or switch and batten holder lopping.
(b) Three plate ceiling rose looping.
(c) In junction box looping

8. Indian electricity rules pertaining to Domesting wiring
Electrical Supply line and equipment ’s construction, Installation, protection, operation and safety.
Consumer ‘s service line and equipment.
Cut out in consumer’s area.
Introduction of earth conductor and earth neutral position of switch and cut out.
Earth terminal in consumer’s area.
Handling of electrical supply line and equipment.
Supply of energy and uses.
Seal of meter and cut out.

9. Introduction of wiring.
Types of wiring according to the Uses.
Domestic Wiring.
Commercial Wiring.
Industrial Wiring.

11. Safety Duration Appearance Accessibility Maintenance Cost
Factors Affecting choice of wiring
Safety
Duration
Appearance
Accessibility
Maintenance
Cost

12. Types of Wiring
Cleat Wiring
Batten Wiring
(a) PVC Batten wiring.
(b) TRS/CTS Wiring.
© Lead Shedh Wiring.
Casing Capping wiring
(a) Wood Casing capping Wiring
(b) PVC Casing Capping Wiring.

13. Conduit Wiring
(a) Surface conduit wiring
Metal Conduit Wiring
PVC conduit wiring
(b) Consiled Conduit Wiring
Metal Conduit Wiring.
PVC Conduit wiring.

14. CLEAT WIRING Introduction
The types of wiring to be adopted is dependent on various factors, viz, durability, safety, appearance, cost, consumer’s budget etc.
Cleat wiring
This System uses insulated Cables sub protected in porcelain cleats.

15. Cleat wiring is recommended only for temporary installations
Cleat wiring is recommended only for temporary installations. The cleats are made in pairs having bottom and top halves. The bottom half is grooved to receive the wire and the top half is for cable grip. Initially the bottom and top cleats are fixed on the wall loosely according to the layout. Then the cable is drawn, tensioned and the cleats are tightened by the screw. Cleats are of three types, having one, two or three grooves, so as to receive one, two or three wires. Two types of cleats.

16. Cleat wiring is one of the cheapest wiring considering the initial cost and labor, and is most suitable for temporary wiring. This wiring can be quickly installed, easily inspected and altered. When not required, this wiring could be dismantled without damage to the cables, cleats and accessories

18. B.I.S. RECOMMENDATIONS FOR CLEAT WIRING
General
This system shall not be employed for wiring on damp walls or ceilings unless precautions are adopted for effectively preventing dampness and thus the deterioration of the insulation of the conductors.
Accessibility
Cleat wiring shall be run, as far as practicable, so as to be visible. In positions where they would be liable to mechanical injury and where they are less than 1.5 m above the floor, they shall be adequately protected.

19. Class of cables
Vulcanized rubber insulted cables, PVC and polythene insulted cables, braided or unbraided insulted cables could be used without any further protection.
Cleats
All cleats shall consist of two parts, a base piece and a cap. Cleats shall be fixed at distances not more than 60 cm apart and at regular intervals.

20. Where cleat wiring is laid along an iron joist, porcelain cleats shall be inserted either with varnished wood fillets or varnished wood clamps securely fixed so as to prevent the conductors from coming in contact with the metal along witch they are passing.
Fixing of cleats
In ordinary cases, cleats shall be attached to wooden plugs fixed to the walls

21. Distance apart of wires
For pressure up to 250 volts, cleats shall be of such dimensions that in the case of branch loads, conductors shall not be less than 2.5 cm apart, centre to centre, and in the case of sub-mains not less than 4 cm apart, centre to centre. Care shall be taken in selecting the size of cleats particularly for branch distribution wiring where two-way and three-way porcelain cleats are essential and the difference in size shall be reasonable. Care should

22. also be taken ensure that grooves f porcelain cleats are essential and the difference in size shall be reasonable. Care should also be taken ensure that grooves of porcelain cleats do not compress the insulation nor be too wide for a loose fit. Under no circumstances two wires shall be placed in one groove of the porcelain cleats.

23. Crossing of conductors
Where cleated conductors cross each other they shall be separated by an insulating bridging piece, which will rigidly maintain a distance of atleast1.3 cm between the conductors. Where joints are required for connecting bifurcating wires, junction boxes with porcelain connectors inside shall be used.
Protection near the floor
No cleat wiring shall be left unprotected up to 1.5 m above the floor level. When brought through the floor it shall be enclosed in a conduit. (IS )

24. BATTEN WIRING Batten Wiring
Tough rubber-Sheathed (T.R.S.) or PVC- Sheathed cables are suitable to run on teak wood battens.
Varnishing of teak wood batten
Method of securing the battens
Suitability of tough rubber-sheathed cable
Suitability of PVC sheathed cable
Painting
Bending in wiring
Passing through the walls
Buried cable

25. Link Clips
Link clips are used for family clipping the cables in position.
Link clips are of two types.
Link clip which has separate linking eye.
Joint link clip which has combined linking eye.
Link clip are available in the following size.

26. 25mm, 32mm, 40mm, 50mm, 63mm, 80mm, out of which up to 40mm clips have one hole, while above that they have two holes for fixing.
Fig2 shows the joint link clips. These are available in the sizes 16mm, 25mm, 32mm, 40mm, 50mm, 63mm, 80mm with a thickness of 0.32mm and have one hole up to 40mm while above that they have two hole for fixing.
Link clips are made of tin or brass- coated tin or aluminum.

28. CASING CAPPING WIRING Introduction
This system of wiring is suitable for low voltage installation, in this wiring, cables like vulcanized rubber, insulated cables or plastic insulated cables are use and carried within the wood casing enclosures. The wood casing wiring system shall not be use in damp places and in ill-ventilated places, unless suitable precautions are taken.

29. Material and pattern of casing
All casing shall be of first class, seasoned teak wood or any other approved hardwood free from knots, shakes, saps or other defects, with all the sides planed to a smooth finish, and all sides well varnished, both inside and out side with pure shellac varnish. The casing shall have a grooved body with a beaded or plain- molded cover as desired.

30. Dimensions of casing.
The size of casing and capping to be used for various sizes of 250 volts grade insulated cables in a groove shall be in accordance with those specified in table 1.
Bunching of circuits.
Attachment of casing to wall and ceiling.
Attachment of capping.
Passing over the floors.
Joints in casing and capping.

31. Types of Joint
Straight joint.
Tee joint.
Right- angled joint.
Corner joint.
Tee-bridge joint.
Cross- bridge joint.

32. Straight joint.

33. Tee joint.

34. Corner joint.

35. Half-lap T joint

36. Cross- Joint

37. CONDUIT WIRING
Introduction
In general, a conduit is defined as a tube or channel. Tubular conduit is the most commonly used material in electrical installations. When cables are drawn through the conduit and terminated at the outlet or switch points, the system of wiring is called conduit wiring.

38. Types of conduits.
There are four types of conduits used for wiring.
Rigid steel conduit
Rigid non-metallic conduit
Flexible steel conduit
Flexible non metallic conduit.

39. PVC Fittings and accessories couplers
Elbow
Bends
Tee
Circular boxes
Rectangular boxes.

40. Couplers

41. Elbow

42. Bends

43. Tees

44. Circular boxes

45. Rectangular boxes

46. Junction Boxes

47. DC Motor Introduction of DC motor.
Principal and operation of DC motor.
Motor Characteristics.
Types of Dc motor.
DC Shunt Motor
DC Series Motor
DC Compound Motor.
DC Different ional Compound Motor
Starting of DC Motor
Speed Control of DC Motor.

48. AC MOTOR
Different types of variable speed AC Motors and their control.
Different types of motors used in industries.
Squirrel cage induction motor
Slip ring induction motor
Single phase induction motor

49. Classification and cooling methods
Motor size, speed and their method of wiring
Motor connection and earthling
Application of 3-point, 4 point star delta starters.

50. Types of Single phase induction motor.
Single Phase Motor
Introduction
Types of Single phase induction motor.
Shaded pole motor
Capacitor Start Induction run motor
Capacitor start capacitor run motor.

51. Starter Introduction Requirement of Starter Different types of Starter
Direct on line Starter
Auto Transformer Starter
Star-Delta Starter
Rotor resistance Starter
Working principal of all different types of starter.

52. Lay out symbol of electrical Installation
Fault finding of electrical Installation
Magger
Telephone wiring

53. MEGGER Introduction Varies uses of megger
1) To measure insulation resistance of wire.
2) Testing of faults.
3) Testing of continuities of circuits.
4) To measure earth resistance .
Structure of megger
Megger use as a earth tester

54. Winding Introduction DC machine winding Lap winding Wav winding
- Pole Pitch, Back pitch, Front pitch, winding pitch, coil pitch.
AC machine winding
Single phase winding
Three phase winding
1. Single layer winding
2. Double layer winding

55. Transformer winding Introduction of transformer winding
Prepare data of transformer