This document discusses the different types of cables. It defines a cable as two or more wires bonded, twisted, or braided together. The types of cables covered include single core cable, 2 core cable, 3 core cable, 3.5 core cable, 4 core cable, armoured cable, and unarmoured cable. Each cable type is defined and its common uses are described. For example, single core cable consists of stranded conductors twisted together in PVC covering and is used for supplementary earth bonding, while armoured cable contains one or two layers of steel for mechanical protection.

1. By : Kuldip Barsadiya
En.no : 130460109004
Guided By:
Prof. Ullash Gohil
UNIVERSAL COLLEGE OF ENGINEERING
&
TECHNOLOGY
1st SEM Electrical Engineering
SUBJECT: ELEMENTS OF ELECTRICAL ENGINEERING(2110005)

2. 
 What is Cable ?
 Types of Cable ?
 What is Single Core Cable ?
 What is 2 Core Cables ?
 What is 3 Core Cables ?
 What is 3.5 core Cables ?
 What is 4 core Cables ?
 What is Armoured Cables ?
 What is Unarmoured Cables ?
Contents

3. 
 A cable is most often two or more wires running
side by side and bonded, twisted, or braided
together to form a single assembly.
What is Cable ?

4. 
1. Single core Cable
2. 2 core Cable
3. 3 Core Cable
4. 3.5 core Cable
5. 4 Core Cable
6. Armoured Cable
7. Unarmoured Cable
Types of Cable

5. 
A single core cable consists of stranded conductors
twisted together and housed in a PVC covering. It
comes as a 6 mm sq. single core, colour coded green
and yellow, and is used for supplementary earth
bonding.
Single Core Cables

6. 
 In 2 Core cable, one conductor acts as a face and
another acts as natural conductors, both the
conductors have equal cross sectional area.
 It is used in telephone service and to connect
computer devices
2 Core Cable

7. 
 In 3 Core cable all the conductors have equal cross
sectional area. 3 strands carry R,Y & B phase
respectively
 It is used as a Neutral wire.
3 Core Cable

8. 
 3conductors are having the same cross sectional area
& are used for 3 different phase. Therefore this
conductor is treated as half conductor and hence the
name is 3.5 core cable.
 It is used to carry the Neutral Current.
3.5 Core Cable

9. 
 In case of unbalanced load some neutral current
exists. Therefore in some cases 4 core cable is
proffered.
 It is used for lighting, load distribution &
applications where unbalanced loading conditions
occur frequently.
4 Core Cable

10. 
 It consists of one or two layers of galvanized steel
wire or steel tap.
 It is used protection against mechanical injury.
Armoured Cables

11. 
 Constructions of unarmoured cables are same as that
armoured cables expect that Unarmoured cables are
not provided with armouring.
 Unarmoured cables also consists of all parts such as
insulation metallic sheath, bedding & serving.
Unarmoured Cables

12. 