Two Core Cable
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.
Three Core Cable
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.
- 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.
Four Core Cable
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