Electric fencings are a replacement for the barbwire and wooden fencing. Though, the barbwire fencings cost lesser than the electric fencing, they have been criticized for hurting animals. A barbwire can efficiently hold an animal in the fencing but when an outrageous animal tries to escape the fencing it is bound to get hurt seriously. The best solution for this is an electric fencing. An electric fence helps in containing the animals in a small place without injuring the animal. Electric fence mainly consists of four major parts the first one being the mains and energizers then a conduction line, insulator and an earth stake. 

The mains energisers are considered to be the heart of an electric fence. They act as a source and supply current to the conduction line. And a current source needs a conduction line to pass the current from a higher potential region to a lower potential region which is earth here. The earth is a zero potential so the whole current passes into it. Then we need insulators which are electric fencing posts here. An electric fencing post gives support to the fence and also acts as an insulator which keeps a check on current leakage. Normally, when an animal tries to escape it gets caught in this fence then a mild current passes through the animal into the ground and gives a shock to the animal. There by an electric fence acts as a psychological barrier with out hurting it much. You can buy these fencing materials individually or as a whole through electric fencing kits.