Anatomy of an electrical cable or wire
These are wires and cables that transfer electricity and signals to operate different kinds of appliances in our homes and offices. The world can go dark if the wires and cables go on strike even for one day.
Do we know how they work and how they are able to pass current from one to another end?
Wire or cable is a metal thread that is covered with a heat resistant rubber or plastic. The good electrical conductors are used to provide a good flow of electric current. The conductor can be of any metal such as aluminium and copper.
Making Process of a Wire or Cable:
Firstly, the wire-drawing process comes into existence. The wire-drawing process consists of making the diameter to a perfect size, which increases the ductility and conductivity of the wire. Once the diameter is reduced, the wires are drawn further to adjust the diameter that is needed by each conductor.
The second stage is all about a process called annealing, according to which the wires undergo a heating treatment. The process annealing involves heating of metal and cools it down slowly to increase the durability and flexibility of the metal. The main focus of this process is to increase the conductivity of the wire.
The third stage is all about the insulation of wires. Insulators can be of different types such as vulcanized rubber, impregnated paper, varnished cambric, and PVC. The insulation material should have the strength of bearing high temperatures during electricity fluctuations.
Difference between Cable & Wire
The main difference is that wire is a single conductor whereas a cable is a group of conductors. All these conductors are made of the same material whether you will find it in copper or aluminium. On the other hand, the wires you see are bare and twisted. But, some of the wires are coated or covered with a PVC layer.
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