Wire Cable: Proper Sizing Of Cables
Electrical materials need to be chosen accordingly to make them fulfill their purposes, especially in the case of a wire cable. If the wrong wires are used, it could lead to the malfunctioning of the whole electrical system, or worse, it could pose danger to people.
Selecting the right kind of cable to use depends on the application intended for it, and the types might vary from solid wires, to coaxial cables, or to stranded cables, among others. The types of cables already have specific applications that they would be ideal for, which leads to only one thing left for consideration: the size of these electrical materials.
A wire cable should be sized according to the designed rating of the whole electrical system. For instance, the cables that should be used to connect a service entrance of a building to the source of electrical power would be based on the power that is delivered by the main source. Equally, the size of the cables to be used inside the building would depend on the rating of the service entrance.
As an example, suppose that for a given branch circuit, a 20 Ampere rating is specified to provide enough electricity to the circuit. In this case, the wire cable to be chosen is one that matches this rating, which can be found on the table of specifications for wire cables. The type (according to the material of the cable – whether it should be THW, Al, Copper, etc.) would depend on the designer whose primary responsibility is to select the most appropriate cables for the system.
If the installed wire cable is not appropriate, it might not be able to carry the amount of current that would flow through it while in service. This could cause fires or accidents, which are not acceptable in any electrical design. With this, it should be ensured that proper consideration is made with regard to these factors to prevent the system from failure.
