Suitable Size of Electric Cable

Update:07-12-2017
Summary:

How to find the suitable size of Electric Cable & wire […]

How to find the suitable size of Electric Cable & wire for electrical wiring installation? How to Choose the Right Wire or Cable? When wiring a house, there are many types wire to choose from, some copper, others aluminum, some rated for outdoors, others indoors.

In selecting a wire or cable for an application, the following factors should be considered:

CONDUCTORS

Is the material to be bare, tinned or plated copper, or perhaps, aluminum or bronze, nickel or other alloy?

INSULATION

What temperature will the wire be subjected to in the application in which it will be used? Will the wire be exposed to moisture, chemicals or oils?

COVERINGS

Will the application require a protective covering such as nylon, cotton, glass or metal braid over the insulation?

PROCESSIBILITY

Will the wire require processing such as stripping or cutting? Will processing be done by hand or with an automated machine?

For a given load, cable size may be found with the help of different tables but we should keep in mind and follow the rules about voltage drop.

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