There are many types of electronic wires, but they can be divided into multi-core electronic wires and single-core electronic wires according to the number of cores. What is the difference between multi-core electronic wire and single-core electronic wire? Today, the editor of Kangrui Connector will explain it to you one by one.

The core of the electronic wire determines the current flowing through the wire and determines the application scenario of the wire. In the case of the same area, the ability to transmit current points is relatively large, and the heat generation is definitely greater than that of a single-strand wire. Multi-strand wires are soft and easy to handle, while single-core wires are difficult to handle. The single-core hard wire is stripped of the insulating layer, and it is a solid copper wire, and the cross-sectional area is generally 1.5mm2, 2.5mm, 4mm2.

As for why copper is used instead of aluminum, the reasons are: high internal resistance, low current-carrying capacity, poor tensile strength, easy to form an oxide layer, and short service life. For wires of the same cross-sectional area, the diameter of the multi-core flexible wire is smaller than that of the single-core hard wire, and it is directly tightened with screws. The more severe the strand breaking phenomenon is, the more the actual total area of ​​the wire at the joint is reduced, which is equivalent to reducing the wire diameter specification and the wire carrying capacity.

Reviewing Editor: Liu Qing

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