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How to choose the right wire and cable
Nov 30, 2018

For professional electromechanical and electrical engineering personnel, it is very easy to select wire and cable products. But for many ordinary users and those just entering the industry, it is necessary to understand.

When purchasing, you should choose the appropriate wire according to your own power load, and also look at the raw material composition, model specifications, etc. described in the wire and cable manual, so as to reduce the occurrence of safety hazards and also make the life lasting. . Specifically, there are three main points that need attention.

1. Wire appearance

When purchasing electric wires, consumers should pay attention to the appearance of the wires should be smooth and flat, the insulation and the sheath layer are not damaged, the logo is printed clearly, and there is no greasy feeling when the hand touches the wires. From the cross section of the wire, the thickness of the insulation or sheath on the entire circumference of the wire should be uniform and should not be eccentric. The insulation or sheath should have a certain thickness.

2. Conductor wire diameter

When purchasing electric wires, consumers should pay attention to whether the conductor wire diameter matches the cross section clearly indicated on the certificate. If the conductor cross section is small, it is easy to cause the wire to heat up and cause a short circuit. It is recommended that household lighting line wires use products with a size of 1.5 square millimeters or more; household appliances with higher power such as air conditioners and microwave ovens should use wires of 2.5 square millimeters or more.

3. Standard use

Wiring should be standardized. It is best to use BV single-core wire to wear the fixed line. Be careful not to damage the wire during wiring. Do not damage the wire when decorating the room; do not connect the connector in the middle of the same route; connect the wire to the electrical box (box) Do not touch the line.

The above mainly introduces the method of identifying wire and cable for general commercial and residential residential users. For the mechanical and electrical engineering procurement staff, this is also the case to distinguish the quality of the product.


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