How to select wire and cable correctly???


For professional electrical and mechanical, electrical engineering personnel, the selection of wire and cable products is a very easy thing.

But for many ordinary users and those who have just entered the industry, they need to know. In the purchase, according to their own electricity load to buy the right wire, but also to see the wire and cable instructions introduced in the raw material components, model specifications, etc., so as to reduce the occurrence of security risks, but also make life long.

Specifically, there are three main points to be concerned about. 1. Wire appearance consumers in the purchase of wire should pay attention to the appearance of the wire should be smooth, insulation and sheath layer without damage, the logo printed word clear, hand touch the wire without greasy feeling.

From the cross-section of the wire, the entire circumference of the wire insulation or sheath thickness should be uniform, should not be biased core, insulation or sheath should be a certain thickness. 2. Conductor wire diameter Consumers should pay attention to the conductor line diameter and the certification on the express cross-section, if the conductor cross-section is small, easy to cause a short circuit heat.

It is recommended that the home lighting line use 1.5 square millimeter and above specifications of the products, air-conditioning, microwave ovens and other large-power household appliances should be 2.5 square mm and above the specifications of the wire.

3. Standardize the use of wiring, the best use of the fixed line BV single core line through the tube, pay attention to the wiring do not touch bad wires, decorate the room do not touch the bad wire; in the middle of the same route do not connect, wire access to electrical boxes (boxes) do not touch the line. The above is mainly introduced, general commercial and civil residential users identify the method of wire and cable. For the electrical and mechanical procurement staff, the general also to identify product quality.