NEWS

The wires that everyone sees in daily life are all accustomed to, but most of the cables only stay at the point of "heard, never seen". So, what is the difference between wires and cables, let's tell you some basic common sense of wires and cables.

A wire is a wire used to transmit electrical energy or electrical signals, and a cable is usually an inner core consisting of two or more mutually insulated wires, and the outer whole is covered with an insulating and reinforcing layer to transmit electrical energy or electrical signals. wire. In layman's terms, wire is a general term for wires, most of which are commonly used single-conductor insulated wires, and their commonly used models are: BV, BVR, etc.; while cables are relatively large, with thick conductors, cores, insulation and other characteristics More conductors are divided into power cables, control cables, computer cables, overhead cables, communication cables, mineral fireproof cables, etc.

It can be roughly divided into:

1. The structure of wires and cables is different. The wires are generally composed of single-core or multi-strand copper wire conductors, and the conductors are covered with insulation; while the cables are generally composed of one or several insulated wires, and the outer insulation layer will also have a layer of sheath, and Depending on the type of each cable, the use is different, and the specified characteristics are different, and the insulating materials and sheath materials used are also different.

2. The sizes of wires and cables are different. Because of their simple structure, wires are basically small wires below 10 square meters (10mm² is the conductor cross-sectional area), while cables are basically thicker than 10 square meters due to complex structure and characteristic requirements. wire.

3. The transmission capacity of wires and wires is different. As a small wire with a simple structure, the resistance of the conductor is limited. If it is a high-power operation, a cable must be used. The conductor of the wire basically chooses copper core, and the cable is Both copper core and aluminum core can be selected. Of course, the copper core conductor is definitely better than the transmission capacity of the aluminum core conductor.

4. The degree of softness and hardness of wires and cables is different. Wires are generally used for household, installation, fire protection, and lighting. According to the use situation, single-core conductor hard wires or multi-strand conductor soft wires are selected; cables are responsible for the relative hardness due to their special structure. Stronger, suitable for engineering laying, hydropower, peripheral power grid, etc.

5. The rated voltage of wires and cables is different. Most of the rated voltages of wires are 300/500V and 450/750V, while the rated voltage of cables is 0.6/1KV-26/35KV, which varies from low voltage to high voltage.

All in all, wires and cables are collectively referred to, which can be commonly understood as: small diameters are called "wires", and large diameters are called "cables"; simple structures are called "wires", and complex structures are called "cables". With the continuous advancement of science and technology, there are many types of "cable in wire, wire in cable", everyone can choose the appropriate wire and cable according to their actual situation.