When it comes to optical cables and cables, everyone will probably not be unfamiliar. Indeed, optical cables and cables are very common items in our daily lives, and they take on our communication tasks. Although many people often use it, they often fail to distinguish the difference between the two. In fact, although the two cables seem not much different, they are actually quite different. This article will introduce you to the difference between optical cables and cables, so that you can refer to them when you need them.

Cable characteristics:

Generally, products with a small number of cores, small product diameters, and simple structures are called wires, those without insulation are called bare wires, and the others are called cables; those with a larger conductor cross-sectional area (more than 6 square millimeters) are called large wires, and smaller (Less than or equal to 6 square millimeters) are called small wires, and insulated wires are also called cloth wires. This is relatively simple and easy to understand. Cables generally have more than two layers of insulation, most of which are multi-core structures, wound on the cable reel, and the length is generally greater than 100 meters. Wires are generally single-layer insulated, single-core, 100-meter rolls, wireless disks.

Oxygen chamber wires often use BV, BX, RV, RVV series wires, of which: BV——copper core PVC insulated wire, long-term allowable temperature 65℃, minimum operating temperature -15℃, working voltage AC 500V, DC 1000V, fixed Laying indoors and outdoors, it can be applied in the open or in the dark.

RVV——Copper core PVC insulated and sheathed flexible wire, allow long-term working temperature 105℃, working voltage AC 500V, DC 1000V, used in damp, high mechanical protection requirements, frequent movement and bending occasions. In fact, there is no strict boundary between "wire" and "cable".

Common cable types: VV means: PVC insulated (first V), PVC sheath (second V) YJV22 means: cross-linked PVC insulated (YJ), PVC sheath (V) , Steel belt Kaizhuang (22) models with "ZR" or "FR" are flame retardant cables (wires). 　　

The difference between cable and optical cable

1. There is a difference in material. Cables use metal materials (mostly copper, aluminum) as conductors; optical cables use glass fibers as conductors.

2. There is a difference in the transmission signal. The cable transmits electrical signals. The optical cable transmits no signal.

3. There are differences in the scope of application. Cables are now mostly used for energy transmission and low-end verse information transmission (such as telephone). Optical cables are mostly used for data transmission.

Through the above introduction, we have roughly understood the difference between optical cables and cables. This article mainly introduces the characteristics of cables and the differences between the two. From this we can see that there are three main differences between the two. One is The difference in material is the difference in the transmission signal and the difference in the scope of application. In general, there are many differences between optical cables and cables. When choosing and using them, you must pay attention to your actual needs to choose, so as to avoid trouble caused by improper use.