What is the sheath line, two minutes can understand the difference between ordinary wire and cable and sheath line?

What is the sheath line

Definition of sheath line:

Sheath wire is actually two or three single core wires combined together with insulation sheath made of wire. Not only BV wire, but also can not be BVR wire. Three or two parallel BV wires are coated with a layer of insulation. Common PVC sheath wire is expressed by letters with two V, such as TRVV, H05VV-F wire, because a V represents the insulation layer is PVC material, and another V represents the sheath layer is PVC material. After adding this layer of insulation is sheath wire, sheath wire is also one of the necessary wires in most homes, usually composed of three or two cores.

Classification of sheath line:

There are many kinds of sheath line can be divided into nylon sheath line, rubber sheath line, cross-linking sheath line, armored sheath line and PVC sheath line, mainly to see what material it uses to make the sheath, and the shape and hardness are not the same, such as RVV sheath line and hard sheath is BVV wire, and BVVB flat line. Anyway, the shape of the sheath line is different, all called sheath line.

Function of outer sheath of wire:

Because of today's home decoration, it is generally used to lay wires with wire pipes, and then lay three copper wires (live wire, zero wire, ground wire) through wire pipes. Because the sheath wire has more than one insulator than the ordinary wire, it is relatively safe in the process of use, so it is more useful in the field of home decoration in the building. Sheath wire is used by most people to make power cords. In the past home decoration, sheath wire was used as lighting and power cord; It can be buried directly in the wall, or it can be fixed to the wall. Its advantage is that it can be laid without threading pipe or trough, which is very economical. The sheath of the wire is taken as the protective effect of the replacement pipe and trough, which is the outermost layer of sheath insulation. Laying is convenient and fast, beautiful and generous, safe to use. It is the choice of connecting household mobile plug board, refrigerator or air conditioner and other electrical appliances.

What are the common sheath line models:

Our common copper core sheath wire is generally: BVV, RVV, KVV, BVVB, RVVB, and aluminum sheath line BLVV, BLVVB sheath line is the same as hard sheath line (BLVV, BLVVB) and copper core soft sheath line RVV, RVVB, BVVB many kinds, mainly copper core sheath line in the letter does not have L, because L means aluminum. According to its use environment and specific requirements to specify, can also be divided into round sheath line and flat sheath line. The circular sheath wire is a multi-strand copper core structure, and the flat wire is generally composed of a single conductor.

The above is the copper core material conductor wire, in the aluminum core sheath wire generally with these letters on behalf of the sheath line, both "L: represents aluminum core, V: represents PVC insulation, V: represents PVC sheath". The others are the same as copper core sheath wire.

 What is the difference between ordinary wire and cable and sheath wire

Because the sheath wire can actually be understood as two or three parallel BV wire, photovoltaic cable, H05RN-F cable, H07VV-K wire and nylon cable, cross-linked polyethylene and PVC sheath wire and so on. BV lines originally only have a layer of insulation, so three or two parallel BV lines combined together, outside a layer of insulation. This outermost layer of insulation is the sheath wire. No matter what the occasion, copper core sheath wire is one of the commonly used wires, usually composed of three or two cores.

In a nutshell, sheathed in the field of electric power line terms can represent the different types of wire and cable products, but a wise man will be in front of the line of sheath wires more models, it sounds better resolution, such as nylon sheathed wire, rubber sheathed wire, RVV sheathed wire and so on, with such a concept is understanding of sheath line will be a lot better.

Well, this is about "what is the sheath line, two minutes can understand the difference between ordinary wire and cable and sheath line?" The introduction, hope to help you! It is recommended to continue to pay attention to Ruiyang cable for more information about sheath cable!