Wire and cable are mainly composed of conductive wire core, insulation layer and sheath layer three basic structural components.

The protective covering layer outside the insulated wire core or cable core is called the cable sheath (the protective covering layer outside the sheath is called the outer sheath). From the point of view of wire and cable sheath, braid is one of a variety of wire and cable sheath or outer sheath. However, according to the material used by the wire and cable braid layer and the different parts of the braid layer in the wire and cable structure, the role of the braid layer is not the same.

What's so different? Let's find out!

The role of the fiber braiding layer

For wires, the fiber braid layer is a form of its lightweight protective layer. Its main role is to protect the insulation from or less by a variety of light, heat, tide, low temperature, acid and alkali gas erosion and external mechanical force damage, to ensure the safe operation of the wire.

For the cable, the fiber braid layer is often in the middle of the protective layer to enhance the tear strength of the protective layer, such as the reinforced sheath is in the middle of the rubber or plastic protective layer to add cotton yarn, hemp and other fiber braid layer to improve the protective layer strength.

The role of the metal braid layer

The metal braid layer mainly has two kinds of copper wire braid layer and steel wire braid layer.

First, the main role of the copper wire braid layer is:

1. Shielding effect against electromagnetic interference, such as copper wire braided control cable.

2. Eliminate the shielding effect of the surface potential of the power cable, which binds the power line and eliminates inductive electricity, such as the total shielding of high-voltage cables.

3. The shielding effect of safety protection, braided copper wire outside the main core insulation and good contact with the ground core or ground wire, can react the leakage situation in time, such as shielded mining cables.

Second, the main role of steel wire weaving is:

1. Mechanical protection, such as Marine power cable CF31 type.

2. Withstand longitudinal tensile force, such as magnetic cable WC-GC, WCT type for Marine geological exploration.

3. Magnetic field shielding.

Qingdao Tianxing Cable Co., Ltd. is a technology enterprise specializing in the production of wire and cable in Shandong Province, with more than 150 sets of domestic excellent cable production equipment and testing equipment, excellent production technology, modern testing equipment, to ensure stable product quality and timely supply. The company's main products are power cable, mineral cable, high life wire and cable, radiation crosslinked cable, control cable, computer cable, photovoltaic cable, communication cable, data cable, low smoke halogen free cable, flame retardant series wire and cable.

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