The important role of Kevlar Braided Sleeve on wires and cables

wires and cables are mainly composed of three main structural components: conductive core, insulating layer, and protective sheath. Electric wires and There are no strict boundaries between cables, but in a broad sense, the structure of cables is more complicated, with complex sheaths, while the structure of wires is very simple, some have wires and insulation, and some only have Kevlar Braided Sleeve can be coated with a lightweight sheath or covered with a lightweight soft sheath.

The conductive core of wires and cables is used to transmit alternating current. In order to reduce electromagnetic energy loss and current, the conductive core is generally made of copper and aluminum with high conductivity. The function of the insulating layer is to prevent the current from leaking along the axial direction and ensure The use of commercial insurance requires that the insulation layer must have excellent insulation properties, temperature resistance and impact toughness. The protective soil layer outside the insulated cable core or cable core is called the sheath of the cable. The important role of the sheath is It is to protect the insulation layer. Its main functions are waterproof, oil-resistant, anti-corrosion, anti-aging, flame retardant, and mechanical protection. It also has the functions of preventing electric shock, anti-magnetic resistance, etc. From the perspective of wire and cable sheathing Generally speaking, braided network layer is one of many types of sheaths or outer sheaths of wires and cables. However, depending on the materials used in the braided network layer of wires and cables and the different positions of the braided layer in the cable structure, the role of the braided layer It's obviously different.
1. The role of the fiber braided network layer: For wires, the fiber braided layer is a form of light protection layer. Its main function is to protect the insulation layer from or be less exposed to various types of light. Corrosion from heat, moisture, low temperature, strong acid and alkali exhaust gas, etc. and damage from external mechanical forces ensure the operation of the wire. For cables, the fiber braid is usually in the middle of the sheath, thereby improving the resistance of the sheath. Wear strength, such as thickened cable sheaths, add cotton yarn, hemp and other fiber braiding layers inside the eraser or plastic sheath to increase the sheath strength.
2. Metal braiding layers include copper wire braiding and stainless steel wire braiding:
(1) Anti-interference signal shielding effect, such as tinned copper wire braided blue cable, copper wire braided frequency conversion cable, etc.
(2) It has a shielding effect to solve the potential difference on the surface of wires and cables. It restrains the cables and solves the induced current, such as the total shielding of high-voltage cables.
(3) To protect the shielding function, braid copper wire outside the main core insulation layer and have a good connection with the ground core or be used as a grounding wire, which can directly reflect the current leakage situation, such as shielded mining cable.
3. The key role of the Stainless Steel braided sleeve network administrator is
(1) Maintenance function of mechanical equipment, such as ship wire and cable CF31 type.
(2) Bear the vertical breaking force, such as WC-GC, WCT type magnetic cable for deep sea geological exploration.
(3) The electromagnetic field is shielded.