The effect of PEEK braided sleeve on wire and cable

Wire and cable are mainly composed of three basic structural elements: conductive core, insulating layer and sheath layer. Wire and cable are mainly composed of three basic structural elements: conductive core, insulating layer and sheath layer. There is no strict limit for the difference between wires and cables, but in a broad sense, the cable structure is more complex, it has a complex sheath layer, while the wire structure is relatively simple, some only have conductors and insulating layers, and some only have PEEK braided sheaths. The tube is waxed light sheath or covered with a light soft sheath.

The conductive core of the wire and cable is used to transmit electric current.
In order to reduce power loss and voltage drop, the conductive wire core is generally made of copper and aluminum with high conductivity.
The function of the insulating layer is to prevent the current from leaking in the radial direction and ensure the safety of use.
Therefore, the insulating layer is required to have good electrical insulation properties. Heat resistance and certain mechanical strength.
The protective covering outside the insulated core or cabled core is called the sheath of the cable.
The main function of the sheath is to protect the insulating layer. Its main properties are moisture-proof, oil-proof and anti-corrosion.
Anti-sun aging, flame-resistant, and mechanical protection, and also has the functions of anti-electricity, anti-magnetic dry resistance, etc. From the perspective of wire and cable sheath, Peek Braided Sleeve is one of many kinds of sheath or outer sheath of wire and cable.
However, according to the material used in the wire and cable PEEK Braided Sleeve layer and the different parts of the braided layer in the wire and cable structure, the functions of the braided layer are obviously different.
1. The function of fiber PEEK Braided Sleeve layer:
For electrical wires, a fiber braid is a form of lightweight protection.
Its main function is to protect the insulation from or less affected by various light, heat, tide, low temperature, acid-base gas, etc. and external mechanical damage, so as to ensure the safe operation of the wire.
For cables, the fiber braiding layer is often in the middle of the sheath to enhance the tear resistance of the sheath. For example, the reinforced sheath is to add cotton yarn, hemp and other fiber braiding layers in the middle of the rubber or plastic sheath to improve the strength of the sheath. Sheath strength.
2. The function of the metal PEEK braided sleeve: the metal braided layer mainly includes copper wire braided layer and steel wire (iron wire) braided layer;
l. Shielding against electromagnetic interference, such as tinned copper braided blue cables, copper braided control cables, etc.
2. Eliminate the shielding effect of the surface potential of the power cable. It plays the role of binding power lines and eliminating induced electricity, such as the total shielding of high-voltage cables.
3. The shielding effect of safety protection. Copper wire is braided outside the main core insulation and is in good contact with the ground core or used as a ground wire, which can respond to leakage conditions in time, such as shielded mine cables.
The main function of the steel wire PEEK braided sleeve is:
(1) Mechanical protection.
Such as marine power cable CF31 type.
(2) To withstand longitudinal tensile force, such as WC-GC and WCT type magnetic measuring cables for marine geological exploration.
(3) Magnetic field shielding.