shield multicore cables

1、 Overview and Application Fields of Multicore Shielded Wire

Multi core shielded wire is a type of cable widely used in communication, data transmission, medical, security and other fields, with reliable anti-interference and fast transmission rate characteristics. It mainly consists of a conductor, insulation layer, shielding layer, and sheath. Multi core shielded wires can effectively resist external electromagnetic interference while ensuring signal quality, providing important guarantees for high-speed data transmission in various industries. The following is an introduction to the specifications and parameters of multi-core shielded wires.

2、 Conductor specifications

The conductor specifications of multi-core shielded wires mainly include three aspects: conductor material, conductor structure, and conductor diameter. The conductor material is generally copper wire, and some enterprises also use silver wire, copper clad aluminum wire, etc. The construction of conductors can be roughly divided into three categories: braided, twisted, and pear shaped wires. The twisting rate of braided wire is high, which can effectively reduce inductance, but the line resistance is relatively high; The twisted wire has good resistance to twisting, and the line resistance is small, but the inductance is high; The pear shaped line combines the advantages of both, but the cost is also correspondingly high. Common specifications for conductor diameters include 0.08mm, 0.12mm, 0.16mm, etc.

3、 Shielding layer material and structure

The shielding layer of multi-core shielding wire is made of conductive materials, mainly including copper foil and aluminum foil. Among them, copper foil has a high shielding rate but high cost; Aluminum foil has a moderate shielding rate and low cost, mainly used in the field of low transmission frequency. The structure of the shielding layer is divided into two types: aluminum foil shielding and woven shielding. Aluminum foil shielding can provide good shielding effect in high-frequency fields, but it is not resistant to bending and is not suitable for situations that require repeated bending; Braided shielding is relatively flexible and can be repeatedly bent, but its shielding effect is poor in the high-frequency field.

4、 Wiring method

The wiring methods of multi-core shielded wires mainly include binding and welding. Wire binding is the process of adding a sheath to a conductor and inserting the wire directly into the interface for data transmission; Welding is the process of connecting wires through soldering, which can improve the reliability of the connection, but relatively increases the impedance of the line, making it suitable for low transmission frequencies.

5、 Application field

Multi core shielded wires have a wide range of applications, such as electronic computers, communication, medical, security, control, and measurement. Among them, multi-core shielded wires in the communication field are mainly used for data transmission and telephone lines; In the medical field, it is mainly used for equipment such as electrocardiograms, biometrics, and medical imaging instruments; In the field of security, multi-core shielded wires are mainly used for monitoring equipment, security access control, and other fields; In the field of control and measurement, it is mainly applied to measurement and control instruments, as well as automation control systems.

The above is a detailed explanation of the specifications of multi-core shielded wires and an introduction to their application fields. The application range of multi-core shielded wires in various fields is constantly expanding, providing strong guarantees for fast, stable, and safe data transmission. Understanding and mastering their specifications and parameters is crucial for engineers and technicians in various industries.