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Multiple Conductor Cables

Multiple conductor cables, commonly known as multiple conductor shielded cables, are structural cables composed of multiple conductor cores and a general, outer shielding. These are capable of transmitting large amounts of data over short distances, making them ideal for applications in which high-speed data transfer is a priority. Their design also helps protect the data transmission from electromagnetic interference (EMI).

Multiple conductor shielded cables are mostly used in telecommunications, automation, and medical applications. In telecommunications, they are primarily used to link base stations and subscriber units, state-of-the-art electronics, and portable devices. They are also found in automation systems, such as factory control systems, and in medical devices, such as robotic surgery systems. However, their most essential application is in data transmission — which is due to their superior capability to protect signals from EMI.

Composition

Multiple conductor cables consist of a variety of polymers and conductors to form their structural composition. The base material for the cable is typically polyvinyl chloride (PVC) or polyvinylidene fluoride (PVDF). Polyvinyl chloride is a tough, durable, cost-efficient polymer that can withstand a variety of temperatures and environments without degradation. On the other hand, polyvinylidene fluoride is an especially strong and durable polymer, capable of withstanding extreme temperatures of up to 150°C.

The conductors within these cables are generally constructed using copper wire. Copper is an ideal material for transmitting data due to its superior electrical conductivity. It is also much more resistant to corrosion and has a higher tensile strength than alumimum. Copper wires are often braided or twisted together in complex configurations to improve the cables’ EMI shielding capability.

Working Principle

Multiple conductor cables are designed to protect digital signals from EMI. EMI is unintended energy that can interfere with the proper functioning of the signals and equipment that use them. Generally speaking, the digital signals in a multiple conductor cable are sensitive to outside signals. Without proper protection, signals can be contaminated or distorted, resulting in disruptions to the data transmission.

To protect against EMI, multiple conductor cables use a combination of insulation layers and shielding layers. The insulation layers prevent the signals transmitted in the cable from being short-circuited. Meanwhile, the shielding layers, which are composed of a conductive material such as copper or aluminum, form a barrier that absorbs the EMI. This barrier prevents the EMI from entering the cable and disrupting the signals within.

Benefits

Multiple conductor shielded cables are a popular choice among telecommunications, automation, and medical network applications due to their superior capabilities. They are designed to protect digital signals from EMI, which increases the reliability of data transmission. Additionally, they can transmit data over short distances quickly and can often support both analogue and digital signals. Furthermore, multiple conductor cables are generally constructed using strong, durable materials, increasing their lifespan and making them more reliable than regular cables.

Conclusion

Multiple conductor shielded cables are structural cables composed of multiple core conductors and a shielding layer. They are designed to protect digital signals from EMI and are used mostly in telecommunications, automation, and medical networks. Multiple conductor cables are able to transmit large amounts of data over short distances quickly and reliably, making them a popular choice in high-speed applications.

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