Cables with multiple cores of copper wire are known as electrical cable. However, the term only applies if the number of cores are more than the usual in that type of cable. So, if a typical cable design has 16 cables, it would not be considered a multicore cable. However, if it typically contains just a single core, even fours cores will make it multicore. Multicore cables are very common for audio-visual equipment.
Construction of a Multicore Cable
In a multicore cable, all the cables are bundled together in a single sheath. The function of each cable might is usually different. For instance, AV cables usually have different cores for video, audio, data and power. Usually, the cable will split into different ends for different functions. This type of cable has wide applications because a single cable can perform multiple tasks and is found in many industries.
Putting multiple cores in a single sheath is a common construction for multicore flexible cables, but it can also be built from existing cables. The cores are just twisted together to form a single cable. However, a typical cable construction will have stranded copper wires. These are the conductors. These are sheathed in a PVC layer, which acts as an insulation. After this comes the copper jacket. The wires are then again enclosed in a PVC covering.
Applications for multicore cables
The unique construction multicore cables make it suitable for certain applications, particularly where space is limited or where we want a cable with multiple functions. The use of multicore cables entertainment equipment, particularly audio-visual tools demonstrates both these factors. We need cables that can carry the audio, video and power. We can achieve all three in one cable if we make it multicore. We also don’t want multiple wires tangling up in one space.
In certain applications, such as in an automobile, space is limited. Multicore cables are the only way to utilise a small space with compact cabling. Multicore cables have excellent insulation against heat and fire. Hence, these cables can be used in areas that are prone to overheating or fire. In areas
Unique Advantages of Multicore Flexible Cables
A multicore cable is typically very high on performance. This is largely because the cable’s construction demands that we use copper, since it is less susceptible to electric or thermal heating. We also use better quality PVC material in jacketing the cables to ensure that there is no overheating. The result is that we get a superior cable which gives us an excellent performance.
The copper wiring makes the cables quite flexible. In fact, multicore cables often come with extra flexibility. This is important because these cables are used in areas where flexibility is often highly required. For instance, in case of rotating turrets, we need cables that can be coiled and quickly uncoiled when required. We need flexibility to see that the cable does not develop cracks or breaks.
Copper is one of the most effective elements when it comes to creating corrosion resistant wiring. Copper is used in many places where we need high resistance to corrosion. This is combined with the heavy jacketing that is the norm for multicore cables. Together these two elements make the multicore cables very resistant to corrosion. This is important because multicore cables are often used in very hostile environments like an engine bay.
The key advantage of multicore cables is, of course, that it is multi-functional. The different wires inside the cable perform different functions. So, we can use the same cable for multiple purposes. This is the main reason it is used in audio-visual equipment. The different cores carry different functions, such as, audio, visual and power. Without a multi-core cable, we will have to deal with a tangle of cables.
By combining different functions within the same cable, a multicore cable automatically saves space. It is ideal in very tight spaces, such as aeronautic and automobiles where the cabling must be contained within very small areas. Multicore cables are also very flexible. This allows for easy coiling and uncoiling without the cables cracking. All this makes the multicore cables ideal for small spaces.