Electrical Cables And Its Uses

Cables are different from wires, and their uses are also different. Here are some details about the differences between wires and cables.

The basic key difference between wire and cable online is that a wire is a single conductor, while a cable is a group of conductors. They are made of the same material, but for different purposes. Cables are used to connect two or more devices so that electrical signals or power can be transmitted from one device to another. Cables are versatile and must be tailored for them. Cables are widely used in electronic equipment for power and signal circuits.The different kinds of electrical cables are:

The term "cable" originally refers to a nautical line of multiple ropes used to anchor ships, and in an electrical environment, cables (such as wires) are used to carry current.

Ribbon Electric Cables

It is composed of multiple insulated wires extending parallel to each other, used to transmit multiple data simultaneously.

Coaxial Cables

It is composed of solid copper or copper-plated steel conductors and is wrapped in a metal braid and metal tape. It is completely covered by an insulating protective jacket. This type of cable is usually used to transmit TV signals (its higher bandwidth makes it more suitable for video applications) and to connect computers to the network or the Internet. Coaxial cable not only has stable data transmission capacity, but also has anti-interference ability, which can effectively protect the signal from interference.

Multi-conductor cable 

Multi-core cables have two or more conductors insulated from each other. Their purpose is to protect signal integrity by reducing hum, noise and crosstalk.

Paired cable 

Consists of two separately insulated conductors, usually used in DC or low frequency AC applications. A twisted pair cable is actually a pair of insulated wires twisted together. Although this does help reduce external noise, these cables are still very susceptible to noise.

The label of the cable is very important, it provides a lot of information about its insulation type, number of wires and wire specifications. Here are some detailed information about cable labels.

14-2G: The cable contains two insulated wires and a grounding wire; the single wire is No. 14 wire.

600 V: The maximum rated voltage of this cable is 600 volts. It is used for home wiring almost every time.

The most important label is the insulation or plastic coating around the wire. These are some common labels written on wires.

• THHN
• THWN
• THW
• XHHN

The full meaning of these letters is as follows:

• T: Thermoplastic insulation, a fire-resistant material
• H: Heat-resistant; able to withstand temperatures up to 167 F.
• HH: Highly heat-resistant; able to withstand temperatures up to 194 F.
• W: “Wet,” or approved for damp and wet locations; this wire is also suitable for dry locations
• X: Insulation made of a synthetic polymer that is flame-retardant
• N: Nylon-coated for resistance to oil and gasoline. 

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