Shielded Cable Types
Shielded cable, otherwise known as screened cable, is an electrical power cable that consists of at least one insulated conductor, which is held within a form of conductive layer. The shield is made of a form of metal, for example copper, which is braided, non-braided metal tape or a layer of a conducting polymer. Then, a jacket normally covers up this shield. Below is a description of three examples of shielded cable: fiber optical cables, building wire and coaxial cable.
Fiber Optical Cables
This form of shielded cable is made from a number of optical fibers. Each of these fibers has its own coating of plastic in a number of layers. This acts as a protection for the fiber. The layers act to give strength to the fiber. However, they play no part in its wave functioning. When used indoors, the fiber with its jacket is usually put with a number of flexible fibrous polymer strength members within a plastic cover to form a cable. If the cables are to be used outside, then a more robust construction is needed. Such cables are used mainly in fiber-optic communication. This allows for transmissions over bigger distances and larger bandwidths. They can also be utilized for illumination as well as other applications including fiber lasers and sensors.
Building Wire
This form of industrial cable, which is used to construct a range of properties from industrial and commercial to residential. There are a number of types available and numerous conductors. It is also known as branch circuit wiring and is able to conduct an electrical current to external appliances. It can also be used for power distribution and branch circuits. The way in which such shielded cable is rated is due to the voltage at which it operates and the maximum temperature at which it can function. Building alloys, which are linked with connection flexibility and performance, are copper and aluminum. The material chosen depends on a number of factors including the amount of power required by the circuit and how large the building and the environment in which the wire will be.
Coaxial Cable
This is a form of electrical power shielded cable, which consists of an inner conductor that is covered by an insulting layer which is itself then covered by a conducting shield. Its name derives from the fact that the inner conductor and the outer shield have an identical geometric axis. It is used to transmit radio frequency signals, for example, to connect a receiver and a radio transmitter to their appropriate antenna, Internet connection or cable television signal. Unlike other shielded cable, they conduct a lower frequency such as audio. The cable coaxial standard is how such cables are categorized. There are three main types: RG59/U, RG6/U Quad shield and RG11/U.
Shielded cable has very important implications. There are a number of type's available including coaxial cable and building wire and fiber optical wire, all of which have different applications.
Shielded cable is important for a number of applications. As these examples have demonstrated, such wiring has major implications both for domestic and commercial use. It is especially important for dealing with issues concerning signal strength and electromagnetic interference.