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How to distinguish Wire & Cable?

      And the difference between the wire

     In fact, the "wire" and "Cable" and there is no strict boundaries. The core number is usually small, small diameter products, the simple structure of the product called wire, not insulated as bare wires, the other is called the cable; conductor cross-sectional area larger (greater than 6 mm2) wire called a large, relatively small (less than or equal to 6 mm2) as a small wire, insulated wire, also known as wire cloth.

 

     And the difference between cable

     Cable: When the phone will convert acoustic signals into electrical signals after transmission lines to the switch, and then from the switch through the line will be directly transmitted to the other signals on the telephone answering this call transmission line is cable. Mainly copper wire inside the cable. Wire diameter 0.32mm, 0.4mm and 0.5mm points, the bigger the diameter, the stronger communications capabilities; also divided by the number of cores, there are: five pairs and 10 pairs, 20 pairs and 50 pairs, 100 pairs, 200 for so, here comes the number refers to the maximum number of users cables accommodated; well by Packaging division, which I do not quite understand. Cable: its size, weight big, communication ability, can only be used at close range communications. Optical: When the handset converts the acoustic signal into an electrical signal transmitted to the switch via a line, and then the electrical signals transmitted by the switch to a photoelectric conversion device (converting an electric signal into an optical signal) transmitted via the other line of the photoelectric conversion device (converts the optical signals into electrical signals), and then to exchange equipment, to another answer on the phone. Between the two lines of the photoelectric conversion device is the cable. It is only with the number of cores points, the number of cores are: 4,6,8,12 on and so forth. Optical: its size, low weight, low cost, large communication capacity, communication ability and other advantages. Due to many factors, it is only used for long-distance and point to point (ie, two switch rooms) communication transfer between. The difference between them: the internal cables are copper wire; internal glass fiber optic cable. Fiber optic communications cable is a certain amount of fiber optic cable in a certain way the composition of the heart, outsourcing jacket, and some also cover the outer sheath to achieve a communication line optical signal transmission. Has worked in Shanghai, Beijing, Wuhan and other places to carry out field trials. Soon after in the local telephone network as interoffice trunks trial in 1984 after gradually for long-distance lines, and began using single-mode fiber. Communications cable than copper cables with greater transmission capacity, long distance relay, small size, light weight, no electromagnetic interference, has developed into a long haul since 1976 after the city relay, coastal and transoceanic submarine communications , as well as local area network, a private network such as a wired backbone transmission lines, areas of the city and start the development of the subscriber loop wiring network for FTTH, width integrated services digital network to provide generation of the transmission line. Cables are typically made ​​of several conductors or groups [each group of at least two] twisted rope made ​​of a similar cable, between each group of mutually insulated conductors, and often twisted around a center, with the height of the wrapped insulating cover layer; especially the first submarine cable: There are differences between the materials. Cable with metal material (mostly copper, aluminum) as conductor; glassy fiber optic cable to the conductor. There are differences between the transmitted signal: second. The electrical signal transmission cable. The cable is an optical transmission signal. Third: There are differences between the applications. Cable is now used for energy transmission and low-end data transmission (such as a phone). Fiber optic cable used for data transmission.

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