What is the difference between wire and cable and wire harness?

A wire and cable used to transmit electrical (magnetic) energy, information and electromagnetic energy conversion wire products, wire and cable in the broad sense of the term is also referred to as cable, cable in the narrow sense of the term refers to the insulated cable, which can be defined as: a collection of the following parts; one or more insulated cores, as well as their respective insulation may have a covering layer, the total protective layer and the outer layer, the cable may also be additional to the conductor is not insulated. Used to transmit electrical (magnetic) energy, information and electromagnetic energy conversion wire products. Wire and cable in the broad sense is also referred to as cable, the narrow sense of the cable refers to the insulated cable. It can be defined as a collection of the following parts: one or more insulated cores, as well as their respective coverings may have, the total protective layer and the outer jacket, the cable may also have additional uninsulated conductors. The main features of this type of products are: a wide variety of specifications, a wide range of applications, the use of voltage in 1kV and the following more, in the face of special occasions continue to derive new products, such as fire-resistant cables, flame-retardant cables, low-smoke halogen-free / low-smoke halogen-free cables, anti-termite, anti-rodent cables, oil/cold/temperature/abrasion-resistant cable, medical/agricultural/mining cables, thin-walled wires and so on. Second, the harness (circuit group) for a certain load source group to provide service equipment in general, such as trunk lines, switching devices, control systems. The basic research content of the theory of voice service is to study the relationship between the volume of voice service, call loss and the capacity of the wire harness, therefore, the wire harness is a part of the theory of voice service. Harness is an important basic concept in voice service theory. Load source is the service object of the harness, usually refers to the user equipment; broadly speaking, the upper level of equipment is the next level of equipment load source. In telephone communication, the load source is also known as the talk source, the number of service devices contained in the wire harness, called the capacity of the wire harness, the capacity of the wire harness is V, which provides service to N load sources. Any load source that issues a call can occupy a free service device in the wire bundle.

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