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wire - Internationale Fachmesse für Draht, Kabel, Herstellung und Verarbeitung. Axon' design and manufacture innovative cabling, interconnect solutions, cable One year and a half after Axon' Cable in France, the Indian subsidiary Axon' Interconnectors and Wires PVT located in Name, Date Modified, File Info. A wire is a single, usually cylindrical, flexible strand or rod of metal. Wires are used to bear Swaging is of great antiquity, possibly dating to the beginning of the 2nd .. Wire Gauge to Diameter—Diameter to Wire Gauge Converter - Online .
Stranding or covering machines wind material onto wire which passes through quickly. Some of the smallest machines for cotton covering have a large drum, which grips the wire and moves it through toothed gears; the wire passes through the centre of disks mounted above a long bed, and the disks carry each a number of bobbins varying from six to twelve or more in different machines.
A supply of covering material is wound on each bobbin, and the end is led on to the wire, which occupies a central position relatively to the bobbins; the latter being revolved at a suitable speed bodily with their disks, the cotton is consequently served on to the wire, winding in spiral fashion so as to overlap.
If a large number of strands are required the disks are duplicated, so that as many as sixty spools may be carried, the second set of strands being laid over the first.
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For heavier cables that are used for electric light and power as well as submarine cables, the machines are somewhat different in construction.
The wire is still carried through a hollow shaft, but the bobbins or spools of covering material are set with their spindles at right angles to the axis of the wire, and they lie in a circular cage which rotates on rollers below. The various strands coming from the spools at various parts of the circumference of the cage all lead to a disk at the end of the hollow shaft.
This disk has perforations through which each of the strands pass, thence being immediately wrapped on the cable, which slides through a bearing at this point. Toothed gears having certain definite ratios are used to cause the winding drum for the cable and the cage for the spools to rotate at suitable relative speeds which do not vary.
The cages are multiplied for stranding with a large number of tapes or strands, so that a machine may have six bobbins on one cage and twelve on the other. Forms of wire[ edit ] Solid wire[ edit ] Solid wire, also called solid-core or single-strand wire, consists of one piece of metal wire.
Solid wire is useful for wiring breadboards. Solid wire is cheaper to manufacture than stranded wire and is used where there is little need for flexibility in the wire. Solid wire also provides mechanical ruggedness; and, because it has relatively less surface area which is exposed to attack by corrosives, protection against the environment.
Stranded copper wire Stranded wire is composed of a number of small wires bundled or wrapped together to form a larger conductor. Stranded wire is more flexible than solid wire of the same total cross-sectional area. Stranded wire is used when higher resistance to metal fatigue is required. Such situations include connections between circuit boards in multi-printed-circuit-board devices, where the rigidity of solid wire would produce too much stress as a result of movement during assembly or servicing; A.
At high frequencies, current travels near the surface of the wire because of the skin effectresulting in increased power loss in the wire. Stranded wire might seem to reduce this effect, since the total surface area of the strands is greater than the surface area of the equivalent solid wire, but ordinary stranded wire does not reduce the skin effect because all the strands are short-circuited together and behave as a single conductor.
A stranded wire will have higher resistance than a solid wire of the same diameter because the cross-section of the stranded wire is not all copper; there are unavoidable gaps between the strands this is the circle packing problem for circles within a circle.
A stranded wire with the same cross-section of conductor as a solid wire is said to have the same equivalent gauge and is always a larger diameter. However, for many high-frequency applications, proximity effect is more severe than skin effect, and in some limited cases, simple stranded wire can reduce proximity effect. For better performance at high frequencies, litz wirewhich has the individual strands insulated and twisted in special patterns, may be used.
Braided wire[ edit ] A braided wire is composed of a number of small strands of wire braided together. Braided wires do not break easily when flexed. Braided wires are often suitable as an electromagnetic shield in noise-reduction cables. The outer conductor of this miniature coaxial cable RG 58 type is made of braided wire. Heavier braided cables are used for electrical connections that need a degree of flexibility, for example, connections to bus bars.
Number of strands[ edit ] The more individual wire strands in a wire bundle, the more flexible, kink-resistant, break-resistant, and stronger the wire becomes.
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However, more strands increases manufacturing complexity and cost. For geometrical reasonsthe lowest number of strands usually seen is 7: The next level up is 19, which is another layer of 12 strands on top of the 7.
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Electrical power cables may be installed as permanent wiring within buildings, buried in the ground and run overhead or exposed.
Stranded cables can withstand an incredible amount of vibrations and flexing without fatiguing and eventually breaking. But I thought you hated chicken. Why not add a bit of humour, too? Plenum cables withstand flame better than riser cables and need to be used in those applications.
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