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The first rubber-insulated cables for US building wiring were introduced in 1922 with US patent 1458803, Burley, Harry & Rooney, Henry, "Insulated electric wire", issued 1923-06-12, assigned to Boston Insulated Wire and Cable . These were two or more solid copper electrical wires with rubber insulation, plus woven cotton cloth over each ...
LS Cable & System: 9,168 [5] 16.1 [6] 2021 Prysmian Group: 30,500 [7] 17.1 2022 Furukawa Electric: 4,192 [8] 4.6 [6] Furukawa Co. 44,853 [8] 3.1 [6] Elsewedy Electric: 14,000 1.1 Bambach Wires & Cables: 12,000 1.1
Larger electrical cable that has stranded aluminum wires with an outer sheath used for service entrance feeders from a meter to a panel. In the United States, solid aluminum wires made with AA-8000 series aluminum alloy are allowed for 15 A or 20 A branch circuit wiring according to the National Electrical Code. [9]
In April 2011, Belden expanded its presence in South America with the acquisition of Poliron, a Brazilian cable company for $30 million. [18] In September 2011, Belden acquired SCADA, a security solutions [buzzword] provider, and Byres Security, makers of the Tofino brand industrial security solutions [buzzword], for $7 million. [19]
Wire was drawn in England from the medieval period. The wire was used to make wool cards and pins, manufactured goods whose import was prohibited by Edward IV in 1463. [5] The first wire mill in Great Britain was established at Tintern in about 1568 by the founders of the Company of Mineral and Battery Works, who had a monopoly on this. [6]
Cutaway diagram of a shielded multicore cable with four cores each with three individual conductors. A multicore cable is a type of electrical cable that combines multiple signals or power feeds into a single jacketed cable. [1] The term is normally only used in relation to a cable that has more cores than commonly encountered. [2]
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Electrical equipment for railways was produced during this time, beginning a long history of supplying the German railways with electrical equipment. According to the 1930 Encyclopedia Britannica: "Prior to 1923 it was the largest electrical manufacturing concern in Germany and one of the most important industrial undertakings in the world." [7]
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