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Illustration of "Tripin" 3-pin earthed plug dated 1911. The earthed consumer plug has several claimants to its invention. In Britain, a 1911 book [9] dealing with the electrical products of A. P. Lundberg & Sons of London describes the "Tripin" earthed plug available in 2.5 amp and 5 amp models.
Early GEC 2-pin plug and socket as depicted in the 1893 GEC catalogue. The earliest domestic plug and socket is believed to be that patented by T. T. Smith in 1883. [27] This was shortly followed by patents from W. B. Sayers and G. Hookham; these early designs had rectangular plugs with contact plates on either side.
BS 73:1915 is the original standard for 5 amp 2 pin plugs and sockets, superseded by BS 372. The correct place for old British 2 pin plug information is probably AC power plugs and sockets in a new sub-section under "Obsolete Types", and I propose to start that. Based on the poor quality and inappropriateness of the current paragraph in BS 546 ...
Schuko sockets can accept two-pin unearthed Europlug (CEE 7/16) and CEE 7/17. Less safely, Schuko plugs can be inserted into many two-pin unearthed CEE 7/1 sockets and into some sockets with a different form of earth connection that will not mate with the earth contacts on the Schuko plug (e.g., some variants of the Danish socket).
Companies using these plugs include Vernier, TI and Casio, for interfaces connecting to their graphical calculators, and in the Netherlands CMA. The BS 6312 specification defines the terminal numbering of a socket-outlet in the opposite direction to the pin numbers of the socket. Thus terminal 1 is connected to pin 6, terminal 2 to pin 5 and so on.
Example of a Europlug. The Europlug is a flat, non-rewirable two-pole, round-pin domestic AC power plug, rated for voltages up to 250 V and currents up to 2.5 A. [1] It is a compromise design intended to connect low-power Class II appliances safely to the many different forms of round-pin domestic power socket used across Europe.
GOST 7396 (ГОСТ 7396 in Cyrillic) is a series of Soviet and later Russian standards that adopt International Electrotechnical Commission (IEC) standards IEC 60083:1975 and IEC 60884-2-1:1987 and specify basic dimensions and safety requirements for power plugs and sockets used in Russia and other former Soviet Republics, as well as for export to markets that use American or British plugs.
The GEC facilities in Rugby were split into GEC Alstom and Cegelec Projects, but in 1998 the two companies were reunited under the Alstom banner. An issue relevant to UK employment and insolvency law arose in 2011, when there was a steep increase in the price of copper ; AEI Cables Lid. experienced difficult trading conditions and declared ...