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The yellow 2P+E 16 A version carrying 115 V is used extensively on the London Underground railway system to power temporary usage of heavy-duty fans; it is also frequently used by tradesmen within the UK, built into a portable transformer box that is powered from a standard 13 A 240 V mains supply, to run heavy-duty power-tools designed to ...
Clipsal was established by Alfred Gerard in Adelaide, Australia in 1920. Clipsal began by selling a range of adjustable sheet metal fittings which joined the various imported conduits of differing diameters found in Australia at the time. These products helped give the company its name, the phrase "clips all" being abridged to Clipsal. Alfred's ...
A small metal, plastic or fiberglass junction box may form part of an electrical conduit or thermoplastic-sheathed cable (TPS) wiring system in a building. If designed for surface mounting, it is used mostly in ceilings, concrete or concealed behind an access panel—particularly in domestic or commercial buildings [2].
A variety of different kinds of IEC 60320 plugs and sockets. IEC 60320 Appliance couplers for household and similar general purposes [1] is a set of standards from the International Electrotechnical Commission (IEC) specifying non-locking connectors for connecting power supply cords to electrical appliances of voltage not exceeding 250 V (a.c.) and rated current not exceeding 16 A. [1 ...
DI boxes which require a power source (batteries or phantom power) are called active DI boxes. A DI unit (direct input or direct inject) is an electronic device typically used in recording studios and in sound reinforcement systems to connect a high output impedance unbalanced output signal to a low-impedance, microphone level, balanced input ...
Stage boxes are sometimes also used to connect speakers to a mixer – either foldbacks or front-of-house speakers. Some sound engineers connect wireless microphone receivers to the stage box and position them in the same rack next to the stage. [10] In recording studios, stage boxes are used to connect the control room and the live room. They ...
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