AC Power Plugs and Sockets: British and Related Types > 자유게시판

MGN (multi-grounded neutral): a single uninsulated grounded conductor. Appliances are designed not to draw more power than their plug is rated for; the use of such adaptors, and also multi-socketed extension leads, makes it possible for several appliances to be connected through a single outlet, with the potential to cause dangerous overloads. 1. Never use a domestic multi socket extension lead when charging your electric vehicle. Alan Winstanley. "Slimplug Compact UK Power Lead". The method of plugging more than one extension lead into another in order to reach a greater distance increases the risk of an electrical fire as well as electric shock. Can you safely charge a plug-in model with extension cables and would a insurer pay out if you it caused damage to your vehicle? These cables have a core called cladding which is optically rarer than the core. The dedicated versions have specific colours assigned to them, depending on the rotational position of the flattened portion. Correct polarity is established by the position of the earth pin relative to the other two pins, ensuring that the line pin is connected to the correct terminal in the socket-outlet.

Switched and unswitched fused connection units, without sockets, use BS 1362 fuses for connection of permanently wired appliances to a socket-outlet circuit. It was first published in April 2016 to provide a standard for travel adaptors suitable for the connection of a non-BS 1363 plug, or to a non-BS 1363 socket-outlet. It provides for an overall rating of 250 V AC, minimum current rating of 5 A, and a maximum of 13 A. Adaptors with BS 1363 plug pins must incorporate a BS 1362 fuse. BS 1362 specifies sand-filled ceramic-bodied cylindrical fuses, with dimensions of 1 in (25 mm) in length, with two metallic end caps of 1⁄4 in (6.4 mm) diameter and roughly 1⁄5 in (5.1 mm) long. U is the r.m.s value between two phase conductor of a multicore cable. In Europe, this is the standard plug, which is a triple phase design. The standard specifies breaking time versus current characteristics only for 3 A or 13 A fuses. More appropriate lower-capacity fuses are now supplied with some plugs instead. • If the two wires are parallel, then the electromagnetic interference from the devices such as motor can create a noise or interference on the wire that is closer to the source of noise.

Adaptors which allow the use of non-BS 1363 plugs, or more than two BS 1363 plugs, must be fused. BS 8546 travel adaptors may also include USB charging ports. The insulation and clearances may still be designed for 25 kV AC only. For example, choose the hole labeled "12" to strip the insulation from 12-gauge wire. The 2 A, 5 A, and 15 A connectors of BS 546 are duplicated by Group B1 of the GOST 7396 standard. A household plug and socket is defined in SANS 164-1, and is essentially a modernised version of the BS 546 15 A (the essential differences are that pins can be hollowed to reduce the amount of metal used, the dimensions are metricated, and it is rated 16 A). In this case, a metal tape around the son. The method actually adopted is described in the 1972 British Patent GB1292991. An early method of sleeving the pins involving spring-loaded sleeves is described in the 1967 British Patent GB1067870. Prior to the first British Standard for earthed plugs, George H. Scholes of Manchester introduced plugs with a hollow round earth pin between rectangular current-carrying pins in 1926 under the Wylex brand name. There is no provision for establishing the interchangeability with any other device having plug pins incorporated, but which is not covered by BS 1363 (for example a charger or socket cover), unless that device conforms precisely to the plug pin dimensions specified.

An example would be Class II appliances from mainland Europe which are fitted with moulded europlugs. They must accept UK shaver plugs complying with BS 4573 and also Europlugs and American two-pin plugs. BS EN 61558-2-5 includes the following definitions: (3.1.101) Shaver transformer: isolating transformer for fixed installation and with a limited output, designed to supply electric shavers, toothbrushes, and similar appliances rated 50 VA or less used in a bathroom. The CATV power supply receives its operating power from the power company's secondary distribution circuit, at 115 volts, what is electric cable 60 Hz. Pole-mounted electric meter to provide power for the CATV power supply. This space is specified by the National Electrical Safety Code to separate electric supply conductors from communications conductors. The plug is polarised, so that the fuse is in the line side of the supply. BS 1363 plugs and sockets are rated for use at a maximum of 250 V ac and 13 A, with the exception of non-rewirable plugs which have a current rating according to the type of cable connected to them and the fuse fitted. Plug adaptors permit two or more plugs to share one socket-outlet, or allow the use of a plug of different type.