In building wiring, multiway switching is the interconnection of two or more electrical switches to control an electrical load from more than one location...

(In multiway switching, the correspondence between a single switch's state and whether lights are on or off depends on the state of the other switch[es]...

4-way switch selects from either normal or reversed polarity. Such switches can also be used as intermediate switches in a multiway switching system...

uses in multiway switching. However, an additional "Single TPS" is often used with a "Twin and Earth" TPS or a "Twin TPS" in multiway switching circuits...

methods: never included a safety grounding conductor did not confine switching to the hot conductor (the so-called Carter system prohibited as of 1923...

Multiway branch is the change to a program's control flow based upon a value matching a selected criteria. It is a form of conditional statement. A multiway...

wire cannot be switched off unless the line conductor is also switched off at the same time. Where there is a requirement for switching off the neutral...

relay that has a building's incoming mains power connected through its switching contacts so that the ELCB disconnects the power when earth leakage is...

Plugs and socket-outlets for household and similar purposes – A1: Multiway and intermediate adaptors, cord sets, cord extension sets, travel adaptors...

A similar, usually wall mounted, container used mainly to accommodate switches, sockets and the associated connecting wiring is called a pattress. The...

carbide transistors or integrated gate-commutated thyristors (IGCTs) for switching. A magnetic circuit breaker uses a solenoid (electromagnet) whose pulling...

electrical engineering, a disconnector, disconnect switch or isolator switch is a type of switching device with visible contacts, used to ensure that an...

2-circuit switch, is called a keyless 3-way socket. Multiway switching Pull switch – Switch operated with pull chain found on ceiling fans Rotary switch – DevicePages...

conductors, cables, etc.), and general-purpose equipment (cords, receptacles, switches, heaters, etc.). The next three chapters deal with special occupancies...

function Piling-up lemma, a statistical property for independent inputs Multiway switching, a physical implementation often used to control lighting Related...

connection unit (FCU) is used. In the case of fixed appliances this will be a switched fused connection unit (SFCU) to provide a point of isolation for the appliance...

in one unit two switches that can connect the load to either or both main conductors, and a fusible switch or circuit breaker and switch that feed a distribution...

serious was connecting the primaries of the transformers in series so that switching one lamp on or off would affect other lamps further down the line. Following...

next segment. A plug-in bus duct system or busway can have disconnect switches and other devices mounted on it, for example, to distribute power along...

circuit breaker for each circuit in a common enclosure. Normally, a main switch, and in recent boards, one or more residual-current devices (RCDs) or residual...

detection. Unlike a fuse, a circuit breaker can be reset by flipping a switch. Miniature circuit breaker (MCB) An overcurrent protection circuit breaker...

reduce space required inside the cabinet Easy trouble shooting in case of switch gear failure Pre-tested short circuit rating Mounting of 2, 3, 4 or 5 pole...

one point. North American standards state that the neutral is neither switched nor fused except in very narrowly defined circumstances. The neutral is...

micro switch or relay unit to be fixed to the fuse body. When the fuse element blows, the indicating pin extends to activate the micro switch or relay...

distinguishes between a harmless arc (incidental to normal operation of switches, plugs, and brushed motors), and a potentially dangerous arc (that can...

is an electrical installation of cabling and associated devices such as switches, distribution boards, sockets, and light fittings in a structure. Wiring...

copper-clad cable Multiway switching Steel wire armoured cable Ring main unit Ring circuit Thermoplastic-sheathed cable Switching and protection devices...

wildlife. Early cables carrying telegraph used iron wire armouring, but later switched to steel. The first of these was a cable across the English Channel laid...

copper-clad cable Multiway switching Steel wire armoured cable Ring main unit Ring circuit Thermoplastic-sheathed cable Switching and protection devices...

Wiring systems Section 53: Devices for protection for safety, isolation, switching, control and monitoring Section 54: Earthing arrangements and protective...