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Spur circuits attached to the ring can overheat if not fused at the spur-point (i.e., if a BS 5733 or similar fused spur is not used) This is almost certainly a breach of the appropriate electrical standards (e.g. BS 7671 in the UK): the maximum load on any unfused spur is a single fitting.
Wi-Fi microcontrollers enable Wi-Fi connectivity for devices so that they can send & receive data and accept commands. As such, Wi-Fi microcontrollers can be used for bringing otherwise ordinary devices into the realm of the Internet of things .
Usually user can control the light using mobile app. But for some products, extra corresponding hub is needed to connect those smart switches. In order to avoid the hub, wireless light switch and luminaire needs to share the same protocol, e.g. Bluetooth mesh Lighting model or Zigbee LightLink.
A branch off of a final circuit supplying a single accessory, especially from a ring final circuit. Fused spur A spur branched off of a final circuit via a connection protected by a suitable fuse, and thus one that may connect to more than one accessory. A de-energized circuit A circuit that is isolated from power and not at a potential ...
In practice most BS 546 plugs are unfused with fused versions being unusual and expensive. The 15 ampere (A) sockets were generally given a dedicated 15 A circuit. Multiple 5 A sockets might be on a 15 A circuit, or each on a dedicated 5 A circuit. Lighting circuits fused at 5 A were generally used to feed the 2 A sockets.
A residual-current device (RCD), residual-current circuit breaker (RCCB) or ground fault circuit interrupter (GFCI) [a] is an electrical safety device, more specifically a form of Earth-leakage circuit breaker, that interrupts an electrical circuit when the current passing through line and neutral conductors of a circuit is not equal (the term residual relating to the imbalance), therefore ...
In the IEEE 802.11 wireless LAN protocols (such as Wi-Fi), a MAC frame is constructed of common fields (which are present in all types of frames) and specific fields (present in certain cases, depending on the type and subtype specified in the first octet of the frame).
Digital model railway control systems are an alternative to control a layout and simplify the wiring and add more flexibility in operations. A number of control systems are available to operate locomotives on model railways. Analog systems where the speed and the direction of a train is controlled by adjusting the voltage on the track are still ...
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