satelliteA natural or artificial object that circles another, bound only by gravity. A connection of two or more power systems. Table 3 Properties of Important Semiconductors, Table 7 Derived SI Units with Special Names, Table 8 Dimensionless SI Units with Special Names, Table 12 Electron Arrangement in Atomic Shells of neutral atoms in their lowest energy state, Table 14 Major Discoveries and Inventions in Electricity and Electronics. Dimmer Switch - A switch which incorporates a control for the brightness of a light fitting. Great arguments. One watt is fairly small and household equipment will often be rated in terms of Kilowatt (kW) - 1kW = 1000W. Ampere (A or Amp) - Unit of electrical current. mA (Milliamp) - 1/1000th of an Ampere - see Ampere. For terms related to engineering in general, see Glossary of engineering. Low Voltage (LV) - see Separated Extra Low Voltage (SELV). Beat your last streak, or best your overall time. For example, a thick copper wire offers very little resistance. Other pathways-for examples, an air gap-offer great resistance. Any fault should cause the circuit protection device to operate and isolate the incoming mains. Twin and Earth - Standard power cable with two coloured insulated cores and a bare earth wire for supplying lights, sockets, heaters etc. Care needs to be taken when working on them as they contain live wires even when the light is switched off at the light switch. Overcurrent - A current exceeding the rated value, the circuit/appliance should be protected by a Circuit Breaker or fuse so than any overcurrent in the circuit is short lived. and responds to it in a distinctive manner, a circuit having its parts connected serially, a cell that converts solar energy into electrical energy, energy from the sun that is converted into thermal or electrical energy, a set sequence of steps, part of larger computer program, device for making or breaking the connections in a circuit, a semiconductor device capable of amplification, a unit for measuring the force of an electric current, the rate at which energy is drawn from a source, meter that measures the potential difference between two points, a unit of power equal to 1 joule per second, Created on March 1, 2017 sampling frequencyThe rate at which an analog value is sampled. Single-Phase - This is probably too much information, all you really need to know is that in the UK, domestic electricity supply is normally Single Phase. Both kinds are commonly used in words and diagrams. Double Pole Switch - A switch which breaks (or makes) both the live and neutral lines with one throw of the switch. Only really usable where each circuit connects to just one high power appliance (Shower, Cooker etc). When you connect two or more cells together, the combination is called a battery. The terminals of the cells are connected in such a way that their potential differences add together between the external terminals. Glossary of Electrical terms. Please subscribe or login to access full text content. Cartridge Fuse - A fuse within a ceramic cylindrical body which is pushed into a fuse holder. Mounting Box - A metal or plastic, square or rectangular box secured to a surface and to which the switch, socket or other fitting is secured, normally using screws through the fitting into lugs at each end of the box. An electrical device for measurement of a quantity under observation or for presenting a characteristic of the quantity. Some pathways resist the flow only slightly. Interconnection Tie. Over 5,200 entriesThis popular dictionary, formerly published as the Penguin Dictionary of Electronics, has been extensively revised and updated, providing clear, concise, and jargon-free A-Z entries on key terms, theories, and practices in the areas of electronics and electrical science. Sign up. Interconnection, System. Used in older type consumer units, fused sockets, 13amp fused plugs etc. If the path has no gaps to stop the flow of electrons, the circuit is said to be complete or closed. The only point really of interest here is that UK mains voltage has a peak voltage in the cycle of 340V - which equates to 240V in RMS terminology. Frequency - In alternating current, the rate at which the current changes direction - in the UK typically 50 Hertz. - Privacy and Cookie Policy, Residual Current Breaker with Overload protection (RCBO), our page giving more details about the Part P Regulations. © Copyright 2000 - 2020 Reproduction of any content on this website is strictly forbidden. PRINTED FROM OXFORD REFERENCE ( If the fuse blows, the cartridge is replaced. Design Engineer — A design engineer is a general term that covers multiple engineering disciplines including electrical, mechanical etc. Single Pole Switch - A switch which breaks (or makes) just the live line with one throw of the switch, while leaving the neutral line connected through into the appliance. Two Way Switch - Switches which can be used in pairs so that either can switch a light on or off. A system in which an electrical value (usually voltage or current, but sometimes frequency, phase, etc.) A Dictionary of Electronics and Electrical Engineering is the most up-to-date quick reference dictionary available in its field, and is a practical and wide-ranging resource for all students of electronics and of electrical engineering. See also FCU (Fused Connection Unit). He has written many journal articles as well as a tutorial guide in electronics called Basic Mathematics for Electronics Engineers: Models and Applications (Van Nostrand Reinhold, 1989). However, glossaries like this one are useful for looking up, comparing and reviewing large numbers of terms together. This site aims to provide all the information you need to get started in this in-demand profession. Unfortunately, the direction of the current flow can be confusing. The different applications require different sizes - typically 1.5mm²  for lighting, 2.5mm²  for ring mains, 6mm²  for cookers and showers. Grommet - A small, round rubber/plastic washer with a groove in the outer edge so that it can be located in mounting boxes etc to prevent chafing of cables passing through. These terms have very exact meanings. This high-voltage vocabulary list covers circuits, conductors and insulators, electromagnetism, energy, and much more. This glossary of electrical and electronics engineering is a list of definitions of terms and concepts related specifically to electrical engineering and electronics engineering. Generally more used in commercial building than domestic ones.

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