Ampere (A or Amp) - Unit of electrical current. This path is called a circuit. Copper and aluminum wire are the most common conductors. See also FCU (Fused Connection Unit). 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. Sign up. Normally used in low voltage electronic circuits and computers etc around the house and is usually derived from the alternating mains via a power supply. Once the fuse has blown, it needs to be replaced - unlike Circuit Breakers/MCBs. Frequency - In alternating current, the rate at which the current changes direction - in the UK typically 50 Hertz. Residual Current Device (RCD) - Modern alternatives (better) to Earth Leakage Circuit Breakers and fuses in the Consumer Unit. Generally more used in commercial building than domestic ones. Instrument. The electrons always flow from a negative point to a positive (or less negative) point, because electrons have a … 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. Transformer - An electrical component which changes the voltage of Alternating Current - such as reducing mains voltage to SELV. Electrical Second Fix - Generally used to refer to that part of an electrical installation that is visible on completion - i.e. © Copyright 2000 - 2020 diydata.com Reproduction of any content on this website is strictly forbidden. Three Core and Earth - Power cable with three coloured insulated cores and a bare earth wire used for two way switching and other purposes. Ring Main - A power circuit consisting of a ring formed from the Consumer Unit so that each socket on the loop is connected both ways around the loop back to the Consumer Unit. Cartridge Fuse - A fuse within a ceramic cylindrical body which is pushed into a fuse holder. Spellers of the world, untie! Dimmer Switch - A switch which incorporates a control for the brightness of a light fitting. The storage battery in a car or truck is usually a six-cell battery that produces a potential difference of 12V between the terminals. Don't have an account yet? Types of Switchgears? Circuit Breaker - A switch like device with a pre-set current limit used to protect a circuit from electrical overload. Three phase can supply more electrical power so large machines and industrial equipment will often use the 3 phases. Design Engineer — A design engineer is a general term that covers multiple engineering disciplines including electrical, mechanical etc. One watt is fairly small and household equipment will often be rated in terms of Kilowatt (kW) - 1kW = 1000W. Sallen–Key filterA family of active filters with a second-order characteristic, first described in 1955. sample and holdA circuit that takes a sample of a changing analog value and holds onto it until the value can be processed by some other stage. Ceiling Rose - The ceiling fitting above conventional lights. See our page giving more details about the Part P Regulations. The electrons always flow from a negative point to a positive (or less negative) point, because electrons have a negative charge. (aka bonding). Nice explanation, but picture for shorted circuit is misleading. Loop-in Lighting Circuit - A method of wiring light fittings and switches by running the cable to each light in series. Some people think of a positive current that is in the opposite direction from the electron flow- that is, from positive to negative instead of from negative to positive. PRINTED FROM OXFORD REFERENCE (www.oxfordreference.com). Inside they usually function as a junction box for the wires from the switch. Electrical First Fix - Generally used to refer to that part of an electrical installation that is not visible on completion - i.e. Alternating Current (AC) - The type of mains electricity used in the UK having a cyclical current waveform. See also SFCU (Switched Fused Connection Unit). Metal Mounting Boxes must be earthed. Always use the correct terms, even if other people do not. Only really usable where each circuit connects to just one high power appliance (Shower, Cooker etc). For terms related to engineering in general, see Glossary of engineering. Consumer unit - The electrical switch panel normally located on the consumer side of the meter and which contains the main double pole switch and the fuses, circuit-breakers, or residual current operated trip devices. This high-voltage vocabulary list covers circuits, conductors and insulators, electromagnetism, energy, and much more. Wireman Electrician vs. Outside Lineman – What’s the Difference? Beat your last streak, or best your overall time. The greater the resistance, the less the current for a given potential difference. The arrangement of materials that produces a potential difference between two points by chemical resources is called a cell. These regulations state that to ensure that the required standards are met, most work must either be carried out by a certified electrician or the work must be tested to the satisfaction of the local Building Control Department. See also Spur. This term is the correct name for what is often called “voltage” or “electromotive force.” Potential difference is a measure of how much potential energy an electron has in one place compared to another place. If the fuse blows, the cartridge is replaced. Earthing - The process by which all metal parts in a buildings are electrically connected together and then linked to earth. Electronics, electrical circuits, electromagnetics, power engineering, electrical machines, telecommunication, control systems, signal processing ... Electrical engineering is an engineering discipline concerned with the study, design and application of equipment, devices and systems which use electricity, electronics, and electromagnetism. If you have purchased a print title that contains an access token, please see the token for information about how to register your code. Under the terms of the licence agreement, an individual user may print out a PDF of a single entry from a reference work in OR for personal use (for details see Privacy Policy and Legal Notice). 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 The so-called “positive current” is from positive to negative. Wһɑt’s up to all, thee contents existing aat The field of electronics was born with the invention of the thermionic valve diode vacuum tube in 1904 by John Ambrose Fleming, and was the foundation of all electronics, including radios, television and radar, until the mid-20th century. In addition, other people will think you know less about electricity than you actually do. They have the benefit that if they trip, they can be reset and they offer a more precise tripping value.

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