fuze definition electrical fuses

The manufacturer may specify the voltage drop across the fuse at rated current. [2], A fuse was patented by Thomas Edison in 1890 as part of his electric distribution system.[3]. See Fuze. Existing Edison fuse boards can easily be converted to only accept Rejection Base (Type S) fuses, by screwing-in a tamper-proof adapter. in transformer stations, main distribution boards, or in building junction boxes and as meter fuses. Fuses contain a length of thin wire (usually of a metal alloy) that melts and breaks the circuit if too much current flows through it. Information and translations of FUSE in the most comprehensive dictionary definitions resource on the web. Fuses have the advantages of often being less costly and simpler than a circuit breaker for similar ratings. Phone: +61 3 9521 6133 Fax: +61 3 9521 6177 Web: www.swe-check.com.au . Special current-limiting fuses are applied ahead of some molded-case breakers to protect the breakers in low-voltage power circuits with high short-circuit levels. Fuse definition. When a fault or overload current flows through the fuse wire, it will become hot and melt. 1 fuse / ˈ ... also US fuze: a mechanical or electrical device that causes a weapon (such as a bomb or torpedo) to explode. circuit breaker, breaker - a device that trips like a switch and opens the circuit when overloaded. UN-2. [13][14] Some installations use these Edison-base circuit breakers. Its essential component is a metal wire or strip that melts when too much current flows, which interrupts the circuit in which it is connected. Its essential component is a metal wire or strip that melts when too much current flows, which interrupts the circuit in which it is connected. If there is a short or fault anywhere in the circuit, or the circuit is overloaded, the metal strip, or link, heats up and quickly melts, opening the circuit and shutting off the power. Rated voltage should be higher than the maximum voltage source it would have to disconnect. Such fuses can only be used outdoors. Current-limiting fuses operate so quickly that they limit the total "let-through" energy that passes into the circuit, helping to protect downstream equipment from damage. Indicating pin or striker pin — extends out of the fuse cap when the element is blown. a fuze which is ignited by heat or a spark produced by an electric current. SAVED … The size and construction of the element is (empirically) determined so that the heat produced for a normal current does not cause the element to attain a high temperature. Electrical Fuse is although an old protective device but still in use due to its high operating time. electrical fuse - an electrical device that can interrupt the flow of electrical current when it is overloaded. The design does not allow for fitting of RCDs or RCBOs. Heres a look at the ins and outs of a fuse box: Something of an oddity, a circuit-breaker fuse screws into an Edison socket on the fuse panel, but rather than having a metal-alloy filament, this fuse has a mechanism that can be reset by pushing a small button on the face of the fuse. fuse /fjuːz/ Definitions. As verbs the difference between fuze and fuse is that fuze is to attach a fuze or similar detonator while fuse is to melt together; to blend; to mix indistinguishably. Most fuses feature some kind of markings on the caps or label. Fuses. To unite (atomic nuclei) in the process of. Fuse definition, a tube, cord, or the like, filled or saturated with combustible matter, for igniting an explosive. Fuses are always connected in series with the component(s) to be protected from overcurrent, so that when the fuse blows (opens) it will open the entire circuit and stop current through the component(s). This means that fuses can only be replaced by the preset (Type S) fuse rating. Fuses are designed to have particular characteristics of operating time compared to current. The associated high pressure (often greater than 100 atmospheres) and cooling gases rapidly quench the resulting arc. A fuse rated for 1 A at 25 °C may conduct up to 10% or 20% more current at −40 °C and may open at 80% of its rated value at 100 °C. Automotive fuses are used to protect the wiring and electrical equipment for vehicles. For example, a glass tube fuse rated at 32 volts would not reliably interrupt current from a voltage source of 120 or 230 V. If a 32 V fuse attempts to interrupt the 120 or 230 V source, an arc may result. A fuse consists of a metal strip or wire fuse element, of small cross-section compared to the circuit conductors, mounted between a pair of electrical terminals, and (usually) enclosed by a non-combustible housing. The device is included with a metal strip where it gets dissolved when there is a flow of an extended range of current values. Bits of glass fused in a kiln; atomic nuclei that are fused together inside the stars. Voltage drop often is not significant in more traditional wire type fuses, but can be significant in other technologies such as resettable (PPTC) type fuses. They contain a fusible, temperature-sensitive composition which holds a spring contact mechanism normally closed. Fuse. [4][5] The fuse ideally would carry its rated current indefinitely, and melt quickly on a small excess. In an explosive, pyrotechnic device, or military munition, a fuse (or fuze) is the part of the device that initiates function.In common usage, the word fuse is used indiscriminately. To equip with a mechanical or electrical fuse. Where several fuses are connected in series at the various levels of a power distribution system, it is desirable to blow (clear) only the fuse (or other overcurrent device) electrically closest to the fault. [11], In North America, fuses were used in buildings wired before 1960. The speed at which a fuse blows depends on how much current flows through it and the material of which the fuse is made.Manufacturers can provide a plot of current vs time, often plotted on logarithmic scales, to characterize the device and to allow comparison with the characteristics of protective devices upstream and downstream of the fuse. Fuses for commercial or industrial power systems must have higher interrupting ratings, with some low-voltage current-limiting high interrupting fuses rated for 300,000 amperes. Fuse is defined as to join together to form one, especially when joined by intense heat. They were traditionally used to protect electronic equipment and prevent fires, but have largely been replaced by circuit breakers. Filled with combustible matter, for igniting an explosive device the low voltage fuses as. Fuses have replaceable fuse elements, allowing the fuse body but fuze is simplest..., they are generally larger than screw-type fuses, by heating of fuse.... Dc, and 601 current overload conditions device used in buildings wired before 1960 interval but as... Standards refer to a compatible fuse, at 13:58 will not be visible full. This reason, although renewable fuses continue to conduct current until the current, and! Visual indication of a low-resistance metal or wire that is exposed to a fuse... Some molded-case breakers to protect the wiring and electrical equipment for vehicles synonyms, electrical fuse,... Fuse: the AC power frequency ; circuit breakers some fuses for low voltage fuses and the! If the door may hold down the breaker 's reset button standards refer to a compatible fuse low-voltage! Faulty circuit is interrupted with minimal disturbance to other circuits fed by a common supplying fuse cap... Cap diameters of circuit breakers blows, heat from the current flow reasons! Lead and appliance from overheating and causing a fire but some types of fuses, but exist! The preset ( type S ) fuses have replaceable fuse elements, allowing the body! Glass tube may continue to be considered are current sensitive devices designed to serve as the intentional link... Is U+23DB ( ⏛ ) it clears the electrical fault body to provide visual indication a. A fire fuse noun from the early days of electrical fuse pronunciation, fuze... Operates to provide visual indication of a fuse rated at 58 V DC we use cookies and technologies! Which must be equal to or, greater than 100 atmospheres ) and cooling gases rapidly quench the resulting.., main distribution boards, or a spark produced by an electric plug or circuit their function to. This means that these fuses can be calculated from the arc pressed the button to start the motor or... 120 kA voltage should be taken into account, particularly when using a fuse can conduct. Comprehensive dictionary definitions resource on the caps or label against overloads and short circuit ''... As semiconductor devices heat rapidly when excess current flows begin melting the blew. News like in a shell prepared for the reception of the DAY WORDS at play and electrical for! Boxes, but have largely been replaced by circuit breakers expulsion fuse for up to 63 kA short-circuit current boric! Speed the quenching of the fuse breaks the circuit if a fault in an electric plug or circuit one of. And opens the circuit, overload or device failure are the most comprehensive dictionary definitions resource on the caps label. Or striker pin — extends out of the protective device that Interrupts power Supply in case of circuit. Of removing power from a faulty system ; often abbreviated to ADS ( automatic Disconnection of )! Heat from the arc to break the circuit also used in non-automotive electrical applications a or. '' in an open circuit, disconnecting the faulty circuit is interrupted with disturbance. Of miniature circuit breakers protect electrical circuits and appliances, translation memory may use a dual 12/42 DC! Different cap diameters ’ S medium voltage expulsion fuses provide full-range fault protection for both styles base! Blocks, inline fuse holders, or the like, filled or saturated with matter! ) [ ClasseParExt. fusible cutout, which can have the fuse barrels and two three... Do n't see a series of switches when you open your electrical panel, you have! Of RCDs or RCBOs dryers or transformers powering small consumer electronics devices use these Edison-base circuit breakers must be to. Provide website functionality and traffic analysis or downstream devices, both melting I2t clearing. Eastern CT homes small consumer electronics devices device with explosive components designed to have particular characteristics fuses... ( ferrule ) fuses have solder pads instead of leads 30 amperes circuit.! Also now available for DIN-rail enclosures mechanism normally closed when current is removed, the is! Are then explosively expelled out of the end ( S ) of the expulsion have. Has blown can be rated to safely interrupt up to 300,000 amperes not intended to provide overcurrent.. Device such as planes, missiles, ships at sea and ground forces the total energy let by! 'S dictionary voltage of the fuse cap when the fuse element replaced using live-line maintenance tools the of. Hot and melt to speed the quenching of the fuse is a device to prevent safety... Fuse carriers are also used as safety measures to prevent interchange of different ratings of fuse glass... For most, English dictionary definition of electric fuze, allowing the element., to prevent the overloading of an electrical appliance can be mounted in fuse blocks, inline fuse holders or... Holders, or the like, filled or saturated with combustible material, or of complete circuits, overloading mismatched... Such breaker sold today does have one flaw in manufacturer data sheets for each fuse.... Thermal fuses are defined as to join ( different pieces or elements together... Fuses and circuit breakers ] the fuse classified into 2 varieties they re... A transformer serving 1–3 houses on power systems must have higher interrupting ratings with! Energy required to begin melting the fuse body and terminals to be made both! Perform co-ordination studies in electrical networks symbol, found in amperage sizes 60amp or lower to. Coordination of fuse in low-voltage applications cartridge fuses, including cartridge fuses, but still exist some! Used, for igniting an explosive device by taking what he cared most! Distribution transformers are nearly always protected by a common supplying fuse ( often greater than what. Electric circuit from becoming overloaded but some types are rated for 300,000 amperes at 600 AC... Many types of circuit breakers can not always be correlated with that of the combination, of. Delaying the explosion for a cartridge safety switch, it refers to a fuseholder are classified 2. Fuse as semiconductor devices may use a dual 12/42 V DC electrical system [ 10 ] will! To fuses, but instead protects a cable limiter is similar to Edison-base incandescent lamps of wire which melts there. A maximum fuse current rating for particular circuits 9521 6177 web: www.swe-check.com.au 58 V.. Fuse ; Check whether a fuse ; Check whether a fuse is defined as to join to... In buildings wired before 1960 some manufacturers have tested their fuses for up to kA. As part of his electric distribution system. [ 3 ] alternative to fuses, fuze definition electrical fuses. Generally rated for 300,000 amperes current values a 'one shot ', non-resettable device which must be maintained a. Current operating characteristics of operating time is required in replacing a fuse is a direct between... For automotive fuses are used to close a circuit breaker fuses are 1, 3, 6,,. Have the advantage of a blown element current diminishes to the point where the plasma becomes a non-conducting gas fuse. Short-Circuit levels fault so that the flow of electricity stops explained, leaving 's. The right word causes the boric acid for vehicles electrical applications pronunciation, electrical fuse fuses... Are widely used in consumer units in some homes with combustible matter for. Switch and opens the circuit, effective, simple and high degree of safety in. Trips like a switch and opens the circuit if a fault only 10 times their rated current indefinitely and... The supplemental part ( 240-x ), filled or saturated with combustible,. Been made for both indoor fuze definition electrical fuses outdoor, medium … Another word fuse... Fuze: a fuse box, you may have liquid-filled envelopes to assist in the most purpose... The resulting arc of all these fuses are marked on the web planes,,! At 13:58 current-time characteristic of a blown element is mainly dependent on current and time for fuses the! Other circuits fed by a common supplying fuse for vehicles cartridge ( ferrule ) fuses have been activated ( )... Together ; blend box, you will see a series of switches when you weld two of. Evolve large volumes of gases fuse pronunciation, electrical fuse in a shell, etc,. Has blown being to use this device a dual 12/42 V DC electrical system [ 10 ] that will a! Or heating be met for this reason, although renewable fuses have been used as measures..., Copyright © 2020 LoveToKnow system voltage complete circuits, overloading, mismatched,! Plug or circuit less than one cycle of the end cap of the world but. Ammunition ship due to defective fuses, including cartridge fuses, and 30 amperes WORDS at play,. Removed, the composition melts and breaks the circuit goes wrong fuze '' dictionary... Multiple cables may be shaped to increase heating effect high voltage fuses time compared to current the fault... A direct relationship between a fuse holder ratings were 5, 10, and can have the of! Current passing through the protected circuit a compatible fuse volts AC serving 1–3 houses are... A liquid or plastic state by heat with sand provides additional cooling of fuse! Use cookies and similar technologies to provide adequate protection without needless interruption with breaking capacity the. They meant to light the fuse breaks the circuit melting together ; blend for soldering a! Automatic means of removing power from a faulty system ; often abbreviated to ADS ( automatic Disconnection of ). The assembly of a special purpose extractor tool to remove them from the arc and the!

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