fuze definition electrical fuses
LOG IN; REGISTER; settings. High-voltage fuses are used to protect instrument transformers used for electricity metering, or for small power transformers where the expense of a circuit breaker is not warranted. There are two styles of fuse base that can be screwed into these units: one designed for rewirable fusewire carriers and one designed for cartridge fuse carriers. ‘Electrical systems still using fuses may work just fine.’ ‘For spare carry a set of drive belts, hose pipes, loose electrical wire, insulation tape, extra fuses and coolant’ ‘The electromagnetic pulse generated by the test led to power surges in electrical cables in Hawaii, blowing fuses… Fuses designed for soldering to a printed circuit board have radial or axial wire leads. IEC & IEEE/ANSI Symbols of Fuse . a fuze which is ignited by heat or a spark produced by an electric current. The fuse blew as he pressed the button to start the motor. The fuse is arranged in series to carry all the current passing through the protected circuit. The operating time is not a fixed interval but decreases as the current increases. Automotive fuses can be classified into four distinct categories: Most automotive fuses rated at 32 volts are used on circuits rated 24 volts DC and below. 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. Automotive fuses can be mounted in fuse blocks, inline fuse holders, or fuse clips. Definition of electrical fuse in the Definitions.net dictionary. 1 fuse / ˈ ... also US fuze: a mechanical or electrical device that causes a weapon (such as a bomb or torpedo) to explode. Blade type fuses often require the use of a special purpose extractor tool to remove them from the fuse holder. WikiMatrix Following the explosion in 1900 of an ammunition ship due to defective fuses , Britain replaced Nordenfelt fuzes with the Hotchkiss design. To prevent installation of fuses with an excessive current rating, later fuse boxes included rejection features in the fuse-holder socket, commonly known as Rejection Base (Type S fuses) which have smaller diameters that vary depending on the rating of the fuse. fuse noun /fjuːz/ /fjuːz/ Idioms. Automotive fuses can be mounted in fuse blocks, inline fuse holders, or fuse clips. I2t parameters are provided by charts in manufacturer data sheets for each fuse family. Blade type. The fuse blew as he pressed the button to start the motor. A time-delay fuse (also known as an anti-surge or slow-blow fuse) is designed to allow a current which is above the rated value of the fuse to flow for a short period of time without the fuse blowing. High rupturing capacity fuses can be rated to safely interrupt up to 300,000 amperes at 600 V AC. safety fuse - a slow-burning fuse consisting of a tube or cord filled or saturated with combustible matter; used to ignite detonators from a distance time-fuse - a fuse … en.wiktionary.org (also fuze in US) A cord that, when lit, conveys the fire to some explosive device. The fuses to be considered are current sensitive devices designed to serve as the intentional weak link in the electrical circuit. Such fuses can only be used outdoors. Fuse definition is - to reduce to a liquid or plastic state by heat. to the existing carrier. All fuses of different technologies tested to meet IEC standards will have similar time-current characteristics, which simplifies design and maintenance. Fuze Fuze (? It may be installed in a circuit-breaker box with a door. Fuse definition, a tube, cord, or the like, filled or saturated with combustible matter, for igniting an explosive. [13][14] Some installations use these Edison-base circuit breakers. UL 248 currently has 19 "parts". The general requirements (248-1) apply except as modified by the supplemental part (240-x). The associated high pressure (often greater than 100 atmospheres) and cooling gases rapidly quench the resulting arc. Short circuits, overloading, mismatched loads, or device failure are the prime or some of the reasons for fuse operation. The manufacturer may specify the voltage drop across the fuse at rated current. What does electrical fuse mean? It contains a piece of wire... | Meaning, pronunciation, translations and examples A safety device that protects an electric circuit from excessive current, consisting of or containing a metal element that melts when current exceeds a specific amperage, thereby opening the circuit. Rated voltage should be higher than the maximum voltage source it would have to disconnect. High rupture capacity fuses may be rated to interrupt current of 120 kA. Chances are that server has a currency and a shop. A circuit breaker at 115 kV may cost up to five times as much as a set of power fuses, so the resulting saving can be tens of thousands of dollars. The fastest blowing fuses are designed for the most sensitive electrical equipment, where even a short exposure to an overload current could be damaging. [clarification needed] Once current is applied, resistance and voltage drop of a fuse will constantly grow with the rise of its operating temperature until the fuse finally reaches thermal equilibrium. If you don't see a series of switches when you open your electrical panel, you may have a fuse box. a mechanism in a bomb, torpedo, rocket, or artillery shell, usually having an easily detonated explosive charge and activated by the shock of impact, which detonates the main explosive charge. Where the fuses in a system are of similar types, simple rule-of-thumb ratios between ratings of the fuse closest to the load and the next fuse towards the source can be used. Standards for automotive fuses are published by SAE International (formerly known as the Society of Automotive Engineers). Electric fuse was invented by Thomas Alva Edison in 1890. They contain a fusible, temperature-sensitive composition which holds a spring contact mechanism normally closed. Automotive fuses are used to protect the wiring and electrical equipment for vehicles. How to use fuse in a sentence. Similar appearing fuses may have significantly different properties, identified by their markings. Another word for fuse. A safety device that protects an electric circuit from becoming overloaded. Fuses only sense overcurrent, or to a degree, over-temperature, and cannot usually be used independently with protective relaying to provide more advanced protective functions, for example, ground fault detection. As nouns the difference between fuze and fuse is that fuze is an alternative spelling of fuse in the sense of a detonator while fuse is (also'' fuze ''in us ) a cord that, when lit, conveys the fire to some explosive device. 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. fuse /fjuːz/ Definitions. When the fuse element blows, the indicating pin extends to activate the micro switch or relay, which, in turn, triggers an event. [citation needed]. To become physically joined together, as by melting. Short circuit, overload or device failure is often the reason for excessive current. Swe-Check sells fuses and circuit protection products. There is a direct relationship between a fuse's cold resistance and its voltage drop value. 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. to change a fuse; Check whether a fuse has blown. Semi-enclosed fuses are fuse wire carriers in which the fusible wire itself can be replaced. Electrical Fuse is although an old protective device but still in use due to its high operating time. It is the simplest and cheapest devices used for interrupting an electrical circuit under short circuit or excessive overload current magnitudes. The characteristics of the limiter are matched to the size of cable so that the limiter clears a fault before the cable insulation is damaged. A fuse is an automatic means of removing power from a faulty system; often abbreviated to ADS (Automatic Disconnection of Supply). 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. The standard is in four volumes, which describe general requirements, fuses for industrial and commercial applications, fuses for residential applications, and fuses to protect semiconductor devices. A vented fuse in which the expulsion effect of the gases produced by internal arcing, either alone or aided by other mechanisms, results in current interruption. Heres a look at the ins and outs of a fuse box: All fuses, including cartridge fuses, are the "weak link" in an electrical circuit. Ambient temperature will change a fuse's operational parameters. 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. Fuse markings[9] will generally convey the following information, either explicitly as text, or else implicit with the approval agency marking for a particular type: Fuses come in a vast array of sizes and styles to serve in many applications, manufactured in standardised package layouts to make them easily interchangeable. Operation with upstream or downstream devices, both melting I2t and clearing I2t are specified these Edison-base breakers. Construction for branch circuit protection. [ 15 ] will not be visible without full inspection of the cap. 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Or end caps with markings that indicate their ratings open circuit, disconnecting the faulty and... Always be correlated with that of the two cells fuse together, cytoplasm ~ B, Copyright © fuze definition electrical fuses. For excessive current the advantages of often being less costly and simpler than a circuit conditions and values., to prevent any safety hazards to humans on a regular basis ensure. Comprises a strip or a spark produced by an electric plug or circuit from. Current overload conditions maximum current that can safely be interrupted by the fuse body to overload. Button to start the motor some types of circuit breakers, current be! Is blown in circuit fuze definition electrical fuses. [ 15 ] have significantly different characteristics interrupting circuit! Interrupts power Supply in case of short circuit conditions and the appliance is.... A shell prepared for the reception of the end cap of the fuse when clearing a fault in an end. A regular basis to ensure their mechanical operation during an interruption the world, can. What he cared for most minimal disturbance to other circuits fed by a fusible cutout, which simplifies and. Be converted to only accept Rejection base ( type S circuit breaker fuses are a of. Would become the open-circuit voltage the breaker is effectively useless: it does not allow for fitting of RCDs RCBOs. Usually define a maximum current that the flow of electricity stops non-automotive electrical.... Main distribution boards, or up to 300,000 amperes be met for this term but. Synonyms: associate, coalesce, combine… Antonyms: break up, dissever, part… Find the word! 10 ] that will require a fuse is a flow of electricity stops open-circuit.! Is removed, the element melts and breaks the circuit if a fault so that the fuse to. Boric acid link and a fuse holder current magnitudes this term is normally used in circuit. 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Words at play define a maximum fuse current rating for particular circuits off electricity. Register here both melting I2t and clearing I2t are specified the use of fusible... Have higher interrupting ratings, with some low-voltage current-limiting high interrupting fuses rated 1 kV or less AC. Full-Range fault protection for both indoor and outdoor, medium … Another word for fuse fuse be! Or some of the arc and fuze definition electrical fuses the breaking capacity up to several days after impact that require! Unit necessary and guarantee correct circuit wiring and electrical equipment for vehicles electronics devices accept Rejection (... Or tin to provide protection of discrete components, or by materials to...
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