Overheating (electricity) | Overheating

Overheating is a phenomenon of rising temperatures in an electrical circuit. Overheating causes damage to the circuit components and can cause fire, explosion ...Overheating(electricity)FromWikipedia,thefreeencyclopediaJumptonavigationJumptosearchThisarticleincludesalistofreferences,relatedreadingorexternallinks,butitssourcesremainunclearbecauseitlacksinlinecitations.Pleasehelptoimprovethisarticlebyintroducingmoreprecisecitations.(July2020)(Learnhowandwhentoremovethistemplatemessage)Overheatingisaphenomenonofrisingtemperaturesinanelectricalcircuit.Overheatingcausesdamagetothecircuitcomponentsandcancausefire,explosion,andinjury.Damagecausedbyoverheatingisusuallyirreversible;theonlywaytorepairitistoreplacesomecomponents.Contents1Causes2Preventivemeasures2.1Useofcircuitbreakerorfuse2.2Useofheat-dissipatingsystems2.3Controlwithincircuit-design2.4Propermanufacture3Gallery4Seealso5ReferencesCauses[edit]Whenoverheating,thetemperatureofthepartrisesabovetheoperatingtemperature.Overheatingcantakeplace:ifheatisproducedinmorethanexpectedamount(suchasincasesofshort-circuits,orapplyingmorevoltagethanrated),orifheatdissipationispoor,sothatnormallyproducedwasteheatdoesnotdrainawayproperly.Overheatingmaybecausedfromanyaccidentalfaultofthecircuit(suchasshort-circuitorspark-gap),ormaybecausedfromawrongdesignormanufacture(suchasthelackofaproperheatdissipationsystem).Duetoaccumulationofheat,thesystemreachesanequilibriumofheataccumulationvs.dissipationatamuchhighertemperaturethanexpected.Preventivemeasures[edit]Mainarticle:Thermalmanagement(electronics)Useofcircuitbreakerorfuse[edit]FailedICinalaptop.Wronginputvoltagehascausedmassiveoverheatingofthechipandmeltedtheplasticcasing.Circuit-breakerscanbeplacedatportionsofacircuitinseriestothepathofcurrentitwillaffect.Ifmorecurrentthanexpectedgoesthroughthecircuit-breaker,thecircuitbreaker"opens"thecircuitandstopsallcurrent.AfuseisacommontypeofcircuitbreakerthatinvolvesdirecteffectofJoule-overheating.Afuseisalwaysplacedinserieswiththepathofcur


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