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Electric fuse
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2018-10-27
ElectricfuseTheprincipleofelectricfuseThepowerfuseworksbysimpleI2Rwithtime.Thegreaterthecurrent,theshortertheswitchingtime.Thepowerconsumptionofthefuseisdirectlyproportionaltothesquareofthecurrentpass
Current fuse parameters
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1.RatedcurrentThenominalworkingcurrentofthefuse,alsoknownasIn,isdeterminedbythemanufacturingdepartmentunderlaboratoryconditions.Ratedcurrentvaluesusuallyinclude100mA,200mA,315mA,400mA,500mA,630mA,800m
What role does the fuse play in the circuit?
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Whenthecircuitbreaksdownorisabnormal,thecurrentincreasescontinuously,andtheincreasedcurrentmaydamagesomeimportantpartsorexpensivepartsinthecircuit,mayalsoburnthecircuitandevencausefire.Afuseisaninsura
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