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首页 零线火线地线(Ground wire)

零线火线地线(Ground wire).doc

零线火线地线(Ground wire)

周万虹
2018-09-20 0人阅读 举报 0 0 0 暂无简介

简介:本文档为《零线火线地线(Ground wire)doc》,可适用于社会民生领域

零线火线地线(Groundwire)零线火线地线(Groundwire)Aboutthedifferencebetweenthelineoffireandthezeroline,thereisnoneedtomakeatheoreticalinquiryinthejuniormiddleschool,butonlythefollowingaspectscanbeclearlyunderstood:,ordinaryhouseholdlightingcircuit,FireWireandearthexistbetweentheVvoltage,zerolinewiththeearththereisnovoltage(orvoltageis),sothereisalsobetweenthelineandzerolineVvoltage,withatestpencilcanidentifythefiringlineandthezerolineTheneonlightisfire,otherwiseitiszeroline()twosocketshomewall,ajackisconnectedwithanotherconnectingwire,Jackisthezeroline,youcanusethetesttofindoutwhichisconnectedwithFireWirejack()accesslamp(orhomeappliancesother)wires,oneisaFireWire,zeroline,youcanalsousethetesttodistinguisheveninthetwoterminalsonthewireholder,buttoCaution()inthetwoendsoftheswitchisdisconnectedinaline(thetwoendsofthelampswitch,forexampleinthe)arerespectivelyconnectedtothetwoterminalswitch,switchisclosed(tabletwo,light)terminalswitchtestpencilnibcontacttimeneonglowNeverputazerolineandalivewireonthetwoterminalsoftheswitch,soastoavoidshortcircuitorevenfireaccident,thebodydirectlyorindirectlyconnectedwiththeFireWire,therewillbeanelectricshockaccident()anelectricshockaccidentoccursdirectlyonthegroundcontactwithafireline(oraconductorconnectedwithalivewire)()standingontheinsulatedstool,onehandwall,theotherhandcontactwiththewirewillcauseelectricshockaccident()standingontheinsulatedstool,onehandconnectingwire,andtheotherhandtouchingthezerolinewillcauseelectricshockaccidentInshort,aslongaspartofthehumanbodydirectlyorindirectlycontacttheFireWire,andtheotherpart,whethertouchingthegroundortouchingthezeroline,willhaveanelectricshockaccident,thefollowingcircumstanceswillnotoccurelectricshockaccident,butitisbestnottotry,soasnottomisjudgetheFireWireandzerolineaccident()standingdirectlyonthegroundandtouchingthezeroline()standingontheinsulatedstool,onlytouchingthelivewireThefiringlineonthepowerinputsideofthemeterisswitchedtothezerolineIwouldliketoask,thehouseholdelectricityinputsidesinglephasewatthourmeterFireWire(thatis,fromtheleftisNointerface)switchingzerolineintotheport,thelineintotheoriginalzerolineport(exit)forlineintoelectricalpowerThesideofthesamewhatdoesthemetertoanalyzethisproblemfromthemeterprinciple,pleaseexplainindetail,thankyou!WatthourmeterTheinteriorhasavoltagecoil,andacoil,andcorewireandinterfaceintroducedinthetabletoformacoilwindingInNobytheoutput,andtheintroductionoflineandinterfaceinterfacedirectlyconnectedtotheoutputtotakealineonitsconnectionpointintothetable,asmallplateandterminalside{itisconnectedtotheterminaloftheUSboardonthebaseofintroducingvoltagelineformavoltagecoil,twocoiltodrivetherotationoftheturntabletable,ifyoulikethatdo,causethephaseofthecurrentnocurrentthroughthecoilOnlythezerolinecurrentloopcurrentthroughthecoil,soifyouwhennormalusewillnotaffectthedegreeofelectrifiedmeter,butifyouputbetweenfireandmetalpipelineelectricequipment,{theheatingpipe,tapwaterpipethatistakingazerolinecurrentcoilinthepipelineistheloadcurrent}maydonotleaveorlessflowmeter,andflowsthroughthelandsothatthemeterorlessregardlessofmeasurement,whenthecurrentflowingthroughthemeteraboutpercentoftheratedcurrent,theerroristenpercentmeterinversionwillproducenegativebutitwillincreasetheunsafefactors,easytocausethepersontheelectricshockaccident,doyouunderstandNo,formeisnotimportant,butyoucan'tdothisinstealing,moreimportantisnotsafe!!Householdelectricmeterusingacurrentcoil(connectedtothelinebetween)andavoltagecoil(connectedtothezerolinebetweenthefire)weregeneratedtocalculatethevoltageandcurrentsignalsbyactivepowermeter,andthepowervaluewasobtainedbyaddingpower(mechanicaltablegeneratedbyeddycurrentandvoltageofthedrivecoilamechanicalrotarypowermetering)Changethezeroline,thevoltagesignalofoppositephase,butthecurrentsignaldirectionisreversed,negativepositive,measurementpowerisstillpositiveSayunsafe,referstotheexchangeofzeroFireWire,sothatthehomecircuitzeroFireWirehasbeenreplaced,iftheelectricalwiringisnotstandard,therewillbesomehiddendangersIntheoryorinpractice,itispossibleJustgeneralelectricappliancescontrolthefireline,ortheswitchisinstalledonthefirelineOnlysinglephaseelectricityisokThreephasesareoutofthequestionFireline,zerolineandgroundwireThefirstuseofelectricityandhouseholdelectricpowerforelectricityPowerisoftensaidthatthevoltsofelectricity,usedforthefactoryThisisathreephasefourwirelineinfourThreeFireWire,azerolineThreeFireWireafterloadsuchaselectricmotorsandotherelectricalequipmentafterthezerolinetoformaloop,theequipmentcanworknormallyThezerolineinpowerplantisgroundedHouseholdelectricmeansweoftensayvoltsofelectricityisalsocalledsinglephaseelectric,twowires,alivewire,azerolineAfterfireloadssuchaslightbulbsandotherelectricappliancesafterthezerolinetoformaloop,theuseofelectricalappliancestoworkproperlyThezerolinehereinthepowerplantisgroundedElectricpowerandhouseholdelectriczerolineisgroundedinapowerplant,butweusuallysaythegroundwireandthezerolineisnotaconceptYoulookatthethreeholepowersocketinourhouse,ifitisaformalconstruction,whereaholeisaholeline,Shilingline,aholeisherethegroundwireThewholebuildingaftergatheringgroundThisisonlythegroundoftensaidMosthouseholdappliancesarerequiredtoground,andthegroundwireistoconnecttogetherWhyelectricshockSomepeoplemistakenlythinkthatthezerolineisthegroundingwire,householdappliancesandthezerolineisconnectedtogether,soatthefrontandthezerolinetoformaloopatthesametimeanddomesticappliancestoformaloop,theliveshell,especiallyinthezerolinehasbeendisconnectedbecauseofthefaultandpowersocketgroundingandbadsituationmoreeasytogetashock,zeroline:inthehomepower,thezerolineusuallyreferstothelinefromthetransformergroundingbody,itsconnectionresistancehasstrictregulations,mustbelessthanorequaltoohms,soastoensurethenormaluseofpowerequipment,FireWire:isrelativetothezeroline,usuallythehomepowerisonlyonephaseofthreephaseelectricity,itslinevoltageisvolts,itisthroughthezerolineconstitutecircuit,makehouseholdapplianceswork,wegiveground:householdappliancesconnectedwireisusuallyinordertosecureandeliminatestaticelectricityandthengroundit,thegroundingresistanceisnotastrictrequirement,isusuallyrelativelylarge,nocurrentpasseszerovoltagetotheground,putitaszerolineapplianceisunabletolettheequipmenttoworknormallythe,istousethemetalshell:lineofelectricalequipmentandpowersupply(generatorandtransformer)ofthegroundingmetalconnectingtheline,itrequiresthepowersupplytotheelectricequipmentinthecircuitoffuseorbreakerinelectricequipment,acollisionshell,canintheshortesttimeopencircuit,soastoprotecttheequipmentandpersonalsafety,thehomeisnotthethreephasesocketsocketbutthreewiresocket,itisinthemiddleoftheground,bothsidesisusedtopickupthezerolineandFireWire,althoughthereareprovisionsoftheelectricianmanualleftzerorightfire,butweinreallifeisnotsostrictTwowiresinthelightingcircuit,onecalledtheFireWire,theothercalledthezerolineThedifferencebetweenFireWireandzerolinesisthattheyvaryinvoltagetoground:thelinetogroundvoltageisV,andthezerotogroundvoltageisThegroundwireisthegroundlineThereisnomidlineintheelectricianThehomeisgenerallynotthreephasesocketsocket,themiddlegroundisonbothsidesofthefiringlineandthezerolineThehomeisgenerallynotthreephasesocketsocket,middleground,onbothsidesofthefiringlineandthezeroline,therightline(L),leftforthezeroline(N)ThedifferencebetweenFireWireandzerolinesisthattheyvaryinvoltagetoground:thelinetogroundvoltageisV,andthezerotogroundvoltageisThecenterlineisthelinedrawnfromtheneutralpointofthegeneratororthepowertransformerIfitisnotgrounded,itiscalledthemiddlelineIfitisproperlygrounded(thegroundiszeropotential),thecenterlineiscalledzerolineAlthoughthezerolinesandgroundwiresofcivilelectricpoweraredrawnfromthesamepoint,theirrespectivefunctionsareseparatedandcannotbemixedForexample,thezerolineandthelivewirearethecircuitsoftheelectriccircuitTheyarethesameastheoutershelloftheelectricapplianceThecurrentflowinginthewireisthesamesize,sothewirediameteristhesamethicknessAndthegroundwireisconnectedwiththeoutercasingoftheelectricapplianceWhentheelectricapplianceisoutoforder,theelectriccurrentiscirculatedinit,andthereisnocurrentingeneralTherefore,thewirediameterismuchthinnerThezerolineandthelivewirearetheelectriccircuit,thereforemustnotconnectthezerolinetotheshell,thatcancausetheelectricshockEarthwire,zerolineandfireline:theearthisagoodconductor,andthegroundwireisshortedtothegroundthroughaburiedelectrodeThepowertransmissionisinathreeway,andthereisaneutrallinecurrent,threephaseequilibriumofneutrallineiszero,commonlyknownas"zeroline",anotherfeatureofthezerolineandthegroundisinthetotaldistributioninputshorted,thevoltagedifferenceisclosetozeroThethreephasethreewireandthezerolinehavevoltage,canproducetheelectricshocktothehuman,commonlycalled"thefireline""TheinstallationandarrangementofelectricallineshavestrictstandardsInpractice,theassemblyofgroundwire,zerowireandfirewireaccordingtostandardisessentialtosafetyFireline,groundwire,zerolineEnglishwordsAboveisthegroundlineEarth,Wire,"E""ThefollowingtwoterminalsarezerolineNaughtWire,"N""FirelineLivewire,"L""AlternatingcurrentisnotaspecialrequirementFireiszeroInternationalstandard:Redisthelineoffire,blackiszero,andthecoloristhegroundwireAllbigmanufacturersandstandardizedproductsfollowthisprincipleAlthoughthelineoffireandzerolinecanbeinterchanged,itisnotrecommendedOneoftheairconditionertousewiresoftheline(ifitistrue)shouldbetwoairconditioningalsocanmove,squarelinescanbringairconditioningProvideapandawireairconditioningwiringandswitchsocketwiring,singlecoresquarewireusedformorethanairconditioners,singlecorewireforatotalofsquareline,doublecolorlineforgroundingwireThreecoresheathlinesquare,canbeusedincabinetairconditioningThepictureshowsthelineofthedecorationteamHisconstructionmethodis:Linesquaremeters,groundandzerolinewithsquaremetersAccordingtotherelevantstandardsoftheindustry,airconditioningphasezerolinemustusesquaremetersThepictureshowsthewronglineforthedecorationteam:Redsquaremeters,blackandgreenwithsquaremeters,andgroundwireshouldusedoublecolorlineGenerallycalledsquareorsquareSpecifically,squarecentimetersorsquarecentimetersUsuallysquaresandcurrents(currentstrengthamperes)ListentotheoldelectricianMastersaid,before(lastcentury~years)thestandardispersquarestream,andlaterdidnotknowistheprogressofscienceandtechnology,ortheproductionoffakeandshoddymore,changedtopersquarestreamVvoltagemeter,kilowatthourisperpieceflow,(PH)KWorHPcangosquarelinetheory,ifthesittingroomofaHP,thebedroomisorHP,atthesametimeanyairconditionersisnoproblemNowtheproblemis,cannotknowwhethertheconstructionofthewireisnotqualifiedmanufacturersofqualifiedproducts,whetherthejunctionisrequired,ifthewirecontainingimpuritiesormorethanthevirtualconnection,thensquaresureisnotgoodThereisaproblem,donotknowhowmuchisthehomeairconditioningbusorsquare,ifistoomeanenough,thenhowtochangetheindoorlineisdeceivingCopperandaluminumwireloadflowisnotthesameasthesquareissquarecopperaluminumAccordingtotheconservativeAlineiscalculatedpersquareAifyouwanttochangesquareTheairswitchdoesnotchangenochangeIftheloadisgreaterthantheratedcurrentoftheairswitchYouwillovercurrentprotectionactionBecausebeforechangingtheline,IsawareminderaboutthisaspectSo,whentheelectricity,especiallytoremindthemasterofconstruction,butthemastersaidthatthedeveloper'shomelineis,andtheirownintouseless!!!s:s:s:quoteRestassuredthenationalresidentialdesignstandardshavebeenspecifiedintothefamilylineshouldnotbelessthansquare,sosquarelineintothefamilysituationisnotpossible,andiftheairconditioningcircuitbreakerratedcurrentisA,asquarelinecanonlybeawaste,withoutmeaning,airconditioningcapacityistoolargedonotburn,alsosuchaslinebreakerwilltrip,inadditiontocorrectwireunitismmCouldyoutellmehowmanywiresareclassifiedbylinediameter!,,,,,,,,,,,,,,,,,,,,andmmAirswitch,alsoknownasautomaticswitch,lowvoltagecircuitbreakerTheprincipleis:whentheworkcurrentexceedstheratedcurrent,shortcircuit,lossofpressureandsoonIncaseofautomaticcutoffcircuitAtpresent,thecommonhouseholdswitchswitchwithporcelainpluginsurance(havebeeneliminated)orairswitch(miniaturecircuitbreakerwithleakageprotection)ThehomeuseairswitchDZseries,commonfollowingmodelsspecifications:C,C,C,C,C,C,C,Candotherspecifications,whichCsaidtrippingcurrentoffcurrent,suchasCsaidtakeoffcurrentofA,thegeneralinstallationofWwaterheaterwithCinstallationW,WtoCairheaterSelectionkeyofminiaturecircuitbreakerandleakageswitchHouseholdpowershallberoutedseparatelyfromlightingcircuit,powersupplycircuitandairconditioningcircuitThus,whenoneofthecircuitsfails,theothercircuitscanstillbepowerednormally,andthenormallifecannotbeinfluencedexcessivelySocketcircuitmustbeinstalledleakageswitch,topreventleakageofhouseholdelectricalappliancescausedbypersonalhitaccident,thegeneralfamilyshouldsetthefollowingcircuitbreaker,asfaraspossibletoavoidaloopontheexcessiveuseofelectricalequipmentandsocketsAkitchenandbathroomlightingcircuitBbedroomandlivingroomlightingcircuitClivingroomairconditioningcircuitDThebedroomairconditioningloop(anairconditioner,aloop)Elivingroom,bedroomsocketcircuitFkitchenandtoiletsocketcircuit,thegeneralchoiceofsocketloopleakageprotectorAmA,lightingcircuitgenerallychooseAAminiaturecircuitbreaker,airconditioningcircuitgenerallychooseAAminiaturecircuitbreaker,householddistributionboxswitchselectionAAminicircuitbreaker,isolatingswitchtypesofcircuitbreakerscanusebipolarorPN(lineneutral)circuitbreakerwhenthelineshortcircuitorleakagefault,thecircuitbreakercanbeimmediatelycutoffthepowerphase(fire)lineandneutralline(zero),toensurethesafetyandsecurityofelectricalequipment,wallhangingairconditioningpowersupplycircuitcannotbeequippedwithleakageswitch

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