附錄AThewaterheateralreadybecomesessentialdomesticelectricappliancesregardingthemoderncityandcountrysidefamily,accordingtothestatistics,thewaterheater(includingfuelgas,electricity,solarenergyandsoon)hasatpresentachieved71.5%intheChinesecitiesfamilypopularrate,yearsalesvolume12,000,000,aboutsocialinventoryclose150,000,000,afteralreadybecamecontinuesthecolortelevision,therefrigerator,thewasher,airconditioningfiftheverybodyusestheelectricappliance.Butelectricboilerbecauseithasthesecurity,theenvironmentalprotection,thehealth,doesnothavethepollutionandsoonmanymerits,alreadygraduallyreplacedthefuelgaswaterheatertobecomeconsumersnewfavorite,becameinthesmallhouseholdelectricalappliancesprofessiononeofrateofrisequickestelectricalappliancesproducts.Accordingtothepertinentdatademonstrated,althoughthetotalquantitywasstillshortinthefuelgaswaterheater,theelectricboileralreadyhadachievedin2003marketshare39%,havesurpassedthefuelgaswaterheater35%marketshare.Climbsgraduallyalongwiththeelectricboilermarketshare,theelectricboilersecurityproblemmoreandmorearousespeoplesinterest.Accordingtotherelatedinvestigationdemonstrated,consumerwhenpurchaseelectricboilerproductmostcaredaboutthefactorisasecurity.ButdatawhichprovidesaccordingtoNationalQualityExaminationDepartment,thedomesticentirewaterheaterprofessionproductaveragequalifiedratehassurpassed80%,but,thewaterheatersecurityaccidentstillemergedoneafteranotherincessantly.In2003,ChinaConsumerAssociationaltogetheracceptedaboutwaterheatersuit6791,inwhichaboutthesecurityaspectsuitis386.Afterall,sograveastoaffectahumanlife,howcanguaranteetheelectricboilerthesafetyperformanceandtheusesecurity?Theauthortookforalongtimeisengagedinthefactorypersonnelwhotheelectricboilersells,chatsowninthisview.Saysfromthetheory,theelectricboilersecurityornotinvolvestoentireproducteachpart.Weusuallysaythesecuritymainlyisreferstotheelectricboilertoleak,toscaldthehumaninabigwaythesetwothesecurityhiddendangerwhichwiththeconsumerlife,thehealthiscloselylinked.Infact,solongasisthepresentregularfactoryproductionelectricboilerproduct,alldesignedthecorrespondingmultiplesecuritymeasureintheproduct,theconsumerhasnotusedtheworry.Fromelectricboilerproductitself,itssecuritymainlymanifestsinfollowingseveralaspects:First,electricboileringallbladder.Justliketheairconditioningproductitsqualitykeyinthecompressor,regardingtheelectricboilerproduct,inthegallbladderiseachelectricboilerproductmostcorepart.Inthegallbladdermainfunctionisthewaterstorage,andmusthavethebearingpressure,theheatpreservation,noteasytorustaway,nottheeasyscaling,notmaterialqualitiesandthetechnologicalrequirementandsoonwaterleakage.Achievedthesetobeabletoguaranteeconsumersinusewaterusedsafety.Thenbecausebutbecausepossiblenottoexistrustsawayorthescalingcreatestheperforationthewaterleakage,theleakageorinthegallbladdermaterialqualitybearingpressureinsufficientlycreatessecurityhiddendangersandsoonthedetonation.Inordertoavoidappearingsuchsecurityaccident,theelectricboileringallbladdermanufacturesthematerialqualityandtheproductioncraftarewewhenselectsandpurchasestheelectricboilerproductwantthemostimportantinspectionthecontent.Inelectricboilerproductsellswhichinthepresentmarket,thestainlesssteelandtheenamelaretheelectricboilerproductionenterprisemanufacturetheelectricboilertwokindofmostmainingallbladdermaterialquality.Twokindofmaterialqualitieshaveitsfitandunfitqualityrespectively,mainlylookeditincraftwhethermaximumlimitgetsuptheanticorrosion,therustprevention,thecorrosionprevention,guardsagainstleaks,andthepresentelectricboilermanufacturermostlypledged,inthegallbladderguaranteedusablefiveyears,someevenproposedtheguaranteedusableeightyearspledge,appearedinthegallbladderwaterleakageaccidentallyinthefactorypledgedeadline,mayobtainthefactoryfreereplacementnewmachineservice.Second,electricboilerpreheaterpipe.Theelectricboilerproductsecurityisdecidedtoagreatextentbythepreheaterpipequalitywhichuses.Itiswellknown,theelectricboilerisdependsonthepreheaterpipetocomeingallbladderincoldwaterheating,preheaterpipelongtimesoakinginthewater,alsoareinnumerableintheuseatimework,thereforeusesthehighqualitypreheaterpipeisthegoodelectricboilersafeguard.Generallyspeaking,thehighqualitypreheaterpipehasthehighlyeffectivewaterandelectricityseparationtechnology,theinsulationeffecthigh,guardsagainsttheleakageabilitystrongly,thelifelongandsoonthemerits,ifthepresentmajorityelectricboilermanufacturerusesINCOLOY800preheaterpipe.Butnotthegoodpreheaterpipehasthelifeshort,thelong-termusehastheleakagehiddendanger,likesomehomesmallfactoryproductionpreheaterpipeproduct.Third,theelectricboilerwarmcontrols.Warmcontrolsthemainfunctionisguaranteedtheconsumerinusesintheelectricboilertocontrolthehotwaterthetemperature.Goodwarmcontrolsmustthesensitivitybehigh,mustbeabletoguaranteethelowhydraulicpressurestarts,achievedthehypothesistemperatureautomaticpowerfailure,islowerthanthehypothesistemperaturethenelectricboilerinitiativework.Alsomusthavethepressureresistance,thermostablly,adjuststhewarmprecisionhigh(generalrequest1),functionsandsoonleakageprotection.Fourth,electricboilerdecompressionvalve.Thedecompressionvalvemainfunctionisusesforintheelectricboilerthermalprocesstheoverpressuretobeablethesecuritydecompression.Thegeneralfactoryuses0.7Mpathedecompressionvalve,somefactoriesorpost-saleservicepersonnelinordertoreducevisitsmanytimestroublesandsoonservice,replaceswiththe0.9Mpadecompressionvalve,hasthequitebigsecurityhiddendanger.Fifth,electricboilerleakageprotectivedevice.Hereincludingguardsagainstleakstheplug,thecomputersafeexaminationfacilityandsoon.Theseallreducestheimportantguaranteewhichthesecurityaccidentoccurs.Theconsumerwhenselectsandpurchasestheelectricboilerproductcertainlymustreadtheproductcarefullytheinstructionforuseorthefactorypropagandamaterial,selectsandpurchaseshasthemultiplesafekeepingofsecurityelectricboilerproduct.Developsunceasinglyalongwiththeelectricboilerentireprofessionwhole,becauseabovetheproductitselfqualityquestioncreatesthesecurityaccidentalreadymoreandmorewerefew,sawthevariouspressfromtherecentyearsseveralelectrificationwaterheatertobeelectrocutedinhumanssecurityaccident,belongedtotheconsumernottousebecausewhenortheelectricboilerinstalledreasonresultsandsoonexistencehiddendanger.AccordingtoChineseElectricalappliancesAssociationDirectorHuoDuFangintroducedthat,ourcountryelectricboilerstandardusesisEuropesIEC(internationalelectriciancommittee)thestandard.Mayexaminetheelectricboilerwellaccordingtothisstandardthequalityquestion,butitcannotguaranteetheusermayfeelrelievedtakesabath.Becausethewaterheatersecurityandentireuseselectricitytheenvironmentistheclosecorrelation.Offendssomebodytheaccidentcommongroundfromreportseveralis,theaccidentfamilypurchasestheinstallmenttheelectricboilerafterwardstopassthroughthenationalcorrelationdomesticelectricappliancesqualitysurveillancetestcenterexamination,eachtargetconformstothestandardrequirement,manyisthepowersourceearthwhichintheelectricboilerconsumerfamilyprovidesstitchbindinghasnotset,theelectricboilertheinstallationpersonnelnottoproposetheobjectionhascarriedontheinstallment.Suchconsumerindoesnothaveinthesafeearthsituationtotakeabathtocausetheconsumertoreceivetheelectricshockintheusetodie.Thecommonelectricboilermanufacturercaninitsstochasticinstructionforusethenindicatesstrikingly:Theelectricboilermustthesafereliableearth,thegroundingandthezerocurveshouldseparatestr