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1、Text:the.Preface:earlyin1749years,Americanfranklin,basedoncutting-edgeemitsnovisiontoneutralizethechargeLeiYuncharge,canavoidtheideaoflightning,inventedthelightningrod.Butafterthelightningandthelightninginstallation,noitselfnotonlymorevulnerabletoavoidthunderlightning.Accordingtothisphenomenon,th
2、eSovietunionin1753yearsSuoFureceiveforward"lightningrodiscrookedleadthundersubstationgamesinitself,makeitssurroundingobjectsfromlightning",namelyactuallyleadthunderlightningitselfneedleexplanation.LeiLanagainin1755klingons,publisharticlesconcerningleadthunderlightningitselfhasboththedualroleofcor
3、ona,have,butindifferentconditions,orshowleadthunder,lightningstrikesorpresentationrolerole.Thisisdoneinamoreobjectivelightning,comprehensiveexplanation.Unfortunatelymanypeopletonoticeoflightningrodoffranklin1755roleexplanation.Twohundredyears,directlightningprotectionareainthelightningthoughawide
4、rangeofapplications,butbecauseofthecomplexityoflightningprocess,thelightningrodroleisalsonotidentical,knowthatnowapplicationlightningrodheadshapeaccordingtothevaried,havetheconceptoffranklinin1749,basedonthetipLeiYunchargeanddischarge,avoidlightning,andusebiforkedmanypointedneedle.Morecommoninbui
5、ldingsandstructuresonlightningrod.ThereSuoFu1753yearsaccordingtoreceive,theconceptofLeiYunandtheearthistoturnthelightningleadthunderelectricfield,initself,avoidsurroundingequipmentbestruckbylightning,andusesingleflatmetalpipeorgreat.Inthepowersystemhair,substationlightningrod.Somealsothinkthatlig
6、htningrodheadactualsizelargerorsmallerrelativetotheearthorLeiYunispointedtips,soheadmakeitsmallsphericalalsolightningdoesnotaffectitsleadthunderrole,seemoreatmetalflagpolewithmetalpipetypeballlightningrod.Andallkindsoflightningrodheadwhatdifferentleadthundereffectrarelyresearch.Insomeauthoritativ
7、emagazine,thelightningrodheadshapeoftenshownasshowninfigure1offurcated.ThiscreatesfurcatedlightningrodheadlightningprotectioneffectseemsmoreGoodconcept,andevenappearedrayharmaccident,aalsoblameslightningrodheadwithoutb
