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1、Lightning&SurgeProtection雷電及過(guò)電壓保護(hù)講座蔡振新（高工） 電話：13901990787121997年對(duì)超過(guò)8722多件案例損壞原因的分析過(guò)電壓31,68%(雷擊及操作過(guò)電壓)盜竊7,01%火災(zāi)4,88%水災(zāi)6,22%不小心/誤操作22,67%其它26,76%風(fēng)暴0,78%3中國(guó)各主要城市雷暴天數(shù)地名平均全年日期最早初日(日/月)最晚終日(日/月)?？?04.31/130/12上海32.214/210/10重慶40.114/21/12拉薩75.49/33/11武漢26.711/120/12北京36.730/33/11呼和浩特29.5
2、20/324/10哈爾濱28.920/410/104建筑物被燒毀5電路板及元器件損壞6配電柜被損壞7雷暴引起感應(yīng)雷擊及過(guò)電壓直擊雷或鄰近雷擊:擊在外部防雷系統(tǒng)，如保護(hù)框架（工業(yè)裝置上.）電纜上等。浪涌電流在接地電阻Rst上引起電壓降。閉合環(huán)路感應(yīng)產(chǎn)生過(guò)電壓信息系統(tǒng)電源系統(tǒng)L1L2L3PEN20kVRst2c1a1b12a2b11a1b遠(yuǎn)處雷擊:擊在遠(yuǎn)處架空輸送線纜上雷云之間的放電通過(guò)架空線纜引起感應(yīng)雷電波及過(guò)電壓。在野外,雷電擊中通信線纜2a2b2c8鄰近建筑物之間危險(xiǎn)的浪涌雷擊幾100kA幾10kV幾100kV幾kA幾10kA幾10kV通信線纜OV230V
3、~幾10kA幾kAWater/Gas幾kA幾?幾kA幾?幾kA幾?230V9StandardIEC61024ProtectionofstructuresagainstlightningStandardIEC61312ProtectionagainstLEMPStandardIEC61643Lightningprotection-TelecommunicationlinesTechnicalReportIEC61662AssessmentofriskofdamageduetolightningPublished:1995-04Amendment1toIEC61
4、662Published:1996-05TechnicalReportIEC61819/Ed.1TestparameterssimulatingtheeffectsofLPScomponentsIEC81/145/CDVForecast:2001TRPart1:GeneralprinciplesIEC61024-1Published:1990-03Section1:GuideASelectionofprotectionlevelsforlightningprotectionsystemsIEC61024-1-1Published:1993-08Section
5、2:GuideBDesign,installation,maintenanceandinspectionoflightningprotectionsystemsPublished:1998-05Part1:GeneralprinciplesIEC61312-1Published:1995-02Part2(technicalspecification):Shieldingofstructure,bondinginsidestructureandearthingIEC61312-2TSPublished:1999-08Part3(technicalspecifi
6、cation):Requirementsofsurgeprotectivedevices(SPDs)IEC61312-3TSPublished:2000-07Amendment1:AnnexDCoordinationofSPDwithinexistingstructuresIEC81/150/CDForecast:2001Part4(TechnicalReport):ProtectionofequipmentinexistingstructuresPublished:1998-09IECTC81雷電保護(hù)Part1:Fibreopticinstallation
7、sIEC61643-1Published:1999-07Part2:LinesusingmetallicconductorsIEC81/164/FDISForecast2001Part5:ApplicationGuideIEC81/165/CDForecast:2000IEC61024-1/Ed.2Protectionofstructureagainstfire,explosionandlifehazardsIEC81/151/CDVStatus:MCRcirculatedForecast:2001IEC61662/Ed.2TSRiskduetolightn
8、ingIEC81/156/CDForecast:20
