10kV配电网架空绝缘导线雷击断线防护.pdf

31! 22" #$% & No. 22 2007'11( Power SystemTechnology Nov. 2007 !"#$1000-3673%2007&22-0034-04 '()*#$TM862 +,-.$A /01.$470·4037 10kV23456789:;<=:>? !" 1#$%& 2# '( 2#)*+ 2#, - 3 1!"#$%&'()*+,-.$%/43007402!1"2345()*+-6/7891000850 3!:;<=2>?***@AB+:;.CD/255086E MeasurestoPreventLighting-CausedBreakageofOverheadInsulatedConductors works CHENWei-jiang 1)SHENHai-bin 2)CHENXiu-juan 2)YANXiang-lian 2)YINBin 3 *1+WuhanHighVoltageResearch Institute of )Wuhan 430074)Hubei Province)China, 2+ChinaElectric Power ResearchInstitute)HaidianDistrict)Beijing 100085)China,3+ShandongXunshiElectric .) Zibo 255086)Shandong Province)China- ABSTRACT: Themechanismoflighting-causedbreakageof overheadinsulatedconductorsin10kV worksis analyzedandtwokindsofmethodstopreventthe lighting-caused breakage ofoverheadinsulated conductors, ., thedredgingmethodandtheblockingupmethod, areinduced. Thestructures,features,applicationprinciplesandon-site applicationsofsixkindsofpreventionproductsdevelopedon thebasisofabovementionedmethods,.,theinsulation stripedarc-protection fitting, clamping post porcelain/ compositeinsulator,stab-typearc-protectionfitting,stab-type positeinsulator,ringelectrode MOAwithexternalseriesgapandstab-typeelectrodeMOA withexternal seriesgap, arepresented. KEYWORDS: overheadinsulatedconductor,lightning- causedbreakage,protectionmeasures,highvoltageand insulation