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GA306.220012FlameRetardantandFireResistivecables:ClassificationandrequirementforflameretardantandfireresistivecharacteristicsofplasticinsulatedelectriccablesPart2:Fireresistiveelectriccables10.6/1kV450/750V450/750V2GB/T29511997GB/T29521989GB/T30481994GB/T39561997GB50231997450/750VGB6995.119861GB6995.319863GB93301988GB/T12666.619906GB12706199135kVGB/T17651.219982GA132199632001-08-212002-02-01GA306.22001fireresistiveelectriccables44.14.1.1TVYYJ4.1.2GB/T29524.1.3NH4.1.44.1.4.1GB/T12666.6AB4.1.4.2ABAABBAABBAABBAAABBB4.2U0/Ua)B0.6/1kV395mm2150mm2NH-B-YJV-0.6/1kV395+150b)A450/750V46mm2NH-A–KVV22-450/750V46GA306.22001c)B300/500V26mm2NH--B-BVV–300/500kV26NH-B-BVV-300/500V2655.1GB/T39565.25.2.10.6/1kVGB127065.2.2450/750VGB93305.2.3450/750VGB50235.35.3.1450/750VGB93305.3.2450/750VGB50235.4GB/T29525.55.5.10.6/1kVGB127065.5.2450/750VGB93305.65.6.10.6/1kVGB127065.6.2450/750VGB93305.6.3450/750VGB50235.75.7.15.7.1.10.6/1kVGB12706.1199116.35.7.1.2450/750VGB93305.7.1.3450/750VGB50235.7.25.7.2.10.6/1kVGB12706.1199116.35.7.2.2450/750VGB93305.7.2.3450/750VGB50235.7.2.41GA306.220011/MPa109()1501201002168h//202030305.85.8.10.6/1kVGB12706199116.116.25.8.2450/750VGB93305.8.3450/750VGB50235.922U0/U/Vminmg/L%IA950~1000IB750~80080IIA950~1000IIB750~80012.460IIIA950~1000IIIB750~8006.1520IVA950~1000IVB750~800903AIVAIVBAB5.10GB6995.35.115.1266.1GB/T29516.2GA306.220016.2.10.6/1kV450/750VGB30486.2.2450/750VGB5023.26.36.3.1GB/T12666.66.3.26.3.2.1GA1326.3.2.26.3.3GB/T17651.26.4GB6995.177.1450/750V3km1km7.20.6/1kVGB12706450/750VGB9330450/750VGB50237.3a)b)c)d)e)1000kmf)7.47.4.1a)0.6/1kVGB12706b)450/750VGB9330c)450/750VGB5023GA306.220017.4.25899.19.2a)b)c)Vd)e)mf)g)