供应vv.vv22.阻燃.耐火电力电缆

适用范围applications本产品适用于工频额定电压0.6/1kv及以下配电网或工业装置中固定敷设之用。theproductissuitableforuseinpowerdistributionlinesorfixedinsta-llationswithratedpower-frequencyvoltageuptoandincluding0.6/1kv.使用特性operatingcharacteristics工频额定电压uo/u为0.6/1kv。ratedpower-frequencyvoltageuo/u:0.6/1kv.电缆导体的允许长期工作最高温度为70℃max.permissiblecontinuousoperatingtemperatureofconductor:70℃短路时（最长持续时间不超过5s）电缆导体的允许最高温度：导体截面&le；300mm&ndash；160℃；导体截面300&ndash；140＞℃；max.short-circuittemperatureoftheconductorshallnotexcssd:(5smaximumduration).cross-sectionofconducter&le；300mm&ndash；160℃；cross-sectionofconducter＞300mm&ndash；140℃,电缆敷设时环境温度应不低于0℃。theambienttemperatureunderinstallationshouldshouldnotbelow0℃电缆弯曲半径不小于电缆外径10倍。thebendingradiusofacableshouldnotbelessthan10timesofthecablediameter.电缆的型号typeofcable生产范围productionrangeofcable·；0.6/1kv,单芯聚氯乙烯绝缘聚氯乙烯护套电力电缆（vv，vlv）0.6/1kv,single-core,pvcinsulated,pvcsheathedpowercable说明：单芯铠装电缆仅用于直流系统，若用生交流系统，应采用非磁性材料铠装或司磁措施。note:thearmouredsingle-corecablesareusedford.c.systemonly.asfora.c.system,nonmageneticarmourmaterialshouldbeused,oramagneticisolationshouldbeapplied.在空气中敷设1、单芯电缆平行敷设时中心距离:185mm及以下为电缆直径的2倍；240mm2及以上为90mm。2、周围环境空气温度:40℃3、导体的长期最高工作湿度:70℃inair1、thesingle&ndash；corecablesareparallellaid,thedistancebetweenthecablecenteris2timesofthecablediameterforcross&ndash；sectionareaofconductor&le；185mmand90mmforcross-sectionalareaofconductor&ge；240mm22ambientairtemperature:40℃3max.contionousoperatingtemperatureofconductor:70℃不同环境温度下载流量的修正系数直埋敷设1、单芯电缆不接触敷设时,电缆中心距离为电缆直径的2倍.2、土壤温度:25℃3、导体的长期最高工作温度:70℃4、土壤热阻系数:1.0℃.m/w5、直埋深度:0.7mdirectintheground不同土壤温度下载流量的修正系数currentratingforvariationinsoiltemperature[关闭窗口]