300/500V塑料绝缘计算机电缆

300/500V塑料绝缘计算机电缆Control cables forcomputer 本产品适用于交流额定电压300/500V及以下防干扰性能要求较高的电子计算机、检测仪器、仪表的连接。阻燃电子计算机屏蔽控制电缆、耐火电子计算机屏蔽控制电缆、低卤低烟或无卤低烟阻燃电子计算机屏蔽控制电缆也适用于有阻燃、耐火、低烟无毒要求的场所。Thisproduct is suitable for connection of computer, inspectionapparatus and instruments with more requirement of preventinginterference with rated voltage up to 300/500V. Flame-retardantcontrol cable for computer, Fire-resisting control cable forcomputer, low-smoke low-halogen or low-smoke halogen-freeflame-retardant control cable for computer are fit forflame-retardant, fire-resisting, low-smoke innocuitysystem.一、使用特性 Requirements ofapplication1、   额定电压U0/U 为300/500V。Ratedvoltage U0/U:300/500V.2、   电缆导体的长期允许工作温度：聚氯乙烯、聚乙烯绝缘为700C，交联聚乙烯绝缘为850C。Themax. temperature of conductor in normaloperation: 700C is for PE or PVC insulatedcables, 850C is for XLPE insulatedcables.3、   电缆敷设温度应不低于00C。Laid temperature shall benot lessthan 00C.4、   允许弯曲半径：有铠装层或铜带屏蔽结构的电缆应不小于电缆外径的12倍; 其它电缆应不小于电缆外径的6倍；Theallowed bending radius for installation: It’s not less than 12times of outer diameter for armored or copper tape screen controlcables, and it’s not less than 6 times of outer diameter forothers.   二、主要技术性能  Main technicalcharacteristic1、   200C时的导体直流及电缆的绝缘电阻符合GB9330-88。D.C.resistance of conductor and insulation resistance shall be inconformity withGB9330-88.2、   电缆能经受5min、2000V耐压试验。The cable canundergo A.C. voltage of 2000V for 5 minutes withoutbreakdown.3、   电缆绞对的工作电容在频率为1kHZ时≤115×10-12F/m。Operatingcapacitance in pairs of cables shall be less or equal to115×10-12F/m.4、阻燃计算机屏蔽控制电缆能通过GB/T19666-2005规定的A类(试样每米所含非金属材料的总体积为7升，供火时间40min，炭化部分所到达的高度不超过2.5m)、B类(试样每米所含非金属材料的总体积为3.5升，供火时间40min，炭化部分所到达的高度不超过2.5m)、C类(试样每米所含非金属材料的总体积为1.5升，供火时间20min，炭化部分所到达的高度不超过2.5m)燃烧试验。Retardant-flamescreen control cable for computer can reach class A（Volume of allnon-metallic materials per meter from the selected cables is 7liter, fire supplying duration is 40min , the height of carbonizedpart shall be not more than 2.5m）, Class B (Volume of allnon-metallic material per meter from the selected cables is 3.5liter, fire supplying duration is 40min, the height of carbonizedpart shall be not more than 2.5m) and Class C(Volume of allnon-metallic material per meter from the selected cables is 1.5liter , fire supplying duration is 20 minutes, the height ofcarbonized part shall be not more than 2.5m)  testunder fire conditions specifying inGB/T19666-2005.5、耐火计算机屏蔽控制电缆能通过GB/T19666-2005规定规定（温度为750~800℃持续供火90min，2A熔丝不熔断）的燃烧试验。Fire-resistingscreen control cable for computer can pass pass (fuse shall be notmelted during 90 minutes fire supplying at the temperature of750~800℃) test under fire conditions specifying inGB/T19666-2005.6、低卤低烟、无卤低烟阻燃计算机屏蔽控制电缆能满足GB/T17650(等效IEC60754-2)及GB/17651（等效IEC61034-1）试验要求。

      Low-smoke low halogen andlow-smoke halogen-free retardant-flame screen control cable forcomputer can reach the requirements of GB/T17650（idt IEC60754-2）andGB/T17651（idtIEC61034-1）.   三、型号、名称、使用范围  Type,designation and application