MTJV MYJV22 MYJV32【矿用交联高压电缆】-3.6/6 6/10 8.7/10 21/35 26/35kv
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| 6kV~35kV 中低压铜芯及铝芯交联聚乙烯绝缘电力电缆（YJV电缆，YJV22电缆，YJLV电缆，YJLV22电缆）XLPE Insulated Power Cable | |||||||||||||||||||||||||||||||
| 高压电力电缆 交联聚乙烯绝缘电力电缆是采用化学方法或物理方法,使聚乙烯分子由线型分子结构转变为三维网状结构,由热塑性的聚乙烯变成热固性的交联聚乙烯,从而提高了聚乙烯的耐老化性能、机械性能和耐环境能力，并保持了优良的电气性能。 交联聚乙烯绝缘电力电缆导体的允许*zui高温为90摄氏度，较低绝缘电缆、聚氯乙烯绝缘电缆和聚乙烯绝缘电缆高，且具有重量轻、结构简单、使用方便、耐化学腐蚀和敷设不受落差限制等优点。 26/35KV电力电缆，18/30KV交联电缆，12/20KVYJV电缆，8.7/15KVYJV22电缆线，6/10KV铝芯交联电缆线，3.6/6KVYJLV单芯电缆 中低压交联电缆产品标准 Standard 本产品按GB12706《额定电压35V及以下铜芯、铝芯塑料绝缘电力电缆》标准生产，同时还可根据用户需要按电工委员会*标准IEC、英国标准、德国标准及美国标准生产。 The product is manufactured according to the standard of《GB12706 or IEC、BS、DIN and ICEA upon request. 适用范围 Applications 本产品适用于工频额定电压3.6/6kv～26/35kv输配电线路作配送电能子用。 The product is suitable for use in power transmission and distribution lines with rated power frequency voltage 3.6/6kv～26/35kv. 使用特性 Operating characteristics · 工频额定电压U0/U为3.6/6kv～26/35kv。 Rated power-frepuency voltage U0/U: 3.6/6kv～26/35kv. · 电缆导体的zui高允许工作温度：90℃。 Max.admissible operating temperature of the conductor:90℃. · 短路时（zui长时间不超过5s）电缆导体的zui高温度不超过2500C。 Max. short-circurt temperature of conductor shall not exceed 2500C. （5s maximum duration） · 电缆敷设时环境温度应不低于00C。 The ambient temperature under installation should not below 00C. · 电缆弯曲半径：三芯电缆不小于电缆外径15倍；单芯电缆不小于电缆外径20倍。 The bending radius of a single-core cable should not less than 20 times of the cable diameter. The bending radius of a single-core cable should not less than 15 times of the cable diameter. 电缆额定电压的选择 Voltage designation · 电缆的额定电压应适合于电缆系统的运行状况，用U0/U（Um）kv表示。 U0－电缆设计用的导体对地或金属屏蔽之间的额定工频电压； U－电缆设计用的导体间的额定工频电压； Um－设备可承受的“zui高系统电压”的zui大值。 The rated voltage of the cable for a given applixation shall be suitable for the operating conditions in the system in which the cable is used,and is expressed in the form of U0/U（Um）kv Where: U0－The rated power-frequency voltage between conductors and earth metallic screen ,for which the cable designed; U － The rated power-frequency voltage between conductos, for which the cable designed; Um－ The maximum value of the“highest system voltage”for which the equipment may beused. · 三相系统用电缆的U0值*如下表： The values of U0 recommened for cable to be used in three-phase systems are listed below: | |||||||||||||||||||||||||||||||
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| A类系统──该类系统任何一相导体与地和接地导体接触时，能在1min内与系统分离 B类系统──该类系统仅包括单相接地故障短时运行的条件，接地故障时间应不超过1h, 但在任何情况下，zui长不超过8h每年接地故障总持续时间不超过125h； C类系统──不属于A类、B类的系统。 System category A──This category comprises those systems in which any phase conductor that comes in contact with earth or an earth conductor. is disconnected from the system within 1 min. System category B ──This category comprises those system which,under faultconditions,are operated,are operated for ashorttimewith one phase earthed.This period should not exceed 1 h..Fora longer period, not exceeding 8h on any occasion, can be tolerated.The total duration of earth faults in any year should not exceed 125h. System categeory C──This category comprises all systems which do not fall into A and B 电缆的型号Type of cable | |||||||||||||||||||||||||||||||
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| 导体标称截面 | 绝缘 厚度 | 护套 厚度 | 电缆近似外径 | 电缆近似重量 | 20℃ 导体 | 电缆载流量 | 短路电流 | |||
| 直流 电阻 | 在空 气中 | 直埋土壤中 | 导 体 | 屏蔽层 | ||||||
| 铜带 | 铜丝 | |||||||||
| mm 2 | mm | mm | mm | kg/km | Ω/km | A | A | KA | KA | KA |
| 3×25 | 3.4 | 2.4 | 48 | 3190 | 0.727 | 120 | 125 | 3.69 | 2.958 | - |
| 3×35 | 3.4 | 2.5 | 50 | 3731 | 0.524 | 140 | 155 | 5.15 | 2.958 | - |
| 3×50 | 3.4 | 2.6 | 53 | 4396 | 0.387 | 165 | 180 | 7.31 | 2.958 | - |
| 3×70 | 3.4 | 2.7 | 57 | 5198 | 0.268 | 210 | 220 | 10.2 | 2.958 | - |
| 3×95 | 3.4 | 2.9 | 62 | 6350 | 0.193 | 355 | 265 | 13.8 | 2.958 | - |
| 3×120 | 3.4 | 3 | 65 | 7257 | 0.153 | 290 | 300 | 17.4 | 2.958 | - |
| 3×150 | 3.4 | 3.1 | 69 | 8383 | 0.124 | 330 | 340 | 21.7 | 2.958 | - |
| 3×185 | 3.4 | 3.2 | 72 | 9741 | 0.0991 | 375 | 380 | 26.7 | 2.958 | - |
| 3×240 | 3.4 | 3.3 | 78 | 11854 | 0.0754 | 435 | 435 | 34.6 | 3.301 | - |
| 3×300 | 3.4 | 3.4 | 84 | 14861 | 0.0601 | 495 | 485 | 43.1 | 3.301 | - |
