35kV及以下交联聚乙烯绝缘电力电缆XLPE Insulated Power Cable with Rated Voltage up to 35 kV
一、适用范围
本产品适用于固定敷设在交流50Hz，额定电压35kV及以下的电力输配电线路上作输送电能用。与聚氯乙烯绝缘电力电缆相比，交联电力电缆产品不仅具有优异的电气性能、机械性能、耐热老化性能、耐环境应力和耐化学腐蚀性能的能力，而且结构简单，重量轻，不受敷设落差限制，长期工作温度高(90C)等特点。
Scope ofapplication
The cable is used to transmit power on the powertransmission and distribution line of A.C.50Hz, rated voltage 35 KV or lower. By comparison with power cable withPVC insulation, it has not only excellent electric perfor-mance, mechanical performance, heat & aging resistantperformance,weather resistant performance,chemicalcorrosion resistant performance, but also simple structure.light weight, no restriction by laying drop, and high tem-perature allowance for long term working(90C) as well
二、生产执行标准
GB/T12706.1-2008-GB/T12706.3-2008《额定电压1kV(Um=1.2 kV)到35kV(Um=40.5 kV)挤包绝缘电力电缆》，也可按用户需要，采用**电工委员会IEC60502-2004标准生
Executive standard
As section“extruded insulation power cable withrated voltage from 1kV(Um=1.2 kV)to 35kV(Um=40.5 kV)”stipulated in GB/T12706.1-2008-GB/T12706.32008 or IEC60502-2004 according to the re- quirement ofthe customer.
三、使用特点
1、电缆导体的允许长期**工作温度为90℃。2、短路时(最长持续时间不超过5秒)电缆导体的**温度不超过250℃。
3电缆敷设时的环境温度不得低于0℃
4、电缆的最小弯曲半径:三芯电缆不小于电缆外径的15倍:单芯电缆不小于电缆外径的20倍。
5、电缆的工频额定电压U/U为0.6/1kV26/35kVU。:电缆设计用的导体对地或金属屏蔽之间的额定工频电压，称相电压:
U:电缆设计用的导体间的额定工频电压，称线电压:Um:设备可承受的“**系统电压”的**值。
Working Condition
1, Long-term working temperature by cable conductor is 90℃.
2、Max. temperature of cable conductor shall be no morethan 250℃ during short circuit (the longest lasting timeshall be no more than 5 seconds).
3、Environment temperature for installation is no less than0℃
4、Min bending radium of cable:It is no less than 15 times that of cable outer diameterfor cable with three cores.lt is no less than 20 times that of cable outer diameterfor cable with single core.
5、A.C. rated voltage Uo /U of cable is 0.6/1kV26/35kV.Uo : rated A.C.voltage of conductor to earth ORbetween metallic shielding for cable designing, whichis called phrase voltage.
U: rated A.C. voltage between conductors for cabledesigning, which is called wire voltage.Um : Max endurable value of “Max system voltage”for cable
四、电缆型号名称及适用场合Type，Description and Application Occasion
| 型号 Type | 名称 Description | 适用场合 Application occasion | |
| 铜Cu | 铝AI | ||
YJV | YJLV | 交联聚乙烯绝缘聚氯乙烯护套电力电缆 Power cable with XLPE insulation, PVC sheath | 敷设在室内、隧道、电缆沟及管道中，也可埋在松散的土壤中，电缆不能承受机械外力作用。单芯电缆不允许敷设在磁性管道中。 To belaid indoors, in the tunnel, cable furrow, pipe or under soft soil. Thecable can not bear mechanical force from outside. Single core cableisn’t permitted to be laid in the magnetic pipe. |
YJY | YJLY | 交联聚乙烯绝缘聚乙烯护套电力电缆 Powercable with XLPEinsulation PE sheath | |
YJV22 | YJLV22 | 交联聚乙烯绝缘钢带铠装聚氯乙烯护套电力电缆 Power cable with XLPEinsulation,steel tapearmor, PVC sheath | 直埋敷设在地下(埋设深度:距地面20.7m),电缆能承受一定机械外力作用，但不能承受大的拉力。 To be laid underground(depth of burying: at least 0.7m above earth)!the cable can bear certain mechanical force, but it can not bear greatpulling force. |
| YJV23 | YJLV23 | 交联聚乙烯绝缘钢带铠装聚乙烯护套电力电缆 Power cable with XLPE insulation steel tapearmored PE sheath | |
备注:1可根据用户需要,提供钢丝铠装型交联力缆,如:YJV32、YJLV32、YJV33、YJLV33
2、需要阻燃型电缆，应在原型号前加“ZR-”表示。
Note:1: We also produce steel wire armored cross-linked power cable such as YJV32,YJLV32,YJV33, YJLV33 according to the recuirement of the customer.
2: Prefix “ZR”(flame retardant type) shall be added to the original type when flame retardant type cable is needed.
五、电缆结构示意图 The Figure of Cable Structure
六、生产范围 Production Scope
七、电缆主要技术参数
1、20C时导体**直流电阻值应满足GB/T3956标准中的2类导体的规定:
Main Technical Parameter of Cable
Max value of conductor DC resistance at 20C shall meetthe requirement of category 2 conductor stipulated in GB/T3956 standard.
2、工频交流耐压试验 A.C.Voltage Test under Power Frequency
额定电压kV Rated voltage kV | 0.6/1 | 1.8/3 | 3.6/6 | 6/6 6/10 | 8.7/10 8.7/15 | 12/20 | 18/30 | 21/35 | 26/35 |
试验电压kV Tested voltage kV | 3.5 | 6.5 | 12.5 | 21 | 30.5 | 42 | 63 | 73.5 | 91 |
试验条件:环境温度下,5min。Testing condition: under environment temperature for 5min 试验要求:绝缘应无击穿。 Testing requirement: insulation without puncture | |||||||||
3、局部放电量应在1.73U。电压下测量局部放电量，其数值应不高于以下规定:
Partial discharging capacity shall be tested at the voltageof 1.73Uo , and its value shall be no more than that stipulatedin the following table:
额定电压 kV Rated voltage | 3.6/6 | 6/6 6/10 | 8.7/10 8.7/15 | 12/20 | 18/30 | 21/35 | 26/35 |
放电量 pcPartial discharging capacity | 10 | ||||||
4、电缆载流量
Current-loading Capacity of Cable
不同土壤热阻系数下的载流量修正系数
Currentloading capacity correcting coefficient under different heat-resistant coefficient of soil
不同土壤温度下的载流量修正系数
Current-loading capacity correcting coefficient under different soil temperature
4.1 低压交联电力电缆(0.6/1kV)
Low voltage XLPE Power Cable (0.6/1kV)
不同空气温度下的载流量修正系数
Current-loading capacity correcting coefficient under different air temperature
4.2 中压交联电力电缆(3.6kV-35kV)
Middle voltage cross-linked Power Cable(3.6kV~35kV)
不同空气温度下的载流量修正系数
Current-loading capacity correcting coefficient under different air temperature
注:1、空气温度为40C;
2、单芯电缆平型排列时，相邻电缆间的距离等于电缆外径Note: 1. Air temperature is 40C.
2.Distance between two close cables amount to outer diameter ofcable when being arrayed in parallel for cable with single core.
土壤中 In the soil
注:
1、土壤温度为25C，土壤热阻系数为1.0C.m/w。
2、单芯电缆平型排列时，相邻电缆间的距离等于电缆外径。
3、铠装型电缆的载流量值可参照非铠装电缆，比非铠装电缆略小。
Note:
1.Soil temperature is 25'C. Heat-resistant coefficient of soil is 1.0C.m/w.
2.Distance between two close cables amount to outer diameter of cable when being arrayed in parallel for cable with single core
3. You can refer to that of inarmored cable about curent-loading capacity of armored cable, which is relevantly smaller compared with that of inarmored cable.
