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国际电工委员会推荐标准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.
· 电缆导体的最高允许工作温度:90℃。
Max.admissible operating temperature of the conductor:90℃.
· 短路时（最长时间不超过5s）电缆导体的最高温度不超过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“最高系统电压”的最大值。
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值推荐如下表:
The values of U0 recommened for cable to be used in three-phase systems are listed below:
U kvU m kvU 0 * kv
A 和 B 类系统 System categories A and BC 类系统 Systems categories C
67.23.66
101268.7
1517.58.712
303618－
3540.52126
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，最长不超过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
型号 Type名称 Designation适用范围 Application
YJV铜芯交联聚乙烯绝缘氯乙烯护套电力电缆 Copper conductor,XLPE insulated and PVC sheathed power cable室内、隧道及电缆沟等场所，不能承受机械外力。单芯电缆不允许敷设在磁性管道中。 For laying indoors 、 intunnel or cable trench,unable to bear external mechan-icalforces.Single-core cable in magnetic duct is not permissible
YJLY铝芯交联聚乙烯绝缘乙烯护套电力电缆 Aluminium conductor, XLPE insulated and PVC sheathed power cable
YJY铜芯交联聚乙烯绝缘氯乙烯护套电力电缆 Copper conductor ,XLPE insulated and PEsheathed power cable
YJLY铝芯交联聚乙烯绝缘氯乙烯护套电力电缆 Alumimium conductor ,XLPE insulated and PEsheathed power cable
YJV22铜芯交联聚乙烯绝缘钢带铠装聚氯乙烯护套电力电缆 Copper conductor ,XLPE insulated, steel tape armoured and PVC sheathed power cable室内、隧道、电缆沟内，或埋地敷设等，能承受一定机械外力，但不能承受大的拉力。 For laying indoors 、 in tunnel, cable trench, or direct in ground,able to bear external mechanicalforces, but unable to bear large pulling force 。
YJLV22铝芯交联聚乙烯绝缘钢带铠装聚氯乙烯护套电力电缆 Aluminium conductor ,XLPE insulated ,steel tape armoured and PVC sheathed power cable
YJV23铜芯交联聚乙烯绝缘钢带铠装聚氯乙烯护套电力电缆 Copper conductor ,XLPE insulated ,steel tape armoured and PVC sheathed power cable
YJLV23铝芯交联聚乙烯绝缘钢带铠装聚氯乙烯护套电力电缆 Aluminium conductor ,XLPE insulated ,steel tape armoured and PVC sheathed power cable