产品标准 Standard

　　本产品按GB12706-91《额定电压35KV及以下铜芯、铝芯塑料绝缘电力电缆》、GB12666.5-90《电线电缆成束燃烧试验》、GB/T17650-1998《取自电缆或光缆的材料燃烧时释出气体的试验方法》和GB/T17651-1998《电缆或光缆在特定条件下燃烧的烟密度测定》标准生产0.6/1kv~26/35kv塑料绝缘电力电缆，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 GB12706-91、GB12666.5-90、GB/T17650-1998 and GB/T17651-1998 or IEC and DIN and ICEA.

 

适用范围 Applications

　　本产品适用于工频额定电压0.6/1kv~26/35KV 输配电线路作配送电能之用。

The product is suitable for power transmission and distribution lines with rated voltage 0.6/1kv~26/35kv.

 

使用特性 Operating characteristics .

　　工频额定电压U0/U为0.6/1kv~26/35kv.

Rated power frequency voltage U0/U:0.6/1KV~26/35KV.

　　PVC绝缘电缆导体的长期最高工作温度为70℃。XLPE绝缘电缆导体的长期允许最高工作温度为90℃

PVC insulated power cable Max . permissible continuous operating temperature of the conductor should not exceed 70 ℃,XPLE permissible continuous operating temperature of the conductor should not exceed 90℃.

　　短路时（最长持续时间不超过5s）电缆导体的最高温度不超过250

Max Short –circurrt temperature of conductor shall not exceed 250.(5s maximum duration)

　　电缆敷设时环境温度不低于0℃

The installation temperature should not below 0℃

　　电缆阻燃性能满足GB12666.5-90标准A类相应指标要求。

The flame-ratardant properties of cable comply with the requirements specified in A kind of GB12666.5-90

　　低卤电缆除应满足GB12666.5-90标准中A类相应指标要求外，还应满足GB/T17650.1-1998标准规定的相应指标。

The flame-retardant properties of lower halogen cable comply with requirements specified in A kind of GB12666.5-90 except compluing with requirements specified in GB/T17650.2-1998 .

　　无卤电缆除应满足GB12666.5-90标准中A类相应指标要求外，还应满足GB/T17650.2-1998和GB/T17651-1998标准规定的相应指标。

The flame-retardant properties of no halogen cable comply with requirements specified in A kind of GB12666.5-90 except compluing with requirements specified in GB/T17650.2-1998 .and GB/T17651-1998.

　　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。

Three bending radius of a single core should not less than 20 times of the cable diameter

Two bending radius of a three-core cable should not less than 15 times of the cable diameter.

电缆额定电压的选择 Voltage designation

　　电缆额定电压应适合于电缆的系统的运行状况，用U0/U（Um）表示，均为有效值，单位为kv

　　U0- 电缆设计用导体与屏蔽或金属套之间的额定工作电压；

　　U—电缆设计用导体之间的额定工频电压；

　　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 application shall be suitable for the operating condition in the system in which the cable is used , and is expressed in the form of U0/U（Um）are applied to the system voltages and running state , and expressed in the form U0/Ukv.

U0-The rated power-frequency voltage between conductor and earth or metallic screen ,for which the cable designed .

U-The rated power –frequency voltage between conductors for which the cable designed.

Um- –The maximum value of “the highest system voltage ”for which the equipment may be used.

三相系统用电缆的U0值推荐如下表：

The values U0 recommended for cables to be used in three-phase systems are listed below:

 

 第一类——用于单相接地故障时间每一次一般不大于1min，亦可用于最长不超过8小时，每年累计不超过125小时的系统。

第二类——用于接地故障时间更长的系统及对电缆绝缘性能要求较高的场合。

The first class cable – suitable for one single –phase earthing – block time does not exceed one minute each time. Max. time not exceed 8 hours ,and not exceed 125 hours in all in one year.

The second class cable – suitable for more the earthing – block time and more better insulated performa. 电缆的型号 Type of cable

 

0.6/1kv高阻燃（隔氧层）电缆的生产范围

Production Range of high performance flame –retardant cable

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