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YJV YJV22 35kV及以下交联聚乙烯绝缘电力电缆耐压性能和验收中英文说明

一、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IEC60502-1997标准生产。

Executive standard

As s e ctio n “e x tr ud ed i n s u l a tion po w e r c a ble with rated voltage from 1kV（Um=1. 2 kV）to 3 5 kV （Um=40.5 kV）” stipulated in GB/T12706.1-2008~ GB/ T12706.3 -2008 or IEC60502-1997 according to the re-quirement of the customer.

二、使用特点

1、电缆导体的允许长期zui高工作温度为90℃。

       2、短路时（zui长持续时间不超过5秒）电缆导体的zui高温度不超过250℃。

3、电缆敷设时的环境温度不得低于0℃。

      4、电缆的zui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U0/U为0.6/1kV~26/35kV。

       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，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“zui高系统电压”的zui大值。

Working Condition

1、Long-term working temperature by cable conductor is 90℃.

2、Max. temperature of cable conductor shall be no more than 250℃ during short circuit (the longest lasting time shall be no more than 5 seconds).

3、Environment temperature for installation is no lessthan 0℃.

4、Min bending radium of cable:It is no less than 15 times that of cable outer diameter for cable with three cores.It is no less than 20 times that of cable outer diameter for cable with single core.

5、A.C. rated voltage U0/U of cable is 0.6/1kV~26/ 35kV.

U 0: rated A .C. voltage of c onductor to ear th OR between metallic shielding for cable designing, which is called phrase voltage.

U：rated A.C. voltage between conductors for cable designing, which is called wire voltage.

Um: Max endurable value of “Max system voltage” for cable

三、电缆结构示意图

安徽天康（集团）股份有限公司      ：李贻敬

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优质供应： 低烟无卤阻燃电缆  耐火电缆  耐寒电缆  变频电力电缆

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注：1、土壤温度为25℃，土壤热阻系数为1.0℃.m/w。 Note: 1. Soil temperature is 25℃. Heat-resistant coefficient of soil is 1.0℃.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。 2.Distance between two close cables amount to outer diameter of cable when being arrayed in parallel for cable with single core.

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。3. You can refer to that of inarmored cable about current-loading capacity of armored cable, which is relevantly smaller compared with that of inarmored cable.