重磅！电缆从业人员必备知识（注意收藏，很难找齐）！

电缆主要技术参数 Main technical data of cable

20℃时导体最大直流电阻 Max.D.C resistance of conductor at 20℃

电压试验、局部放电试验 Voltage test and partial discharge

导体短路电流 Short –circuit current

电容、电感（参考值） Capacitance and inductance of cable (reference value)电容 Capacitance

单芯电缆电感 Inductance of single core cable

三芯电缆电感 Inductance of three cores cable

电流载流量 The current carrying capacity

0.6/1kv聚氯乙烯绝缘电力电缆 0.6/1kv PVC insulated power cable (A)

在土壤中的敷设 Buried (A)

0.6/1KV交联聚氯乙烯绝缘非铠装型电力电缆 0.6/1kv XPLE insulated unarmoured power cable (A)

0.6/1KV 交联聚乙烯绝缘铠装型电力电缆 0.6/1kv XLPE insulated armoured power cable (A)

3.6/6~26/35kv

金属屏蔽层的短路电路 Short circuit current of screen

单芯电缆 Single core

三芯电缆 Three-cores

载流量计算条件：Current ratings are calculated for the following installation conditions:导体最高工作温度 Max. Rated temperature of the cable conductor 聚氯乙烯绝缘为70℃，交联聚乙烯绝缘为90℃PVC insulated 70℃ ,XPLE insulated 90℃ 环境空气温度：Ambient air temperature 40℃

土壤温度：soil temperature 25℃土壤热阻系数：Rating factors for ground thermal resistive 1.0. ℃ m/w埋设深度： Depth 0.8m仅考虑一个回路 Single circuit parallel laid 单芯电缆为水平敷设,间距为一个电缆外径Single core is paralleled installation .Adjacent space is equivalent to the diameter of cable.

环境条件对电缆载流量的修正系数Rating factors of current rating for ambient condition土壤敷设 Direct in ground

不同土壤温度下载流量修正系数 Rating factors of current rating for ambient temperature

标准文件进行电缆载流量计算

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