A water barrier was extruded on the insulation layer of electric cable to improve electric property and to lower the cost.
在电缆绝缘缆芯外挤包一层堵水材料，不仅可改善电缆的电气性能。而且可降低电缆材料的成本。
Use of conductive or semiconductive layer of the cable electric closed in around the wire insulation layer.
用导电或半导电层把电缆的电场封闭在包围着导线的绝缘层中。
The paper introduces a computer-aid design for the multi-layer wrapping cable insulation which will be useful to select the optimal structure of the cable insulation.
本文涉及电缆多层绕包绝缘的计算机辅助设计，有助于电缆绝缘结构的最佳选择。
When the cable was burning, a lot of heat can be absorbed, and form a carbon layer to isolate the gas and protect the insulation layer from burning, so that the loss will be cut.
当电缆遭到燃烧时，能够吸收大量的热量，并形成碳化层，隔绝气层、保护绝缘层免受燃烧，使火灾的损失不致于进一步扩大化。
Heat shrink protection cover tube has good insulation and ruptuing resistance . It suitable for mend of cable out-layer protection and outlay protection of intermediate connecting .
热缩护套管具有良好的绝缘性和抗开裂性，主要用于电缆的外保护层的修补和电缆中间连接的外层保护。
Heat shrink protection cover tube has good insulation and ruptuing resistance . It suitable for mend of cable out-layer protection and outlay protection of intermediate connecting .
热缩护套管具有良好的绝缘性和抗开裂性，主要用于电缆的外保护层的修补和电缆中间连接的外层保护。
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