cable thermal overload protection 接触网热过负荷保护 And Cable Protection Materials 电缆保护材料 International Cable Protection Committee 国际电缆保委员会 ..
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绝缘和保护层材料采用丁聚物，提高电缆柔软特性和防腐、耐寒特性。
Insulation and cover the material are the butyl homopolymers, improve the soft characteristics and anticorrosive, cable hardy properties.
本建议描述用不可燃材料来保护电缆的方法，并提供关于密封材料的分类和特性的资料。
This Recommendation describes the protection of cables by means of incombustible materials and provides information on the classification and characteristics of the sealing materials.
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