耐火电缆耐火绝缘层材料的研究进展

Progress in the Research on Materials of Fire Proof Layer of Fire Resistant Cable

介绍了不同类型耐火绝缘层材料的组成、材料选择、性能特点及研究概况。分析认为以云母带和氧化镁为耐火绝层缘材料制备耐火电缆在生产、安装施工、成本等方面存在明显不足,而快速陶瓷化耐火绝缘层材料在生产、安装施工、成本等方面优点突出。进一步指出,应在材料选择、新产品开发等方面加强对快速陶瓷化耐火绝缘层的研究。

Insulating material composition, material selection, performance and research progress of the three types of fire-resistant insulating layer materials are described. There are obvious disadvantages in production, installa- tion and price of fire-resistant cables using mica tape and magnesium hydroxide （MgO） as fire-resistant insulating la- yer, While there are obvious advantages in production, installation and price of fire-resistant cables using fast cerami- lying fire-resistant layer as fire-resistant insulating layer. Further more, research work in material selection and new product development should be reinforced.