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金属电线保护管及其相应的配件,是照明、配电、控制、通讯等电气安装工程中广泛应用的一种传统线路保护器材,无论在牢固、安全、屏蔽、防老化、防腐蚀及防火等方面,都有其突出的优点。在国家有关工业与民用电气设计和安装规范、规程中都有明确的规定;由吕光大先生主编的《建筑电气安装工程图集》第二册中已有应用图例说明。
The metal wire protection tube and its corresponding accessories are a kind of traditional circuit protection equipment widely used in lighting, distribution, control, communications and other electrical installation projects, whether it is solid, safe, shielded, anti-aging, anti-corrosion and fire prevention etc. On the other hand, it has its outstanding advantages. There are clear regulations in the national regulations and procedures for the design and installation of electrical and industrial electrical appliances; the application of the legends in Volume 2 of the Atlas of Electrical Installation of Buildings, edited by Mr. Lu Guangda.