Conduit systems for cable management—Part 21:Particular requirement for rigid conduit systems
MOD IEC 61386-21:2002
全国电器附件标准化技术委员会(SAC/TC 67)
GB/T 20041.1-2015的本章替换为：GB/T 20041的本部分规定了刚性导管系统的标志和文件、尺寸、结构、机械性能、电气性能、热性能等技术要求。本部分适用于刚性导管系统。
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