FB 2.20 provides installers and code enforcement officials with comprehensive guidance on the proper selection and application of the most common cable and flexible conduit fittings.
FB 2.20提供安装工人和在选择和应用普通电缆和可伸缩导管配件方面拥有全面指导经验的法典执行官员。
The paper introduces the design process of optical fiber composite ground wires (OPGW) in the light of structure type selection, heat stability, mechanics calculation and the kit fittings.
介绍了OPGW光纤复合架空地线的设计过程，并从OPGW的结构选型、热稳定、力学计算以及配套金具等几个方面进行了阐述。
The National Electrical Manufacturers Association (NEMA) has published FB 2.20-2007 Selection and Installation Guidelines for Fittings for Use with Flexible Electrical Conduit and Cable.
美国国家电气制造商协会出版了FB 2.20 - 2007用于电气管道和电缆配置的选择和安装手册。
The National Electrical Manufacturers Association (NEMA) has published FB 2.20-2007 Selection and Installation Guidelines for Fittings for Use with Flexible Electrical Conduit and Cable.
美国国家电气制造商协会出版了FB 2.20 - 2007用于电气管道和电缆配置的选择和安装手册。
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