IEC 61212的本部分给出了与电气用工业刚性圆形层压管和棒的名称有关的定义，以及此类管和棒应满足的一般要求，这些管和棒由以下任何树脂制成:酚醛树脂、环氧树脂（环氧化物）、三聚氰胺和硅树脂。以下增强材料可单独使用或组合使用:纤维素纸、机织棉布、机织玻璃布、云母纸。 本副本包含2014年3月勘误表的内容。

This part of IEC 61212 gives the definitions related to the designations to be used for, and the general requirements to be fulfilled by, industrial rigid round laminated tubes and rods for electrical purposes made with any of the following resins as the binder: phenolic, epoxy (epoxide), melamine and silicone. The following reinforcements may be used either singly or in combination: cellulosic paper, woven cotton cloth, woven glass cloth, mica paper. The contents of the corrigendum of March 2014 have been included in this copy.