标准摘要
[中文适用范围]： 形成 IEC Publicatin 297 第三版的第 1 部分。适用于基于 482.6 mm 实践的所有应用的面板和机架。指定了面板尺寸和公差。 [外文原描述]： Applies to panels and racks for all applications which are based on 482.6 mm (19 in) practice.
英文名称Dimensions of mechanical structures of the 482.6 mm (19 in) series. Part 1: Panels and racks