IEC 60917-2-2-1994
電子設備用機械結構設計模型化規則 第2部分:分規范 25mm設備接口配合尺寸 第2節:詳細規范 分機柜、機架、底板、前面板和插入單元尺寸
Modular order for the development of mechanical structures for electronic equipment practices - Part 2: Sectional specification; interface co-ordination dimensions for the 25 mm equipment practice; section 2: Detail specification; dimensions for subracks,