標準號：BS EN 60917-2-1-1997
中文標準名稱：研制電子設備機械構件用模塊排序.25mm設備的接口配合尺寸分規范.第1節:機殼和支架尺寸
英文標準名稱：Modular order for the development of mechanical structures for electronic equipment practices - Sectional specification - Interface co-ordination dimensions for the 25 mm equipment practice - Detail specification - Dimensions for cabinets and racks
標準類型：L94
發布日期：1997/4/15 12:00:00
實施日期：1997/4/15 12:00:00
中國標準分類號：L94
國際標準分類號：31.190
適用范圍：This section of IEC 917-2 is a detail specification which is to be used in whole or in part in all fields of electronics where devices and systems are designed according to the sectional specification IEC 917-2. The dimensions in the tables of this detail specification are a selection from the sectional specification IEC 917-2. All other sizes from the sectional specification are valid in this detail specification provided the relationship between the dimensions is maintained, i.e. the dimensional difference between the co-ordination dimensions HC, WC and DC and dimensions HCO, HC1 HC2; WCO, WC1 and DCO, OC1 shown in tables 1, 2 and 3 are to be maintained. The purpose of this publication is the specification of dimensions which will ensure mechanical interchangeability of cabinets and racks, and ensure mechanical interchangeability for sub-rack mounting. Cabinets and racks can be arranged together to form larger operating units. Application of specific cabinets or racks, attachments and accessories, such as heat exchangers, control elements, switches, etc. does not form part of this specification.