GB/T 19290.1-2003 in English

《GB/T 19290.1-2003发展中的电子设备构体机械结构模数序列 第1部分:总规范》由TC34（全国电工电子设备结构综合标准化技术委员会）归口，主管部门为国家标准化管理委员会。
本标准等同采用IEC 60917-1:1998《发展中的电子设备构体机械结构模数序列 第1部分：总规范》（英文版），包括其修改1：IEC 60917-1-Amd 1:2000。本部分涉及设备构体。模数序列用于安装在各种必须考虑尺寸接口的设施中的电子设备主要结构尺寸。

Scope

This section deals with equipment configurations. Modulus series apply to the main structural dimensions of electronic equipment installed in various installations where dimensional interfaces must be considered. It refers to fundamental parameters, not tolerances or clearances used for manufacturing. In addition, it includes information on interfaces with other technical fields as well as advanced processes and designs. This part of ISO 19990 includes standard terminology for mechanical structural parts and components of electronic equipment. This section gives the definition of the modulus sequence of the mechanical structure of electronic equipment, and provides dimensional compatibility with the mechanical interface of related engineering applications (such as printed boards, components, instruments, equipment, rooms, buildings, etc.). In addition, this standard supports the introduction and application of the modular sequence rules taking into account the following points: — Compatibility of interface dimensions for the electronic field based on SI units. - Technical and economical benefits can be obtained from the use of this rule. The terms in this section apply to all electronic equipment mechanical structure standards and related technical documents.