GB/T 26679-2011 in English

《GB/T 26679-2011机床电气、电子和可编程电子控制系统 保护联结电路连续性试验规范》由TC231（全国工业机械电气系统标准化技术委员会）归口，主管部门为中国机械工业联合会。

This standard specifies terminologies and definitions, test equipment, test conditions, test methods and test records of electrical, electronic and programmable electronic control systems of machine tools - protective bonding circuit continuity test.
This standard is applicable to continuity test on protective bonding circuit of electrical, electronic and programmable electronic control systems of machine tools (hereafter referred to as "electrical system" collectively) with nominal voltage not exceeding AC 1,000 V or DC 1,500V and rated frequency not exceeding 200 Hz; as for continuity test on protective bonding circuit of mechanical electrical system similar to machine tools, this standard may be referred to.
Note 1: Machine tools refer to metal-cutting machine tool, electrical process machine and other types of machine tools;
Note 2: Electrical, electronic and programmable electronic control systems of machine tools respectively refer to machine tool electrical system, electronic system and programmable electronic control system. Electronic system and programmable electronic control system used in machine tool electrical system are part of the machine tool electrical system and not independent systems.

Foreword i
1 Scope
2 Normative References
3 Terminologies and Definitions
4 Test Equipment
5 Test Conditions
6 Test Methods
7 Test Records
Appendix A (Informative) Example and Brief Description of Machine Tool Electric Control System Protective Bonding Circuit Continuity Test
Appendix B (Informative) Inspection Taking Automatically Cutting off Power as Protection Conditions
References