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GB/T 26679-2011: Electrical, electronic and programmable electronic control systems of machine tools -- Specification of the continuity of the protective bonding circuit test
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GB/T 26679-2011: Electrical, electronic and programmable electronic control systems of machine tools -- Specification of the continuity of the protective bonding circuit test

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Electrical, electronic and programmable electronic control systems of machine tools. Specification of the continuity of the protective bonding circuit test ICS 29.020 J50 National Standards of People's Republic of China Machine tools, electrical, electronic and programmable electronic control systems Protective bonding circuit continuity test specification Electrical, electronicandprogrammableelectroniccontrolsystemsofmachine Issued on. 2011-06-16 2011-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

Accordance with the standards GB/T 1.1-2009 given rules to write. The standard proposed by China Machinery Industry Federation. The standard mechanical and electrical systems by the National Standardization Technical Committee (SAC/TC231) centralized. This standard was drafted. Zhejiang Institute of Quality and Technical Supervision and Inspection, Hangzhou Machine Tool Group Co., Ltd., Suzhou City, measuring Detection Technology Limited, Kowloon River (Group) Technology Co., Ltd., Zhejiang. The main drafters of this standard. Bing Zhi Gang, Zheng Xijun, Guo Bing, Chen Jianming, Chen Jianguo, Ruan Zhibin. Machine tools, electrical, electronic and programmable electronic control systems Protective bonding circuit continuity test specification

1 Scope

This standard specifies the electrical machine, the terms and definitions electronic and programmable electronic control systems protective bonding circuit continuity test, the test Equipment, test conditions, test methods and test records. This standard applies to nominal voltage not exceeding AC1000V or DC1500V, does not exceed the rated frequency of 200Hz electrical machine, Electronic and programmable electronic control systems (hereinafter collectively referred to as the electrical system) protective bonding circuit continuity test, similar to the mechanical and electrical system of the machine System protection bonding circuit continuity test may refer to this standard. Note 1. Machine refers to metal cutting machine tools, electric machines and other types of machine tools; Note 2. machine tools, electrical, electronic and programmable electronic control systems refer to the machine electrical systems, electronic systems and programmable electronic control systems. In the electrical machine System applications of electronic systems and programmable electronic control system is part of the electrical system of the machine, not a separate system.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB 5226.1-2008 Safety of machinery - Electrical machinery and electrical equipment - Part 1. General requirements (IEC 60204-1.2005, IDT) GB/T 5465.2-2008 Graphical symbols for electrical equipment - Part 2. Graphical symbols (IEC 60417DB.2007, IDT) Test GB/T 18216.1-2000 AC 1000V and 1500V DC low voltage distribution systems Electrical Safety Measures Inspection, measuring or monitoring equipment - Part 1. General requirements (idt IEC 61557-1.1997) Test GB/T 18216.4-2007 AC 1000V and 1500V DC low voltage distribution systems Electrical Safety Measures Inspection, measuring or monitoring equipment - Part 4. equipotential grounding resistance and grounding resistors (IEC 61557-4.1997, IDT)

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Exposed conductive parts exposedconductivepart Accessible, normal operation is not charged, but the conductive parts in case of failure may be energized electrical equipment. [GB 5226.1-2008, the definition 3.23] 3.2 Protective bonding circuit protectivebondingcircuit To prevent the protective conductor and the conductor element insulation failure due to electrical shock while connected together. [GB 5226.1-2008, the definition 3.44] 3.3 Open circuit voltage open-circuitvoltage Uq When voltage is not applied between the terminals of the load measuring device appears. ...