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GB/T 5226.34-2020Electrical safety of machinery—Electrical equipment of machines—Part 34: Requirements for machine tools (English PDF)

机械电气安全 机械电气设备 第34部分:机床技术条件

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

April 28, 2020

Implementation date

November 1, 2020

Scope

GB/T 5226.34-2020 is the English-translated version of 机械电气安全 机械电气设备 第34部分:机床技术条件.

GB/T 5226.34-2020 is the Chinese standard "Electrical safety of machinery—Electrical equipment of machines—Part 34: Requirements for machine tools".

Its scope clause reads: This part of GB/T 5226 specifies the technical requirements for the safety and acceptance of machine tool electrical equipment and systems (referred to as "electrical equipment").

This section applies to machine tool electrical equipment and systems. Note 1. The electrical equipment and systems of machine tools referred to in this section generally include electrical equipment and systems such as metal cutting machine tools, woodworking machine tools, and forging machine tools.

Examples of machine tools are given below, but not limited to the examples given. a) Lathes (including. hand-operated lathes without CNC systems or with limited function CNC systems, CNC machine tools, CNC lathes and turning centers, single Or multi-spindle automatic lathe); b) Milling machine (including. boring machine); c) machining center; d) Planer; e) Drilling machine; f) grinder; g) Gear processing machine; h) Laser processing machine tools; i) Electric machine tool (not including discharge circuit part); j) Cold metal sawing machine; k) Shearing machine; l) Hydraulic bending machine; m) Hydraulic and pneumatic press machines; n) Circuits that use electrical energy directly as tools should not be within the scope of this part.

Note 2. The electrical equipment referred to in this section includes machine tool electrical equipment, electronic equipment and programmable electronic equipment, and the system includes electrical control system and digital control Control system (CNC system).

Note 3. The electrical equipment and systems described in this section start from where the electrical power of the machine tool electrical equipment is introduced.

Note 4. The electrical equipment and systems and their components applicable to this part have a nominal voltage not exceeding AC1000V or DC1500V and a rated frequency not exceeding 200Hz.

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Document preview — GB/T 5226.34-2020

National Standard of the People's Republic of China

ICS
29.020
Classification
J 09

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Contents

  • Foreword
  • 1 Scope
  • 2 Normative references
  • 3 Terms and definitions, abbreviations
  • 4 Basic requirements
  • 5 Introduce power cord termination method and disconnect switch
  • 6 Protection against electric shock
  • 7 Protection of electrical equipment
  • 8 Equipotential bonding
  • 9 Control circuit and control function
  • 10 Operation panel and machine-mounted control devices
  • 11 Location, installation and electrical cabinet of control equipment
  • 12 Wire and cable
  • 13 Wiring technology
  • 14 Motors and related equipment
  • 15 Sockets and lighting
  • 16 Marks, warning signs and reference codes
  • 17 Technical Document
  • 18 Verification
  • Appendix A (Normative Appendix) Safety of Machine Tool CNC System
  • Appendix B (Informative Appendix) Functional Safety Instructions
  • Appendix C (Informative Appendix) Operating Current of Protection Devices

1 Scope

This part of GB/T 5226 specifies the technical requirements for the safety and acceptance of machine tool electrical equipment and systems (referred to as "electrical equipment").

This section applies to machine tool electrical equipment and systems.

Note 1. The electrical equipment and systems of machine tools referred to in this section generally include electrical equipment and systems such as metal cutting machine tools, woodworking machine tools, and forging machine tools.

Examples of machine tools are given below, but not limited to the examples given.

a) Lathes (including. hand-operated lathes without CNC systems or with limited function CNC systems, CNC machine tools, CNC lathes and turning centers, single

Or multi-spindle automatic lathe);

b) Milling machine (including. boring machine);

c) machining center;

d) Planer;

e) Drilling machine;

f) grinder;

g) Gear processing machine;

h) Laser processing machine tools;

i) Electric machine tool (not including discharge circuit part);

j) Cold metal sawing machine;

k) Shearing machine;

l) Hydraulic bending machine;

m) Hydraulic and pneumatic press machines;

n) Circuits that use electrical energy directly as tools should not be within the scope of this part.

Note 2. The electrical equipment referred to in this section includes machine tool electrical equipment, electronic equipment and programmable electronic equipment, and the system includes electrical control system and digital control

Control system (CNC system).

Note 3. The electrical equipment and systems described in this section start from where the electrical power of the machine tool electrical equipment is introduced.

Note 4. The electrical equipment and systems and their components applicable to this part have a nominal voltage not exceeding AC1000V or DC1500V and a rated frequency not exceeding

200Hz.

2 Normative references

The following documents are essential for the application of this document. For dated references, only the dated version applies to this article

Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document.

GB/T 755-2008 Rating and performance of rotating electrical machines (IEC 60034-1..2004, IDT)

GB/T 4026-2019 Basic and Safety Rules for Human-Machine Interface Marking and Identification of Equipment Terminals, Conductor Terminals and Conductors (IEC 60445..2017, IDT)

GB/T 4205-2010 Basic and safety rules for operation of human-machine interface signs (IEC 60447..2004, IDT)

GB/T 5226.1-2019 Mechanical Electrical Safety Mechanical Electrical Equipment Part 1. General Technical Conditions (IEC 60204-1.

2016, IDT)

GB/T 12668.501-2013 Speed-adjustable electrical drives Part 5-1. Safety requirements Electrical, thermal and energy (IEC 61800-5-

1..2007, IDT) […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 22 pages — is available in the English PDF.

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