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GB/T 30844.3-2017Variable-frequency drive of 1kV and below—Part 3: Safety requiements (English PDF)

1kV及以下通用变频调速设备 第3部分:安全规程

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

September 7, 2017

Implementation date

April 1, 2018

Scope

GB/T 30844.3-2017 is the English-translated version of 1kV及以下通用变频调速设备 第3部分:安全规程.

GB/T 30844.3-2017 is the Chinese standard "Variable-frequency drive of 1kV and below—Part 3: Safety requiements". Its scope clause reads: GB/T 30844 provisions of this part of the general frequency control equipment or its components on the electrical, thermal and energy other than the power supply Security requirements.

This section does not cover used for traction and electric vehicle frequency control equipment, motors and so on.

This section applies to the rated input voltage of 1kV AC and below the rated input frequency of 50Hz or 60Hz, the output voltage Not more than 1kV, the output frequency is less than 600Hz general frequency control equipment (hereinafter referred to as frequency control equipment).

Note. The exchange of rated voltage 1140V frequency control equipment can refer to this section implementation. The relevant performance requirements are determined by the manufacturer and the user.

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Document preview — GB/T 30844.3-2017

National Standard of the People's Republic of China

ICS
29.240.99
Classification
K 46

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

Contents

  • Foreword V.
  • 1 Scope
  • 2 Normative references
  • 3 Terms and definitions
  • 4 Design and manufacture of safety requirements
  • 4.1 General requirements
  • 4.2 dangerous state of protection under fault
  • 4.3 Protection against electric shock hazard
  • 4.3.1 Define the voltage level
  • 4.3.2 Protection Isolation
  • 4.3.3 direct contact protection
  • 4.3.4 Protection in case of direct contact
  • 4.3.5 Indirect contact protection
  • 4.3.6 Insulation
  • 4.3.7 output short circuit requirements
  • 4.3.8 Residual Current Protection (RCD) or Residual Current Monitoring (RCM) Compatibility
  • 4.3.9 Capacitor discharge
  • 4.4 Thermal Hazard Protection
  • 4.4.1 Minimize the risk of fire
  • 4.4.2 Insulation material
  • 4.4.3 flammability of shell material
  • 4.4.4 Temperature Limit
  • 4.4.5 Special Requirements for Liquid Cooling VFDs
  • 4.5 Mechanical Danger Protection
  • 4.5.1 Mechanical Energy Danger
  • 4.5.2 Shell Requirements
  • 4.5.3 Mechanical Components Requirements
  • 4.5.4 Mechanical strength requirements
  • 4.5.5 Mechanical Stability
  • 4.6 Operational Hazard Protection
  • 4.6.1 Hazardous Movement of Moving Parts
  • 4.6.2 Noise emission
  • 4.6.3 Vibration and anti-vibration
  • 4.7 Other dangerous protection
  • 4.7.1 Power Danger
  • 4.7.2 Electrical connection requirements
  • 4.7.3 Power Supply Failure
  • 4.7.4 Protection of Environmental Stress
  • 4.8 Security Features
  • 4.8.1 General requirements
  • 4.8.2 Safely stop
  • 4.8.3 Overcurrent protection
  • 4.8.4 Frequency hopping setting
  • 5 test and verification
  • 5.1 General requirements
  • 5.1.1 Test Purposes and Classification
  • 5.1.2 Selection of test samples
  • 5.1.3 Test sequence
  • 5.1.4 Ground conditions
  • 5.1.5 Compliance
  • 5.1.6 Summary of pilot projects
  • 5.2 Test Technical Requirements
  • 5.2.1 appearance inspection
  • 5.2.2 Mechanical test
  • 5.2.3 Electrical test
  • 5.2.4 Non-normal working test
  • 5.2.5 Material Test
  • 5.2.6 Environmental Test (Type Test)
  • 5.2.7 Hydrostatic pressure
  • 6 Information and logo requirements
  • 6.1 General requirements
  • 6.2 Selection Information
  • 6.3 Installation and Site Commissioning Information
  • 6.3.1 General requirements
  • 6.3.2 Appearance and installation diagram
  • 6.3.3 Environmental Requirements
  • 6.3.4 Handling and Installation
  • 6.3.5 Wiring
  • 6.3.6 Overcurrent or short circuit protection
  • 6.3.7 Motor overload protection
  • 6.3.8 Site Commissioning
  • 6.4 Usage Information
  • 6.4.1 General requirements
  • 6.4.2 Parameter Adjustment
  • 6.4.3 Identification, Symbols and Signals
  • 6.5 Maintenance Information
  • 6.5.1 General requirements
  • 6.5.2 Capacitor discharge
  • 6.5.3 Automatic restart/bypass connection
  • 6.5.4 PT/CT Connection
  • 6.5.5 Other dangers
  • Appendix A (Informative) Clearance for Altitude
  • Appendix B (Informative) Symbols used in this section
  • Appendix C (Normative) Determination of clearances and creepage distances at frequencies above 30 kHz
  • Appendix D (Informative) Circular conductor cross-section
  • Appendix E (informative) Example of protection in direct contact

1 Scope

GB/T 30844 provisions of this part of the general frequency control equipment or its components on the electrical, thermal and energy other than the power supply

Security requirements. This section does not cover used for traction and electric vehicle frequency control equipment, motors and so on.

This section applies to the rated input voltage of 1kV AC and below the rated input frequency of 50Hz or 60Hz, the output voltage

Not more than 1kV, the output frequency is less than 600Hz general frequency control equipment (hereinafter referred to as frequency control equipment).

Note. The exchange of rated voltage 1140V frequency control equipment can refer to this section implementation. The relevant performance requirements are determined by the manufacturer and the user.

2 Normative references

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

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 311.1-2012 Insulating coordination Part 1. Definitions, principles and rules

GB/T 2423.2-2008 Environmental testing for electric and electronic products Part 2. Test methods Test B. High temperature

GB/T 2423.3-2006 Environmental testing for electric and electronic products Part 2. Test methods Test Cab. Constant hot and humid test

GB/T 2423.10-2008 Environmental testing for electric and electronic products Part 2. Test methods Test Fc. Vibration (sinusoidal)

GB 2894-2008 Safety signs and guidelines for their use

GB/T 3048.14-2007 wire and cable electrical performance test methods - Part 14. DC voltage test

GB/T 4207-2012 solid insulation materials, resistance to tracking index and compared to the tracking index method of determination

GB/T 4208-2017 enclosure rating (IP code)

Graphical symbols for electrical diagrams Part 1. General requirements

GB/T 4796-2008 Environmental classification of electric and electronic products Part 1. Environmental parameters and their severity

GB/T 5169.10-2006 Fire hazard testing for electrician and electronic products - Part 10. Basic test methods for glow/hot wire

Hot wire installations and common test methods

GB/T 5169.13-2013 Fire hazard testing for electric and electronic products Part 13. Glow/hot wire basic test methods

Material glow wire ignition temperature (GWIT) test method

GB/T 5169.16-2008 Fire hazard testing for electric and electronic products Part 16. Test flame 50W Horizontal and vertical fire

Flame test method

GB/T 5169.17-2008 Fire hazard testing for electric and electronic products - Part 17. Test flame 500 W flame test method

Graphical symbols for electrical equipment - Part 2. Graphical symbols

GB/T 6829-2008 Residual Current Surge Protector General Requirements

Industrial plug and socket connectors and couplers - Part 1. General requirements GB/T 11918.1-2014

Measuring methods for contact current and protective conductor current GB/T 12113-2003

GB/T 12668.1-2002 speed control electrical transmission system Part 1 General requirements Low-voltage DC speed electrical transmission system amount

The value of the provisions

GB/T 12668.2-2002 speed control electrical transmission system Part 2. General requirements of low-voltage AC variable frequency electrical drive system amount […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 63 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 311.1-2012

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