1 Scope
This part of GB 12668 specifies requirements for adjustable speed power drive systems, or their elements, with respect to electrical, thermal and energy safety considerations. It does not cover the driven equipment except for interface requirements.
This part applies to adjustable speed electric drive systems which include the power conversion, drive control, and motor or motors. Excluded are traction and electric vehicle drives. It applies to d.c. drive systems connected to a.c. supply voltages up to 1kV, 50Hz or 60Hz and a.c. drive systems with converter input voltages up to 35kV, 50Hz or 60Hz and output voltages up to 35kV.
Other parts of “Adjustable Speed Electrical Power Dive Systems” cover rating specifications, EMC, functional safety, etc.
The scope of this part does not include devices used as component parts of a PDS if they comply with the safety requirements of a relevant product standard for the same environment. For example, motors used in PDS shall comply with the relevant parts of IEC 60034.
Unless specifically stated, the requirements of this part apply to all parts of the PDS, including the CDM/BDM (see Figure 1).
Note: In some cases, safety requirements of the PDS (for example, protection against direct contact) can necessitate the use of special components and/or additional measures.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 12113-2003 Methods of Measurement of Touch Current and Protective Conductor Current (IEC 60990:1999, IDT)
GB 16895.3-2004 Electrical Installations of Buildings - Part 5-54: Selection and Erection of Electrical Equipment - Earthing Arrangements, Protective Conductors and Protective Bonding Conductors (IEC 60364-5-54:2002, IDT)
GB/T 16935.3-2005 Insulation Coordination for Equipment within Low-voltage Systems - Part 3: Use of Coating，Potting or Moulding for Protection Against Pollution (IEC 60664-3:2003, IDT)
IEC 60034 (All parts) Rotating Electrical Machines
IEC 60034-1 Rotating Electrical Machines - Part 1: Rating and Performance
IEC 60034-5 Rotating Electrical Machines - Part 5: Degrees of Protection Provided by the Integral Design of Rotating Electrical Machines (IP Code) - Classification
IEC 60050-111 International Electrotechnical Vocabulary (IEV) - Chapter 111: Physics and Chemistry
IEC 60050-151 International Electrotechnical Vocabulary (IEV) - Part 151: Electrical and Magnetic Devices
IEC 60050-161 International Electrotechnical Vocabulary (IEV) - Chapter 161: Electromagnetic Compatibility
IEC 60050-191 International Electrotechnical Vocabulary (IEV) - Chapter 191: Dependability and Quality of Service
IEC 60050-441 International Electrotechnical Vocabulary (IEV) -Chapter 441: Switchgear, Controlgear and Fuses
IEC 60050-442 International Electrotechnical Vocabulary (IEV) - Part 442: Electrical Accessories
IEC 60050-551 International Electrotechnical Vocabulary (IEV) - Part 551: Power Electronics
IEC 60050-601 International Electrotechnical Vocabulary (IEV) - Chapter 601: Generation, Transmission and Distribution of Electricity - General
IEC 60060-1:1989 High-voltage Test Techniques - Part 1: General Definitions and Test Requirements
IEC 60068-2-2:1974 Environmental Testing - Part 2: Tests - Tests B: Dry Heat
IEC 60068-2-6 Environmental Testing - Part 2-6: Tests - Test Fc: Vibration (Sinusoidal)
IEC 60068-2-78 Environmental Testing - Part 2-78: Tests - Test Cab: Damp Heat, Steady State
IEC 60112:2003 Method for the Determination of the Proof and the Comparative Tracking Indices of Solid Insulating Materials
IEC 60204-11 Safety of Machinery - Electrical Equipment of Machines - Part 11: Requirements for HV Equipment for Voltages Above 1 000V a.c. or 1 500V d.c. and Not Exceeding 36kV
IEC 60309 Plugs, Socket-outlets and Couplers for Industrial Purposes
IEC 60364-1 Low-voltage Electrical Installations - Part 1: Fundamental Principles, Assessment of General Characteristics, Definitions
IEC 60417 Graphical Symbols for Use on Equipment
IEC 60529:1989 Degrees of Protection Provided by Enclosures(IP Code)
IEC 60617 Graphical Symbols for Diagrams
IEC 60664-1:1992 Insulation Coordination for Equipment within Low-voltage Systems - Part 1: Principles, Requirements and Tests
Amendment 1 (2000)
Amendment 2 (2002)
Note: There exists a consolidated edition including IEC 60664-1:1992 and its Amendments 1 and 2
IEC 60664-4:2005 Insulation Coordination for Equipment within Low-voltage Systems - Part 4: Consideration of High-frequency Voltage Stress
IEC 60695-2-10 Fire Hazard Testing - Part 2-10: Glowing/Hot-wire Based Test Methods - Glow-wire Apparatus and Common Test Procedure
IEC 60695-2-13 Fire Hazard Testing - Part 2-13: Glowing/Hot-wire Based Test Methods - Glow-wire Ignition Temperature (GWIT) Test Method for Materials
IEC 60695-11-10 Fire Hazard Testing - Part 11-10: Test Flames - 50W Horizontal and Vertical Flame Test Methods
IEC 60695-11-20 Fire Hazard Testing - Part 11-20: Test Flames - 500W Flame Test Methods
IEC 60775 General Requirements for Residual Current Operated Protective Devices
IEC 60947-7-1:2002 Low-voltage Switchgear and Controlgear - Part 7-1: Ancillary Equipment - Terminal Blocks for Copper Conductors
IEC 60947-7-2:2002 Low-voltage Switchgear and Controlgear - Part 7-2: Ancillary Equipment - Protective Conductor Terminal Blocks for Copper Conductors
IEC 61230 Live Working - Portable Equipment for Earthing or Earthing and Short-circuiting
IEC 61800-1 Adjustable Speed Electrical Power Drive Systems - Part 1: General Requirements - Rating Specifications for Low Voltage Adjustable Speed d.c. Power Drive Systems
IEC 61800-2 Adjustable Speed Electrical Power Drive Systems - Part 2: General Requirements - Rating specifications for Low Voltage Adjustable Frequency a.c. Power Drive Systems
IEC 61800-4 Adjustable Speed Electrical Power Drive Systems - Part 4: General Requirements - Rating specifications for a.c. Power Drive Systems Above 1 000V a.c. and Not Exceeding 35kV
IEC 62020 Electrical Accessories - Residual Current Monitors for Household and Similar Uses (RCMs)
IEC 62271-102 High-voltage Switchgear and Controlgear - Part 102: Alternating Current Disconnectors and Earthing Switches
ISO 3864 (All parts) Graphical Symbols - Safety Colours and Safety Signs
ISO 7000:2004 Graphical Symbols for Use on Equipment - Index and Synopsis
3 Terms and Definitions
For the purposes of this standard, the terms and definitions given in IEC 60050-111, IEC 60050-151, IEC 60050-161, IEC 60050-191, IEC 60050-441, IEC 60050-442, IEC 60050-551, IEC 60050-601, IEC 60664-1, IEC 61800-1, IEC 61800-2, IEC 61800-3 and IEC 61800-4 and the following ones apply.
Table 1 provides an alphabetical cross-reference listing of terms.
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Protection against Electric Shock, Thermal, and Energy Hazards
4.1 General
4.2 Fault Conditions
4.3 Protection against Electric Shock
4.4 Protection against Thermal Hazard
4.5 Protection against Energy Hazards
4.6 Protection against Environmental Stresses
5 Test Requirements
5.1 General
5.2 Test Specifications
6 Information and Marking Requirements
6.1 General
6.2 Information for Selection
6.3 Information for Installation and Commissioning
6.4 Information for Use
6.5 Information for Maintenance
Appendix A (Informative) Examples of Protection in Case of Direct Contact
Appendix B (Informative) Examples of Overvoltage Category Reduction
Appendix C (Informative) Measurement of Clearance and Creepage Distances
Appendix D (Informative) Altitude Correction for Clearances
Appendix E (Informative) Clearance and Creepage Distance Determination for Frequencies Greater than 30kHz
Appendix F (Informative) Cross-sections of Round Conductors
Appendix G (Informative) Guidelines for RCD Compatibility
Appendix H (Informative) Symbols Referred to in this Part
Appendix NA (Informative) Chinese Documents Having Corresponding Consistency Relationship with the Normative International Documents Referenced
Bibliography
