2024年4月3日发(作者：皋庸)
60974-1 IEC:2005 – 17 –
ARC WELDING EQUIPMENT –
Part 1: Welding power sources
1 Scope
This part of IEC 60974 is applicable to power sources for arc welding and allied processes
designed for industrial and professional use, and supplied by a voltage not exceeding that
specified in Table 1 of IEC 60038, or driven by mechanical means.
This part of IEC 60974 specifies safety and performance requirements of welding power
sources and plasma cutting systems.
This part of IEC 60974 is not applicable to welding power sources for manual metal arc welding
with limited duty operation which are designed mainly for use by laymen.
This part of IEC 60974 is not applicable to testing of power sources during periodic
maintenance or after repair.
NOTE 1 Typical allied processes are electric arc cutting and arc spraying.
NOTE 2 This part of IEC 60974 does not include electromagnetic compatibility (EMC) requirements.
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.
IEC 60038, IEC standard voltages
IEC 60050(151), International Electrotechnical Vocabulary (IEV) – Part 151: Electrical and
magnetic devices
IEC 60050(851), International Electrotechnical Vocabulary (IEV) – Chapter 851: Electric
welding
IEC 60112, Method for the determination of the proof and the comparative tracking indices of
solid insulating materials
IEC 60245-6, Rubber insulated cables – Rated voltages up to and including 450/750 V – Part 6:
Arc welding electrode cables
IEC 60309-1, Plugs, socket-outlets and couplers for industrial purposes – Part 1: General
requirements
IEC 60417-DB:2002
2
, Graphical symbols for use on equipment
___________
2
“DB” refers to the IEC on-line database.
60974-1 IEC:2005 – 19 –
IEC 60445, Basic and safety principles for man-machine interface, marking and identification –
Identification of equipment terminals and of terminations of certain designated conductors,
including general rules for an alphanumeric system
IEC 60529, Degrees of protection provided by enclosures (IP Code)
IEC 60664-1:1992, Insulation coordination for equipment within low-voltage systems – Part 1:
Principles, requirements and tests
3
Amendment 1 (2000)
Amendment 2 (2002)
IEC 60664-3, Insulation coordination for equipment within low-voltage systems – Part 3: Use of
coating, potting or moulding for protection against pollution
IEC 60695-11-10, Fire hazard testing – Part 11-10: Test flames – 50 W horizontal and vertical
flame test methods
IEC 60974-7, Arc welding equipment – Part 7: Torches
IEC 60974-12, Arc welding equipment – Part 12: Coupling devices for welding cables
IEC 61140, Protection against electric shock – Common aspects for installation and equipment
IEC 61558-2-4, Safety of power transformers, power supply units and similar – Part 2-4:
Particular requirements for isolating transformers for general use
IEC 61558-2-6, Safety of power transformers, power supply units and similar – Part 2-6:
Particular requirements for safety isolating transformers for general use
CISPR 11, Industrial, scientific and medical (ISM) radio-frequency equipment – Electro-
magnetic disturbance characteristics – Limits and methods of measurement
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050(151),
IEC 60050(851) and IEC 60664-1, as well as the following, apply.
3.1
arc welding power source
equipment for supply
i
ng current and voltage and having the required characteristics suitable for arc
welding and allied processes
NOTE 1 An arc welding power source may also supply services to other equipment and auxiliaries for example
auxiliary power, cooling liquid, consumable arc welding electrode and gas to shield the arc and the welding area.
NOTE 2 In the following text, the term "welding power source" is used.
3.2
industrial and professional use
use intended only for experts or instructed persons
___________
3
A consolidated edition 1.2 (2002) exists that includes edition 1.0 and its amendments 1 (2000) and 2 (2002).
2024年4月3日发(作者：皋庸)
60974-1 IEC:2005 – 17 –
ARC WELDING EQUIPMENT –
Part 1: Welding power sources
1 Scope
This part of IEC 60974 is applicable to power sources for arc welding and allied processes
designed for industrial and professional use, and supplied by a voltage not exceeding that
specified in Table 1 of IEC 60038, or driven by mechanical means.
This part of IEC 60974 specifies safety and performance requirements of welding power
sources and plasma cutting systems.
This part of IEC 60974 is not applicable to welding power sources for manual metal arc welding
with limited duty operation which are designed mainly for use by laymen.
This part of IEC 60974 is not applicable to testing of power sources during periodic
maintenance or after repair.
NOTE 1 Typical allied processes are electric arc cutting and arc spraying.
NOTE 2 This part of IEC 60974 does not include electromagnetic compatibility (EMC) requirements.
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.
IEC 60038, IEC standard voltages
IEC 60050(151), International Electrotechnical Vocabulary (IEV) – Part 151: Electrical and
magnetic devices
IEC 60050(851), International Electrotechnical Vocabulary (IEV) – Chapter 851: Electric
welding
IEC 60112, Method for the determination of the proof and the comparative tracking indices of
solid insulating materials
IEC 60245-6, Rubber insulated cables – Rated voltages up to and including 450/750 V – Part 6:
Arc welding electrode cables
IEC 60309-1, Plugs, socket-outlets and couplers for industrial purposes – Part 1: General
requirements
IEC 60417-DB:2002
2
, Graphical symbols for use on equipment
___________
2
“DB” refers to the IEC on-line database.
60974-1 IEC:2005 – 19 –
IEC 60445, Basic and safety principles for man-machine interface, marking and identification –
Identification of equipment terminals and of terminations of certain designated conductors,
including general rules for an alphanumeric system
IEC 60529, Degrees of protection provided by enclosures (IP Code)
IEC 60664-1:1992, Insulation coordination for equipment within low-voltage systems – Part 1:
Principles, requirements and tests
3
Amendment 1 (2000)
Amendment 2 (2002)
IEC 60664-3, Insulation coordination for equipment within low-voltage systems – Part 3: Use of
coating, potting or moulding for protection against pollution
IEC 60695-11-10, Fire hazard testing – Part 11-10: Test flames – 50 W horizontal and vertical
flame test methods
IEC 60974-7, Arc welding equipment – Part 7: Torches
IEC 60974-12, Arc welding equipment – Part 12: Coupling devices for welding cables
IEC 61140, Protection against electric shock – Common aspects for installation and equipment
IEC 61558-2-4, Safety of power transformers, power supply units and similar – Part 2-4:
Particular requirements for isolating transformers for general use
IEC 61558-2-6, Safety of power transformers, power supply units and similar – Part 2-6:
Particular requirements for safety isolating transformers for general use
CISPR 11, Industrial, scientific and medical (ISM) radio-frequency equipment – Electro-
magnetic disturbance characteristics – Limits and methods of measurement
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050(151),
IEC 60050(851) and IEC 60664-1, as well as the following, apply.
3.1
arc welding power source
equipment for supply
i
ng current and voltage and having the required characteristics suitable for arc
welding and allied processes
NOTE 1 An arc welding power source may also supply services to other equipment and auxiliaries for example
auxiliary power, cooling liquid, consumable arc welding electrode and gas to shield the arc and the welding area.
NOTE 2 In the following text, the term "welding power source" is used.
3.2
industrial and professional use
use intended only for experts or instructed persons
___________
3
A consolidated edition 1.2 (2002) exists that includes edition 1.0 and its amendments 1 (2000) and 2 (2002).