IEC 60974-1:2021
Collections
International IEC standards
Publication date
June 2021
Number of pages
316 p.
Reference
IEC 60974-1:2021
IEC 60974-1:2021
June 2021
International standard
Current
Arc welding equipment - Part 1: Welding power sources
IEC 60974-1:2021 is applicable to power sources for arc welding and allied processes designed for industrial and professional use, and supplied by a voltage not exceeding 1 000 V, battery supplied or driven by mechanical means. This document specifies safety and performance requirements of welding power sources and plasma cutting systems. This sixth edition cancels and replaces the fifth edition published in 2017 and Amendment 1:2019. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:- Table 1 with an alphabetical cross-reference listing of terms added;- clearance and creepage distance reference document changed to IEC 60664-1:2020;- 6.1.2 and 6.1.3 modified to follow IEC 60664-1 basic insulation dimensioning for mains supply with rationalized voltages;- abnormal capacitor test of 6.2.2 moved to new Subclause 9.5;- 6.2.5 and 6.3.6 modified to use touch current measuring network weighted for letgo-immobilization and supply voltage tolerance requirement added;- 16.3 new structure and accuracy requirement for displayed voltage value ;- Annex A changed to normative and Table A.2 and Table A.3 added;- Annex L editorial update to standardized symbols;- redraft of efficiency and idle state power measurement in Annex M based on IEC 62301:2011;- Annex N measurement network weighted for letgo-immobilization added.
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Sumary
Arc welding equipment - Part 1: Welding power sources
IEC 60974-1:2021 is applicable to power sources for arc welding and allied processes designed for industrial and professional use, and supplied by a voltage not exceeding 1 000 V, battery supplied or driven by mechanical means. This document specifies safety and performance requirements of welding power sources and plasma cutting systems. This sixth edition cancels and replaces the fifth edition published in 2017 and Amendment 1:2019. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- Table 1 with an alphabetical cross-reference listing of terms added;
- clearance and creepage distance reference document changed to IEC 60664-1:2020;
- 6.1.2 and 6.1.3 modified to follow IEC 60664-1 basic insulation dimensioning for mains supply with rationalized voltages;
- abnormal capacitor test of 6.2.2 moved to new Subclause 9.5;
- 6.2.5 and 6.3.6 modified to use touch current measuring network weighted for letgo-immobilization and supply voltage tolerance requirement added;
- 16.3 new structure and accuracy requirement for displayed voltage value ;
- Annex A changed to normative and Table A.2 and Table A.3 added;
- Annex L editorial update to standardized symbols;
- redraft of efficiency and idle state power measurement in Annex M based on IEC 62301:2011;
- Annex N measurement network weighted for letgo-immobilization added.
IEC 60974-1:2021 is applicable to power sources for arc welding and allied processes designed for industrial and professional use, and supplied by a voltage not exceeding 1 000 V, battery supplied or driven by mechanical means. This document specifies safety and performance requirements of welding power sources and plasma cutting systems. This sixth edition cancels and replaces the fifth edition published in 2017 and Amendment 1:2019. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- Table 1 with an alphabetical cross-reference listing of terms added;
- clearance and creepage distance reference document changed to IEC 60664-1:2020;
- 6.1.2 and 6.1.3 modified to follow IEC 60664-1 basic insulation dimensioning for mains supply with rationalized voltages;
- abnormal capacitor test of 6.2.2 moved to new Subclause 9.5;
- 6.2.5 and 6.3.6 modified to use touch current measuring network weighted for letgo-immobilization and supply voltage tolerance requirement added;
- 16.3 new structure and accuracy requirement for displayed voltage value ;
- Annex A changed to normative and Table A.2 and Table A.3 added;
- Annex L editorial update to standardized symbols;
- redraft of efficiency and idle state power measurement in Annex M based on IEC 62301:2011;
- Annex N measurement network weighted for letgo-immobilization added.
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Replaced standards
(2)
IEC 60974-1:2017/AMD1:2019
January 2019
International standard
Cancelled
Amendment 1 - Arc welding equipment - Part 1: Welding power sources
IEC 60974-1:2017
February 2017
International standard
Cancelled
Arc welding equipment - Part 1: Welding power sources
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 1 000 V, battery supplied or driven by mechanical means. This document specifies safety and performance requirements of welding power sources and plasma cutting systems. This document is not applicable to limited duty arc welding and cutting power sources which are designed mainly for use by laymen and designed in accordance with IEC 60974-6. This document includes requirements for battery-powered welding power sources and battery packs, which are given in Annex O. This document is not applicable to testing of power sources during periodic maintenance or after repair. This fifth edition cancels and replaces the fourth edition published in 2012 and constitutes a technical revision. The significant changes with respect to the previous edition are the following: ? improvement of Figure 1 (6.1.1); ? modification of Table 3 (6.1.4); ? description of energy efficiency measurements in Annex M; ? inclusion of battery supplied welding power sources in the scope. Requirements therefore are described in Annex O.
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