前言:这是钢筋混凝土焊接设备的协调ANCE、CSA集团和NEMA标准——第6部分:限载设备。这是NMX-J-038-1-ANCE的第三版；第2节，CSA C22第一版。2号60974-6，以及第一版ANSI/NEMA/IEC 60974-6。本协调标准基于2015年9月发布的IEC出版物60974-6:第三版，弧焊设备-第6部分:限用设备。IEC 60974-6的版权归IEC所有。在加拿大，有关《加拿大电气规范》第二部分标准的一般信息，请参见CAN/CSA-C22的前言。2号，0号。本标准的制定符合加拿大标准委员会对加拿大国家标准的要求。CSA集团已将其作为加拿大国家标准发布。 本标准已被美国国家标准协会（ANSI）批准为美国国家标准。本美国国家标准采用了IEC 60974-6第3版《弧焊设备——第6部分:限载设备》，并根据美国国家标准协会规定的程序制定和批准。范围:IEC 60974的本部分规定了适用于非专业人员使用的有限功率弧焊和切割电源及辅助设备的安全和性能要求。电动设备拟连接至单相公共低压供电系统。发动机驱动电源的输出功率不得超过7.5 kVA。注1:本设备通常由非专业人员使用- 居住区的专业人士。IEC 60974的本部分不适用于需要操作的弧焊和切割电源:引弧和稳定装置；液体冷却系统；煤气控制台；三相输入电源；仅用于工业和专业用途。IEC 60974的本部分不适用于以下应用中使用的弧焊和切割电源及辅助设备:机械导向应用；埋弧焊工艺；等离子气刨工艺；等离子焊接工艺；IEC 60974的其他部分也涵盖了这些内容。注2:IEC 60974-1、IEC 60974-5和IEC 60974分别涵盖了工业和专业用途的电源、馈电线、焊炬和电极架- 7和IEC 60974-11。注3:IEC 60974的本部分未规定IEC 60974-10.1DV中给出的电磁兼容性（EMC）要求。1 D11修改第1条，添加以下注释:注释4DV焊接设备的设计符合表DVA。适用于工业和专业用途，且满足本标准所有范围限制的，适用于非专业人士使用，前提是满足本标准的附加说明和标记要求。1DV。D12修改第1条，增加以下内容:符合至少一个以下条件的弧焊和等离子切割电源不在本标准范围内:a）配备内燃机； b） 具有标称三相电源电压；c） 单个额定电源电压大于或等于220 V；ord）具有多个标称电源电压，不包括小于或等于127 V单相电源的标称电压。满足这些条件的电源不受NOM-003的约束，通常包括在表DVA中列出的IEC 60974-1的三级采用中。3，参考号1.1DV。3.修改第1条，增加以下内容:本设备拟按照国家安装规范进行安装，用于普通场所。见附件DVA，表DVA。3，参考号2.1DV。4.D2对第1条的修改，增加以下内容:在加拿大，本标准范围内的产品也符合附录DVA表DVA的要求。 3，参考号3.1DV。5.D2对第1条的修改，增加以下内容:本标准中对IEC 60974-1的所有引用包括表DVA中的所有偏差。3，参考文献1。

Preface:This is the harmonized ANCE, CSA Group, and NEMA Standard forArc Welding Equipment — Part 6: Limited Duty Equipment. It is the third edition of NMX-J-038-1-ANCE; Section 2, the first edition of CSA C22.2 No. 60974-6, and the first edition of ANSI/NEMA/IEC 60974-6.This harmonized standard is based on IEC publication 60974-6: third edition,Arc welding equipment — Part 6: Limited duty equipment, issued September 2015. IEC 60974-6 is copyrighted by the IEC.In Canada, for general information on the Standards of theCanadian Electrical Code, Part II, see the preface of CAN/CSA-C22.2 No. 0.This standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group. This Standard has been approved by the American National Standards Institute (ANSI) as an American National Standard. This American National Standard is an adoption of IEC 60974-6 edition 3,Arc Welding Equipment – Part 6: Limited Duty Equipment, and was developed and approved in accordance with procedures set forth by the American National Standards Institute.Scope:This part of IEC 60974 specifies safety and performance requirements applicable to limited duty arc welding and cutting power sources and auxiliaries designed for use by laymen. Electrically powered equipment is intended to be connected to the single phase public low-voltage supply system. Engine driven power sources cannot exceed output power of 7,5 kVA.NOTE 1 This equipment is typically used by non-professionals in residential areas.This part of IEC 60974 is not applicable to arc welding and cutting power sources that require for operation:arc striking and stabilizing devices;liquid cooling systems;gas consoles;three-phase input supply;and which are intended for industrial and professional use only.This part of IEC 60974 is not applicable to arc welding and cutting power sources and ancillary equipment used in:mechanically guided applications;submerged arc welding process;plasma gouging process;plasma welding process;that are covered by other parts of IEC 60974.NOTE 2 Power sources, wire feeders, torches and electrode holders designed for industrial and professional use are respectively covered by IEC 60974-1, IEC 60974-5, IEC 60974-7 and IEC 60974-11.NOTE 3 This part of IEC 60974 does not specify electromagnetic compatibility (EMC) requirements that are given in IEC 60974-10.1DV.1 D1Modify Clause 1 by adding the following note:NOTE 4DV Welding equipment that has been designed to comply with Table DVA.3, Ref. No. 1, and that is intended for industrial and professional use, and that meets all the scope limitations of this standard, is suitable for use by laypersons, provided the additional instructions and markings requirements of this standard are met.1DV.2 D1Modify Clause 1 by adding the following:The following power sources for arc-welding and plasma cutting complying with at least onethe following conditions are out of scope of this standard:a) have an internal combustion engine;b) have a nominal three-phase supply voltage;c) have a single rated supply voltage greater than or equal to 220 V; ord) have multiple nominal supply voltages that do not include a nominal voltage of power supply less than or equal to 127 V single phase.Power sources meeting these conditions are exempt from NOM-003 and are normally covered in the trinational adoption of IEC 60974-1 listed in Table DVA.3, Ref. No 1.1DV.3 DRModify Clause 1 by adding the following:This equipment is intended for installation in accordance with the national installation codes for use in ordinary locations. See Annex DVA, Table DVA.3, Ref. No. 2.1DV.4 D2Modification to Clause 1 by adding the following:In Canada, products covered by the scope of this Standard are also subject to the requirements of Annex DVA, Table DVA.3, Ref. No. 3.1DV.5 D2Modification to Clause 1 by adding the following:All references to IEC 60974-1 contained in this standard include all deviations in Table DVA.3, Ref. No 1.