IEC 60974-6-2015 pdf download.Arc welding equipment – Part 6: Limited duty equipment.
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 lowvoltage 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 60974-1 1 .
NOTE 3 This part of IEC 60974 does not specify electromagnetic compatibility (EMC) requirements that are given in IEC 60974-1 0.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
IEC 60529, Degrees of protection provided by enclosures (IP Code)
IEC 60974-1 :201 2, Arc welding equipment – Part 1: Welding power sources
IEC 60974-5:201 3, Arc welding equipment – Part 5: Wire feeders
IEC 60974-7:201 3, Arc welding equipment – Part 7: Torches
IEC 60974-1 0, Arc welding equipment – Part 10: Electromagnetic compatibility (EMC) requirements
IEC 60974-1 1 , Arc welding equipment – Part 11: Electrode holders
IEC 61 032:1 997, Protection of persons and equipment by enclosure – Probes for verification
ISO 2503, Gas welding equipment – Pressure regulators and pressure regulators with flowmetering devices for gas cylinders used in welding, cutting and allied processes up to 300 bar (30 MPa)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60974-1 , as well as the following apply:
3.1 touch current
electric current passing through a human body or through an animal body when it touches one or more accessible parts of an installation or equipment [SOURCE: IEC 60050-1 95:1 990/AMD 1 :1 999, 1 95-05-21 ]
3.2 limited duty welding power source
power source intended for use by a layman
3.3 layman
operator who does not weld in the performance of his profession and has little or no formal instruction in arc welding.IEC 60974-6 pdf download.