This International Standard applies to resistance welding equipment, to guns with inbuilt transformers and to complete movable welding equipment.
The following types are included: ¾ single-phase equipment with alternating welding current; ¾ single-phase equipment with rectified welding current by rectification of the output of the welding transformer; ¾ single-phase equipment with inverter welding transformer; ¾ three-phase equipment with rectified welding current by rectification of the output of the welding transformer; ¾ three-phase equipment with a current rectification in the input of the welding transformer (sometimes called frequency convertor); ¾ three-phase equipment with inverter welding transformers.
This International Standard applies neither to welding transformers sold separately nor to safety requirements.
ISO 669:2000/Cor 1:2001 Referenced Document
IEC 60051-2:1984 Direct acting indicating analogue electrical measuring instruments and their accessories. Part 2 : Special requirements for amperemeters and voltmeters
IEC 60204-1:1992 Electrical equipment of industrial machines; part 1: general requirements
ISO 5183-1:1998 Resistance welding equipment - Electrode adaptors, male taper 1:10 - Part 1: Conical fixing, taper 1:10
ISO 5183-2:1988 Resistance spot welding; electrode adaptors, male taper 1 : 10; part 2: parallel shank fixing for end-thrust electrodes
ISO 5184:1979 Straight resistance spot welding electrodes
ISO 5821:1979 Resistance spot welding electrode caps
ISO 5826:1999 Resistance welding equipment - Transformers - General specifications applicable to all transformers