ISO 5826:2014 PDF

Scope: This International Standard gives specifications applicable to the following types of transformers for use in resistance welding equipment: — single-phase transformers for a.c. welding, typically operating at 50 Hz or 60 Hz; — single-phase transformers with connected rectifier for d.c. welding, typically operating at 50 Hz or 60 Hz; — single-phase inverter transformers with connected rectifier for d.c. welding, typically operating at 400 Hz to 2 kHz; — three-phase transformers with connected rectifier for d.c. welding, typically operating at 50 Hz or 60 Hz. For the purposes of this International Standard, the term transformer can refer to the transformer alone or with connected rectifier (transformer-rectifier unit). This International Standard applies to transformers built to protection class I or II according to IEC 61140. NOTE The requirements of this International Standard can be supplemented by other resistance welding transformer standards, e.g. ISO 22829 and ISO 10656.

ISO 5826:2014 Referenced Document

IEC 60076-12:2008 Power transformers - Part 12: Loading guide for dry-type power transformers
IEC 60085:2007 Electrical insulation - Thermal evaluation and designation
IEC 60204-1:2005 Safety of machinery - Electrical equipment of machines - Part 1: General requirements
IEC 60529:1989 Degrees of protection provided by enclosures (IP code)
IEC 60664-1:2007 Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests
IEC 61140:2001 Protection against electric shock - Common aspects for installation and equipment
IEC 62135-1:2008 Resistance welding equipment - Part 1: Safety requirements for design, manufacture and installation
ISO 10656:1996 Electric resistance welding - Integrated transformers for welding guns
ISO 17657-3:2005 Resistance welding - Welding current measurement for resistance welding - Part 3: Current sensing coil
ISO 17657-4:2005 Resistance welding - Welding current measurement for resistance welding - Part 4: Calibration system
ISO 17677-1:2009 Resistance welding - Vocabulary - Part 1: Spot, projection and seam welding
ISO 669:2000 Resistance welding - Resistance welding equipment - Mechanical and electrical requirements

2014 ISO 5826:2014 Resistance welding equipment - Transformers - General specifications applicable to all transformers
1999 ISO 5826:1999 Resistance welding equipment - Transformers - General specifications applicable to all transformers
1983 ISO 5826:1983 Transformers for resistance welding machines — General specifications applicable to all transformers