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BS EN ISO 5826:2014

Current

Current

The latest, up-to-date edition.

Resistance welding equipment. Transformers. General specifications applicable to all transformers

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

28-02-2014

€271.12
Excluding VAT

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Construction, additional equipment
6 Physical environment and operating conditions
7 Tests
8 Protection against electric shock
9 Thermal rating
10 Rated output voltage
11 No-load input current (I[10])
12 Short-circuit voltage (U[cc])
13 Output current under load condition
14 Cooling liquid circuit
15 Dynamic behaviour
16 Rating plate
17 Instruction manual
Annex A (informative) - Example of a rating plate
Annex B (normative) - Corrections for higher altitudes
         and cooling medium temperatures
Annex C (informative) - Notes on physical concepts and
         comments on some definitions
Annex D (informative) - Type code for single-phase
         transformers for alternating welding current
Bibliography

Provides 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.

Committee
WEE/29
DevelopmentNote
Supersedes BS 7125(1989) (06/2003) Supersedes 12/30246951 DC. (02/2014)
DocumentType
Standard
Pages
42
PublisherName
British Standards Institution
Status
Current
Supersedes

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 50Hz or 60Hz;

  • single-phase transformers with connected rectifier for d.c. welding, typically operating at 50Hz or 60Hz;

  • single-phase inverter transformers with connected rectifier for d.c. welding, typically operating at 400Hz to 2kHz;

  • three-phase transformers with connected rectifier for d.c. welding, typically operating at 50Hz or 60Hz.

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 IEC61140.

NOTE The requirements of this International Standard can be supplemented by other resistance welding transformer standards, e.g. ISO22829 and ISO10656.

ISO 10656:2016 Resistance welding equipment Transformers Integrated transformers for welding guns
ISO 17657-3:2005 Resistance welding — Welding current measurement for resistance welding — Part 3: Current sensing coil
IEC 60204-1:2016 Safety of machinery - Electrical equipment of machines - Part 1: General requirements
ISO 17657-4:2005 Resistance welding — Welding current measurement for resistance welding — Part 4: Calibration system
IEC 60085:2007 Electrical insulation - Thermal evaluation and designation
IEC 60076-12:2008 Power transformers - Part 12: Loading guide for dry-type power transformers
IEC 60529:1989+AMD1:1999+AMD2:2013 CSV Degrees of protection provided by enclosures (IP Code)
IEC 62135-1:2015 Resistance welding equipment - Part 1: Safety requirements for design, manufacture and installation
ISO 669:2016 Resistance welding Resistance welding equipment Mechanical and electrical requirements
IEC 61140:2016 Protection against electric shock - Common aspects for installation and equipment
IEC 60664-1:2007 Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests
ISO 22829:2017 Resistance welding equipment — Transformers — Integrated transformer-rectifier units for welding guns operating at 1 000 Hz
ISO 17677-1:2009 Resistance welding Vocabulary Part 1: Spot, projection and seam welding

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