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BS EN ISO 17657-3:2007

Current
Current

The latest, up-to-date edition.

Resistance welding. Welding current measurement for resistance welding Current sensing coil
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

08-31-2007

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Physical environment and operating conditions
5 Classification of current sensing coils and
  designation of product
  5.1 Class of current sensing coils
  5.2 Standard values of the conversion coefficient
  5.3 Designation of products
6 Requirements for current sensing coils
  6.1 Current sensing coil and connecting lead
  6.2 Conversion coefficient
  6.3 Measuring accuracy
  6.4 Mechanical strength
  6.5 Setting position error
  6.6 Influence of ambient temperature
  6.7 Thermal property of cover materials
  6.8 Test
7 Test procedures
  7.1 Conversion coefficient
  7.2 Measuring accuracy
  7.3 Mechanical tests
  7.4 Setting position error test
  7.5 Thermal test
  7.6 Contact test
8 Marking
Annex A (informative) Design of current sensing coils
Annex B (informative) Governing parameters of the
                      conversion coefficient
Annex C (informative) Type of current sensing coils and
                      their recommended specification range
Annex D (informative) Frequency response of current sensing
                      coils

Specifies current sensing coils of the toroidal-coil type as a current sensor for welding current meters or a welding current measuring system used to monitor the welding current in resistance welding, and is applicable for both current types, i.e. alternating current of 50 Hz or 60 Hz and direct current.

Committee
WEE/29
DevelopmentNote
Renumbers and supersedes BS ISO 17657-3. 2007 version incorporates amendment 17297 to BS ISO 17657-3. Supersedes 02/705025 DC. (08/2007)
DocumentType
Standard
Pages
28
PublisherName
British Standards Institution
Status
Current
Supersedes

ISO 17657-4:2005 Resistance welding Welding current measurement for resistance welding Part 4: Calibration system
ISO 669:2016 Resistance welding Resistance welding equipment Mechanical and electrical requirements

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