Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Physical environment and operating conditions
5 Classification of welding current meters with
their current sensing coil, and
designation of product
5.1 Classes of welding current meter with
current sensing coil
5.2 Designation of product
6 Requirements for welding current meter
with current sensing coil
6.1 Welding current
6.2 Current sensing coil
6.3 Welding current meter with its current
sensing coil
6.4 Integrator
6.5 Data processing unit
6.6 Display unit and output ports
6.7 Minimum and maximum duration of welding current
6.8 Maximum measuring current
6.9 Minimum measuring current
6.10 Phase-controlled current
6.11 Minimum time for current measurement
6.12 Fluctuation of supply voltage
6.13 Mechanical strength of current sensing coil
6.14 Setting position error of current sensing coil
6.15 Influence of ambient temperature
6.16 Test
6.16.1 Type test
6.16.2 Acceptance test
7 Test procedures
7.1 Maximum measuring current
7.2 Minimum measuring current
7.3 Phase-controlled current
7.4 Minimum time for current measurement
7.5 Fluctuation of supply voltage
7.6 Thermal test
8 Marking
Annex A (normative) Definition of indicated measuring
time and its indicated current value
A1 Indicated measuring time
A2 Welding current value for the indicated
measuring time
Annex B (informative) Set-up of a current sensing
coil and construction of welding current meters
National Annex NA (informative) Bibliography