BS EN 50504 Validation of arc welding equipment specifies validation methods for arc welding equipment constructed and used to the accuracy specified in BS EN 60974-1 or other equivalent standards
BS EN 50504 applies to:
- Arc welding power sources
- wire feeders
- welding instrumentation.
BS EN 50504 is not applicable to arc striking and stabilizing device. Calibration, verification and validation of equipment for other welding processes and ancillary equipment which may affect the quality of the weld, e.g. flow gauges, thermocouples, robots and manipulators are given in EN ISO 17662.
Contents of BS EN 50504:2008
Introduction
Scope
Normative references
Terms and definitions
Validation accuracies
Consistency
Frequency of validation and calibration
Validators of welding equipment
Validation
Manual metal arc welding with covered electrodes
Tungsten inert gas
Metal inert/active gas and flux cored arc welding
Auxiliary components
Validation techniques
Safety precautions
Instrumentation
Power source loads
Method
Validation labels and certificates
Validation labels
Validation certificate
Accuracies for precision grade power sources
Wire feed equipment
Validation accuracies
Requirements for validation
Method
Slope, pulse and synergic controls
Validation accuracy
Requirements for validation
Method
Pulsed MIG and synergic controls
Precautions to be taken with TIG welding equipment
Validation of ancillary components in a welding system
Voltage drops in the welding circuit
Bibliography
Validation accuracies for standard grade power sources
Validation accuracies for precision grade power sources
Validation accuracies for wire feed equipment
Voltage drop in copper and aluminium welding cables at normal and elevated temperatures