BS EN 50504:2008

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.

• 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