scope:

This standard is applicable to welding power sources for manual metal arc welding with limited duty with covered stick electrodes. These welding power sources a) are limited to a rated maximum welding current of 160 A, b) are fitted with a thermal cut-out device, c) their performance is based on the number of reference electrodes, capable of being melted with the welding power source starting from the cold state and d) carry on their rating plate a declaration of the fuse size necessary for the maximum output. This standard is not applicable to welding power sources either rotating or incorporating frequency conversion, remote control. This standard specifies safety requirements for the construction and describes tests methods to verify the compliance of welding power sources with this standard.