This part of GB 15579 specifies the safety requirements and structural requirements for industrial or professional liquid cooling systems used for cooling torches (guns) in arc welding and similar processes. This section applies to free-standing liquid cooling systems. The cooling system can be located inside or outside the welding power source. This section does not apply to refrigeration systems.
GB/T 15579.2-2014 Referenced Document
GB 15579.1-2013 Arc welding equipment.Part 1:Welding power sources