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ANSI/NEMA/IEC 60974-2-2021 (R2026)
Arc Welding Equipment Part 2: Liquid Cooling Systems (Adoption with Modifications and Revision)
This standard defines the safety and design requirements for industrial and professional liquid cooling systems used to support arc welding and related processes. It applies to both stand alone cooling units and integrated systems that are housed within welding equipment. Please note that these requirements do not cover refrigerated cooling systems.
NEMA: National Electrical Manufacturers Association [nema]