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ANSI/NEMA/IEC 60974-2-2021
Arc-Welding Equipment - Part 2: Liquid Cooling Systems
Specifies safety and construction requirements for industrial and professional liquid cooling systems used in arc welding and allied processes to cool torches. (national adoption of IEC 60974-2, edition 4 with modifications and revision of ANSI/NEMA/IEC 60974-2-2008)
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NEMA: National Electrical Manufacturers Association [nema]