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ANSI/NEMA/IEC 60974-7-2021
Arc Welding Equipment Part 7: Torches (Adoption with Modifications and Revision)
Specifies safety and construction requirements for torches used for arc welding and allied processes. This document is applicable to manual, mechanically guided, air-cooled, liquid-cooled, motorized, spool-on and fume extraction torches. (national adoption of IEC 60974-7, edition 4 with modifications and revision of ANSI/NEMA/IEC 60974-7-2009).
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NEMA: National Electrical Manufacturers Association [nema]
NEMA: National Electrical Manufacturers Association [nema]