NEMA IEC 60974-7 : 2009
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
ARC WELDING EQUIPMENT - PART 7: TORCHES
05-04-2021
12-06-2012
FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Environmental conditions
5 Classification
6 Test conditions
7 Protection against electric shock
8 Thermal rating
9 Pressure of the liquid cooling system
10 Resistance to hot objects
11 Mechanical provisions
12 Marking
13 Instructions for use
Annex A (informative) - Additional terminology
Annex B (normative) - Position of the welding torches
for the heating test
Annex C (informative) - Cooled copper block
Annex D (informative) - Copper block with a hole
Annex E (informative) - Copper bars with a slot
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