NEMA IEC 60974-7:2009
NEMA IEC 60974-7:2009 Arc Welding Equipment - Part 7: Torches Describes safety and construction requirements for torches for arc welding and allied processes.
Table of Contents
FOREWORD1Scope
2Normativereferences
3Termsanddefinitions
4Environmentalconditions
5Classification
6Testconditions
7Protectionagainstelectricshock
8Thermalrating
9Pressureoftheliquidcoolingsystem
10Resistancetohotobjects
11Mechanicalprovisions
12Marking
13Instructionsforuse
AnnexA(informative)-Additionalterminology
AnnexB(normative)-Positionoftheweldingtorches
fortheheatingtest
AnnexC(informative)-Cooledcopperblock
AnnexD(informative)-Copperblockwithahole
AnnexE(informative)-Copperbarswithaslot