NEMA IEC 60974-8:2008
NEMA IEC 60974-8:2008 Arc Welding Equipment - Part 8: Gas Consoles For Welding And Plasma Cutting Systems Describes safety and performance requirements for gas consoles intended to be used with combustible gases or oxygen.
Table of Contents
FOREWORD1Scope
2Normativereferences
3Termsanddefinitions
4Environmentalconditions
5Testconditions
5.1Typetests
5.2Routinetests
5.2.1Externalgasconsole
5.2.2Internalgasconsole
6Components
7Protectionagainstelectricshock
7.1Insulation
7.2Protectionagainstelectricshockinnormalservice
(directcontact)
7.2.1Protectionprovidedbytheenclosure
7.2.2Capacitors
7.3Protectionagainstelectricshockincaseofafault
condition(indirectcontact)
8Thermalrequirements
8.1Heatingtest
8.2Maximumtemperature
9Connectionsforplasmacuttingtorches
10Mechanicalrequirements
10.1Protectionagainstfireorexplosion
10.2Gaslinepurging
10.3Enclosure
10.3.1Designrequirements
10.3.2Enclosurepurging
10.3.4Safedesignofgasconsole
10.3.5Openstructure
10.4Externalgasconsole
10.5Internalgasconsole
11Gaslines
11.1Gashosesandtubing
11.2Gasfittings
11.3Leaktest
12Controlcircuits
13Instructionsandmarkings
13.1Instructions
13.2Marking
14Ratingplate
14.1Internalgasconsole
14.2Warning
AnnexA(informative)-Mechanizedplasmasystemdiagram
AnnexC(informative)-Templateofaratingplateofan
externalgasconsole
Bibliography