NEMA IEC 60974-1:2008
NEMA IEC 60974-1:2008 Arc Welding Equipment - Part 1: Welding Power Sources
Table of Contents
1Scope2Normativereferences
3Termsanddefinitions
4Environmentalconditions
5Tests
6Protectionagainstelectricshock
7Thermalrequirements
8Abnormaloperation
9Thermalprotection
10Connectiontotheinputsupplynetwork
11Output
12Controlcircuits
13Hazardreducingdevice
14Mechanicalprovisions
15Ratingplate
16Adjustmentoftheoutput
17Instructionsandmarkings
AnnexA(informative)-Nominalvoltagesofsupplynetworks
AnnexB(informative)-Exampleofacombineddielectrictest
AnnexC(normative)-Unbalancedloadincaseofa.c.tungsten
inert-gasweldingpowersources
AnnexD(informative)-Extrapolationoftemperaturetotime
ofshutdown
AnnexE(normative)-Constructionofsupplycircuitterminals
AnnexF(informative)-Cross-referencetonon-SIunits
AnnexG(informative)-Suitabilityofsupplynetworkforthe
measurementofthetruer.m.svalueofthesupply
current
AnnexH(informative)-Plottingofstaticcharacteristics
AnnexI(normative)-Testmethodsfora10Nmimpact
AnnexJ(normative)-Thicknessofsheetmetalforenclosures
AnnexK(informative)-Examplesofratingplates
AnnexL(informative)-Graphicalsymbolsforarcweldingequipment
AnnexM(informative)-Efficiency
AnnexN(normative)-Primaryleakagecurrentmeasurement