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NEMA IEC 60974-3:2009

NEMA IEC 60974-3:2009 American National Standard For Arc Welding Equipment - Part 3: Arc Striking And Stabilizing Devices Specifies safety requirements for industrial and professional arc striking and arc stabilizing devices used in arc welding and allied processes.

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Table of Contents

FOREWORD
1Scope
2Normativereferences
3Termsanddefinitions
4Environmentalconditions
5Tests
5.1Testconditions
5.2Measuringinstruments
5.3Conformityofcomponents
5.4Typetests
5.5Routinetests
6Protectionagainstelectricshock
6.1Insulation
6.2Protectionagainstelectricshockinnormalservice
(directcontact)
6.3Protectionagainstelectricshockincaseofafault
condition(indirectcontact)
7Thermalrequirements
8Abnormaloperation
9Thermalprotection
10Connectiontotheinputsupplynetwork
11Output
11.1Ratedpeakvoltage
11.2Impulsecurrent
11.3Meanenergy
11.4Outputcircuitcapacitancedischarging
12Controlcircuits
13Hazardreducingdevice
14Mechanicalprovisions
15Ratingplate
16Adjustmentoftheoutput
17Instructionsandmarkings
17.1Instructions
17.2Markings
AnnexA(informative)-Examplesofcouplingsystemsfor
arcstrikingandstabilizingdevices
AnnexB(informative)-Exampleofaratingplate

Abstract

Specifies safety requirements for industrial and professional arc striking and arc stabilizing devices used in arc welding and allied processes.

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