• NEMA IEC 60974-2 : 2009

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    AMERICAN NATIONAL STANDARD FOR ARC WELDING EQUIPMENT - PART 2: LIQUID COOLING SYSTEMS

    Available format(s): 

    Superseded date:  04-05-2021

    Language(s): 

    Published date:  06-12-2012

    Publisher:  National Electrical Manufacturers Association

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    Table of Contents - (Show below) - (Hide below)

    FOREWORD
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Environmental conditions
    5 Tests
       5.1 Test conditions
       5.2 Measuring instruments
       5.3 Conformity of components
       5.4 Type tests
       5.5 Routine tests
    6 Protection against electric shock
       6.1 Insulation
       6.2 Protection against electric shock in normal service
            (direct contact)
       6.3 Protection against electric shock in case of a fault
            condition (indirect contact)
       6.4 Connection to the input supply network
       6.5 Leakage current between welding circuit and
            protective earth
    7 Mechanical provisions
       7.1 General
       7.2 Cooling liquid overflow
       7.3 Hose coupling devices and hose connections
    8 Cooling system
       8.1 Rated maximum pressure
       8.2 Thermal requirements
       8.3 Pressure and temperature
    9 Abnormal operation
       9.1 General requirements
       9.2 Stalled test
    10 Cooling power
       10.1 Test procedure
    11 Rating plate
       11.1 General
       11.2 Description
       11.3 Contents
       11.4 Tolerances
    12 Instructions
       12.1 Supplied documents and information
    13 Marking
       13.1 General markings
       13.2 Inlet and outlet
       13.3 Pressure warning
    Annex A (informative) - Example diagram of built-in and
            stand-alone liquid cooling systems
    Annex B (informative) - Example for a rating plate of
            stand-alone cooling system

    Abstract - (Show below) - (Hide below)

    Describes safety and construction requirements for industrial and professional liquid cooling systems used in arc welding and allied processes to cool torches.

    General Product Information - (Show below) - (Hide below)

    Document Type Standard
    Publisher National Electrical Manufacturers Association
    Status Superseded
    Superseded By

    Standards Referenced By This Book - (Show below) - (Hide below)

    NEMA IEC 60974-7 : 2009 ARC WELDING EQUIPMENT - PART 7: TORCHES
    NEMA IEC 60974-12 : 2009 ARC WELDING EQUIPMENT - PART 12: COUPLING DEVICES FOR WELDING CABLES
    NEMA IEC 60974-11 : 2009 ARC WELDING EQUIPMENT - PART 11: ELECTRODE HOLDERS

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 60974-1:2017 Arc welding equipment - Part 1: Welding power sources
    IEC 60974-7:2013 Arc welding equipment - Part 7: Torches
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