NEMA EW 1-1988 (R1994, R1999, R2004)
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Electric Arc-Welding Power Sources
Hardcopy , PDF
04-18-2023
English
05-26-2021
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FOREWORD
PURPOSE
SCOPE
Section 1 REFERENCED STANDARDS
Referenced Standards
Definitions
Section 2 GENERAL
Suitability of Operation
Arc Welding Power Source with Integral Wire Feed Unit
Service Conditions
Usual Service Conditions
Unusual Service Conditions
Installation and Operation
Section 3 CONSTRUCTION REQUIREMENTS - MECHANICAL
CONSIDERATIONS
Frame and Enclosure
Enclosure Construction
Openings in Enclosures
Corrosion Protection
Service Line Hoses
Water Cooling
Brushes
Jerk and Drop Tests
Stacking of Arc Welding Power Sources
Section 4 CONSTRUCTION REQUIREMENTS - ELECTRICAL
CONSIDERATIONS
Power Supply Connection - General
Power Supply by Flexible Cord
Power Supply by Permanent Wiring System
Grounding
Corrosion Protection
Output Provisions
Internal Wiring Requirements
Spacings
Classification of Insulation Systems
Requirements for Specific Components
Output Regulating Taps
Auxiliary Power Supply
Short Circuit of Welding Circuit
Section 5 RATINGS AND PERFORMANCE
Input Ratings of Arc Welding Power Sources Operating
From Electrical Power Supplies
Power Factor Correction
Open Circuit Voltage
Output Ratings of Constant Current NEMA Class I Arc
Welding Power Sources
Output Ratings of Constant Current NEMA Class II Arc
Welding Power Sources
Output Ratings of Constant Current NEMA Class III Arc
Welding Power Sources
Output Ratings of Constant Voltage NEMA Class I Arc
Welding Power Sources
No Load Operation
Temperature Rise
Nameplate Marking
Section 6 TEMPERATURE TESTS
Testing Procedures for Arc Welding Power Sources
Thermometer Method of Temperature Determination
Resistance Method of Temperature Determination
Applied Thermocouple Method of Temperature Determination
Determination of Ambient Temperature
Cooling Air Temperature During Tests
Omission of Temperature Test on Duplicate Apparatus
Correction of Temperature to Time of Shutdown
Stopping Generator-Type Power Sources for Temperature
Tests
Section 7 HIGH-POTENTIAL TESTS
High Potential Tests
Test Voltage
Duration of Application of Test Voltage
Points of Application of Test Voltage
Temperature at Which High Potential Tests Are to be Made
High Potential Test Procedure for Components and
Accessories
Production Line High Potential Testing
Section 8 EFFICIENCY AND POWER FACTOR
Method of Determining Efficiency and Power Factor
Section 9 POWER SOURCES TO BE USED WITH GAS TUNGSTEN
ARC WELDING (GTAW)
General
Definitions
Volt Ampere Relationship for GTAW
Categories of GTAW Power Sources
Nameplate Marking
Section 10 ARC WELDING POWER SOURCES WITH HIGH FREQUENCY
ARC STARTING AND/OR STABILIZING
General
Definitions
HF Classification
Radio Frequency Radiation
General Principles for Installation of High Frequency
Stabilized Arc Welding Installations
Certifications of HFSAW Installations
Defines performance characteristics, ratings and test procedures for ac and dc arc-welding apparatus and associated equipment, as well as recommended installation and test procedures for high-frequency stabilized arc-welding machines.
| DocumentType |
Standard
|
| Pages |
0
|
| PublisherName |
National Electrical Manufacturers Association
|
| Status |
Superseded
|
| SupersededBy |
| ANSI Z49.1 : 2012 | SAFETY IN WELDING, CUTTING, AND ALLIED PROCESSES |
| MIL-E-17764 Revision C:1982 | ELECTRODE, CUTTING, TUBULAR, STEEL, COVERED |
| AWS WHC2.01 : 0 | WELDING PROCESSES - PART 1, WELDING HANDBOOK, 9TH EDITION, VOL. 2 - CHAPTER 1: ARC WELDING POWER SOURCES |
| MIL-W-80062 Revision C:1985 | WELDING MACHINE, ARC, DC, TRANSFORMER RECTIFIER, ADJUSTABLE CONSTANT VOLTAGE |
| AWS WHC2.02 : 0 | WELDING PROCESSES - PART 1, WELDING HANDBOOK, 9TH EDITION, VOL. 2 - CHAPTER 2: SHIELDED METAL ARC WELDING |
| AWS D16.2M/16.2 : 2007 | GUIDE FOR COMPONENTS OF ROBOTIC AND AUTOMATIC ARC WELDING INSTALLATIONS |
| MIL-E-23765 Revision B:1985 | ELECTRODES AND RODS - WELDING, BARE, SOLID AND ALLOYED CORED, GENERAL SPECIFICATION FOR |
| AWS QC19 : 2002 ERRATA 2009 | SPECIFICATION FOR AWS CERTIFICATION OF ROBOTIC ARC WELDING PERSONNEL |
| NEMA EW 4-2009 | GRAPHIC SYMBOLS FOR ARC WELDING AND CUTTING APPARATUS |
| NEMA EW 3:1983(R2002) | Semi-Automatic Wire-Feed Systems for Arc Welding |
| CSA W117.2 : 2012 | SAFETY IN WELDING, CUTTING, AND ALLIED PROCESSES |
| CSA W117.2 : 2012 : INC : UPD 2 : 2014 | SAFETY IN WELDING, CUTTING, AND ALLIED PROCESSES |
| CAN/CSA-W117.2-12 (R2017) | Safety in welding, cutting, and allied processes |
| CSA W117.2 : 2012 : INC : UPD 1 : 2013 | SAFETY IN WELDING, CUTTING, AND ALLIED PROCESSES |
| UL 551:8ED 2009-04-24 | Transformer-Type Arc-Welding Machines |
| NEMA WD 1:1999(R2005, R2010, R2015, R2020) | General Color Requirements for Wiring Devices |
| CGA E 1 : 2016 | STANDARD FOR RUBBER WELDING HOSE AND HOSE CONNECTIONS FOR GAS WELDING, CUTTING, AND ALLIED PROCESSES |
| CGA E 2 : 91(R2004) | HOSE LINE CHECK VALVE STANDARDS FOR WELDING AND CUTTING |
| NEMA EW 3:1983(R2002) | Semi-Automatic Wire-Feed Systems for Arc Welding |
| AWS C5.6 : 1989 | RECOMMENDED PRACTICES FOR GAS METAL ARC WELDING |
| IEEE C57.12.90-2010 | IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers |
| ARPM IP2 : 2015 | HOSE HANDBOOK |
| IEEE C63.2-2009 | American National Standard for Electromagnetic Noise and Field Strength Instrumentation, 10 Hz to 40 GHz Specifications |
| NFPA 70 : 2017 | NATIONAL ELECTRICAL CODE |
| IEEE 112-2004 | IEEE Standard Test Procedure for Polyphase Induction Motors and Generators |
| ARPM IP7 : 2016 | SPECIFICATIONS FOR RUBBER WELDING HOSE |
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