Name: NEMA EW 4-2009
Brand: NEMA

NEMA EW 4-2009

Withdrawn

GRAPHIC SYMBOLS FOR ARC WELDING AND CUTTING APPARATUS

Withdrawn date

24-04-2023

Published date

06-12-2012

Publisher

National Electrical Manufacturers Association

1 Scope
2 References
  2.1 Normative references
  2.2 Informative references
3 Terms and definitions
4 Identification of parts and application
  4.1 General
  4.2 Procedure for parts
  4.3 Selection of symbols
  4.4 Size of symbols
  4.5 Use of color
5 Graphic symbols
6 How to combine graphic symbols
  6.1 General
  6.2 Procedure to combine symbols
  6.3 Summary
Annex A (informative) - Examples of Grouping of Symbols
A.1 Input voltage/power switch
A.2 Use of remote receptacles and selector switches
A.3 Weld start and stop push buttons
A.4 Panel indicator lights
A.5 Output (contactor) switch
A.6 Arc force control potentiometer
A.7 Terminals and selector switch on AC/DC welder
A.8 Process switch (SMAW-GTAW-GMAW)
A.9 Ignition switch on engine driven welder
A.10 Idle switch
A.11 Start/run switch
A.12 Process selection for GMAW
A.13 Control potentiometers for GMAW
A.14 Switched settings for GMAW
A.15 Setting pulsing parameters using digital display
A.16 Setting pulsed GMAW parameters with digital display
A.17 AC balance control with balanced position used for
      the SMAW process

Specifies graphic symbols for arc welding and cutting equipment, including those symbols used to identify controls, indicators, connection points, operations, functions, commands, and processes.

DocumentType	Standard
PublisherName	National Electrical Manufacturers Association
Status	Withdrawn

ANSI Z49.1 : 2012	SAFETY IN WELDING, CUTTING, AND ALLIED PROCESSES
NEMA EW 6:2006	Guidelines for Precautionary Labeling for Arc-Welding and Cutting Products

UL 551:8ED 2009-04	Transformer-Type Arc-Welding Machines
IEC 60417-1:2002	Graphical symbols for use on equipment - Part 1: Overview and application
ISO 3864-2:2016	Graphical symbols — Safety colours and safety signs — Part 2: Design principles for product safety labels
NEMA EW 6:2006	Guidelines for Precautionary Labeling for Arc-Welding and Cutting Products
SAE HDBK VOLUME SET : 2005	SAE HANDBOOK 3-VOLUME SET
NEMA EW 1-1988 (R1994, R1999, R2004)	Electric Arc-Welding Power Sources
ANSI Z129.1 : 2006	HAZARDOUS INDUSTRIAL CHEMICALS - PRECAUTIONARY LABELING
CSA E60974.1 : 2012	ARC WELDING EQUIPMENT - PART 1: WELDING POWER SOURCES
IEC 60027-1:1992	Letters symbols to be used in electrical technology - Part 1: General
IEEE 315 : 1975	GRAPHIC SYMBOLS FOR ELECTRICAL AND ELECTRONICS DIAGRAMS (INCLUDING REFERENCE DESIGNATION LETTERS)
IEC 60974-1:2017	Arc welding equipment - Part 1: Welding power sources
DIN 30600:1985-11	GRAPHICAL SYMBOLS - REGISTRATION, DESIGNATION
AWS A3.0 : 0	STANDARD WELDING TERMS AND DEFINITIONS - INCLUDING TERMS FOR ADHESIVE BONDING, BRAZING, SOLDERING, THERMAL CUTTING, AND THERMAL SPRAYING
ISO 3767-1:2016	Tractors, machinery for agriculture and forestry, powered lawn and garden equipment Symbols for operator controls and other displays Part 1: Common symbols
NFPA 70 : 2017	NATIONAL ELECTRICAL CODE
CFR 29(PT1910.1000 TO END) : 0	LABOR - OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
IEC 80416-1:2008	Basic principles for graphical symbols for use on equipment - Part 1: Creation of graphical symbols for registration
ISO 17846:2004	Welding and allied processes — Health and safety — Wordless precautionary labels for equipment and consumables used in arc welding and cutting
ISO 3864-3:2012	Graphical symbols — Safety colours and safety signs — Part 3: Design principles for graphical symbols for use in safety signs
ISO 3461-1:1988	General principles for the creation of graphical symbols — Part 1: Graphical symbols for use on equipment
ANSI Z49.1 : 2012	SAFETY IN WELDING, CUTTING, AND ALLIED PROCESSES
ISO 7000:2014	Graphical symbols for use on equipment Registered symbols