EN 50078:1993
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Torches and guns for arc welding
01-04-2000
21-12-1993
Cooperating organizations
National foreword
Foreword
Section one: General
1 Scope
2 Normative references
3 Environmental conditions
4 Definitions
4.1 torch; gun
4.2 body
4.3 handle
4.4 nozzle
4.5 non-consumable electrode (TIG, plasma)
4.6 electrode wire (MIG, MAG, MOG)
4.7 contact tip (MIG, MAG, MOG)
4.8 cable-hose assembly
4.9 MIG/MAG torch
4.10 MOG torch
4.11 TIG torch
4.12 plasma torch
4.13 plasma welding torch
4.14 manual torch
4.15 mechanically guided torch
4.16 air cooled torch
4.17 liquid cooled torch
4.18 motorized torch
4.19 spool-on-torch
5 Classification
5.1 Process
5.2 Method of guidance
5.3 Voltage class
5.4 Type of cooling
Section two: Requirements and tests
6 Test conditions
7 Protection against electric shock
7.1 Insulation resistance
7.2 Dielectric strength
7.3 Protection against direct contact
7.3.1 Class M torches
8 Thermal rating
8.1 Temperature rise
8.2 Heating test
8.2.1 MIG/MAG and MOG torch
8.2.2 TIG and plasma welding torch
8.3 Duration of the heating test
8.4 Determination of the ambient air temperature
8.5 Cooling liquid
8.6 Resistance to weld spatter
9 Impact resistance
10 Marking
11 Instructions for use
Tables
1 Dielectric test voltages
2 Degree of protection for manual torches
3 Degree of protection for mechanically guided
torches
4 Test values for MIG welding of aluminium alloys
5 Test values for MAG welding of mild steel
6 Test values for MAG welding with flux cored wire
7 Test values for MOG welding of mild steel
8 Test values for TIG welding
9 Test values for plasma welding
Figures
1 Device for testing the resistance to weld spatter
2 Device for the impact test
Annexes
A Additional terminology
B Position of the welding torches for the heating
test
C Cooled copper block
National annex NA (informative) Committees responsible
National annex NB (informative) Cross-references
This standard is applicable to torches and guns for WIG/WAG, MOG, TIG and plasma welding. This standard is not applicable to electrode holders for manual metal arc welding and to torches for plasma cutting or submerged arc welding. This standard is not applicable to unprotected torches used in automatic equipment, where protection against direct contact is provided by other means. This standard specifies safety and construction requirements.
| Committee |
CLC/TC 26
|
| DocumentType |
Standard
|
| PublisherName |
European Committee for Standards - Electrical
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| DIN EN 50078 : 1994 | Identical |
| BS EN 50078:1994 | Identical |
| NF EN 50078 : 1994 | Identical |
| NBN EN 50078 : 1995 | Identical |
| VDE 0544-203 : 1994 | Identical |
| CEI EN 50078 : 1ED 1998 | Identical |
| I.S. EN 50078:1995 | Identical |
| NEN EN 50078 : 1994 | Identical |
| UNE-EN 50078:1996 | Identical |
| BS EN 50192:1996 | Arc welding equipment. Plasma cutting systems for manual use |
| DIN EN 50192 : 1996 | ARC WELDING EQUIPMENT - PLASMA CUTTING SYSTEMS FOR MANUAL USE |
| EN 50192:1995 | Arc welding equipment - Plasma cutting systems for manual use |
| EN 60529:1991/AC:2016-12 | DEGREES OF PROTECTION PROVIDED BY ENCLOSURES (IP CODE) (IEC 60529 EDITION 2.2 CORRIGENDUM 2:2015) |
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