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EN 50078:1993

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Torches and guns for arc welding

Superseded date

04-01-2000

Published date

12-21-1993

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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