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GB/T 15579.7-2023Arc welding equipment - Part 7: Torches (English PDF)

弧焊设备第7部分：焊炬(枪)

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

September 7, 2023

Implementation date

April 1, 2024

Scope

GB/T 15579.7-2023 is the English-translated version of 弧焊设备第7部分：焊炬(枪).

GB/T 15579.7-2023 is the Chinese standard "Arc welding equipment - Part 7: Torches". Its scope clause reads: This document specifies the safety requirements and structural requirements for welding torches (guns) used in arc welding and similar processes.

This document is suitable for manual and mechanical Guided, air-cooled, liquid-cooled, electric, wire-spooled and fume-exhaust torches (guns). In this document, the welding torch (gun) consists of the main body of the welding torch (gun), cable hose assembly and other components.

This document also applies to cable hose assemblies connected between the power source and auxiliary equipment. This document does not apply to welding clamps used for manual arc welding and cutting torches used for air arc gouging/cutting.

Note 1.Typical similar processes include arc cutting and spraying. Note 2.For other components, see Table A.1 in Appendix A. Note 3.In this document, the requirements for welding torches and welding guns are the same.

For the sake of convenience, they are all referred to as welding torches (guns) below. Its clauses include normative reference documents; terms and definitions.

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Document preview — GB/T 15579.7-2023

National Standard of the People's Republic of China

ICS: 25.160.30
Classification: J 64
Replacing: GB/T 15579.7-2013

Issued by: State Administration for Market Regulation, China National Standardization Administration

Preface
Introduction
1 Scope
2 Normative reference documents
3 Terms and Definitions
4 Environmental conditions
5 Category
5.1 General
5.2 Process method
5.3 Guidance method
5.4 Cooling method
5.5 Arc ignition method in plasma process
6 Test conditions
6.1 General
6.2 Type test
6.3 Routine inspection
7 Protection against electric shock
7.1 Rated voltage
7.2 Insulation resistance
7.3 Dielectric strength
7.4 Protection against electric shock during normal use (direct contact)
7.5 Requirements for arc ignition and arc stabilizing voltage
8 Thermal rating
8.1 General
8.2 Temperature rise
8.3 Heating test
9 Pressure in liquid cooling systems
10 Resistant to welding spatter
11 Mechanical protection
11.1 Impact resistance
11.2 Accessible parts
11.3 Handle material
12 Nameplate
13 User Manual
Appendix A (informative) Additional terms
Appendix B (Normative) Position of the welding torch (gun) during the heat test
Appendix C (informative) Water-cooled copper block
Appendix D (informative) Copper block with holes
Appendix E (informative) Slotted copper rod

1 Scope

This document specifies the safety requirements and structural requirements for welding torches (guns) used in arc welding and similar processes. This document is suitable for manual and mechanical

Guided, air-cooled, liquid-cooled, electric, wire-spooled and fume-exhaust torches (guns).

In this document, the welding torch (gun) consists of the main body of the welding torch (gun), cable hose assembly and other components.

This document also applies to cable hose assemblies connected between the power source and auxiliary equipment.

This document does not apply to welding clamps used for manual arc welding and cutting torches used for air arc gouging/cutting.

Note 1.Typical similar processes include arc cutting and spraying.

Note 2.For other components, see Table A.1 in Appendix A.

Note 3.In this document, the requirements for welding torches and welding guns are the same. For the sake of convenience, they are all referred to as welding torches (guns) below.

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations

For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document.

ISO 21904-3.2018 Requirements, testing and marking of air filtration equipment for health and safety in welding and related processes Part 3

Note. GB/T 4208-2017 Enclosure protection level (IP code) (IEC 60529.2013, IDT)

IEC 60695-11-10 Fire hazard test Part 11-10.Test flame 50W Horizontal and vertical flame test method

Note. GB/T 5169.16-2017 Fire hazard test for electrical and electronic products Part 16.Test flame 50W Horizontal and vertical flame test methods (IEC 60695-11-10.2013,IDT) power sources)

Note 1.There is no technical difference between the quoted content of IEC 60974-1.2021 and the quoted content of IEC 60974-1.2017/AMD1.2019

Note 2.GB/T 15579.1-2013 Arc welding equipment Part 1.Welding power source (IEC 60974-1.2005, IDT)

3 Terms and definitions

The terms and definitions defined in IEC 60974-1.2021 and the following apply to this document.

ISO and IEC publish terminology databases for standardization at.

Note. See Appendix A for other related terms.

GB/T 41861 | GB/T 40337 | CNCA C06-01 | GB/T 15579.9 | GB/T 15579.6 | GB/T 15579.12 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 25 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 21904-3:2018 · IEC 60695-11-10 · IEC 60974-1:2021

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