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GB/T 46074-2025: Safety of thermal cutting machines
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Basic data
Standard ID: GB/T 46074-2025 (GB/T46074-2025)
Description (Translated English): Safety of thermal cutting machines
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J64
Classification of International Standard: 25.160.30
Word Count Estimation: 32,391
Date of Issue: 2025-08-29
Date of Implementation: 2026-03-01
Issuing agency(ies): State Administration for Market Regulation; Standardization Administration of China
GB/T 46074-2025: Safety of thermal cutting machines
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT46074-2025
ICS 25.160.30
CCSJ64
National Standards of the People's Republic of China
Safety of thermal cutting equipment
(ISO 17916.2016, MOD)
Published on 2025-08-29
Implemented on 2026-03-01
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
Table of Contents
Preface III
1.Scope 1
2 Normative References 1
3.Terms and Definitions 2
4 Key Risks
5.Safety Requirements and Protective Measures 4
5.1 General Requirements 4
5.2 Mechanical Safety 5
5.3 Electrical Safety 9
5.4 Thermal Safety 9
5.5 Noise safety 10
5.6 Radiation Safety 10
5.7 Material and Substance Safety 10
5.8 Ergonomic Safety 11
5.9 Environmental Safety 12
6.Information 12
6.1 General Requirements 12
6.2 User Manual 13
6.3 Noise Declaration 13
6.4 Mark 13
Appendix A (Informative) Structural changes of this document compared to ISO 17916.2016 15
Appendix B (Informative) Technical Differences Between This Document and ISO 17916.2016 and Their Reasons 18
Appendix C (Informative) Example 20 for Smoke Exhaust System Dimension Calculation
Appendix D (Informative) Example 23 of the lower limit of protection device
Appendix E (Informative) Example 24 of Compression Calculation Corresponding to the Maximum Acceptable Force in a Machine-Human Collision
Appendix F (Informative) Measurement of Air Velocity at the Cutting Table Inlet Plane 25
References 26
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents".
Drafting.
This document is modified to adopt ISO 17916.2016 "Safety of thermal cutting equipment".
Compared with ISO 17916.2016, this document has undergone many structural adjustments. A comparison table of the structural numbering changes between the two documents is provided.
See Appendix A.
This document differs significantly from ISO 17916.2016 in several technical aspects. The relevant clauses are indicated in vertical margins.
Straight lines (|) are marked. A summary of these technical differences and their reasons is provided in Appendix B.
The following editorial changes have been made to this document.
---Table 1 in ISO 17916.2016 has been deleted, and the technical content in Table 1 has been adjusted to the corresponding clauses 5.2 to 5.9;
---The term "vibration" has been removed from item 5 of Table 1 in ISO 17916.2016;
---Added "Verification methods for the corresponding clauses of safety requirements in Table 1";
---Added "Appendix A. Structural Changes of This Document Compared to ISO 17916.2016";
---Added "Appendix B. Technical Differences Between This Document and ISO 17916.2016 and Their Reasons";
---Appendices A through G will be numbered in the order they were removed from this document.
Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.
This document was proposed and is under the jurisdiction of the National Technical Committee on Standardization of Welding and Related Processes (SAC/TC55).
This document was drafted by. Jiangsu Boda CNC Complete Equipment Co., Ltd., and Harbin Welding Research Institute Co., Ltd. of China National Machinery Industry Corporation.
Company, Shanghai Fangling Computer Software Co., Ltd., Shenzhen Hongyuda CNC Technology Co., Ltd., Guanghui (Shanghai) Laser Technology Co., Ltd., Jinan
Nanjin Weike Laser Technology Co., Ltd., Jiangsu Yatai Intelligent Technology Co., Ltd., Ningbo Jinfeng Welding & Cutting Machinery Manufacturing Co., Ltd., Shenyang
Huawi Laser Equipment Manufacturing Co., Ltd., Shanghai Nuclear Engineering Research and Design Institute Co., Ltd., Shenzhen Chuangxin Laser Co., Ltd., Dong
Beijing Petroleum University, Dongfang Electric (Wuhan) Nuclear Equipment Co., Ltd., Wuhan Xinghua Yuan Welding & Cutting Equipment Co., Ltd., China Coal Beijing Coal Mining Machinery Co., Ltd.
Limited Liability Company, Jinxi Railway Vehicle Co., Ltd., Aachen United Technologies (Tianjin) Co., Ltd., Mengcheng Jiashilong Machinery Manufacturing Co., Ltd.
Beijing Jingye Technology Co., Ltd., Beijing Shougang Electromechanical Co., Ltd., Hebei Chuangli Electromechanical Technology Co., Ltd., and Chuanyi Electromechanical Equipment Qidong Co., Ltd.
The company, Tongling College, Shaanxi Huaqin New Energy Technology Co., Ltd., and Hunan Hengyue Heavy Steel Structure Engineering Co., Ltd.
The main drafters of this document are. Wang Zhixin, Xie Weixin, Fang Wan, Yu Haonan, Xiao Chunming, Ding Jianwu, Jiang Xifeng, Liu Xiaohua, and Li Naijian.
He Hongren, Zhang Junbao, Yang Dequan, Fu Guangjie, Wu Wenyun, Wang Liangzhong, Kang Feng, Wang Wei, Pan Jiajun, Gao Zhijie, Nie Zhenhua, Tian Wei, Li Xu
Xu Xiangqian, Zhou Yan, Zhang Pengtao, Zhao Songbai, Pang Yuanlei, Zhou Decheng, Wang Xiuli, Wu Qiang, Zhang He, and Lang Yajun.
Safety of thermal cutting equipment
1.Scope
This document specifies the safety requirements and inspection methods for thermal cutting equipment, including design, manufacturing, production, transportation, installation, maintenance, and after-sales service.
All aspects of service.
This document applies to thermal cutting, marking, and scribing equipment that utilizes concentrated thermal energy to melt or burn materials, such as flame cutting and plasma arc cutting.
Cutting, laser cutting, etc.; suitable for open gantry structure, cantilever structure equipment, or cutting table structure equipment with rails.
This document does not include design standards for specific equipment, such as oxygen and gas hose standards, or electrical requirements for plasma power supplies. In thermal cutting equipment...
Most of the equipment used in thermal cutting has specific design and usage standards, and the risks associated with thermal cutting equipment are governed by these standards.
Regulation.
This document does not apply to handheld cutting equipment, or trolley-type and contour-type cutting equipment that are mounted on the workpiece and whose trajectory is constrained, relying on manual operation.
Small semi-automatic cutting equipment.
Except for location-indicating lasers, the risks posed by laser radiation are specified in GB/T 18490.1 and are not covered in this document.
This document applies only to equipment that combines thermal cutting with other processing techniques (such as grinding, drilling, milling, etc.).
Other processing techniques and their associated risks are governed by their respective standards.
2 Normative references
The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.
For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.
This document.
GB/T 3768 Acoustic sound pressure method for determining the sound power level and sound energy level of a noise source using a simplified measurement method with an envelope above the reflecting surface.
Law (GB/T 3768-2017, ISO 3746.2010, IDT)
GB/T 5226.1 Electrical Safety of Machinery – Electrical Equipment of Machinery – Part 1.General Technical Conditions (GB/T 5226.1-2019)
IEC 60204-1.2016, IDT
GB 9448 Safety of Welding and Cutting
GB/T 12265 Minimum spacing for preventing crushing of human body parts in mechanical safety (GB/T 12265-2021, ISO 13854.
2017, IDT)
GB/T 15579.1 Arc welding equipment - Part 1.Welding power sources (GB/T 15579.1-2024, IEC 60974-1.2021, IDT)
GB/T 15706 General Principles for Safety Design of Machinery. Risk Assessment and Risk Reduction (GB/T 15706-2012, ISO 12100.
2010, IDT)
GB/T 16754 Design principles for emergency stop functions of machinery (GB/T 16754-2021, ISO 13850.2015, IDT)
GB/T 16855.1 Safety-related components of mechanical safety control systems - Part 1.General design principles (GB/T 16855.1-
2018, ISO 13849-1.2015, IDT)
GB/T 17248.3 Noise emitted by acoustic machines and equipment shall be determined using approximate environmental correction at the working position and other specified locations.
The emitted sound pressure level (GB/T 17248.3-2018, ISO 11202.2010, IDT)
GB/T 17454.3 Mechanical safety varistor protection devices - Part 3.Varistors, varistor plates, varistor wires and similar devices
General guidelines for design and testing (GB/T 17454.3-2017, ISO 13856-3.2013, IDT)
GB/T 19436.2 Electrical Safety Equipment for Machinery - Part 2.Equipment Using Active Photoelectric Protective Devices (AOPDs)
Special requirements (GB/T 19436.2-2013, IEC 61496-2.2006, IDT)
......
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