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GB/T 30174-2025: Safety of machinery - Terms
Status: Valid GB/T 30174: Evolution and historical versions
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Safety of machinery - Terms
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GB/T 30174-2025
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| GB/T 30174-2013 | English | 629 |
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Safety of machinery -- Terms
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GB/T 30174-2013
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Basic data | Standard ID | GB/T 30174-2025 (GB/T30174-2025) | | Description (Translated English) | Safety of machinery - Terms | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J09 | | Classification of International Standard | 13.110 | | Word Count Estimation | 38,381 | | Date of Issue | 2025-08-29 | | Date of Implementation | 2025-08-29 | | Older Standard (superseded by this standard) | GB/T 30174-2013 | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration | GB/T 30174-2025: Safety of machinery - Terms---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/GBT30174-2025
ICS 13.110
CCSJ09
National Standard of the People's Republic of China
Replaces GB/T 30174-2013
Machinery Safety Terminology
Released on August 29, 2025
Implementation on August 29, 2025
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
Introduction V
1 Scope 1
2 Normative references 1
3 Basic Terminology 1
4 Safety device terminology 5
5 Safety parameter terminology 8
6 Safety Control System Terminology 11
7 Smart Security Terminology 15
8 Hazardous Energy Control Terminology 16
9 Safety and Health Terms 17
10 Other terms 19
Reference 21
Index 22
Preface
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
This document replaces GB/T 30174-2013 “Terms for Safety of Machinery”. Compared with GB/T 30174-2013,
In addition to the logical changes, the main technical changes are as follows.
--- Deleted the terms "main safety function", "auxiliary safety function" and "dangerous machine function" (see.2013 edition 2.29~2.31);
--- Deleted the terms "Class A standards", "Class B standards", "Class B1 standards", "Class B2 standards" and "Class C standards" (see.2013 edition)
2.49~2.51);
--- Change the terms "simultaneous operation" and "synchronous operation" to "simultaneous operation" and "synchronous operation" (see 3.42, 3.43,.2013 edition 2.45,
2.46);
--- Deleted the term "maintenance rate" (see 4.11 of the.2013 edition);
--- Changed the definition of the term "response time" (see 5.7, 4.16 of the.2013 edition);
---Change the term "mean time to dangerous failure" to "mean time between dangerous failures" and modify its abbreviation to "MTTFD"
(See 6.11,.2013 edition 4.10);
--- Added the term "mean time between failures" (see 6.12);
--- Added the term "average number of cycles to dangerous failure" (see 6.13);
--- Change the term "system failure" to "systemic failure" (see 6.18, 6.5 of the.2013 edition);
--- Added Chapter 7 "Intelligent Safety Terminology" (see Chapter 7);
--- Added Chapter 8 "Terms for Control of Hazardous Energy (see Chapter 8)";
--- Change the term “hazardous substance” to “hazardous substance” (see 9.2, 5.2 of the.2013 edition);
--- Added the term "local exhaust ventilation (LEV) system" and its definition (see 10.11).
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document is proposed and coordinated by the National Technical Committee for Machinery Safety Standardization (SAC/TC208).
The main drafting units of this document are. Zhejiang Wujing Machinery Manufacturing Co., Ltd., Kunshan Taigong Precision Machinery Co., Ltd., Suzhou Lite-On Technology Co., Ltd.
Co., Ltd., Zhejiang Shengxiang Aviation Technology Co., Ltd., Liyang Elevator Engineering Co., Ltd., Zhejiang Xingyan Electrical Equipment Co., Ltd., China Machinery Research Institute
Standards and Technology Research Institute (Beijing) Co., Ltd., Jinhua Jingyan Electromechanical Co., Ltd., Ningbo Zhengzhi Technology Co., Ltd., Zhejiang Weihuan Machinery
Manufacturing Co., Ltd., Jinan Casting and Forging Inspection and Testing Technology Co., Ltd., Ningbo Weicheng Technology Co., Ltd., Nanjing Forestry University,
Lantu Automobile Technology Co., Ltd., China Railway Construction Bridge Engineering Bureau Group Construction Assembly Technology Co., Ltd., Sichuan Shuxing Youchuang Safety Technology Co., Ltd.
Company, Aneng Chongqing Construction Development Co., Ltd., Zhejiang Baocheng Machinery Technology Co., Ltd., Ningbo Kawahara Seiko Machinery Co., Ltd., Nanjing University of Science and Technology
Anhui Huili Equipment Technology Co., Ltd., Nan'an China Machinery Standardization Research Institute Co., Ltd., Wuhan Pudi Vacuum Technology Co., Ltd., Jonah
CNC Equipment (Jiangsu) Co., Ltd., China Railway Construction Bridge Engineering Bureau Group Electrification Engineering Co., Ltd., Zhejiang Chuangge Technology Co., Ltd.
Co., Ltd., China Jiliang University Modern Science and Technology College, Tianjin Senpujie Electronics Co., Ltd., Jianyi Precision Equipment Jiangsu Co., Ltd., Ningbo Shuoluo Machinery
Electrical Equipment Co., Ltd., Shaoxing Yuzhimeng Food Co., Ltd., Jinan Yuechuang Hydraulic Machinery Manufacturing Co., Ltd., Hebei Daheng Heavy Machinery Co., Ltd.
Company, Zhejiang Wanneng Spring Machinery Co., Ltd., Shandong Runyijin New Materials Technology Co., Ltd., Yiwu Quanyi Mould Industry Development Co., Ltd.
Co., Ltd., Qihe Huite Machinery Co., Ltd., Jiangsu Deda Petrochemical Technology Co., Ltd., Changzhou Aibang Machinery Technology Co., Ltd., Shandong Tangchen Machinery
Mechanical Equipment Co., Ltd., Sike Intelligent Hardware (Shaoxing) Co., Ltd., Jinan Dapeng Mechanical Equipment Co., Ltd., Shenzhen Jingye Traffic Equipment Co., Ltd.
Co., Ltd., Xiamen Fengyuan Robotics Co., Ltd., TOMRA Environmental Technology (Xiamen) Co., Ltd., Shandong Hongguan Vehicle Co., Ltd., Zhejiang Zhaoshan Machinery
Electric Co., Ltd., Shandong Qihao New Color Aluminum Co., Ltd., Guangzhou Tongfa Intelligent Equipment Co., Ltd., Shandong Mikos Machinery Equipment Co., Ltd.
Company, Zhongshan Qianghui Metal Products Co., Ltd., Jinan Lianhezhongwei Construction Technology Co., Ltd., and Jiangsu Lianshengxin Technology Co., Ltd.
The main drafters of this document are. Liu Zhiyong, Liu Guoxiang, Liu Bing, Guo Yong, Wang Qiuli, Zhang Zaichun, Yan Guoliang, Chen Yanqing, Ma Jianming, Yu Weihuan,
Lu Jun, Dai Wenjie, Ju Ronghua, Chen Guoliang, Xiao Feizhi, Qin Peijun, Liu Xiaopeng, Ruan Xuewei, Yan Fengze, Ju Likai, Zhu Bin, Ma Yan, Liu Chao, Li Qin,
Yuan Yazhou, Fang Yijun, Zhang Pengyue, Zhu Peng, Fang Baling, Miao Maolin, Zhang Pengkun, Zhang Dongquan, Li Lei, Wang Hongxia, Yu Qiang, Shang Wei, Jin Chenggao, Zhao Lei,
Li Jiping, Cheng Hongbing, Shu Yiheng, Liu Ruigang, Lu Huiliang, Shen Qinfeng, Zhang Lepeng, Zhu Yongyang, Zhou Cheng, Xie Yunbo, Zhang Yong, Wei Zhangmiao, Qi Haolong,
Zhu Weifeng, Liang Jimin, Feng Hanfei, Lin Jianxin, Zhao Hu, Zhou Yanwen, Liu Yang, Chen Hui, and Zhang Xiaofei.
This document was first published as GB/T 30174-2013 in.2013, and this is the first revision.
introduction
The safety standard system in the machinery field consists of the following categories of standards.
--- Category A standards (basic safety standards) give basic concepts, design principles and general characteristics applicable to all machinery.
--- Category B standards (general safety standards) involve a safety feature of machinery or a type of safety device with a wide range of applications.
● Category B1, safety features (such as safety distance, surface temperature, noise) standards;
● Category B2, safety device (such as emergency stop device, interlock device, pressure sensitive device, protective device) standard.
---Category C standards (machinery product safety standards) specify detailed safety requirements for a specific machine or group of machines.
According to GB/T 15706, this document belongs to Class A standard.
The purpose of this document is to standardize the basic and common terminology in the field of machinery safety and to make the terminology of Class A, Class B and Class C standards consistent.
Be consistent.
Machinery Safety Terminology
1 Scope
This document defines fundamental, common terms and definitions within the field of machinery safety.
This document is applicable to safety terms used in production, scientific research, teaching, and the formulation and revision of relevant standards in the machinery industry.
2 Normative references
This document has no normative references.
3 Basic Terminology
3.1
machinery
machine
A combination of several parts and components connected together and having a specific application purpose, wherein at least one part or component is movable, and
Equipped with or scheduled to be equipped with a power system.
NOTE The term "machine" also includes several machines arranged and controlled so as to perform their functions as a complete machine for the same application.
combination.
3.2
reliability
A machine (3.1), a part of a machine, or an apparatus that performs its specified function under specified conditions and within a specified period without malfunctioning
ability.
3.3
Maintainability
If the prescribed practices are followed and necessary measures (maintenance) are taken using the prescribed methods, the machine can be kept in the intended use condition.
a state in which it can perform its functions or the ability to recover to such a state.
3.4
usability
A feature or characteristic of a machine (3.1) that makes its function easy to understand and thus makes it easy to use.
ability.
3.5
harm
Physical damage or harm to health.
3.6
hazard
Potential source of harm.
NOTE 1 The word “hazard” is sufficient to qualify the source of harm (e.g. mechanical hazards and electrical hazards), or the nature of the potential harm (e.g. electric shock hazards, cutting hazards).
risk, poisoning hazard and fire hazard).
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