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| Standard ID | GB/T 34924-2024 (GB/T34924-2024) | | Description (Translated English) | Guidelines for safety related risk assessment and risk reduction for low voltage equipment | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K09 | | Classification of International Standard | 29.020 | | Word Count Estimation | 34,314 | | Date of Issue | 2024-04-25 | | Date of Implementation | 2024-11-01 | | Older Standard (superseded by this standard) | GB/T 34924-2017 | | Drafting Organization | State Grid Zhejiang Province Power Co., Ltd. Jiaxing Power Supply Company, China Energy Construction Group Jiangsu Electric Power Design Institute Co., Ltd., Mechanical Industry Beijing Electrical Technology and Economic Research Institute, State Grid Beijing Electric Power Company, Xiamen Kaicheng Precision Machinery Co., Ltd., State Grid Zhejiang Electric Power Co., Ltd. Hangzhou Qiantang District Power Supply Company, State Grid Shaanxi Electric Power Co., Ltd., Siemens (China) Co., Ltd., Zhongtian Electric Technology Co., Ltd., Zhongshao Electric Co., Ltd., Guangdong South China Home Appliance Research Institute, China Electrical Equipment Industry Association, Guangdong Guangda Electric Co., Ltd., Hangzhou Zhijiang Switch Co., Ltd., Guangdong Zhengcheng Electric Technology Co., Ltd., Zhongshan Shenzhong Standard Quality Research Center, Nanyang Yitong Explosion-proof Electric Co., Ltd., Guangdong Yuedian Xinhui Power Generation Co., Ltd., Wenzhou Changtai Electric Co., Ltd. | | Administrative Organization | National Electrical Safety Standardization Technical Committee (SAC/TC 25) | | Proposing organization | National Electrical Safety Standardization Technical Committee (SAC/TC 25) | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration | | Standard ID | GB/T 34924-2017 (GB/T34924-2017) | | Description (Translated English) | Guidelines for safety related risk assessment and risk reduction for low voltage equipment | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K09 | | Classification of International Standard | 29.020 | | Word Count Estimation | 30,319 | | Date of Issue | 2017-11-01 | | Date of Implementation | 2018-05-01 | | Drafting Organization | Mechanical Industry Beijing Institute of Electrical Technology and Economy, Shanghai Electric Apparatus Research Institute (Group) Co., Ltd., Suzhou Electric Apparatus Research Institute Co., Ltd., Shanghai Electric Tools Research Institute (Group) Co., Ltd., China Quality Certification Center Shanghai Sub- Testing and Certification Group Co., Ltd., Nantong Acetate Co., Ltd., Guangzhou Baiyun Electric Equipment Co., Ltd., Shanghai University of Engineering Technology, Suzhou Teng Ran Electric Equipment Co., Ltd. | | Administrative Organization | National Electrical Safety Standardization Technical Committee (SAC/TC 25) | | Regulation (derived from) | National Standard Announcement 2017 No. 29 | | Proposing organization | National Electrical Safety Standardization Technical Committee (SAC/TC 25) | | Issuing agency(ies) | People's Republic of China General Administration of Quality Supervision, Inspection and Quarantine, China National Standardization Administration |
GB/T 34924-2024: Guidelines for safety risk assessment and risk reduction of low voltage electrical equipment
ICS 29:020
CCSK09
National Standards of People's Republic of China
Replaces GB/T 34924-2017
Safety risk assessment and
Risk Reduction Guide
(IEC GUIDE116:2018,IDT)
Released on 2024-04-25
2024-11-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
1 Scope and purpose 1
2 Normative references 1
3 Terms, definitions and abbreviations 2
4 Basic Principles 5
5 Determining the limiting conditions of low voltage electrical equipment 8
6 Hazard Identification 9
7 Risk Assessment10
8 Risk Assessment13
9 Risk reduction17
10 File 17
Appendix A (Normative) Safety factors for low voltage electrical equipment 19
Appendix B (Informative) Supporting Standards 24
Appendix C (informative) Examples of hazards, hazardous situations and hazardous events 25
Appendix D (Informative) Tools for applying this document 26
Reference 28
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 34924-2017 "Guidelines for safety risk assessment and risk reduction of low voltage electrical equipment":
Compared with:2017, in addition to structural adjustments and editorial changes, the main technical changes are as follows:
a) Chapter 1 has been changed to include “scope”, “purpose” and “exclusions and limitations” (see Chapter 1, Chapter 1 of the:2017 edition);
b) Added "3:1:7", "3:1:9", "3:1:11", "3:1:12", "3:1:13", "3:1:14", "3:1:24", "3:1:27", "3:1:28",
The definitions of terms such as "3:1:29" and "3:1:30" have been changed, and the definitions of terms such as "3:1:2", "3:1:3", "3:1:4", "3:1:5", "3:1:6", "3:1:15",
Definitions of terms such as “3:1:16”, “3:1:17”, “3:1:18”, “3:1:20”, “3:1:23” and “3:1:25” (see 3:1);
c) Added abbreviations (see 3:2);
d) Increased risk of unacceptable repetitive iterative processes (see Figure 2);
e) Added consideration of “limitation of use” (see Chapter 5);
f) Added the reason of “protective measures failed to work or did not provide effective protection” (see 8:2:3);
g) Added “information on the use of residual risks” (see 8:3);
h) Added “security-related information security risks” (see A:8):
This document is equivalent to IEC GUIDE116:2018 "Guidelines for safety risk assessment and risk reduction of low-voltage electrical equipment", file type
Adjusted from IEC guidelines to our national standards:
The following minimal editorial changes were made to this document:
--- Change the name of the standard to "Guidelines for Safety Risk Assessment and Risk Reduction of Low Voltage Electrical Equipment":
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 Electrical Safety Standardization Technical Committee (SAC/TC25):
This document was drafted by: Jiaxing Power Supply Company of State Grid Zhejiang Electric Power Co:, Ltd:, China Energy Engineering Group Jiangsu Electric Power Design Institute
Co:, Ltd:, Beijing Institute of Electrical Engineering and Economics of Machinery Industry, State Grid Beijing Electric Power Company, Xiamen Kaicheng Precision Machinery Co:, Ltd:, State Grid Zhejiang
Jiangxi Electric Power Co:, Ltd: Hangzhou Qiantang District Power Supply Company, State Grid Shaanxi Electric Power Co:, Ltd:, Siemens (China) Co:, Ltd:, Zhongtian Electric
Gas Technology Co:, Ltd:, Zhongshao Electric Co:, Ltd:, Guangdong South China Household Appliance Research Institute, China Electrical Equipment Industry Association, Guangdong Guangda Electric Co:, Ltd:
Co:, Ltd:, Hangzhou Zhijiang Switch Co:, Ltd:, Guangdong Zhengcheng Electric Technology Co:, Ltd:, Zhongshan Shenzhong Standard Quality Research Center, Nan
Yangshi Yitong Explosion-proof Electrical Co:, Ltd:, Guangdong Yudean Xinhui Power Generation Co:, Ltd:, Wenzhou Changtai Electric Co:, Ltd:, Jinbei Electric Hengyang Cable
Co:, Ltd:, Guang'an Electric Testing Center (Guangdong) Co:, Ltd:, Laiwu Luneng Kaiyuan Group Electric Co:, Ltd:, Guangzhou Changchuan Technology Co:, Ltd:
Co:, Ltd:, Zhuhai Wharton Electric Co:, Ltd:, and Xingsheng Electric Co:, Ltd:
The main drafters of this document are: Ma Hong, Qian Guoliang, Yin Chao, Li Bin, Feng Kai, Jin Jianhua, Li Lipeng, Ma Jiafei, Fang Xiaoyan, Zhou Yongjun, Zeng Yanhong,
Yang Sihua, Lai Jing, Yu Liangzhong, Zhong Chao, Chen Yishuan, Chen Weiliang, Zong Lincai, Liang Xin, Lu Yongjun, Xia Junshan, Chen Ye, Li Xu, Feng Yuhua, Zheng Chun,
Gong Liwu, Su Jiabin, Zhang Zhe, Fan Ying, Fang Zhongfang, Hu Shaozhong, Fu Jin, Liang Zijun, Xia Xiangyang, Li Kang, Jia Dongqiang, Xia Wenhong:
The previous versions of this document and the documents it replaces are as follows:
---GB/T 34924-2017 was first released in:2017;
---This is the first revision:
Safety risk assessment and
Risk Reduction Guide
1 Scope and purpose
1:1 Scope
This document provides guidance on achieving safety in low voltage electrical equipment based on ISO /IEC Guide 51: These guidelines include risk assessment,
Combines knowledge and experience related to the design, use, incidents, accidents and injuries of low-voltage electrical equipment to assess relevant stages of the equipment life cycle
Risks (see Chapter 6), and the basic principles for implementing risk reduction measures: Technical committees may wish to use this document as appropriate:
This document provides ISO /IEC Guide 50, ISO /IEC Guide 51 and ISO /IEC Guide 71 for implementing risk assessment:
Additional guidance information for hazard identification, risk estimation and risk assessment (including risk comparison) and necessary risk reduction procedures are established:
The hazards covered by this document include potential harm to persons, property or livestock: Technical committees are not required to use the structure of this document:
This document also includes equipment documentation requirements that address adequate information for safe use of the equipment:
1:2 Purpose
This document is intended to provide technical committees with the documents required for making safety decisions and verifying risk assessments for low voltage electrical equipment:
guide:
This document is applicable to all types of electrical equipment with AC voltage of 1000V and below and DC voltage of 1500V and below:
The voltage at an electrical input or output other than the voltage that may appear inside the equipment:
Appendix A gives the basic health and safety factors applicable to low voltage electrical equipment:
The reference documents for risk assessment are given in Annex B: Hazard related examples are given in Annex C: The record of the technical committee's self-assessment is given in Annex D:
1:3 Exclusions and limitations
This document does not apply to essential parts of equipment, electrical systems or installations, for which the risk assessment is largely dependent on the
For electrical equipment that is intended to be incorporated into other electrical equipment and for which a risk assessment can be performed based on this document:
Components, usually require further assessment of the safety of the way such components are incorporated:
Note 1: The exclusion scope of basic components should be correctly understood and should not be extended to lamps, starters, fuses, household switches, electrical device components, etc:
Even components that are often used together with other electrical equipment and must be correctly installed to achieve their function are within the scope of application of this document:
Note 2: The risk reduction measures taken by product users depend on the legal provisions of each country, especially the requirements of the occupational health and safety system:
This document is not intended for safety certification: When the technical content of the product standard cannot cover all potential hazards of the equipment in the field, especially
When new hazards may arise with emerging technologies, it is encouraged to add safety clauses related to risk assessment to product standards:
If the risk assessment addresses aspects that are not directly related to health and safety, such as environmental protection, energy consumption, climate change, etc:, then health and safety
Risk reduction of safety related risks, especially risk reduction for personnel, will take precedence over other aspects: Other aspects can be defined by regulations:
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document:
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document:
ISO /IEC Guide 51:2014 Safety Aspects Guide for writing standards that consider safety aspects
......
GB/T 34924-2017
Guidelines for safety related risk assessment and risk reduction for low voltage equipment
ICS 29.020
K09
National Standards of People's Republic of China
Low voltage electrical equipment safety risk assessment and risk reduction
guide
(IEC Guide116.2010, IDT)
Posted.2017-11-01
2018-05-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Directory
Preface Ⅰ
Introduction Ⅱ
1 range 1
2 Normative references 1
3 Terms and definitions 1
4 basic principles 4
4.1 Safety Integration Principle 4
4.2 Basic Concepts 5
4.3 Risk Assessment Information 6
5 to determine the limitations of low voltage electrical equipment 7
6 Hazard Identification 7
7 Risk Estimation 8
7.1 General 8
7.2 Risk Factors 8
7.3 Factors to be considered in risk estimation 12
Risk Assessment 12
8.1 General 12
8.2 Factors to be considered in risk assessment 13
8.3 Eliminating or reducing risk through protective measures 15
8.4 Risk Comparison 16
Risk reduction 16
10 file 17
Appendix A (Normative) Low-voltage electrical equipment safety factor 18
Appendix B (informative) support standards 22
Appendix C (Informative) Examples of Dangerous, Dangerous and Hazardous Events 23
Appendix D (informative) tools to apply this document 24
References 26
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard uses the translation method identical with IEC Guide116.2010 "Low Voltage Electrical Equipment Safety Risk Assessment and Risk Reduction Guide."
The documents of our country that are consistent with the corresponding international documents that are normative references in this standard are as follows.
--- GB/T 16499-2017 preparation of electrical and electronic safety publications and basic safety publications and multi-professional safety of the public
Application Guidelines (IEC Guide104.2010, NEQ)
--- Drafting of specific content in GB/T 20002.2-2008 standard Part 2. Requirements of the elderly and disabled (ISO /IEC
Guide71.2001, IDT)
--- Drafting of specific content in GB/T 20002.4-2015 standard Part 4. Content related to security in standards (ISO /IEC
Guide 51.2014, MOD)
This standard is proposed and managed by the National Electrical Safety Standardization Technical Committee (SAC/TC25).
This standard was drafted. Machinery Industry Beijing Institute of Electrical Technology and Economy, Shanghai Electric Institute of Science (Group) Co., Ltd., Suzhou
Electric Apparatus Research Institute Co., Ltd., Shanghai Electric Tools Research Institute (Group) Co., Ltd., China Quality Certification Center Shanghai Branch,
Huatech Testing and Certification Group Co., Ltd., Nantong Acetate Co., Ltd., Guangzhou Baiyun Electric Equipment Co., Ltd., Shanghai Engineering
Technical University, Suzhou Teng Ran Electric Equipment Co., Ltd.
The main drafters of this standard.Fang Xiaoyan, Ji Hui Yu, Li Feng, Ma Hong, Pan Shunfang, Zeng Yanhong, Li Jie, leather, Wu Wei, Zhang Liang,
Zhang Lixin, Wang Yi, Huang Lixin, Zhang Mingjun.
introduction
This standard is intended for low-voltage electrical equipment safety risk assessment and risk reduction.
This standard is based on ISO /IEC Guide 51, based on GB/T 20002.1-2008, GB/T 20002.2-2008 based on the proposed
Detailed operational information on risk assessment and risk reduction provides guidance on risk assessment at all stages of the life cycle of low voltage electrical equipment.
This standard may provide guidance for technical committees to consider risk assessment when developing product safety standards. This standard also applies to the current standard
In the new product design is not involved in the design.
Low voltage electrical equipment safety risk assessment and risk reduction
guide
1 Scope
This standard is based on ISO /IEC Guide 51, proposed the overall risk assessment principles, designed to achieve low-voltage electrical equipment safety. According to
Low-voltage electrical equipment related to the design, use, accident, incident and injury acquired knowledge and experience, in accordance with the provisions of Chapter 6, assessment equipment
Risk at all stages of the life cycle and implement risk reduction measures. Technical Committee should be appropriate to adopt this standard.
This standard gives ISO /IEC Guide 51, GB/T 20002.1-2008 and GB/T 20002.2-2008 additional guidance,
To implement a risk assessment. This standard specifies procedures for identifying hazards, estimating and evaluating risks (including risk comparisons) and reducing the necessary risk.
The risks involved in this standard include the potential harm to people, property and livestock. The technical committee does not have to adopt the structure of this standard.
This standard is intended for technical committees in the development of low-voltage electrical equipment safety decision-making, and the formation of the risk assessment has been implemented a variety of supporting documents
When to provide guidance. When manufacturers anticipate the expected use, they can evaluate parts that are not used separately.
This standard applies to AC voltage 1000V and below, DC voltage 1500V and below all types of electrical equipment. For internal students
Into the reach, the voltage is higher than the AC 1000V, DC 1500V low-voltage electrical equipment also belong to the scope of this standard.
Product Standards Requirements The equipment instructions should contain the necessary information for the safe use of the equipment.
This standard does not involve distribution of electrical, or electrical systems, or parts used in machinery, the risk of these parts depends largely on
Use and assembly in electrical systems or installations.
Note The protective measures taken by the product user depend on the legal requirements of the country, in particular the occupational health and safety system.
This standard does not apply to safety certification. When the product standard technical content can not cover all the potential risks in the field of equipment should be produced
Product standards to increase risk assessment related to the security provisions.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 20002.1-2008 standard drafting specific content Part 1. Child safety (ISO /IEC Guide50.2002,
IDT)
ISO /IEC Guide51.1999 standard safety considerations in the preparation of guidelines (Safetyaspects-Guidelinesfortheir
inclusioninstandards
Guidelines for the preparation of guidelines for elders and persons with disabilities in the ISO /IEC Guide 71 guidelines (Guidelinesforstandardsdevel-
operstoaddresstheneedsofolderpersonsandpersonswithdisabilities)
IEC Guide104.2010 Guidelines for the preparation of safety publications and the application of basic safety publications and multi-disciplinary safety publications
(Thepreparationofsafetypublicationsandtheuseofbasicsafetypublicationsandgroupsafetypubli-
cations
3 Terms and definitions
The following terms and definitions apply to this document.
......
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