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GB/T 41108.1-2021: Safety of machinery - Safety requirements for interlocking devices - Part 1: Direct opening position switches
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Safety of machinery - Safety requirements for interlocking devices - Part 1: Direct opening position switches
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GB/T 41108.1-2021
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Basic data | Standard ID | GB/T 41108.1-2021 (GB/T41108.1-2021) | | Description (Translated English) | Safety of machinery - Safety requirements for interlocking devices - Part 1: Direct opening position switches | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J09 | | Word Count Estimation | 10,122 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 41108.1-2021: Safety of machinery - Safety requirements for interlocking devices - Part 1: Direct opening position switches
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Safety of machinery -- Safety requirements for interlocking devices -- Part 1: Direct opening position switches
ICS 13:110
CCSJ09
National Standards of People's Republic of China
Safety requirements for mechanical safety interlocks
Part 1: Direct disconnect position switch
Published on 2021-12-31
2022-07-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
directory
Preface I
Introduction II
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Requirement 1
4:1 General requirements1
4:2 Structural Requirements 1
4:3 Safety performance requirements 2
4:4 Electromagnetic Compatibility (EMC) 3
4:5 Additional requirements for Type 2 interlocks for high demand or continuous mode 3
5 Usage Information 4
5:1 General requirements 4
5:2 Enclosure identification 4
5:3 Instruction Manual 4
Reference 6
foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents"
drafted:
This document is part 1 of GB/T 41108 "Safety Requirements for Mechanical Safety Interlocks": GB/T 41108 has been released
The following parts:
--- Part 1: Direct disconnection of position switches;
--- Part 2: Interlocks with guard locking;
--- Part 3: Interlocking devices and systems for retaining keys:
Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents:
This document is proposed and managed by the National Machinery Safety Standardization Technical Committee (SAC/TC208):
This document is drafted by: Suzhou Angao Intelligent Security Technology Co:, Ltd:, Shenzhen Guoji Instrument Co:, Ltd:, Anhui Fangyuan Plastic Co:, Ltd:
Ren Company, Xiamen Mitre Automation Equipment Co:, Ltd:, Hangzhou Leijia Electromechanical Co:, Ltd:, Anshi Neng Electric Appliances (Shanghai) Co:, Ltd:, Sichuan Shuxing
Youchuang Safety Technology Co:, Ltd:, Foshan Shunde Wanyi Household Products Co:, Ltd:, Jinhua Baolin Technology Co:, Ltd:, Guangdong Lee
Ying Intelligent Technology Co:, Ltd:, China Machinery Productivity Promotion Center, Pilz Electronics (Changzhou) Co:, Ltd:, Suzhou Institute of Quality and Standardization, Aohuang
Testing Technology Service (Shanghai) Co:, Ltd:, Nanjing University of Science and Technology, Qingdao Dingxin Industrial Safety Equipment Co:, Ltd:, Guangdong Xuanyu Machinery Technology Co:, Ltd:
Co:, Ltd:, Nanjing Forestry University, China Automobile Certification Center Co:, Ltd:, Xi'an Jiuxinchang Internet of Things Technology Co:, Ltd:, Fujian Minxuan Technology Co:, Ltd:
Co:, Ltd:, Shaanxi Xiejia Yaguang Software Co:, Ltd:, Foshan Binhong Equipment Co:, Ltd:, Guangdong Kangxin New Materials Co:, Ltd:, Shangtai Fangwei
Safety Technology (Beijing) Co:, Ltd:, Jiangsu Special Equipment Safety Supervision and Inspection Research Institute, Guangdong Yingde Digital Technology Co:, Ltd:, Xi'an Kai
Yijin Electronic Technology Co:, Ltd:, Jiangsu Guanfeng Intelligent Technology Co:, Ltd:, Guangdong Qinghe Technology Co:, Ltd:, Shaanxi Guohongfu Detection Technology Co:, Ltd:
Co:, Ltd:, Fujian Sian Intelligent Technology Development Co:, Ltd:, Zhejiang Rujing Technology Co:, Ltd:, Pinghu Liting Machinery Manufacturing Co:, Ltd:, Zaozhuang City
Hengxiang Paper Products Co:, Ltd:, Guangdong Quanwei Industrial Technology Co:, Ltd:, Yiwu Quanxian Mould Co:, Ltd:, Quanzhou Standardization Association:
The main drafters of this document: Chen Zhuoxian, Qu Zhong, Zhao Bin, Guo Bing, Cheng Shunyu, Xiao Pengcheng, Pan Guogang, Lu Xiaoguang, Qin Peijun, Curie Kai,
Chen Miaoyong, Liu Zhiyong, Feng Shenghui, Xu Wenchao, Zhang Shuo, Huang Fei, Fu Huiqing, Li Tao, Li Shaozhong, Wu Xiangliang, Li Qin, Shen Junjie, Zhu Bin, Li Zhong,
Yan Junjun, Zhang Xin, Guirenbing, Ju Ronghua, Zhang Zhijin, Cheng Hongbing, Song Xiaoning, Xiang Mei, Lin Hongsong, Li Ting, Li Liyan, Li Jian, Xiao Benchong,
Wang Zhewei, Chen Hongzhi, Yang Lingling, Zheng Huating, Dong Quanxian, Hou Hongying, Zhang Xiaofei:
Introduction
The safety standard system in the field of machinery consists of the following types of standards:
--- Type A standard (basic safety standard), giving basic concepts, design principles and general characteristics applicable to all machinery;
--- Class B standard (general safety standard), involving a safety feature in machinery or a class of safety devices with a wide range of use:
● Class B1, standard for safety features (such as safety distance, surface temperature, noise);
● Class B2, safety devices (such as two-hand control devices, interlocking devices, pressure-sensitive devices, protective devices) standards:
--- Class C standard (machine product safety standard), a standard that specifies detailed safety requirements for a specific machine or a group of machines:
According to GB/T 15706, this document belongs to the category B2 standard:
This document is particularly relevant to the following stakeholders related to machinery safety:
--- machine manufacturer;
--- Health and Safety Agency:
Other stakeholders affected by the level of machinery safety are:
--- machine users;
--- the owner of the machine;
--- service providers;
--- Consumers (for machinery intended for use by consumers):
All of the above-mentioned stakeholders may have participated in the drafting of this document:
In addition, this document is intended for standardization bodies drafting Type C standards:
The requirements specified in this document may be supplemented or modified by Type C standards:
For machines that are within the scope of the C-type standard and have been designed and manufactured in accordance with the C-type standard, the requirements in the C-type standard are preferred:
Interlocking device is a type of protective device commonly used in mechanical safety protection, mainly used to prevent dangerous machine functions under specific conditions (usually referring to
as long as the guard is not closed) to avoid personal injury:
GB/T 41108 consists of three parts:
--- Part 1: Direct disconnection of the position switch: Direct disconnection of the position switch is an interlocking device widely used at home and abroad:
Products, such as sliding safety doors for CNC machine tools, disable dangerous machine functions through position switches when the door is opened:
--- Part 2: Interlocks with guard locking: The moving parts of mechanical equipment cannot stop in a short time due to their inertia,
It is necessary to add the safety function of protective locking to the interlocking device, which is usually realized by electromagnetic force to ensure the movement of the machine:
Protective devices such as safety doors controlled by interlocking devices can only be opened after the components are stopped:
--- Part 3: Interlocking devices and systems for retaining keys: The trapped key interlock device is a new type of interlock device that has appeared in recent years:
Usually used in large equipment or production lines, especially suitable for preventing other personnel from accidentally starting the machine during equipment maintenance and overhaul:
danger to life:
Safety requirements for mechanical safety interlocks
Part 1: Direct disconnect position switch
1 Scope
This document specifies requirements and usage information for direct disconnect position switches:
This document applies to direct-off position switches for standard or minor loads:
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document:
GB/T 14048:5-2017 Low-voltage switchgear and control equipment - Part 5-1: Control circuit electrical appliances and switching elements electromechanical
control circuit electrical appliances
GB/T 15706 General Principles of Mechanical Safety Design Risk Assessment and Risk Reduction
GB/T 18831 Design and selection principles of interlocks related to mechanical safety and protective devices
3 Terms and Definitions
The terms and definitions defined in GB/T 15706 and GB/T 18831 and the following terms and definitions apply to this document:
3:1
Direct opening position switch directopeningpositionswitch
Has one or more normally closed contact elements for the realization of the safety function, and directly realizes the position of the contact breaking through the non-elastic part
switch:
Note: The direct disconnection position switch belongs to type 1 interlocking device or type 2 interlocking device, the difference lies in whether its actuator is coded, see GB/T 18831-2017:
3:2
meancyclestodangerousfailure
B10D
Average number of cycles until 10% of components fail dangerously:
Note: Components can be mechanical components, electromechanical components, pneumatic components or hydraulic components:
4 Requirements
4:1 General requirements
The direct disconnection position switch shall meet the requirements of Appendix K in GB/T 14048:5-2017:
4:2 Structural Requirements
In the direct-off position switch, the parts that perform direct mechanical action to disconnect the contacts shall be of rigid structure:
Figures 1 and 2 show the structure examples of the direct-off position switches of the type 1 interlocking device and the type 2 interlocking device, respectively:
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