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GB/T 41108.2-2021: Safety of machinery - Safety requirements for interlocking devices - Part 2: Interlocking devices with guard-locking
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| GB/T 41108.2-2021 | English | 269 |
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Safety of machinery - Safety requirements for interlocking devices - Part 2: Interlocking devices with guard-locking
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GB/T 41108.2-2021
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Basic data | Standard ID | GB/T 41108.2-2021 (GB/T41108.2-2021) | | Description (Translated English) | Safety of machinery - Safety requirements for interlocking devices - Part 2: Interlocking devices with guard-locking | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J09 | | Word Count Estimation | 13,185 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 41108.2-2021: Safety of machinery - Safety requirements for interlocking devices - Part 2: Interlocking devices with guard-locking
---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 2: Interlocking devices with guard-locking
ICS 13:110
CCSJ09
National Standards of People's Republic of China
Safety requirements for mechanical safety interlocks
Part 2: Interlocks with guard locking
Published on 2021-12-31
2022-07-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
directory
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Requirements 2
4:1 General requirements 2
4:2 Structural Requirements 2
4:3 Safety performance requirements 3
4:4 Minimize the possibility of deprecation5
4:5 Mechanical strength5
4:6 Mechanical life6
4:7 Enclosure protection class 6
4:8 Electromagnetic Compatibility (EMC) 6
5 Usage Information 6
5:1 General requirements 6
5:2 Enclosure identification 6
5:3 Instruction Manual 6
Reference 8
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 2 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 Safety Technology Co:, Ltd:, Fujian Jiayou Tea Machinery Intelligent Technology Co:, Ltd:,
Anhui Hengjun Powder Metallurgy Technology Co:, Ltd:, Xiamen Jiechuang Automation Technology Co:, Ltd:, Shenzhen Guoji Instrument Co:, Ltd:, Nanjing Li
University of Technology, Sichuan Shuxing Youchuang Safety Technology Co:, Ltd:, Zhangzhou Kehui Special Vehicle Manufacturing Co:, Ltd:, Jinhua Baolin Technology Co:, Ltd:
Company, Guangdong Liying Intelligent Technology Co:, Ltd:, Anson Electric (Shanghai) Co:, Ltd:, Pilz Electronics (Changzhou) Co:, Ltd:, Zhongji Production
Force Promotion Center, Foshan Shunde Wanyi Household Products Co:, Ltd:, Jining Keli Optoelectronics Industry Co:, Ltd:, Aohuang Testing Technology Service
Services (Shanghai) Co:, Ltd:, Leuze Electronic Trading (Shenzhen) Co:, Ltd:, Fujian Minxuan Technology Co:, Ltd:, Nanjing Forestry University, Qinghai
Daodingxin Industrial Safety Equipment Co:, Ltd:, Suzhou Institute of Quality and Standardization, Shanghai Taifangwei Safety Technology (Beijing) Co:, Ltd:, China Automobile Certification
Center Co:, Ltd:, Suzhou Metrology and Testing Institute, Xi'an Kaiyijin Electronic Technology Co:, Ltd:, Shaanxi Guohongfu Testing Technology Co:, Ltd:, Guangdong
Yingde Digital Technology Co:, Ltd:, Jiangsu Guanfeng Intelligent Technology Co:, Ltd:, Guangdong Qinghe Technology Co:, Ltd:, Xi'an Jiuxinchang Internet of Things Technology
Co:, Ltd:, Guangdong Kangxin New Materials Co:, Ltd:, Zaozhuang Huitian Meiya Thermal Insulation and Energy Saving Building Materials Co:, Ltd:, Guangdong Quanwei Industrial Technology Co:, Ltd:
Company, Zhejiang Rujing Technology Co:, Ltd:, Quanzhou Standardization Association, Shaanxi Xiejia Yaguang Software Co:, Ltd:, Liming Vocational University, Yiwu City
Quan Xian Mould Co:, Ltd:
The main drafters of this document: Yao Jiayi, Chen Jiayou, Yuan Changsong, Liang Sichao, Guo Bing, Lu Xiaoguang, Qin Peijun, Jiang Tao, Wu Jianwei, Li Jiatao,
Li Qin, Chen Miaoyong, Curie Kai, Li Haiming, Huang Fei, Mai Bangguo, He Mingli, Zhang Shuo, Zhu Bin, Lun Hengxiao, Xu Guohui, Chen Zhuoxian, Fu Huiqing, Li Zhong,
Huang Zhijiong, Yan Guolin, Song Guangsheng, Wang Minghua, Cheng Hongbing, Song Xiaoning, Zheng Huating, Zhang Zhijin, Xiao Benchong, Ju Ronghua, Liu Zhiyong, Chen Hongzhi, Lin Hongsong,
Yang Lingling, Wang Zhewei, Dong Quanxian, 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 2: Interlocks with guard locking
1 Scope
This document specifies the requirements for technical requirements and use information for interlocks with guard locking:
This document applies to interlocks with electromechanical guard locking or electromagnetic guard locking:
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 4208-2017 Protection class of enclosure (IP code)
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 15706-2012 General Principles of Mechanical Safety Design Risk Assessment and Risk Reduction
GB/T 16855:1-2018 Safety-related parts of machinery safety control systems - Part 1: General rules for design
GB/T 16855:2-2015 Safety-related components of machinery safety control systems - Part 2: Confirmation
GB/T 18831-2017 Design and selection principles of interlocking devices related to mechanical safety and protective devices
GB 28526-2012 Functional safety of electrical, electronic and programmable electronic control systems related to safety of machinery and electrical safety
GB/T 41108:1 Safety requirements for mechanical safety interlocks - Part 1: Direct disconnection of position switches
3 Terms and Definitions
The terms and definitions defined in GB/T 15706, GB/T 18831 and GB/T 41108:1 and the following terms and definitions apply to this document:
3:1
interlockingdeviceswithguard-locking
An interlock device that keeps the switching element locked by means of a guard locking device:
3:2
guard-lockingdevice
A device intended for locking the guard in the closed position and connected to the control system:
[Source: see GB/T 18831-2017, 3:4]
3:3
electromechanicalguard-lockingdevice
Capable of holding movable guards in the closed position by actuating rigid elements such as latches, latches, etc:, by elastic or electromagnetic force, with position
Electromechanical devices for monitoring functions:
Note 1: The electromechanical guard locking device achieves its safety function by:
---Keep locked by elastic force (spring driven), unlocked by electromagnetic action;
---Maintain the locked state by electromagnetic action and unlock by elastic force (spring drive):
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