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GB/T 26802.2-2017: Industrial control computer system -- General specification -- Part 2: Safety requirements for industrial control computer
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Industrial control computer system -- General specification -- Part 2: Safety requirements for industrial control computer
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GB/T 26802.2-2017
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Basic data | Standard ID | GB/T 26802.2-2017 (GB/T26802.2-2017) | | Description (Translated English) | Industrial control computer system -- General specification -- Part 2: Safety requirements for industrial control computer | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | N18 | | Classification of International Standard | 25.040.40 | | Word Count Estimation | 58,522 | | Date of Issue | 2017-12-29 | | Date of Implementation | 2018-07-01 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | GB/T 26802.2-2017: Industrial control computer system -- General specification -- Part 2: Safety requirements for industrial control computer
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Industrial control computer system-General specification-Part 2. Safety requirements for industrial control computer
ICS 25.040.40
N18
National Standards of People's Republic of China
Industrial control computer systems - General specifications
Part 2. Industrial control computer security requirements
Part 2.Safetyrequirementsforindustrialcontrolcomputer
2017-12-29 Posted
2018-07-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Directory
Foreword V.
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 test 2
4.1 Overview 2
4.2 Test sequence 2
4.3 benchmark test conditions 2
4.3.1 Environmental conditions 2
4.3.2 equipment status 2
4.4 Single fault conditions test 3
4.4.1 Overview 3
4.4.2 Application of fault conditions 3
4.4.3 Test duration 5
4.4.4 Conformity after application of fault conditions 5
5 signs and documents 6
5.1 mark 6
5.1.1 Overview 6
5.1.2 logo 6
5.1.3 Power 6
5.1.4 Fuse 8
5.1.5 terminals, connectors and operating device 8
5.1.6 Switches and Circuit Breakers 8
5.1.7 Controls and Indicators 9
5.1.8 Industrial control computer with double or reinforced insulation 9
5.2 Warning signs 9
5.3 logo durability 10
5.4 Documents 10
5.4.1 Overview 10
5.4.2 Industrial control computer rating 10
5.4.3 Industrial Control Computer Installation 10
5.4.4 Industrial Control Computer Operation 11
5.4.5 Industrial Control Computer Maintenance 11
6 anti-shock 11
6.1 Overview 11
6.2 Determination of accessible components 11
6.2.1 Overview 11
6.2.2 Inspection 12
6.2.3 Hazardous electrical components above the opening 12
6.2.4 pre-conditioning control of the opening 12
6.3 Permissible limits of accessible components 12
6.3.1 Overview 12
6.3.2 Limit under normal conditions 12
6.3.3 Limitations under single fault conditions 12
6.4 Protection under normal conditions 13
6.5 Single fault protection 15
6.5.1 Overview 15
6.5.2 Protection Connection 15
6.5.3 Double insulation and reinforced insulation 16
6.5.4 Protection Impedance 16
6.5.5 Industrial Control Computer Automatic Disconnection 17
6.6 Connection with External Circuit 17
6.7 Clearances and creepage distances 17
6.7.1 Overview 17
6.7.2 General requirements
6.7.3 Grid Power Supply Circuit 18
6.7.4 Circuits other than the mains power supply circuit 19
6.8 Dielectric Strength Test Procedure 20
6.8.1 Reference test site 20
6.8.2 Wet Pretreatment 21
6.8.3 Test Implementation 21
6.8.4 Voltage test 21
6.9 Structural requirements for protection against electric shock 22
6.9.1 Overview 22
6.9.2 double insulated or reinforced insulation housing 22
6.10 and the power supply connection 23
6.10.1 Power Cord 23
6.10.2 Installation of Non-detachable Power Cables 23
6.10.3 Plugs and Connectors 24
6.11 Input Power Disconnect 25
6.11.1 Overview 25
6.11.2 Exceptions 25
6.11.3 according to the type of power requirements 25
6.11.4 Disconnect device 25
7 anti-mechanical danger 26
8 resistant to mechanical shock and impact 26
8.1 Overview
8.2 Housing rigidity test 26
8.2.1 Static test 26
8.2.2 Dynamic test 27
9 to prevent the spread of fire 27
9.1 Overview 27
9.2 Elimination or reduction of ignition sources within the equipment 28
9.3 In the event of a fire, control the flame in the equipment
9.3.1 Overview 29
9.3.2 Structural Requirements 29
9.4 limit circuit 30
9.5 Over-current protection 32
10 equipment temperature limits and heat 32
10.1 on the surface of the burn temperature limit 32
10.2 winding temperature 32
10.3 Other Temperature Measurement 33
10.4 Temperature Test Implementation 33
10.5 heat 33
10.5.1 Clearances and integrity of creepage distances 33
10.5.2 Non-metallic shell 33
10.5.3 Insulation material 34
11 component 34
11.1 Overview 34
11.2 Fan 35
11.3 Battery 35
11.4 Over-temperature protection device 35
11.5 fuse holder 36
11.6 Mains supply voltage selector 36
11.7 Power transformers tested outside the equipment 36
Printed circuit board 36
11.9 Circuits and Components Used as Transient Overvoltage Limits 36
Appendix A (Normative) routine test 38
Appendix B (Normative) Standard Test Index 39
Appendix C (Normative) Contact current measurement circuit 41
Appendix D (Normative) During the parts required for insulation 44
Appendix E (Normative) Pollution Degree Reduction 47
Appendix F (Normative) Clearances and creepage distance measurement 48
Fig.1 Maximum short duration of instantaneous accessible voltage under single fault condition 13
Figure 2 under normal conditions and single fault charge capacity limit 14
Figure 3 Removable Power Cord and Connections 23
Figure 4 using the ball impact test 27
Figure 5 illustrates a flowchart 28 for preventing flame spread requirements
Figure 6 baffle 30
The structure of Figure 7 shall conform to the area 30 at the bottom of the enclosure as specified in 9.3.2 b) 1)
Figure 8 ball pressure test device 34
Figure B.1 Rigid test finger (GB/T 16842-2008 test tool 11) 39
Figure B.2 Articulated test finger (GB/T 16842-2008 Test B) 40
Figure C.1 AC and DC measurement circuits 41 at frequencies less than or equal to 1 MHz
Figure C.2 Sine AC and DC measurement circuit 42 at frequencies less than or equal to 100 Hz
Figure C.3 Electric burns current measurement circuit 42
Figure C.4 Moisture Contact Current Measurement Circuit
Figure D.1 a) ~ d) Dangerous live circuit and under normal conditions does not exceed the limit of 6.3.2 and have access to external components terminals
Protection between the circuits 44
Figure D.1 e) ~ h) Between dangerous live circuits and other circuits with external terminals not exceeding 6.3.2 limits under normal conditions
Protection 45
Figure D.2 a) and b) Accessible to internal hazardous live circuits not accessible by other accessible components 45
Figure D.2 c) and d) under normal conditions does not exceed the limit of 6.3.2 secondary circuit accessible terminals of the primary danger live circuit
Protection 45
Figure D.3 Protection of externally accessible terminals of two hazardous live circuits
Figure F.1 Examples of methods for measuring clearances and creepage distances 48
Table 1 Symbol 7
Table 2 Tightening torque of screw assembly 16
Table 3 within 5000m above sea level gap multiplication factor 18
Table 4 Clearances and Creepage Distances of Power Supply Circuits 19
Table 5 Clearances of circuits supplied by mains supply 19
Table 6 Creepage distance 20
Table 7 Basic insulation test voltage 22
Table 8 Physical Test of Power Cord 24
Table 9 Permissible openings in the bottom of the housing 29
Table 10 Limits on the maximum achievable current value 31
Table 11 Overcurrent protection device value 31
Table 12 Surface temperature limits under normal conditions 32
Table 13 winding insulation material maximum temperature 33
Table 14 Impulse withstand voltage 36
Table 15 Pulser Output Impedance 37
Table E.1 shows the reduction in the level of internal environmental pollution through the use of additional protection 47
Table F.1 Pollution Registration Form
Foreword
GB/T 26802 "Industrial Control Computer System General Specifications" is divided into the following sections.
--- Part 1. General requirements;
--- Part 2. Industrial control computer security requirements;
--- Part 3. Graphical symbols for equipment;
--- Part 4. Text symbols;
--- Part 5. Site safety requirements;
--- Part 6. Acceptance outline.
This section GB/T 26802 Part 2.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This part is proposed by China Machinery Industry Federation.
This part of the National Industrial Process Measurement Control and Automation Standardization Technical Committee (SAC/TC124) centralized.
This section drafted unit. EVOC Intelligent Technology Co., Ltd., Southwest University, Xiamen Andong Electronics Co., Ltd., Beijing Jin Lishi Instrument
Technology Co., Ltd., Xiamen Yu Electric Automation Technology Co., Ltd., Xi'an Dongfeng Electrical Co., Ltd., Xi'an Science and Technology Development Co., Ltd. has excellent control
Any company, Beijing Guodian Zhishen Control Technology Co., Ltd., Beijing Ruipu ternary Instrument Co., Ltd., Jinan Daqin Mechanical and Electrical Equipment Co., Ltd.,
Jiangsu Jack Instrument Co., Ltd., Mianyang City Weibo Electronics Co., Ltd., Hangzhou Pangu Automation System Co., Ltd., Nanjing excellent times Electric
Co., Ltd., Chongqing Wei Bank detector Manufacturing Co., Ltd., Jinan Changqing computer application company, Chongqing Yutong System Software Co., Ltd.
Division, Rockwell Automation (China) Co., Ltd.
The main drafters of this section. Pangunshi, Ren Junmin, Zhao Yixin, Zhang Xin Guo, Xiao Guobu, Gong Xiaodong, Zhou Yu, Zhang Peng, Zhang Chaohui, Hu Ming,
Tian Yucong, Li Zhenzhong, Yue Zonglong, Min Pei, Ruan Ci yuan, Guo Haojie, Dong Jian, Tang Tian, Ou Wenhui, Zhang Hong, Yue Zhou, Hua Rong, Lvchun Fang, Feng Dongqin,
Niu Xiaomin, Chen Wanlin, Deng Shuang, Qi Qian, Zhong Xiurong.
Industrial control computer systems - General specifications
Part 2. Industrial control computer security requirements
1 Scope
GB/T 26802 provisions of this part of a variety of industrial production equipment, measuring, monitoring and control of computer anti-shock and electrocautery
Injury, anti-mechanical danger, flame spread from inside the computer to prevent the impact of high temperature safety requirements. This section also provides through the inspection and
Type test to identify whether the device meets the requirements of this section.
This section applies to a variety of industrial equipment, measurement, monitoring and control computer products.
This section does not include non-safety equipment functions, performance or other characteristics, the effectiveness of transport packaging, electromagnetic compatibility (EMC)
Seeking, functional safety, protective measures against the explosive environment, maintenance (repair), maintenance (repair) personnel protection.
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.
Thermoplastics - Determination of Vicat softening temperature (VST) GB/T 1633-2000
GB/T 4208-2008 enclosure protection (IP code)
GB 4793.1 Safety requirements for electrical equipment for measurement, control and laboratory use - Part 1. General requirements
GB/T 5013 (all parts) Rated voltage 450V/750V and below rubber insulated cables
GB/T 5023 (all parts) rated voltage 450V/750V and below PVC insulated cables
GB/T 11020-2005 solid non-metallic materials exposed to the flame source flammability test list
Electrical insulation - Heat resistance and representation
Industrial plugs and socket connectors and couplers Part 1 GB/T 11918.1 General requirements
GB/T 11918.2 Industrial plugs and sockets - Part 2. Dimensional compatibility of electrical accessories with pins and inserts
Interchangeability requirements
GB/T 14048.1 low-voltage switchgear and control equipment General
GB/T 14048.3 low-voltage switchgear and control equipment Part 3. Low-voltage switches, isolators, disconnectors and fuse combinations
Electrical appliances
GB/T 15934 electrical accessories wire components and interconnecting wire components
GB/T 16927 (all parts) high voltage test technology
IEC 60027 electrician text symbols (Lettersymbolstobeusedinelectricaltechnology)
IEC 60664-3.2010 Insulation coordination of low-voltage systems Part 3. Use of coatings to improve the insulation of printed circuit board systems
(Insulationcoordinationforequipmentwithinlow-voltagesystems-Part 3.Useofcoating, potting
ormouldingforprotectionagainstpolution)
3 Terms and definitions
GB 4793.1 defined terms and definitions apply to this document.
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