GB/T 16855.2-2015 English PDF (GBT16855.2-2015)

Delivery: 3 seconds. Download true-PDF + Invoice.
Get QUOTATION in 1-minute: Click GB/T 16855.2-2015
Historical versions: GB/T 16855.2-2015
Preview True-PDF (Reload/Scroll if blank)

GB/T 16855.2-2015: Safety of machinery -- Safety-related parts of control systems -- Part 2: Validation
GB/T 16855.2-2015
Safety of machinery - Safety-related parts of control systems - Part 2. Validation
ICS 13.110
J09
National Standards of People's Republic of China
Replace GB/T 16855.2-2007
Safety related parts of mechanical safety control system
Part 2. Confirmation
Part 2.Validation
(ISO 13849-2.2012, IDT)
Released on December 10,.2015
2016-07-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Administration issued
Content
Foreword III
Introduction IV
1 range 1
2 Normative references 1
3 Terms and Definitions 1
4 Confirmation process 1
4.1 Confirmation Principle 1
4.2 Confirmation Plan 2
4.3 General Fault List 3
4.4 Special fault list 3
4.5 Confirmation Information 3
4.6 Confirmation record 5
5 Analysis and confirmation 5
5.1 General requirements 5
5.2 Analysis method 5
6 Test Confirmation 5
6.1 General requirements 5
6.2 Measurement accuracy 6
6.3 More stringent requirements 6
6.4 Number of test samples 6
7 Confirmation of safety requirements specification for safety functions 7
8 Confirmation of safety function 7
9 Confirmation of performance levels and categories 7
9.1 Analysis and testing 7
9.2 Confirmation of category specifications 8
9.3 Confirmation of MTTFd, DCavg and CCF 9
9.4 Confirmation of systemic failure prevention measures related to SRP/CS performance levels and categories 10
9.5 Confirmation of safety related software 10
9.6 Confirmation and verification of performance levels 11
9.7 Confirmation of safety related component combinations 11
10 Confirmation of environmental requirements 11
11 Confirmation of maintenance requirements 12
12 Confirmation of technical documents and usage information 12
Appendix A (informative) Confirmation tool for mechanical systems 13
Appendix B (informative) Pneumatic system validation tool 16
Appendix C (informative) Hydraulic system validation tool 23
Appendix D (informative) Confirmation tools for electrical systems 29
Appendix E (informative) Example of fault characteristics confirmation and diagnostic measures 39
References 59
Foreword
GB/T 16855 "Safety related parts of mechanical safety control system" consists of the following two parts.
--- Part 1. General rules of design;
--- Part 2. Confirmation.
This part is the second part of GB/T 16855.
This part is drafted in accordance with the rules given in GB/T 1.1-2009.
This part replaces GB/T 16855.2-2007 "Safety Parts of Machinery Safety Control System Part 2. Confirmation". versus
Compared with GB/T 16855.2-2007, the main technical changes except editorial changes are as follows.
--- Added a confirmation to the performance level for the scope (see Chapter 1, Chapter 1 of the.2007 edition);
--- Added confirmation of safety requirements for safety functions (see Chapter 7);
--- Increased performance levels and related parameters (MTTFd, DCavg, and CCF), and safety-related software validation (see Chapter 9,
Chapter 1 of the.2007 edition);
--- Added confirmation of technical documentation and usage information (see Chapter 12);
--- Added examples of fault characteristics confirmation and diagnostic measures (see Appendix E).
This section uses the translation method equivalent to ISO 13849-2.2012 "Mechanical Safety Control System Safety Related Parts Part 2.
Recognition (English version).
This part is proposed and managed by the National Machinery Safety Standardization Technical Committee (SAC/TC208).
This section drafted by. Rugao Packaging Food Machinery Co., Ltd., National Machine Tool Quality Supervision and Inspection Center, Nanjing University of Science and Technology, ohm
Long Automation (China) Co., Ltd., China Machine Productivity Promotion Center, Institute of Optical and Mechanical Engineering, Nanjing Forestry University, Piel Magnetic Industry Automation
Trading (Shanghai) Co., Ltd., ABB (China) Co., Ltd., Siemens (China) Co., Ltd.
The main drafters of this section. Shi Chuanming, Curie, Zhao Qinzhi, Zhang Xiaofei, Li Qin, Ning Yan, Ju Ronghua, Li Liyan, Wei Weizhong, Zhang Tianqiang,
Luo Guang, Cheng Hongbing, Liu Ying, Chen Nengyu, Huang Zhixuan, Zhang Yarong, Song Xiaoning, Wu Jian, Wang Zheng, Fu Huiqing, Liu Zhiyong, Jiang Tao, Yu Heng.
The previous versions of the standards replaced by this section are.
---GB/T 16855.2-2007.
introduction
The structure of safety standards in the mechanical field is as follows.
--- Class A standard (basic safety standard), giving basic concepts, design principles and general characteristics applicable to all machines.
---Class B (General Safety Standard), a type of safety device that covers a safety feature of a machine or has a wide range of uses.
● Class B1, specific safety features (such as safety distance, surface temperature, noise) standards;
● Class B2, standard for safety devices (such as two-hand control devices, interlock devices, pressure sensitive devices, and protective devices).
---Class C (Product Safety Standard), a standard that specifies detailed safety requirements for a particular machine or group of machines.
According to GB/T 15706, this standard belongs to the B1 standard.
Class C standards may supplement or modify the requirements of this standard.
For machines within the scope of the C standard, if it has been designed and manufactured in accordance with this standard, the requirements in this Class C standard are preferred.
This section specifies the validation process for the safety functions, categories, and performance levels of safety-related components of the control system. This section recognizes the passage
The combination of analysis (see Chapter 5) and testing (see Chapter 6) enables the identification of safety-related components of the control system and specifies the characteristics of the test.
Special environmental conditions.
Most of the procedures and conditions specified in this section are based on the assumption that the provisions of 4.5.4 of GB/T 16855.1-2008 are adopted.
A simplified procedure for estimating the performance level (PL). This section does not give guidance on the use of other programs (for example. Markov modeling).
In this case, certain provisions of this section no longer apply and additional requirements are required.
Regardless of the technology (electrical, hydraulic, pneumatic, mechanical, etc.) used in the safety-related components of the control system, the general design rules (see
The guidelines of GB/T 15706) are given in GB/T 16855.1. This includes a description of some typical security features, the required performance level.
Determination, as well as general requirements for categories and performance levels.
Some of the validation requirements given in this section are generic, while other validation requirements are specific to the type of technology being used.
Safety related parts of mechanical safety control system
Part 2. Confirmation
1 Scope
This section specifies the procedures and conditions to be followed when analyzing and testing the following parameters.
---Specified safety functions;
--- Category of control system safety related components (SRP/CS) designed in accordance with GB/T 16855.1;
---Performance level achieved by the control system safety related components (SRP/CS) designed in accordance with GB/T 16855.1.
Note. Additional requirements for programmable electronic systems (including embedded software) are given in 4.6 and GB/T 20438 of GB/T 16855.1-2008.
2 Normative refere...