GB/T 21562-2008 English PDF (GBT21562-2008)
GB/T 21562-2008 English PDF (GBT21562-2008)
GB/T 21562-2008: Railway applications -- Specification and demonstration of Reliability, Availability, Maintainability and Safety (RAMS)
Railway applications.Specification and demonstration of Reliability, Availability, Maintainability and Safety (RAMS) ICS 45.060
National Standards of People's Republic of China
GB/T 21562-2008/IEC 62278.2002
Rail transit reliability, availability, maintainability and
Security specifications and examples
(IEC 62278.2002, IDT)
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Administration issued
1 range 1
2 Normative references 1
3 Terms and Definitions 1
4 rail transit RAMS 5
4.1 Introduction 5
4.2 Rail transit RAMS and operating quality 6
4.3 Elements of Rail Transit RAMS 6
4.4 Factors affecting rail transit RAMS 7
4.5 Methodology for realizing the demand for rail transit RAMS 11
4.6 Risk 11
4.7 Safety Integrity 14
4.8 Failure Safety Concept 15
5 Rail Transit RAMS Management 15
5.1 General 15
5.2 System Life Cycle 15
5.3 Application of this standard 20
6 RAMS life cycle 21
6.1 Phase 1. Concept 22
6.2 Phase 2. System Definition and Application Conditions 22
6.3 Phase 3. Risk Analysis 25
6.4 Phase 4. System Requirements 26
6.5 Phase 5. System Requirements Allocation 29
6.6 Phase 6. Design and Implementation 30
6.7 Stage 7. Manufacturing 31
6.8 Phase 8. Installation 32
6.9 Phase 9. System validation (including safety acceptance and commissioning) 33 6.10 Stage 10. System Acceptance 34
6.11 Phase 11. Operations and Maintenance 35
6.12 Stage 12. Performance Monitoring 36
6.13 Modifications and updates 36
6.14 Discontinuation and disposal 37
Appendix A (informative) Summary of the RAMS specification (example) 39 Appendix B (informative) RAMS Planning 43
Appendix C (informative) Example of rail transit application parameters 46 Appendix D (informative) Examples of several risk acceptance principles 48 Appendix E (informative) Responsibilities within the life cycle RAMS process 51 GB/T 21562-2008/IEC 62278.2002
This standard is equivalent to the IEC 62278.2002 "Railway Reliability, Availability, Maintainability and Safety (RAMS) specifications and Example" (English version).
This standard is equivalent to translation IEC 62278.2002.
For ease of use, this standard makes the following editorial changes.
a) the words “this International Standard” are replaced by the words “this standard”; b) Remove the preface to international standards.
Appendix A, Appendix B, Appendix C, Appendix D, and Appendix E of this standard are informative annexes. This standard is proposed and managed by the National Traction Electrical Equipment and Systems Standardization Technical Committee. This standard was drafted. Zhuzhou CSR Times Electric Co., Ltd., CSR Sifang Locomotive Co., Ltd., China South Locomotive Group Zhuzhou Electric Locomotive Co., Ltd., China Railway Electrification Survey and Design Institute, Tongji University, Institute of Standards and Metrology of the Ministry of Railways. The main drafters of this standard. Yan Yunsheng, Fan Yucheng, Liu Gui, Guo Liping, Gao Daoxing, Zhang Zhilong, Su Guanghui, Cheng Zuguo, Hu Ai. GB/T 21562-2008/IEC 62278.2002
This standard provides a process for the rail transit authorities and their supporting industries to achieve the reliability of the corresponding methods. Management of usability, maintainability and safety (represented by RAMS). This standard is based on the flow and examples of the RAMS requirements specification. It is to promote consensus and management of RAMS.
At all stages of the rail transit application life cycle, the rail transit authorities and their supporting industries can systematically apply this standard. Develop and meet the RAMS requirements for specific rail transit applications. The system grading method defined in this standard contributes to complex orbits Evaluation of RAMS interactions between various elements of traffic.
In different procurement strategies, this standard will promote the cooperation between the rail transit authorities and their supporting industries to obtain the best A combination of rail transit RAMS and fees.
The procedures specified in this standard assume that the rail transit authorities and their supporting industries have industry policies that stipulate quality, performance and safety. this The method specified in the standard shall be consistent with the quality management content of the GB/T 19000 series of standards. GB/T 21562-2008/IEC 62278.2002
Rail transit reliability, availability, maintainability and
Security specifications and examples
This standard defines the various elements of RAMS (reliability, availability, maintainability, and safety) and their interactions. The process of managing the RAMS based on the life cycle and its work, so that the contradictions between the various elements of RAMS can be effectively controlled and management.
This standard does not specify RAMS indicators, quantities, requirements or solutions for rail transit specific applications, and does not specify security for the system. demand. These should be specified in the RAMS sub-criteria for each specific application. This standard applies to.
a) RAMS specifications and descriptions for all levels of rail transit applications and at various levels in this application; for example, from the entire track line The main system on the track line and the independent or integrated subsystems and their components into these main systems, Including the software included, in particular.
---Integrated into a new system working in an existing system before the development of this standard, although it generally cannot be applied to existing systems other aspects;
--- An update of an existing system prior to the development of this standard, although it generally cannot be applied to other aspects of the system. b) All relevant phases of the life cycle in the application.
c) Use of the rail transit authority and its supporting industries.
Note. Application guidelines are given in the requirements of this standard. 2 Normative references
The terms in the following documents become the terms of this standard by reference to this standard. All dated references, followed by all Modifications (not including errata content) or revisions do not apply to this standard, however, parties to agreements based on this standard are encouraged to study Is it possible to use the latest version of these files? For undated references, the latest edition applies to this standard. GB/T 19001-2000 Quality Management System Requirements (idt ISO 9001.2000) GB/T 20438 (all parts) Functional safety of electrical/electronic/programmable electronic safety related systems [IEC 61508 (all parts) Points), IDT]
IEC 60050 (191)..1990 International Electrotechnical Terminology Chapter 191. Credibility and Operational Quality IEC 62279 Rail Transit, Signal and Processing System Rail Traffic Control and Protection System Software EN50129.2003 Safety related electronic systems for rail transit signals 3 Terms and definitions
The following terms and definitions apply to this standard.
The RAMS element of the system is decomposed between the various components of the system to present separate targets for each component. 3.2
According to the investigation and evidence collection, the applicability of the product is evaluated. GB/T 21562-2008/IEC 62278.2002
Systematization and independence used to determine whether a product's requirements are in line with planned arrangements, effective implementation, and suitability for a given target Assessment.
Under the premise that the required external resources are guaranteed, the product is enforceable under the specified conditions and within the specified time or time interval. The ability to specify functional status.
The general name of the activity to be taken before the verification system or product meets the specified requirements. 3.6
A fault caused by one event causing two or more components to fail simultaneously to prevent the system from performing the specified function. 3.7
The characteristics or parameters of the product meet the requirements of the specified requirements. 3.8
A discipline that uses technology and management to direct and monitor to verify the functional and physical characteristics of a project configuration and to control these characteristics. The process of changing, documenting, and reporting changes, the status of implementation, and validation are consistent with specific needs. 3.9
After the fault is identified, the product is restored to the repair that can be performed to perform the specified functional state. 3.10
The probability of a set of events cannot be represented by a simple product of the unconditional probability of a single event. 3.11
The time interval during which the product is in a down state.
[IEC 60050 (191), modified]
Causes of failure during design, production, or use.
[IEC 60050 (191)]
Estimation or observation of the cause of failure of a specified project related to operating conditions at the time of failure. 3.14
The limit value (if any) that is obtained when approaching 0 (assuming normal operation at the beginning of the interval). Note. In applications, when the distance traveled or the number of duty cycles is more relevant to the failure rate than time, the time unit can be replaced by the corresponding distance unit or number of cycles. GB/T 21562-2008/IEC 62278.2002
A possible state of a faulty product relative to a given specified function. [IEC 60050 (191)]
A method of analyzing a fault pattern in the form of a fault tree, which is used to determine products, sub-products, or external events or groups thereof This may result in a given failure mode for the product.
A physical condition that causes potential harm to a person or causes potential damage to the environment. 3.18
A record or reference document for all safety management activities, hazard determinations, decisions made, and resolutions may also be referred to as “safety records”. [EN50129]
Prepare and organize all resources used to operate and maintain the system's work at the specified availability level at the required life cycle cost. 3.20
Under specified conditions, when using the prescribed procedures and resources for maintenance, the product under the given conditions of use is within the specified time zone. In the meantime, the ability to perform the specified actual maintenance work can be completed. [IEC 60050 (191)]
All technical and managerial work, including oversight activities, to maintain or restore the product in a state where it can perform the specified functions. [IEC 60050 (191)]
Used as a description of the relationship between the maintenance echelon, contract layer, and maintenance work layer of a product. [IEC 60050 (191)]
A description of the goals of the basic work performed by the system.
The expected range of parameters (number of times, load, speed, distance, parking lot, tunnel, etc.) in the mission during the operational phase of the life cycle And a change thumbnail.
Maintenance performed on a regular basis or according to predetermined criteria to prevent functional degradation and reduce the probability of failure. 3.26
An organization that has full responsibility for the managers of the rail transit system. Note. For the total system or its components and life cycle activities, the responsibility of the administration is sometimes shared among one or more groups or organizations. E.g. GB/T 21562-2008/IEC 62278.2002
--- One or more component owners or agents of the system;
--- maintainer of a certain part or parts of the system;
---and many more.
The above assignments are based on statutory documents or contracts, so these responsibilities should be clearly defined at an early stage of the system's life cycle. 3.27
A generic term for a supplier of the entire rail transit system, subsystems, and components. 3.28
A set of time-scheduled activities, resources, and events written in writing that apply to organizational structure, responsibilities, processes, operations, capabilities, and The realization of resources, together they ensure that the requirements of the specified contract or project for reliability and maintainability are met. 3.29
The combination of the first letter of Reliability, Availability, Maintainability and Safety (the first three are combined into RAM). 3.30
[IEC 60050 (191)]
The product continually improves a state of characterization of reliability performance measures. [IEC 60050 (191)]
Part of the repair work is the manual work carried out on the project.
[IEC 60050 (191)]
The event that the product can perform the specified function again after the fault occurs. 3.34
The probability of the hazard that caused the injury and the severity of the damage. 3.35
Eliminate the unacceptable risk impact characteristics.
The product meets the written instructions for the specified safety requirements. 3.37
The possibility that the system will achieve the required safety function within the specified time under all specified conditions. 3.38
Safety Integrity Level (SIL)
One of many defined intermittent values that specify the safety integrity of the safety functions assigned to safety-related systems GB/T 21562-2008/IEC 62278.2002
begging. The higher the value, the higher the safety integrity level.
A set of documents for scheduling activities, resources, and events that are appropriate for the organization, responsibility, operations, activities, capabilities, and resource realization. Together to ensure that the required contract or project safety requirements are met. 3.40
It is usually a government agency that has the responsibility to stipulate or agree to these safety requirements and to ensure that rail transit meets these requirements. 3.41
Activities that occur from the beginning of the system's conception to the time when the system can no longer be used for decommissioning or phase-out. 3.42
In some specific circumstances or in certain combinations of inputs, due to errors in any phase of the safety lifecycle activity The resulting failure.
The maximum level of risk for products that the rail transit authority can accept. 3.44
Objective evidence and testing are used to determine whether specific requirements for the intended intended use are met. 3.45
Use objective evidence and tests to determine if the requirements are met. Note. The descriptions of Verification and Validation are shown in Figures 11 and 5.2.9. 4 rail transit RAMS
4.1.1 This chapter provides basic information about RAMS and RAMS engineering. The purpose of this chapter is to provide the reader with sufficient background knowledge. This standard is effectively applied to the rail transit system.
4.1.2 Rail transit RAMS plays a major role in the operational quality specified by the rail transit authorities. Rail transit RAMS by several Each consists of a component of action. Therefore, the structure of this chapter is as follows. a) 4.2 examined the relationship between rail transit RAMS and operational quality. b) 4.3 to 4.8 examine all aspects of rail transit RAMS, namely.
--- Elements of RAMS;
--- Factors affecting RAMS and methods of obtaining RAMS;
--- Risk and safety integrity.
4.1.3 This chapter should use as much as possible the established international terminology and the new terminology formed by the rail transit industry as defined in Chapter 3 of this standard or A term that has been approved.
4.1.4 The order of “systems, subsystems, components” in this standard is used to describe the breakdown from any complete application to its components, each The precise limits of terms (systems, subsystems, and components) depend on the particular application. 4.1.5 A system can be defined as a collection of subsystems and components that are organized in a certain way to obtain a particular function. These functions are assigned to Subsystems and components in the system, and the performance and state of the system change as the functionality of the subsystem or component changes. The system makes the input GB/T 21562-2008/IEC 62278.2002
Respond to produce the specified output while interacting with the environment. 4.2 Rail transit RAMS and operating quality
4.2.1 This clause describes the relationship between RAMS and operational quality for a task. 4.2.2 RAMS is a long-term operating characteristic of the system. Through the application of established engineering concepts throughout the life cycle of the system, Implemented by methods, tools, and techniques. The system's RAMS can be characterized and quantified in relation to the system or subsystem or components that make up the system. Indicators are expressed and guaranteed to achieve the specified functionality, availability and security. The system RAMS in this standard is reliable, usable, and maintainable. A combination of sex and security (RAMS).
4.2.3 Rail Transit RAMS demonstrates the confidence that the system can safely achieve the required level of rail transport within a specified time. Rail transit RAMS has a significant impact on the quality of the operation delivered to the user; the quality of the operation is also subject to other features and performance parameters. Sexual effects, such as frequency of operation, regularity of operation, and cost structure. The relationship is shown in Figure 1. Figure 1 Operational quality and rail transit RAMS
4.3 Elements of Rail Transit RAMS
4.3.1 This article describes the various elements of RAMS (reliability, availability, maintainability and safety) in a rail transit system environment. Interrelationship.
4.3.2 Security and availability are interrelated, and conflicts between security requirements and availability requirements, if not managed properly, can hinder access Trusted system. The relationship between the elements of rail transit RAMS (reliability, availability, maintainability and safety) is shown in Figure 2. Figure 2 Interrelationship between the elements of rail transit RAMS
4.3.3 Meet all requirements for reliability and maintainability and control ongoing, long-term maintenance, operational activities and system environment Meet the security and availability goals during the run.
4.3.4 Security protection, as a defense capability for the rail transit system against vandalism and unreasonable human behavior, is RAMS Deeper elements. However, matters to be considered for security protection are outside the scope of this standard. 4.3.5 The technical concept of usability is based on the following.
a) Reliability includes.
---Specify all possible system failure modes in the application and environment; --- the probability of each failure occurring, or the probability of each failure occurring; --- The effect of failure on system functionality.
b) maintainability includes.
---The time to perform planned maintenance;
---Time for fault detection, identification...