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GB/T 16855.2-2015 PDF English

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GB/T 16855.2-2015: Safety of machinery -- Safety-related parts of control systems -- Part 2: Validation
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GB/T 16855.2: Historical versions

Standard IDUSDBUY PDFDeliveryStandard Title (Description)Status
GB/T 16855.2-2015685 Add to Cart Auto, 9 seconds. Safety of machinery -- Safety-related parts of control systems -- Part 2: Validation Valid
GB/T 16855.2-2007RFQ ASK 5 days Safety of machinery -- Safety-related parts of control systems -- Part 2: Validation Obsolete

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GB/T 16855.2-2015: Safety of machinery -- Safety-related parts of control systems -- Part 2: Validation


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GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 13.110 J 09 GB/T 16855.2-2015 / ISO 13849-2.2012 Replacing GB/T 16855.2-2007 Safety of Machinery - Safety-Related Parts of Control Systems - Part 2.Validation (ISO 13849-2.2012, IDT) Issued on. DECEMBER 10, 2015 Implemented on. JULY 01, 2016 Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of PRC.

Table of Contents

Foreword... 4 Introduction... 6 1 Scope... 8 2 Normative References... 8 3 Terms and Definitions... 8 4 Validation Process... 9 4.1 Validation principles... 9 4.2 Validation plan... 11 4.3 Generic fault lists... 11 4.4 Specific fault lists... 11 4.5 Information for validation... 12 4.6 Validation record... 14 5 Validation by Analysis... 15 5.1 General... 15 5.2 Analysis techniques... 15 6 Validation by Testing... 16 6.1 General... 16 6.2 Measurement accuracy... 17 6.3 More stringent requirements... 17 6.4 Number of test samples... 17 7 Validation of Safety Requirements Specification for Safety Functions... 18 8 Validation of Safety Functions... 19 9 Validation of Performance Levels and Categories... 20 9.1 Analysis and testing... 20 9.2 Validation of category specifications... 20 9.3 Validation of MTTFd, DCavg and CCF... 23 9.4 Validation of measures against systematic failures related to performance level and category of SRP/CS... 24 9.5 Validation of safety-related software... 24 9.6 Validation and verification of performance level... 26 9.7 Validation of combination of safety-related parts... 26 10 Validation of Environmental Requirements... 27 11 Validation of Maintenance Requirements... 27 12 Validation of Technical Documentation and Information for Use... 28 Annex A (Informative) Validation Tools for Mechanical Systems... 28 Annex B (Informative) Validation Tools for Pneumatic Systems... 34 Annex C (Informative) Validation Tools for Hydraulic Systems... 45 Annex D (Informative) Validation Tools for Electrical Systems... 54 Annex E (Informative) Example of Validation of Fault Behavior and Diagnostic Means... 67 Bibliography... 97

Foreword

GB/T 16855 Safety of Machinery – Safety-Related Parts of Control Systems consists of the following two parts. --- Part 1.General Principles for Design. --- Part 2.Validation. This Part is Part 2 of GB/T 16855. This Part was drafted as per the rules specified in GB/T 1.1-2009. This Part replaced GB/T 16855.2-2007 Safety of Machinery – Safety-Related Parts of Control Systems – Part 2.Validation. Compared with GB/T 16855.2-2007, this Part has the major technical changes as follows besides the editorial modifications. --- Add the validation applicable to the performance level in the Scope (see Clause 1 of this Edition; Clause 1 of 2007 Edition); --- Add the validation of the safety requirements and specifications of the safety function (see Clause 7 of this Edition); --- Add the performance level and its related parameters (MTTFd, DCavg and CCF), and the validation of safety-related software (see Clause 9 of this Edition, Clause 1 of 2007 Edition); --- Add confirmation of technical documents and usage information (see Clause 12 of this Edition); --- Add the failure characteristics validation and diagnostic measure examples (see Appendix E of this Edition). This Part uses translation method to equivalently adopt ISO 13849-2.2012 Safety of Machinery – Safety-Related Parts of Control Systems – Part 2.Validation (English Version). This Part was proposed by and under the jurisdiction of National Technical Committee for Standardization of Machinery Safety (SAC/TC 208). Drafting organizations of this Part. Rugao Packaging & Foodstuff Machinery Co., Ltd.; National Machine Tool Product Quality Supervision & Inspection Center; Nanjing University of Science and Technology; Omron Industrial Automation (China) Co., Ltd.; China Productivity Center for Machinery; Opto-Mechanical Engineering Institute of Nanjing Forestry University; Pilz Industrial Automation (Shanghai) Co., Ltd.; ABB (China) Ltd.; and Siemens Ltd. China. Chief drafting staffs of this Part. Shi Chuanming, Ju Likai, Zhao Qinzhi, Zhang Xiaofei, Li Qin, Ning Yan, Ju Ronghua, Li Liyan, Chu Weizhong, Zhang Tian Qiang, Luo Guang, Cheng Hongbing, Liu Ying, Chen Nengyu, Huang Zhijiong, Zhang Yarong, Song Xiaoning, Wu Jian, Wang Zheng, Fu Huiqing, Liu Zhiyong, Jiang Tao, and Yu Heng. The historical editions replaced by this Standard are as follows. --- GB/T 16855.2-2007.

1 Scope

This Part specifies the procedures and conditions to be followed for the validation by analysis and testing of.

2 Normative References

The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) is applicable to this document. GB/T 15706-2012 Safety of Machinery - General Principles for Design - Risk Assessment and Risk Reduction (ISO 12100.2010, IDT)

3 Terms and Definitions

For the purpose of this document, the terms and definitions given in GB/T 15706-2012 and GB/T 16855.1-2008 apply.

4 Validation Process

The validation plan shall identify and describe the requirements for carrying out the validation process for the specified safety functions, their categories and performance levels. If necessary, a specific product-related fault list shall be generated as a reference document for the validation process of the safety-related part(s). The list can be based on the appropriate generic list(s) found in the annexes.

5 Validation by Analysis

The s election of an analysis technique depends upon the particular object. Two basic techniques exist, as follows.

6 Validation by Testing

The accuracy of measurements during the validation by testing shall be appropriate for the test carried out. In general, these measurement accuracies shall be within 5°C for temperature measurements and 5% for the following. Unless otherwise specified, the tests shall be made on a single production sample of the safety-related part being tested.

7 Validation of Safety Requirements Specification for Safety Functions

Prior to the validation of the design of the SRP/CS, or the combination of SRP/CS providing the safety function, the requirements specification for the safety function shall be verified to ensure consistency and completeness for its intended use.

8 Validation of Safety Functions

The validation of safety functions shall demonstrate that the SRP/CS, or combination of SRP/CSs, provides the safety function(s) in accordance with their specified characteristics.

9 Validation of Performance Levels and Categories

Where the safety function is implemented by two or more safety-related parts, validation of the combination - by analysis and, if necessary, by testing - shall be undertaken to establish that the combination achieves the performance level specified in the design.

10 Validation of Environmental Requirements

The performance specified in the design of the SRP/CS shall be validated with respect to the environmental conditions specified for the control system.

11 Validation of Maintenance Requirements

The validation process shall demonstrate that the provisions for maintenance requirements specified in GB/T 16855.1-2008, Clause 9, Paragraph 2, have been implemented. ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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