GB/T 5204-2021Periodic surveillance testing of the safety system of nuclear power plant (English PDF)

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 replaces GB/T 5204-2008 "Nuclear Power Plant Safety System Periodic Testing and Monitoring", compared with GB/T 5204-2008, except In addition to structural adjustments and editorial changes, the main technical changes are as follows:

--- Changed the content not involved in the scope (see Chapter 1, Chapter 1 of the 2008 edition);

--- Added normative reference document GB/T 13284.1 (see Chapter 2);

--- Added the terms "sequence", "channel", "test start", "test input", "test end" (see 3.4, 3.5, 3.12, 3.13, 3.14), delete In addition to the term "monitoring" (see 3.8 of the 2008 edition), the terms "safety system", "safety function", "channel calibration", "channel inspection" have been changed Check the definition of "load group" (see 3.1, 3.2, 3.6, 3.7, 3.10, 3.1, 3.2, 3.13, 3.12, 3.6 of the 2008 edition);

--- Added design requirements for periodic tests (see 5.11, 5.13, 5.17, 5.18, 5.19), and integrated some design requirements (see 5.5, 5.5, 5.6 of the 2008 edition), changed some design requirements (see 5.8, 5.10, 5.12, 5.14, 5.16, 5.20, 5.9, 5.11, 5.12, 5.13, 5.15, 5.16 of the 2008 edition);

--- Change the relevant content of the basic requirements of the regular test and monitoring program [see 6.1, 6.1b), 6.1.1, 6.1.3 of the 2008 edition];

--- Changed the content related to the objectives of the regular test and monitoring program [see 6.2b), g), 2008 edition 6.2b), g)];

--- Added the content of "online monitoring" (see 7.1.3.2);

--- Change the relevant requirements for response time verification (see 7.1.4.2, 7.1.4.3, 6.3.4.3, 6.3.4.2 of the 2008 edition);

--- Added the relevant content of the test method (see 7.2.6);

--- Added the test method for "simulated equipment/system" (see 7.2.9);

--- Added the test method for "digital equipment/system" (see 7.2.10);

--- Added the factors for determining the initial test interval based on risk guidance technology [see 8.5e), f)], and changed some factors [see 8.5c), d), 6.5.4c), d) of the 2008 edition];

--- Deleted "program format and file" (see 6.6 of the 2008 edition).

1 Scope

This document specifies the design criteria and requirements for the implementation of periodic testing and monitoring of nuclear power plant safety systems.

This document applies to the design of periodic testing and monitoring of safety systems in nuclear power plants.

This document does not involve the verification test after the maintenance and modification of the safety system of the nuclear power plant.

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 13284.1 Nuclear Power Plant Safety System Part 1. Design Criteria

GB/T 13629 Guidelines for the Application of Digital Computers in Nuclear Power Plant Safety Systems

HAD003/09 Quality Assurance During Commissioning and Operation of Nuclear Power Plants

3 Terms and Definitions

The terms and definitions defined in GB/T 13284.1 and the following terms and definitions apply to this document.