GB/T 22200.6-2025Reliability of low-voltage apparatus - Part 6: Reliability test method for contactor relays (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part

1.Structure and Drafting Rules of Standardization Documents". Drafting. This document is Part 6 of GB/T 22200 "Reliability of Low-Voltage Electrical Appliances". GB/T 22200 has already published the following parts.

1.General Rules;

2.Reliability Test Methods for Molded Case Circuit Breakers;

3.Reliability Test Methods for Overload Relays;

4.Reliability test methods for overcurrent protection circuit breakers used in household and similar applications;

5.Reliability Test Methods for Residual Current Operated Circuit Breakers for Household and Similar Purposes;

6.Reliability Test Methods for Contactor Relays;

7.Test methods for contactor reliability. This document replaces GB /Z 22201-2016 "Reliability Test Methods for Contactor Relays" and is consistent with GB /Z 22201-2016. Aside from structural adjustments and editorial changes, the main technical changes are as follows:

---The descriptions of reliability characteristics and the "seven levels" of operational failure rate have been removed (see Chapter 4 of the.2016 edition);

---Appendix B has been revised, removing "service life" and adding "reliable service life" and "mean service life" (see Appendix B,.2016 edition). Record B). Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed by the China Electrical Equipment Industry Association. This document is under the jurisdiction of the National Technical Committee on Standardization of Low Voltage Electrical Appliances (SAC/TC189). This document was drafted by: Hebei University of Technology, Shanghai Electrical Apparatus Research Institute, Zhejiang Chint Electric Co., Ltd., and Shanghai Electrical Apparatus Research Institute. Research Institute (Group) Co., Ltd., Dongguan Zhonghui Ruide Electronics Co., Ltd., and Delixi Electric Co., Ltd. The main drafters of this document are. Wang Jingqin, Gu Meng, Zhu Yingping, Zhang Senlin, Xing Yunqi, Wang Wenjun, Wang Bingqing, and Wang Yating. The release history of this document and the document it replaces is as follows:

---First published in.2008 as GB /Z 22201-2008, and revised for the first time in.2016;

---This is the second revision.

Low-voltage electrical appliances are produced in large quantities and used extensively, including power distribution appliances, control appliances, and terminal appliances. Their reliability has a wide-ranging impact on the application of low-voltage electrical appliances. It is used in various fields such as machinery, electricity, and electronics, involving multiple aspects such as power control and distribution. GB/T 22200 "Reliability of Low-Voltage Electrical Appliances" It is an important series of standards that guide the reliability verification of low-voltage electrical products in my country, and is planned to consist of 7 parts.

1 Scope

GB/T 22200.6-2025 is the Chinese national standard covering the reliability of a contactor relay. These devices operate millions of times in a control panel's life, and their contact welding or failure to close is what stops a production line. The part fixes the test conditions and the operating cycles, the failure criteria, the sample size and the statistical treatment that turns a number of failures into a reliability figure with a confidence level attached. It is one of the parts of GB/T 22200 issued together, and it is a first edition. It was issued on 31 December 2025 and has been in force since 1 July 2026, as a first edition. The document is under the responsibility of the China Electrical Equipment Industry Association. This page is published from the official record of the 2025 edition; the clause text of a standard this recent is not yet in circulation, and the figures, limits and tables it contains are those of the document itself, delivered in full with the English translation.

This document specifies the reliability indicators, reliability test methods, and reliability verification tests for contactor relays (hereinafter referred to as "relays"). Test plan and test procedures, test records, reliability test methods and steps under live operation. This document applies to the reliability test methods for contactor relay products conforming to GB/T 14048.5.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included. For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies. This document.

GB/T 2900.18-2008 Electrical Engineering Terminology - Low-Voltage Electrical Appliances

GB/T 2900.99-2016 Reliability of Electrical Engineering Terminology

GB/T 5080 (All Parts) Equipment Reliability Testing

GB/T 14048.1-2023 Low-voltage switchgear and controlgear - Part

3 Terms, Definitions and Symbols

3.1 Terms and Definitions GB/T 2900.18-2008, GB/T 2900.99-2016, GB/T 5080 (all parts),

GB/T 14048.1-2023, The terms and definitions defined in GB 14048.5-2017, GB/T 15510-2008 and

GB/T 22200.1-2025, as well as the following terms and definitions, apply to this standard. document.

3.1.1 Reliable life The amount of time required to reduce the reliability of a product to a given value.

Note. For contactor-type relays, reliable life is expressed as the number of operating cycles.

3.1.2 average life The average lifespan of a batch of products. For irreparable products, it refers to the average operating time before the irreparable product fails.