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GB/T 14598.26-2025 English PDF

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GB/T 14598.26-2025: Measuring relays and protection equipment - Part 26: Electromagnetic compatibility requirements
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GB/T 14598.26-2025English1139 Add to Cart 3 days [Need to translate] Measuring relays and protection equipment - Part 26: Electromagnetic compatibility requirements Valid GB/T 14598.26-2025
GB/T 14598.26-2015English774 Add to Cart 4 days [Need to translate] Measuring relays and protection equipment -- Part 26: Electromagnetic compatibility requirements Valid GB/T 14598.26-2015

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Basic data

Standard ID GB/T 14598.26-2025 (GB/T14598.26-2025)
Description (Translated English) Measuring relays and protection equipment - Part 26: Electromagnetic compatibility requirements
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard K45
Classification of International Standard 29.120.70
Word Count Estimation 56,521
Date of Issue 2025-05-30
Date of Implementation 2025-05-30
Older Standard (superseded by this standard) GB/T 14598.26-2015
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 14598.26-2025: Measuring relays and protection equipment - Part 26: Electromagnetic compatibility requirements


---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 29.120.70 CCSK45 National Standard of the People's Republic of China Replaces GB/T 14598.26-2015 Measuring relays and protection devices Part 26.Electromagnetic compatibility requirements (IEC 60255-26.2023,MOD) Released on 2025-05-30 2025-05-30 Implementation State Administration for Market Regulation The National Standardization Administration issued

Table of contents

Preface III Introduction VI 1 Scope 1 1.1 Overview 1 1.2 Launch 1 1.3 Immunity 1 2 Normative references 1 3 Terms, definitions and abbreviations 2 3.1 Terms and Definitions 2 3.2 Abbreviations 5 4 Definition of electromagnetic environment level 6 4.1 General 6 4.2 Class A, harsh electromagnetic environment 6 4.3 Class B, typical electromagnetic environment 6 5 Launch 7 5.1 Radiated Emissions 7 5.2 Conducted Emissions 8 6 Immunity 9 6.1 Housing port immunity 9 6.2 Auxiliary power port immunity 10 6.3 Signal/control port and wired network port noise immunity 13 6.4 Input/output port noise immunity 14 6.5 Ground port immunity 16 7 Test configuration and procedure 17 7.1 General 17 7.2 Launch 18 7.3 Immunity 19 8 Acceptance criteria 32 8.1 Emission 32 8.2 Immunity 32 9 Test report 33 Appendix A (Informative) Background information on point frequency testing 34 Appendix B (Normative) Switching input power frequency immunity test 35 B.1 Overview 35 B.2 Test level 35 B.3 Test equipment 35 B.4 Test configuration 36 Appendix C (Informative) Background information on power frequency testing 39 Appendix D (Informative) EMC Risk Assessment 40 D.1 EMC design risk assessment 40 D.2 Product platform risk assessment 41 Appendix E (informative) Considerations on the radio interface 44 Appendix F (Informative) Immunity test items to be considered in the future 45 References 46

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 for standardization documents" Drafting. This document is part 26 of GB/T 14598.GB/T 14598 has been published in the following parts. ---GB/T 14598.2 Measuring relays and protection devices Part 1.General requirements; ---GB/T 14598.3 Electrical relays Part 5.Insulation coordination requirements and tests for measuring relays and protection devices; ---GB/T 14598.8 Electrical relays Part 20.Protection systems; ---GB/T 14598.23 Electrical relays Part 21.Vibration, shock, impact and earthquake of measuring relays and protective devices Test Part 3.Earthquake Test; ---GB/T 14598.24 Measuring relays and protection devices Part 24.Transient data exchange in power systems (COMTRADE) Common format; ---GB/T 14598.26 Measuring relays and protection devices Part 26.Electromagnetic compatibility requirements; ---GB/T 14598.27 Measuring relays and protection devices Part 27.Product safety requirements; ---GB/T 14598.118 Measuring relays and protection devices Part 118.Synchronous phasor measurement in power systems; ---GB/T 14598.121 Measuring relays and protection devices Part 121.Requirements for distance protection functions; ---GB/T 14598.127 Measuring relays and protection devices Part 127.Over/undervoltage protection function requirements; ---GB/T 14598.149 Measuring relays and protection devices Part 149.Functional requirements of electric heating relays; ---GB/T 14598.151 Measuring relays and protection devices Part 151.Over/under current protection function requirements; ---GB/T 14598.181 Measuring relays and protection devices Part 181.Requirements for frequency protection functions; ---GB/T 14598.300 General technical requirements for transformer protection devices; ---GB/T 14598.301 Technical requirements for continuous recording devices in power systems; ---GB/T 14598.302 Technical requirements for arc protection devices; ---GB/T 14598.303 General technical requirements for digital integrated motor protection devices; ---GB/T 14598.1871 Measuring relays and protection devices Part 187-1.Functional requirements for differential protection of motors, Generator and transformer ratio restrained differential protection and differential quick-break protection. This document replaces GB/T 14598.26-2015 "Measuring relays and protection devices Part 26.Electromagnetic compatibility requirements" and Compared with GB/T 14598.26-2015, in addition to structural adjustments and editorial changes, the main technical changes are as follows. a) The referenced document IEC 61000-4-2 is changed to GB/T 17626.2-2018 (see item 5.2 in Table 5, Table 3 of the.2015 edition Item 3.2); b) The referenced document IEC 61000-4-3.2006 A1.2009 A2.2010 is changed to IEC 61000-4-3.2020 (see Table 5). Item 5.1, Item 3.1 in Table 3 of the.2015 Edition); c) The referenced document IEC 61000-4-4 is changed to GB/T 17626.4-2018 (see item 6.2 in Table 6 and item 6.3 in Table 7). 7.2, Item 8.2 in Table 8, Item 9.2 in Table 9, Item 4.2 in Table 4 of the.2015 edition, Item 5.2 in Table 5, Item 6.2 in Table 6, Item 7.2 in Table 7); d) The referenced document GB/T 17626.5-2008 is changed to GB/T 17626.5-2019 (see item 6.4 in Table 6, item Item 7.4, Item 8.4 in Table 8, Item 4.4 in Table 4, Item 5.4 in Table 5, Item 6 in the.2015 edition 6.4); e) The referenced document IEC 61000-4-6 is changed to GB/T 17626.6-2017 (see item 6.1 in Table 6, item 6.2 in Table 7). 7.1, Item 8.1 in Table 8, Item 9.1 in Table 9, Item 4.1 in Table 4 of the.2015 edition, Item 5.1 in Table 5, Item 6.1 in Table 6, Item 7.1 in Table 7); f) The referenced document GB/T 17626.11-2008 is changed to IEC 61000-4-11.2020 (see items 6.5 and 6.6 in Table 6, Items 4.5 and 4.6 in Table 4 of the.2015 edition); g) Reference document IEC 61000-4-16.1998 A2.2009 is changed to IEC 61000-4-16.2015 (see items in Table 8) 8.5, item 6.5 in Table 6 of the.2015 edition); h) The referenced document IEC 61000-4-18.2006 A1.2010 is changed to IEC 61000-4-18.2019 (see items in Table 6 6.3, Item 7.3 in Table 7, Item 8.3 in Table 8, Item 4.3 in Table 4 of the.2015 edition, Item 5.3 in Table 5, Item 6.3 in Table 6); i) The referenced document CISPR11.2009 is changed to CISPR11.2024 (see item 1.1 in Table 1, item 2.2 in Table 1 of the.2015 edition). Item 1.1); j) The referenced document CISPR22.2008 is changed to CISPR32.2015 (see item 1.2 in Table 1, item 3.1 in Table 3, Items 4.1 and 4.2 in Table 4, Item 1.2 in Table 1 and Item 2.1 in Table 2 of the.2015 edition); k) Added terms and definitions for signal/control ports and wired network ports that meet CISPR32 (see 3.1.25, 3.1.27); l) Added terms and definitions for battery monitoring port (LPIT) and low power transformer (see 3.1.4, 3.1.18); m) Changed the test frequency of RF electromagnetic field radiation immunity, and the maximum test frequency was increased to 6 GHz (see item 5.1 in Table 5, Item 3.1 in Table 3 of the.2015 edition); n) Changed the test requirements for electrostatic discharge. The test configuration requires the test to be carried out at the minimum auxiliary excitation level (see Table 12,.2015 Edition Table 10); o) Added the fast damped oscillatory wave test applicable to location A (see item 6.3 in Table 6, item 7.3 in Table 7, item 8. Item 8.3); p) The test level for power frequency magnetic field immunity has been changed, and the level applicable to Class A environment has been added (see item 5.3 in Table 5, Item 3.3 in Table 3 of the.2015 edition); q) Changed the frequency points of the test for RF electromagnetic field radiation immunity and RF field induced conducted disturbance immunity (see Item 5.1 in Table 5, Item 6.1 in Table 6, Item 7.1 in Table 7, Item 8.1 in Table 8, Item 9.1 in Table 9, Item 3.1 in Table 3, Item 4.1 in Table 4, Item 5.1 in Table 5, Item 6.1 in Table 6, Item 7 in Table 8 of the.2015 edition Item 7.1); r) Added test conditions for AC voltage sag and interruption, and specified that the test be performed according to different test phases (see Table 22). This document is modified to adopt IEC 60255-26.2023 "Measuring relays and protection devices Part 26.Electromagnetic compatibility requirements". This document has made the following structural adjustments compared to IEC 60255-26.2023. --- Adjust the original Appendix C to Appendix B, and adjust the original Appendix B to Appendix A. The technical differences between this document and IEC 60255-26.2023 and their reasons are as follows. --- In order to meet domestic testing requirements, 100kHz damped oscillation wave immunity is added to 6.3 of Table 6, 7.3 of Table 7, and 8.3 of Table 8. The test frequency is consistent with the requirements of GB/T 17626.18-2016; --- In order to meet domestic testing requirements, 5.2 of Table 5 adds electrostatic discharge immunity of contact discharge 8kV and air discharge 15kV The test voltage is consistent with the requirements of GB/T 17626.2-2018; --- In order to meet domestic testing needs, electrical fast transient pulses are added to 6.2 of Table 6, 7.2 of Table 7, 8.2 of Table 8, and 9.2 of Table 9. The 100kHz test frequency for impulse immunity is consistent with the requirements in GB/T 17626.4-2018; --- The referenced document CISPR11.2015 in Table 1 and Table 10 has been abolished and revised to CISPR11.2024. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the 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 for Standardization of Measuring Relays and Protection Equipment (SAC/TC154). The main drafting units of this document are. Xuchang Cape Testing Research Institute Co., Ltd., State Grid Corporation of China National Electric Power Dispatching and Control Center Center, Beijing Qingneng Relay Control Technology Group Co., Ltd., Xuchang Cape Electric Research Institute Co., Ltd., Zhuhai Cape Testing Technology Co., Ltd., Huazhong University of Science and Technology, Changyuan Shenzhen Ruijibao Automation Co., Ltd., Xuji Electric Co., Ltd., Nanjing Nanrui Jibao Electric Co., Ltd., Beijing Fangjibao Engineering Technology Co., Ltd., Guodian Nanjing Automation Co., Ltd., Dongfang Electronics Co., Ltd., Guodian Nanrui Technology Co., Ltd. Co., Ltd., China Electric Power Research Institute Co., Ltd., State Grid Jiangsu Electric Power Co., Ltd. Nanjing Power Supply Branch, Yunnan Electric Power Test Research Institute Institute (Group) Co., Ltd., State Grid Hebei Electric Power Company, Zhuhai Wanlida Electric Automation Co., Ltd., Shanghai Huajian Electric Power Equipment Co., Ltd. Co., Ltd., Jiangsu Jinzhi Technology Co., Ltd., ABB (China) Co., Ltd., China Three Gorges Corporation, State Grid Corporation of China Science Research Institute Co., Ltd. and Siyuan Electric Co., Ltd. The main drafters of this document are. Yang Xingchao, Wei Zun, Ge Rongshang, Chu Yang, Yin Xianggen, Liu Hongjun, Wang Zhenhua, Chen Zhifeng, Hu Jiong, Zhang Yao, Zhao Hongqiang, Xia Yu, Dong Xuecheng, Chen Hao, Ding Xinzhi, Bai Lina, Zhu Zhiwei, Wang Qi, Shen Jun, Li Yan, Chang Yong, Wu Ke, Sha Jing, Chen Xiyan. The previous versions of this document and the documents it replaces are as follows. ---First published in.2002 as GB/T 14598.9-2002, first revised to GB/T 14598.9-2010 in.2010, second revised to GB/T 14598.9-2015 The second revision is GB/T 14598.26-2015, which also incorporates GB/T 14598.10-2012, GB/T 14598.11-2011, GB/T 14598.13-2008, GB/T 14598.14-2010, GB/T 14598.16-2002, GB/T 14598.17- 2005, GB/T 14598.18-2007, GB/T 14598.19-2007, GB/T 14598.20-2007. ---This is the third revision.

Introduction

The IEC 60255 series of standards specifies the technical requirements and power system solutions for measuring relays and protection devices, as well as related IEC 60255-1~IEC 60255-99 specifies the basic general requirements for relays and protection devices. Requirements, mainly including basic functions, mechanical properties, electromagnetic compatibility performance, product safety requirements, common format for transient data exchange, etc.; IEC 60255-100~IEC 60255-199 specifies frequency protection, overcurrent/undercurrent protection, overvoltage/undervoltage protection, and distance protection. Functional performance requirements and test methods of major protection modules such as IEC 60255-200~IEC 60255-299 in the form of technical reports A special study was conducted and the technical requirements for other protection equipment and related control, monitoring and process interface equipment were specified. The purpose of formulating GB/T 14598 is to stipulate unified principles that are consistent with the above characteristics. These principles are applicable to power generation, transmission and distribution systems. Measuring relays and protection devices used in systems. GB/T 14598 currently consists of 18 parts. --- Part 1.General requirements for measuring relays and protection devices. The purpose is to specify measuring relays and protection devices and the General rules and requirements for power system protection schemes consisting of these devices such as control, monitoring and process interface equipment. --- Part 3.Insulation coordination requirements and tests for measuring relays and protection devices. The purpose is to specify the insulation coordination requirements for measuring relays and protection devices. General requirements for insulation coordination of devices, including how to select electrical clearances and creepage distances, voltage tests, insulation resistance measurements, etc. --- Part 8.Protection system. The purpose is to specify the performance requirements of the entire protection system and its components, applicable to all types of protection Protective devices and devices connected to the protective devices that have an impact on them. --- Part 23.Earthquake test. The purpose is to specify the test methods, test conditions, Test severity levels, test procedures and acceptance criteria. --- Part 24.Common format for power system transient data exchange (COMTRADE). The purpose is to define a common data Interchange format, used to store data files and exchange media for various types of faults, tests, and simulations. Defines the general purpose of data exchange format, which is conducive to improving the analysis, testing, evaluation and simulation of power systems and their protection and control measures under fault disturbance conditions. Automated level. --- Part 26.Electromagnetic compatibility requirements. The purpose is to specify the electromagnetic compatibility requirements for measuring relays and protection devices, including electromagnetic Emissions and Immunity. --- Part 27.Product safety requirements. The purpose is to specify the basic safety requirements for measuring relays and protection devices so that The risk of fire, electric shock or injury to the user is minimized. This standard also applies to devices used with measuring relays and protective devices Test and auxiliary devices used. --- Part 118.Power system synchronized phasor measurement. The purpose is to specify the performance classification of synchronized phasor measurement and the performance of each performance Evaluation methods and performance indicators for steady-state performance and dynamic performance of energy categories. --- Part 121.Distance protection functional requirements. The purpose is to specify the functions and performance evaluation of distance protection on power system lines. minimum requirements for pricing, and how performance test results should be recorded and published. --- Part 127.Over/undervoltage protection function requirements. The purpose is to specify the minimum requirements for over/undervoltage relays, including protection Specifications of functions, measurement characteristics and delay characteristics. --- Part 149.Functional requirements for electric thermal relays. The purpose is to specify the minimum requirements for electric thermal relays, including protection functions, measurement Specifications for quantitative characteristics and test methods. --- Part 151.Over/under current protection function requirements. The purpose is to specify the minimum requirements for over/under current relays, including protection Specifications of functions, measurement characteristics and delay characteristics. --- Part 181.Frequency protection function requirements. The purpose is to specify the minimum requirements for frequency protection functions and performance evaluation, and to record Methods for recording and publishing performance test results. --- Part 300.General technical requirements for transformer protection devices. The purpose is to specify the technical requirements, test Methods, inspection rules, marking and labeling, packaging, transportation and storage requirements, etc. --- Part 301.Technical requirements for continuous recording devices in power systems. The purpose is to specify the technical requirements for continuous recording devices in power systems. Requirements, test methods, inspection rules, marking labels, packaging, transportation and storage requirements, etc. --- Part 302.Technical requirements for arc protection devices. The purpose is to specify the technical requirements, test methods, inspection and Inspection rules, marking and labeling, packaging, transportation and storage requirements. --- Part 303.General technical requirements for digital motor integrated protection devices. The purpose is to specify the general technical requirements for digital motor integrated protection devices. General technical requirements, test methods, inspection rules, marking labels, packaging, transportation and storage requirements for protective devices. --- Part 1871.Functional requirements for differential protection of motors, generators and transformers Ratio brake differential protection and differential quick-break Protection. The purpose is to define the functions and performance of (longitudinal) differential protection for AC motors, generators and transformers. Minimum requirements for evaluation. This document provides for the electromagnetic compatibility performance and test methods of measuring relays and protection devices and related control, monitoring and process interface equipment. The law puts forward more detailed requirements, which is conducive to promoting the technological progress of equipment manufacturers, improving product quality, integrating into the international standard trade system, and facilitating Channels for products to enter the international market; guide third-party testing agencies to carry out relevant testing activities; facilitate end users to select products that meet their technical requirements Requested product. Measuring relays and protection devices Part 26.Electromagnetic compatibility requirements

1 Scope

1.1 Overview This document specifies the electromagnetic compatibility requirements for measuring relays and protection devices. Electrical and protective devices, including control, monitoring, communication and process interface equipment used with these devices. For devices not containing electronic circuits, such as electromechanical relays, the tests specified in this document are not required. The requirements of this document apply to representative measuring relays and protection devices supplied by the manufacturer. All tests specified For type testing only. 1.2 Launch This document specifies limits and test methods for electromagnetic emissions from measuring relays and protection devices that may cause interference to other equipment. The emission limits chosen in this document indicate the requirements for electromagnetic compatibility to ensure that measuring relays operating in substations and power plants The disturbance generated by the protection device will not exceed the specified test level and hinder the normal operation of other equipment. These test requirements are for measuring the housing ports, auxiliary power ports, input/output ports, signal/control ports of relays and protection devices. port and wired network port. 1.3 Immunity This document specifies the measurement of relays and protective devices related to continuous and transient conducted disturbances, radiated disturbances and electrostatic discharges. Immunity test requirements. These test requirements specify the electromagnetic compatibility immunity requirements to ensure the proper operation of measuring relays and The protection device has an adequate level of immunity. NOTE 1 Product safety considerations are not included in this document. NOTE 2 In special cases, if the disturbance level exceeds the level specified in this document, for example a portable transmitter or a mobile phone is close to the measurement Where relays and protection devices are used, some special precautions must be taken.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 14598.2-2025 Measuring relays and protection devices Part 1.General requirements (IEC 60255-1.2022, IDT) GB/T 17626.2-2018 Electromagnetic compatibility test and measurement technology Electrostatic discharge immunity test (IEC 61000-4-2.2008, IDT) GB/T 17626.3-2023 Electromagnetic compatibility test and measurement technology Part 3.Radio frequency electromagnetic field radiation immunity test (IEC 61000-4-3.2020,IDT) GB/T 17626.4-2018 Electromagnetic compatibility test and measurement technology Electrical fast transient pulse group immunity test (IEC 61000- 4-4.2012,IDT)

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