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GBZ37627.3-2019 English PDF

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GBZ37627.3-2019: Radio interference characteristics of overhead power lines and high-voltage equipment -- Part 3: Code of practice for minimizing the generation of radio noise
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PDF similar to GBZ37627.3-2019


Standard similar to GBZ37627.3-2019

GB/T 37283   GB/T 38336   GB/T 37284   GB/Z 17624.8   GB/T 18655   GB/Z 37627.1   

Basic data

Standard ID GB/Z 37627.3-2019 (GB/Z37627.3-2019)
Description (Translated English) Radio interference characteristics of overhead power lines and high-voltage equipment -- Part 3: Code of practice for minimizing the generation of radio noise
Sector / Industry National Standard
Classification of Chinese Standard L06
Classification of International Standard 33.100.01
Word Count Estimation 38,391
Date of Issue 2019-06-04
Date of Implementation 2020-01-01
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GBZ37627.3-2019: Radio interference characteristics of overhead power lines and high-voltage equipment -- Part 3: Code of practice for minimizing the generation of radio noise


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GB /Z 37627.3-2019 Radio interference characteristics of overhead power lines and high-voltage equipment--Part 3. Code of practice for minimizing the generation of radio noise ICS 33.100.01 L06 National Standardization Technical Document of the People's Republic of China Overhead power lines and radios for high voltage equipment Interference characteristics Part 3. Reducing radio Noise to minimum implementation equipment-Part 3. Codeofpracticeforminimizingthegenerationofradionoise (CISPR/T R18-3..2010, IDT) Published on.2019-06-04 2020-01-01 implementation State market supervision and administration China National Standardization Administration issued

Content

Foreword III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Practical design of overhead power lines and related equipment to control radio broadcast and television reception interference 1 4.1 Overview 1 4.2 Wire Corona 1 4.3 Gold Corona 2 4.4 Insulator surface discharge 2 4.4.1 Clean or slightly polluted insulators 2 4.4.2 heavily polluted insulators 2 4.5 Sparks and microsparks generated by poor contact and commutation 4.6 Defects in the operation of power lines and related equipment 3 5 Prediction method for overhead line reference level 3 5.1 Overview 3 5.2 Interrelationship of the information given in other chapters of this section 4 5.3 International Large Power Grid Conference (CIGRE) Formula 4 5.4 80% level determination 5 5.5 Conclusion 5

6 Minimize prevention and remedial measures and poor contact points for radio noise caused by poor contact

Detection and positioning 5 6.1 Overview 5 6.2 Prevention and remedial measures 5 6.3 Detection and location methods for bad contact points 7 7 Multi-split conductors (above 4 splits) and tubular conductors for radio noise field strength prediction formula 8 7.1 Basic Principles 8 7.2 Calculation of corona radio noise field generated by multi-split conductors 9 7.2.1 Calculation process of radio noise field strength 9 7.2.2 Calculation of the excitation function under heavy rain conditions 9 7.2.3 Calculating the correction factor of the excitation function under different weather conditions 9 7.2.4 Calculation of radio noise field strength 10 7.3 Calculation of radio noise field strength of large tubular conductors 10 8 Figure 11 Appendix A (informative) The prediction formula for the radio noise field strength of overhead line conductors 19 Appendix B (informative) Predictive analysis procedure for radio noise field strength at a given distance from a multi-split conductor overhead line 27 Reference 32

Foreword

GB /Z 37627 "Radio Interference Characteristics of Overhead Power Lines and High Voltage Equipment" currently includes the following parts. --- Part 1. Description of the phenomenon; --- Part 3. Implementation procedures to minimize radio noise. This part is the third part of GB /Z 37627. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This section uses the translation method equivalent to CISPR/T R18-3.2010 "Radio interference for overhead power lines and high voltage equipment. Sexual Part 3. Code of Practice for Minimizing Radio Noise. The documents of our country that have a consistent correspondence with the international documents referenced in this part are as follows. ---GB/T 4365-2003 Electrotechnical terminology electromagnetic compatibility [IEC 60050 (161)..1990, IDT] ---GB/T 11604-2015 High-frequency electrical equipment radio interference test method (IEC /T RCISPR18-2.2010, MOD) --- GB /Z 37627.1-2019 Radio interference characteristics of overhead power lines and high-voltage equipment - Part 1 (CISPR/T R18-1..2010, MOD) This part is proposed and managed by the National Radio Interference Standardization Technical Committee (SAC/TC79). This section was drafted. China Electric Power Research Institute Co., Ltd., Shanghai Electric Apparatus Research Institute, Xi'an High Voltage Electric Apparatus Research Institute Responsible company, State Grid Co., Ltd., China National Accreditation Center for Conformity Assessment. The main drafters of this section. Yan Xiong, Li Ni, Liu Yuan, Liu Wei, Chen Di, Wang Meishun, Lu Yao, Liu Xingfa, Cui Dong, Hao Yuliang, Zhang Jiangong, Zhang Yemao, Xie Huichun, Gan Yuyuan, Zhou Bing. Overhead power lines and radios for high voltage equipment Interference characteristics Part 3. Reducing radio Noise to minimum implementation

1 Scope

This part of GB /Z 37627 applies to overhead power lines and high-voltage equipment radio noise that may interfere with radio reception. Sound, excluding the field generated by the power line carrier signal. The frequency range involved is 0.15MHz~300MHz.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. IEC 60050-161 International Electrotechnical Vocabulary (IEV) Chapter 161. Electromagnetic Compatibility [International ElectrotechnicalVocab- Uryy(IEV)-Chapter161. Electromagneticcompatibility] CISPR/T R18-1.2010 Radio interference characteristics of overhead power lines and high-voltage equipment - Part 1. Profiles Interferencecharacteristicsofoverheadpowerlinesandhigh-voltageequipment-Part 1.Description Ofphenomena) CISPR/T R18-2.2010 Radio disturbance characteristics of overhead power lines and high-voltage equipment - Part 2. Methods and limits Determination program (Radiointerferencecharacteristicsofoverheadpowerlinesandhigh-voltageequipment- Part 2. Methodsofmeasurementandprocedurefordetermininglimits) ISO /IEC Guide 99 International Metrology Glossary and General Concepts and Related Terms (VIM) [Internationalvocabu- laryofmetrology-Basicandgeneralconceptsandassociatedterms(VIM)] Note. Informational references are listed in the references.

3 Terms and definitions

The terms and definitions defined in IEC 60050-161 and ISO /IEC Guide 99 apply to this document.

4 Practical design of overhead power lines and related equipment to control radio broadcast and television reception interference

4.1 Overview This chapter provides technical guidance for the design, construction and operation of overhead power lines and related equipment to enable the various types of radios described in this section. The noise is kept within acceptable levels. 4.2 wire corona In the circuit design, the geometric parameters should be considered to ensure that the radio noise generated by the wire corona does not exceed the specified acceptable water. Flat, the most important parameters are the diameter of the wire and the number of splits per phase, other such as the distance between the phases, the height of the wire to the ground or the split wire

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