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GB/T 31723.412-2021 English PDF

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GB/T 31723.412-2021: Metallic communication cable test methods - Part 4-12: Electromagnetic compatibility (EMC) - Coupling attenuation or screening attenuation of connecting hardware - Absorbing clamp method
Status: Valid
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GB/T 31723.412-2021English204 Add to Cart 3 days [Need to translate] Metallic communication cable test methods - Part 4-12: Electromagnetic compatibility (EMC) - Coupling attenuation or screening attenuation of connecting hardware - Absorbing clamp method Valid GB/T 31723.412-2021

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Standard similar to GB/T 31723.412-2021

GB/T 17737.104   GB/T 17738.1   GB/T 17738.2   GB/T 31723.414   GB/T 31723.413   GB/T 31723.411   

Basic data

Standard ID GB/T 31723.412-2021 (GB/T31723.412-2021)
Description (Translated English) Metallic communication cable test methods - Part 4-12: Electromagnetic compatibility (EMC) - Coupling attenuation or screening attenuation of connecting hardware - Absorbing clamp method
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard L26
Word Count Estimation 10,164
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 31723.412-2021: Metallic communication cable test methods - Part 4-12: Electromagnetic compatibility (EMC) - Coupling attenuation or screening attenuation of connecting hardware - Absorbing clamp method



---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.
Metallic communication cable test methods -- Part 4-12: Electromagnetic compatibility (EMC) -- Coupling attenuation or screening attenuation of connecting hardware -- Absorbing clamp method ICS 33:120:10 L26 National Standards of People's Republic of China Test methods for metallic communication cables Part 4-12: Electromagnetic compatibility of connecting hardware Coupling attenuation or shielding attenuation absorption clamp method (IEC 62153-4-12:2009, IDT) Published on 2021-12-31 2022-07-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration

foreword

The electromagnetic compatibility part of GB/T 31723 "Test methods for metallic communication cables" has released the following parts: --- Part 4-5: Electromagnetic compatibility coupling or shielding attenuation absorption clamp method; --- Part 4-6: Electromagnetic compatibility surface transfer impedance line injection method; --- Part 4-11: Coupling attenuation or shielding attenuation absorption of electromagnetic compatibility jumpers, coaxial cable assemblies, and connectorized cables clamp method; --- Part 4-12: Coupling attenuation or shielding attenuation absorption clamp method of electromagnetic compatibility connecting hardware; --- Part 4-13: Coupling attenuation absorption clamp method for electromagnetic compatibility links and channels (laboratory conditions); --- Part 4-14: Coupling attenuation absorption clamp method for electromagnetic compatibility cable assemblies (field conditions): This part is part 4-12 of GB/T 31723: This section is drafted in accordance with the rules given in GB/T 1:1-2009: This section uses the translation method equivalent to IEC 62153-4-12:2009 "Test methods for metallic communication cables - Part 4-12: Electromagnetic and Coupling or Shielding Attenuation Absorption Clamping of Capacitive Connection Hardware: The Chinese documents that have consistent correspondence with the international documents normatively cited in this part are as follows: ---GB/T 14733:2-2008 Telecommunications Terminology Transmission Lines and Waveguides [IEC 60050-726:1982, IDT]; ---GB/T 17737:1-2013 Coaxial Communication Cable Part 1: General Specifications General Rules, Definitions and Requirements (IEC 61196-1: 2005, IDT): The following editorial changes have been made to this section: ---According to the order of appearance in the text, the positions of footnotes c and d in Table 1 are exchanged; --- The fourth paragraph of 4:1:3:1 and the "jumper wire" in 4:5 are corrected to "connect the hardware": Please note that some content of this document may be patented: The issuing authority of this document assumes no responsibility for identifying these patents: This part is proposed by the Ministry of Industry and Information Technology of the People's Republic of China: This part is under the jurisdiction of the National Standardization Technical Committee of High Frequency Cables and Connectors for Electronic Equipment (SAC/TC190): This section was drafted by: China Electronics Standardization Institute, Shenzhen Kingsignal High-tech Co:, Ltd: The main drafters of this section: Tian Xin, Wu Zhengping, Li Jun: Test methods for metallic communication cables Part 4-12: Electromagnetic compatibility of connecting hardware Coupling attenuation or shielding attenuation absorption clamp method

1 Scope

This part of GB/T 31723 describes the coupling or shielding attenuation test method for connecting hardware for analog and digital communication systems: This section applies to testing single connection hardware (for example: a separate wall socket or plug), also applies to testing connection hardware plug match:

2 Normative references

The following documents are essential for the application of this document: For dated references, only the dated version applies to this article pieces: For undated references, the latest edition (including all amendments) applies to this document: GB/T 31723:405-2015 Test methods for metallic communication cables Part 4-5: Electromagnetic compatibility coupling or shielding attenuation absorption Clamping method (IEC 62153-4-5:2006, IDT) IEC 60050-726 International Electrotechnical Vocabulary Part 726: Transmission lines and waveguides (International Electrotechnical Vo- cabulary-Part 726: Transmissionlinesandwaveguides) IEC 61196-1 Coaxial Communication Cables Part 1: General Specifications General, Definitions and Requirements (Coaxialcommunicationca- bles-Part 1:Genericspecification-General,definitionsandrequirements) ITU-T Recommendation G:117:1996 Unbalanced transmission to ground (Transmissionaspectsofunbalanceabout earth) ITU-T RecommendationO:9:1999 Test configuration for evaluating unbalance to ground (Measuringarrangementsto assessthedegreeofunbalanceaboutearth)

3 Terms and Definitions

Terms and definitions defined in IEC 60050-726 and IEC 61196-1 apply to this document: Connection hardware is defined in this section as a complete connection including compensation or matching networks (if any), connectors and cable terminations connection device:

4 Test methods

4:1 Equipment 4:1:1 General See 5:1:1 in GB/T 31723:405-2015 and Figure 1 in this section: The connection hardware to be tested shall be terminated with a termination method and a cable compatible with its construction: If only a part of the connected hardware is measured If it is divided, a test port should be used to insert the part under test:

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