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GB/T 17737.126-2026: Coaxial communication cables - Part 1-126: Electrical test methods - Corona extinction voltage
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Coaxial communication cables - Part 1-126: Electrical test methods - Corona extinction voltage
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Basic data | Standard ID | GB/T 17737.126-2026 (GB/T17737.126-2026) | | Description (Translated English) | Coaxial communication cables - Part 1-126: Electrical test methods - Corona extinction voltage | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | L26 | | Classification of International Standard | 33.120.10 | | Word Count Estimation | 14,173 | | Date of Issue | 2026-02-27 | | Date of Implementation | 2026-09-01 | | Issuing agency(ies) | State Administration for Market Regulation, Standardization Administration of China | GB/T 17737.126-2026: Coaxial communication cables - Part 1-126: Electrical test methods - Corona extinction voltage
---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 33.120.10
CCSL26
National Standards of the People's Republic of China
Coaxial communication cable, Parts 1-126.
Electrical test method for corona suppression voltage
(IEC 61196-1-126.2022, IDT)
Published on 2026-02-27
Implemented on 2026-09-01
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
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 1-126 of GB/T 17737 "Coaxial Communication Cables". GB/T 17737 has the following parts published.
---Part 1.General Specifications, Definitions, and Requirements.
● Part 1-100.General requirements for electrical test methods;
● Part 1-101.Electrical Test Methods - DC Resistance Test of Conductors;
● Part 1-102.Electrical Test Methods - Cable Dielectric Insulation Resistance Test;
● Part 1-103.Electrical Test Methods - Capacitance Test of Cables;
● Part 1-104.Electrical Test Methods - Capacitive Stability Test of Cables;
● Part 1-105.Electrical Test Methods - Withstand Voltage Test of Cable Dielectric;
● Part 1-106.Electrical Test Methods - Withstand Voltage Test of Cable Sheath;
● Part 1-107.Electrical Test Methods. Cable Flicker Charge Level (Mechanical Induced Noise) Test;
● Part 1-108.Electrical test methods for characteristic impedance, phase delay, group delay, electrical length, and propagation velocity tests;
● Parts 1-110.Continuity testing of electrical test methods;
● Part 1-112.Electrical Test Methods - Return Loss (Impedance Compliance) Test;
● Part 1-113.Electrical test methods for attenuation constant testing;
● Part 1-115.Electrical Test Methods - Impedance Uniformity (Pulse/Step Function Return Loss) Test;
● Part 1-116.Electrical test methods for measuring impedance using time-domain reflectometry (TDR);
● Part 1-119.Electrical test methods for radio frequency power of coaxial cables and cable assemblies;
● Part 1-122.Electrical Test Methods - Crosstalk Test Between Coaxial Cables;
● Part 1-126.Electrical test methods - corona suppression voltage;
● Part 1-200.General requirements for environmental testing methods;
● Part 1-201.Environmental testing methods for cold bending performance of cables;
● Part 1-203.Environmental Testing Methods - Water Leakage Test for Cables;
● Part 1-205.Environmental testing methods for resistance to solvents and contaminated liquids;
● Part 1-209.Environmental testing methods - thermal cycling;
● Part 1-215.Environmental testing methods for high-temperature aging of cables;
● Part 1-301.Mechanical testing methods for ellipticity testing;
● Part 1-302.Mechanical testing methods for eccentricity testing;
● Part 1-308.Mechanical testing methods for testing the tensile strength and elongation of copper-clad metals;
● Part 1-310.Mechanical testing methods - Torsional properties test of copper-clad metals;
● Part 1-313.Mechanical testing methods for adhesion of media and sheaths;
● Part 1-314.Mechanical Test Methods - Bending Test of Cables;
● Part 1-316.Mechanical Test Methods - Maximum Tensile Strength Test of Cables;
● Part 1-317.Mechanical Test Methods - Cable Compression Test;
● Part 1-318.Mechanical testing methods for thermal performance testing;
● Part 1-324.Mechanical Test Methods - Cable Abrasion Resistance Test;
● Part 1-325.Mechanical testing methods. wind-induced vibration test.
---Part 3.Specifications for Coaxial Cables for Local Area Networks
---Part 4.Specifications for Leaky Cables
---Part 5.Specifications for CATV trunk and distribution cables.
---Part 8.Specifications for Polytetrafluoroethylene Insulated Semi-Flexible Cables.
● Part 8-1.Blank detailed specification for polytetrafluoroethylene insulated semi-flexible cables.
---Part 9.Specifications for Flexible Radio Frequency Coaxial Cables
---Part 10.Specifications for Fluoropolymer Insulated Semi-rigid Cables
---Part 11.Specifications for Polyethylene Insulated Semi-rigid Cables
This document is equivalent to IEC 61196-1-126.2022 "Coaxial communication cables - Part 1-126.Electrical test methods".
Voltage".
The following minimal editorial changes have been made to this document.
---Correction. In Figure 3b), "sheath" should be corrected to "outer conductor";
---Correction. In Figure 5, “3---Fault Indicator” should be corrected to “3---Fault Indicator and Partial Discharge Free Adapter”.
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 Ministry of Industry and Information Technology of the People's Republic of China.
This document is under the jurisdiction of the National Technical Committee on Standardization of High-Frequency Cables and Connectors for Electronic Equipment (SAC/TC190).
This document was drafted by. Shenzhen Jinshengno High-Tech Co., Ltd., China Electronics Technology Standardization Institute, and China Electronics Technology Group Corporation.
The 40th Research Institute of the Group Corporation, the 23rd Research Institute of China Electronics Technology Group Corporation, AVIC Optoelectronic Technology Co., Ltd., and Shanghai Aerospace...
Tianke Electric Research Institute Co., Ltd., Shandong Guolan Testing Technology Co., Ltd., Shaanxi Huada Technology Co., Ltd., Dongguan Jinxinno Electric
Subsidiary Limited Company.
The main drafters of this document are. Li Fang, Gui Hongbing, Yang Fan, Li Liuan, Tang Jun, Duan Rui, Cui Wenjun, Yin Haicheng, Pan Qian, Wang Yanghu, and Guo Yan.
Gong Liu, Zhuo Yue, Wang Qian.
Introduction
Coaxial communication cables have advantages such as low transmission loss and good electromagnetic interference resistance, and are widely used in various communication and electronic equipment.
External information transmission lines are used in fields such as communications, broadcasting, radar, electronic warfare, and data buses.
GB/T 17737 "Coaxial Communication Cables" covers the terminology, design, materials, test methods, and various types of coaxial communication cables.
The requirements for the structure and materials of the communication cable, technical requirements, quality assurance regulations, packaging, transportation, storage and engineering usage data, etc.
Various electrical test method standards, GB/T 17737.2×× (Parts 1-2××) are for various environmental test method standards,
Product specifications. Product specifications are developed by referencing the general requirements of the general specification, as well as relevant test method standards.
GB/T 17737 is proposed to consist of the following parts.
---Part 1.General Specifications, Definitions, and Requirements, intended to specify the general principles, definitions, and requirements for the design and testing of coaxial cables.
Require.
● Part 1-100.General requirements for electrical test methods;
● Part 1-101.Electrical Test Methods - DC Resistance Test of Conductors;
● Part 1-102.Electrical Test Methods - Cable Dielectric Insulation Resistance Test;
● Part 1-103.Electrical Test Methods - Capacitance Test of Cables;
● Part 1-104.Electrical Test Methods - Capacitive Stability Test of Cables;
● Part 1-105.Electrical Test Methods - Withstand Voltage Test of Cable Dielectric;
● Part 1-106.Electrical Test Methods - Withstand Voltage Test of Cable Sheath;
● Part 1-107.Electrical Test Methods. Cable Flicker Charge Level (Mechanical Induced Noise) Test;
● Parts 1-108.Electrical Test Methods - Phase, Phase Constant, Phase Delay and Group Delay, Propagation Velocity, Electrical Length and...
Uniform characteristic impedance test;
● Parts 1-110.Continuity testing of electrical test methods;
● Part 1-111.Electrical Test Methods - Phase Stability Test Methods;
● Part 1-112.Electrical test methods for return loss and voltage standing wave ratio (VSWR) testing;
● Part 1-113.Electrical test methods for attenuation constant testing;
● Part 1-114.Electrical Test Methods - Inductance Test;
● Part 1-115.Electrical Test Methods - Impedance Uniformity (Pulse/Step Function Return Loss) Test;
● Part 1-116.Electrical test methods for measuring impedance using time-domain reflectometry (TDR);
● Part 1-119.Electrical test methods for radio frequency power of coaxial cables and cable assemblies;
● Part 1-122.Electrical Test Methods - Crosstalk Test Between Coaxial Cables;
● Part 1-123.Electrical Test Methods - Attenuation Constant Test for Leaky Cables;
● Part 1-124.Electrical Test Methods - Coupling Loss Test for Leaky Cables;
● Parts 1-125.Electrical test methods for equivalent relative permittivity and equivalent dielectric loss factor tests;
● Part 1-126.Electrical test methods - corona suppression voltage;
● Part 1-127.Electrical test methods for link loss in leaky cables;
● Part 1-128.Electrical test methods for the polarization directionality of leaky cables;
● Part 1-129.Electrical test methods for link loss balance in leaky cables;
● Part 1-200.General requirements for environmental testing methods;
● Part 1-201.Environmental testing methods for cold bending performance of cables;
● Part 1-203.Environmental Testing Methods - Water Leakage Test for Cables;
● Part 1-205.Environmental testing methods for resistance to solvents and contaminated liquids;
● Parts 1-206.Climatic Sequence of Environmental Testing Methods;
● Part 1-208.Environmental testing methods - longitudinal pressure resistance;
● Part 1-209.Environmental testing methods - thermal cycling;
● Part 1-212.UV stability of environmental testing methods;
● Part 1-215.Environmental testing methods for high-temperature aging of cables;
● Part 1-301.Mechanical testing methods for ellipticity testing;
● Part 1-302.Mechanical testing methods for eccentricity testing;
● Part 1-303.Mechanical testing methods for testing the thickness of silver and tin plating;
● Part 1-304.Mechanical testing methods for impact resistance;
● Part 1-305.Mechanical testing methods for weldability and resistance to weld heat;
● Part 1-308.Mechanical testing methods for testing the tensile strength and elongation of copper-clad metals;
● Part 1-310.Mechanical testing methods - Torsional properties test of copper-clad metals;
● Part 1-313.Mechanical testing methods for media and sheath adhesion;
● Part 1-314.Mechanical Test Methods - Bending Test of Cables;
● Part 1-316.Mechanical Test Methods - Maximum Tensile Strength Test of Cables;
● Part 1-317.Mechanical Test Methods - Cable Compression Test;
● Part 1-318.Mechanical testing methods for thermal performance testing;
● Part 1-324.Mechanical Test Methods - Cable Abrasion Resistance Test;
● Part 1-325.Mechanical testing methods. wind-induced vibration test.
---Part 3.Specifications for Coaxial Cables for Local Area Networks. The purpose is to define the characteristics and versatility of coaxial communication cables for local area networks.
Requirements, quality assessment procedures, testing and evaluation methods, and recommended ratings.
---Part 4.Leaky Cable Specifications. The purpose is to specify the characteristics and general performance requirements, and quality assessment of leaky coaxial communication cables.
Define procedures, testing and experimental methods, and recommended ratings.
---Part 5.Specifications for CATV Trunk and Distribution Cables. The purpose is to specify the trunk and distribution cables used for cable television (CATV) trunk lines and distribution cables.
Characteristics and general performance requirements, quality assessment procedures, testing and evaluation methods, and recommendations for CATV coaxial communication cables.
The rated value.
---Part 6.Specifications for Cable Television (CATV) Drop Cables. The purpose is to specify the specifications for coaxial communication cables used in CATV drop cables.
Characteristics and general performance requirements, quality assessment procedures, testing and evaluation methods, and recommended ratings.
---Part 7.Specifications for Cables Used in BCT. The purpose is to specify the characteristics and general performance requirements of coaxial communication cables used in BCT.
Quality assessment procedures, testing and evaluation methods, and recommended ratings.
---Part 8.Specifications for PTFE Insulated Semi-Flexible Cables. The purpose is to specify the specifications for PTFE insulated semi-flexible coaxial cables.
Cable characteristics and general performance requirements, quality assessment procedures, testing and evaluation methods, and recommended ratings.
● Part 8-1.Blank Detailed Specification for PTFE Insulated Semi-Flexible Cables. The purpose is to specify the specifications for PTFE insulated semi-flexible cables.
Detailed specifications and requirements for flexible coaxial communication cables.
---Part 9.Specifications for Flexible Radio Frequency Coaxial Cables. The purpose is to define the characteristics and versatility of flexible radio frequency coaxial communication cables.
Requirements, quality assessment procedures, testing and evaluation methods, and recommended ratings.
---Part 10.Specifications for Fluoropyramid Insulated Semi-rigid Cables. The purpose is to specify the specifications for fluoropolymer insulated semi-rigid coaxial communication cables.
Cable characteristics and general performance requirements, quality assessment procedures, testing and evaluation methods, and recommended ratings.
---Part 11.Specifications for Polyethylene Insulated Semi-rigid Coaxial Cables. The purpose is to specify the characteristics of polyethylene insulated semi-rigid coaxial communication cables.
And general performance requirements, quality assessment procedures, testing and evaluation methods, and recommended ratings.
---Part 13.Specifications for Silica-Insulated Semi-Rigid Coaxial Cables. The purpose is to specify the characteristics of silica-insulated semi-rigid coaxial cables.
And general performance requirements, quality assessment procedures, testing and evaluation methods, and recommended ratings.
Coaxial communication cable, Parts 1-126.
Electrical test method for corona suppression voltage
1 Scope
This document describes the test method for the corona (partial discharge) voltage of coaxial communication cables under specified environmental conditions.
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.
chargemeasures)
Note. GB/T 7354-2018 High Voltage Testing Techniques - Partial Discharge Measurement (IEC 60270.2000, MOD)
Note. GB/T 17737.1-2013 Coaxial communication cables - Part 1.General specifications, definitions and requirements (IEC 61196-1.2005, IDT)
3 Terms and Definitions
The terms and definitions defined in IEC 61196-1 and the following terms and definitions apply to this document.
The URLs for the terminology databases maintained by ISO and IEC for standardization are as follows.
3.1
The lowest voltage at which partial discharge (at least 5 pC or more) occurs when the test voltage is slowly increased between the inner and outer conductors of the cable [unit...].
Volt, RMS value (VRMS)].
3.2
When the voltage applied between the inner and outer conductors of the cable drops from the partial discharge initiation voltage (3.1) to the highest voltage at which partial discharge no longer occurs [single]
The value is volt, effective value (VRMS).
4.Sample Preparation
4.1 Flexible cable
The sample is prepared as follows.
a) Select a sample with a length of 0.6m to 1.5m (1m recommended) and peel off 75mm of sheath material from each end, as shown in Figure 1a).
b) Fold the shielding layer back onto the sheath and make adjustments, as shown in Figure 1b). Avoid breaking any shielding single wires. Secure the edges of the shielding layer.
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