GB/T 26873-2025Spark tester (English PDF)
火花试验机
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
August 29, 2025
Implementation date
March 1, 2026
Scope
GB/T 26873-2025 is the English-translated version of 火花试验机.
GB/T 26873-2025 is the Chinese national standard covering the machine that tests cable insulation continuously as it comes off the line — the test voltage AC or DC and its accuracy, the electrode and the contact with the moving core, the fault detection and the response time at line speed, the counter, and the calibration. It replaces GB/T 26873-2011, under the China Electrical Equipment Industry Association. In force from 1 March 2026. Issued on 29 August 2025, it has been in force since 1 March 2026, replacing GB/T 26873-2011.
Document preview — GB/T 26873-2025
National Standard of the People's Republic of China
- ICS
- 29.120
- Classification
- K 97
- Replacing
- GB/T 26873-2011
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- PrefaceIII
- 1 Scope1
- 2 Normative references1
- 3 Terms and Definitions1
- 4 Model and structure1
- 4.1 Model1
- 4.2 Structure2
- 5 Technical Requirements2
- 5.1 Mechanical requirements2
- 5.2 Functional Requirements3
- 5.3 Measurement performance4
- 5.4 Electrical Requirements4
- 5.5 Climate conditions5
- 5.6 Reliability5
- 6 Test methods6
- 6.1 Test sequence6
- 6.2 Laboratory Environmental Conditions6
- 6.3 Test apparatus6
- 6.4 General Inspection7
- 6.5 Measurement performance test8
- 6.6 Electrical test9
- 6.7 Climate conditions test10
- 6.8 Reliability test10
- 7 Inspection Rules10
- 7.1 Factory Inspection10
- 7.2 Type inspection10
- 7.3 In-use inspection11
- 7.4 Inspection quantity11
- 7.5 Decision Rules11
- 7.6 Inspection items and inspection sequence11
- 8 Marking, packaging, transportation and storage12
- 8.1 Sign12
- 8.2 Packaging12
- 8.3 Transportation and storage12
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 replaces GB/T 26873-2011 Spark Tester. Compared with GB/T 26873-2011, except for structural adjustments and editorial In addition to the modifications, the main technical changes are as follows.
a) The term and definition of “spark tester” have been changed (see 3.1, 3.1 of the 2011 edition);
b) The terms “counter, basic insulation, reference voltage, reference frequency, grade index, percentage error, influence quantity, reference condition” are deleted.
components, distortion factor, reference temperature, rated operating conditions, operating range, operating limit range, type inspection" and their definitions (see 2011 edition 3.2~3.14, 3.16);
c) Added the “model and structure” requirements for spark testers (see Chapter 4);
d) The “Technical Requirements” has been changed (see Chapter 5, Chapter 5 of the 2011 edition);
e) The “Test Methods” has been changed (see Chapter 6, Chapter 6 of the 2011 edition);
f) The requirements for “Marking, Packaging, Transport and Storage” have been changed (see Chapter 8, Chapter 8 of the 2011 edition).
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 is proposed and coordinated by the China Electrical Equipment Industry Association.
This document was drafted by: Chongqing Metrology and Quality Inspection Institute, Beijing Institute of Electrical Engineering and Economics of Machinery Industry, China Quality Certification Center Co., Ltd., Chongqing Gepai Wire and Cable Co., Ltd., and Chongqing Taishan Cable Co., Ltd.
The main drafters of this document are Yuan Jing, Wang Fang, Hou Yao, Luo Hao, Meng Wei, Zeng Qiang, Wang Gang, and Xu Wenhao.
The previous versions of this document and the documents it replaces are as follows.
— First published in 2011 as GB/T 26873-2011;
— This is the first revision. Spark testing machine
1 Scope
This document specifies the model and structure, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of spark testing machines.
This document applies to power frequency spark testers and DC spark testers used for on-site testing of wire and cable production.
This document does not apply to pulse spark testers, high-frequency spark testers, spark leak detectors and spark testers for other purposes.
2 Normative references
GB/T 2423.1
GB/T 2423.2
GB/T 2423.4-2008
GB 4793.1-2007
GB/T 5398-2016
GB/T 6587
GB/T 9969
GB/T 11463
GB/T 16511
GB/T 23644
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
It is a special measuring equipment used for testing the insulation performance of cables, consisting of test electrodes, high-voltage power supply, detection control device, protective electrode, etc.
3.2
The position specified by the manufacturer for the instrument to operate normally.
4 Model and structure
4.1 Model
The spark tester model should meet the relevant requirements of GB/T 23644 and should be characterized by product code, characteristic code, main parameter/second main parameter, The modification code consists of four parts. The model composition is shown in Figure 1.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 5398-2016Test methods for large transport packages
- GB/T 6587General specification for electronic measuring instruments
- GB/T 9969General principles for preparation of instructions for use of industrial products
- GB/T 23644General specifications for electrical special equipment
GB/T 2423.1 · GB/T 2423.2 · GB/T 2423.4-2008 · GB 4793.1-2007 · GB/T 11463 · GB/T 16511
Editions of GB/T 26873
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 26873-2025 | Spark tester | current edition | Current |
| GB/T 26873-2011 | Spark tester | previous edition | In force |
This page sells the current edition, GB/T 26873-2025. Earlier editions are listed for reference only.
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Related Standards
GB/T 23644-2025 — General specifications for electrical special equipment
GB/T 2423.101-2025 — Environmental testing - Part 2: Test methods - Test: Inclinations and swings
GB/T 2423.102-2008 — Environmental testing for electric and electronic products - Part 2: Test methods - Test: combined temperature(cold and heat)/low air pressure/vibration (sinusoidal)
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