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Miniature fuses - Part 5: Guidelines for quality assessment of miniature fuse-links
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Basic data
| Standard ID | GB/T 9364.5-2025 (GB/T9364.5-2025) |
| Description (Translated English) | Miniature fuses - Part 5: Guidelines for quality assessment of miniature fuse-links |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | K31 |
| Classification of International Standard | 29.120.50 |
| Word Count Estimation | 18,141 |
| Date of Issue | 2025-12-31 |
| Date of Implementation | 2026-07-01 |
| Older Standard (superseded by this standard) | GB/T 9364.5-2011 |
| Issuing agency(ies) | State Administration for Market Regulation, Standardization Administration of China |
GB/T 9364.5-2025: Miniature fuses - Part 5: Guidelines for quality assessment of miniature fuse-links
---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 29.120.50
CCSK31
National Standards of the People's Republic of China
Replaces GB/T 9364.5-2011
miniature fuse
Part 5.Guidelines for Quality Assessment of Small Fuse Elements
(IEC 60127-5.2016, MOD)
Published on 2025-12-31
Implemented on July 1, 2026
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
Table of contents
Preface III
Introduction V
1.Scope 1
2 Normative References 1
3.Terms and Definitions 1
4.Batch-by-batch inspection 1
5.Periodic inspections 4.
Appendix A (Informative) Review Testing and Surveillance – Application Guidelines for the IEC EE03 (CB-FCS) Code for Miniature Fuses 6
Reference 11
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 5 of GB/T 9364 "Miniature Fuses". GB/T 9364 has already published the following parts.
---Part 1.Definition of Miniature Fuses and General Requirements for Miniature Fuse Elements;
---Part 2.Tubular fuses;
---Part 3.Miniature Fuses;
---Part 4.Universal Modular Fuse (UMF) - Through-hole and Surface Mount Types;
---Part 5.Guidelines for Quality Assessment of Small Fuse Elements;
---Part 6.Fuse Supports for Miniature Fuses;
---Part 7.Small fuses for special applications;
---Part 8.Fuse Resistors with Special Overcurrent Protection;
---Part 10.User Guide;
---Part 11.Fuses for LED Lighting
This document supersedes GB/T 9364.5-2011 "Miniature Fuses - Part 5.Guidelines for Quality Assessment of Miniature Fuse Elements".
Compared with GB/T 9364.5-2011, apart from structural adjustments and editorial changes, the main technical changes are as follows.
---Added a scope description for simplified type testing and lot-by-lot inspection (see Chapter 1);
---The requirements for the "collimation" test item in non-destructive testing have been changed, adding "(where applicable)"; electrical continuity has also been added.
Total AQL; added notes on inspection levels (see Table 1,.2011 edition);
---The requirements for destructive testing have been changed (see 4.3, 3.3 in the.2011 edition);
---The simplified type testing requirements have been changed (see Chapter 5, Chapter 5 of the.2011 edition).
This document is modified to adopt IEC 60127-5.2016 "Miniature fuses - Part 5.Guidelines for quality assessment of miniature fuse elements".
The technical differences between this document and IEC 60127-5.2016, and the reasons therefor, are as follows.
---Added. "This document specifies the batch-by-batch inspection, reliability and durability testing, and periodic inspection requirements for the quality assessment of small fuses."
The requirements must be met to comply with GB/T 1.1-2020 (see Chapter 1);
---The normative standard GB/T 9364.1-2015 has replaced IEC 60127-1.2006 and IEC 60127-1.2006/AMD2.
2015 and IEC 60127-1.2006 (see Chapters 3, 4 and 5) to adapt to my country's technical conditions and increase operability.
Actual nature;
---IEC 60127-2.2014 (see Chapters 4 and 5) has been replaced with the normatively referenced GB/T 9364.2-2018 to accommodate...
Improve my country's technological capabilities and increase operability;
---IEC 60127-3.2015 (see Chapters 4 and 5) has been replaced with the normatively referenced GB/T 9364.3-2018 to accommodate...
Improve my country's technological capabilities and increase operability;
---IEC 60127-4.2005 (see Chapters 3, 4 and 5) has been replaced by the normatively referenced GB/T 9364.4-2016.
(Chapter), to adapt to my country's technological conditions and increase operability;
---IEC 60127-7.2015 (see Chapters 3, 4 and 5) has been replaced by the normatively referenced GB/T 9364.7-2016.
(Chapter), to adapt to my country's technological conditions and increase operability;
---The requirements for non-destructive testing have been revised. Depending on the shape of the product, Table 1 now includes "(Applicable)" after "Collimation".
(Time)”, to adapt to my country’s technical conditions and increase operability (see Table 1);
---The simplified type test requirements of GB/T 9364.2 or GB/T 9364.3 have been revised, adding "terminals (where applicable)" for...
The phrase “(when applicable)” is added after “collimation” (see Table 5) to adapt to my country’s technical conditions and increase operability.
The following editorial changes have been made to this document.
---Notes on the increased inspection levels (see Table 1);
---Added notes for other sampling levels (see 4.3.1.1);
---Added notes on the test current for samples with a rated current greater than 10A in the simplified type test (see Tables 5, 6, and 7);
---Added Appendix A (Informative) "Review Testing and Supervision---Application of IEC EE03 (CB-FCS) Rules for Small Fuse Elements"
"Use guidelines".
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 China Electrical Equipment Industry Association.
This document is under the jurisdiction of the National Technical Committee on Standardization of Fuses (SAC/TC340).
This document was drafted by. China Electric Power Research Institute Co., Ltd., Shanghai Songshan Electronics Co., Ltd., and Jiangsu Tongling Technology Co., Ltd.
Company, Holiland (Xiamen) Circuit Protection Technology Co., Ltd., Weikai Testing Technology Co., Ltd., Nanjing Sate Technology Development Co., Ltd., Huizhou
Shenzhen Liang Sheng Electronics Co., Ltd., Baowei Asia Pacific Electronics (Shenzhen) Co., Ltd., Suzhou Huade Electronics Co., Ltd., Shenzhen Weikete Electronic Technology Co., Ltd.
Limited Liability Company, Honghu Languang Electronics Co., Ltd., Xiamen Cert Electronics Co., Ltd., Jiangsu Changsheng Electric Co., Ltd.
Jiangsu Liansheng New Technology Co., Ltd., AEM Technology (Suzhou) Co., Ltd., Ningbo Xinyuan Electronics Co., Ltd., Jiangyin Zhixiang Electronics
Technology Co., Ltd., Dongguan Better Electronics Technology Co., Ltd., Dongguan Lingte Electronics Co., Ltd., Zhejiang Zhongbei Energy Technology Co., Ltd.
The company, Yangzhong Radio Factory No. 3, and Dongguan Jingwo Electronic Technology Co., Ltd.
The main drafters of this document are. Sun Ting, Qin Haojun, Chen Heng, Lin Wenyuan, Cai Jun, Nan Shirong, Zhang Yi, Zhao Guohua, Zhang Zhiyi, Lin Yongming, and Hao Ming.
Yang Hongying, Lin Lübo, Cheng Mingsheng, Shu Humeng, Zhu Weifeng, Jiang Chuanlong, Xu Yan, Dai Baiqing, Ma Zhijun, Yan Wenhua, Pang Tan, Zhang Junyan, Liu Ye
Sun Hong, Chen Jinbiao, Rao Hong.
The release history of this document and the document it replaces is as follows.
---First published in.2011 as GB/T 9364.5-2011;
---This is the first revision.
Introduction
GB/T 9364 "Miniature Fuses" aims to standardize the technical requirements and test methods for miniature fuses, ensuring the electrical safety of the entire product.
The complete set is proposed to consist of the following parts.
---Part 1.Definition of Miniature Fuses and General Requirements for Miniature Fuse Elements. The purpose is to specify the definition of miniature fuses and the general requirements for miniature fuse elements.
Technical requirements for broken parts, including general requirements, standard ratings, markings, dimensions, structure, and electrical requirements.
---Part 2.Tubular Fuses. The purpose is to specify the general requirements, standard ratings, markings, dimensions, and structure of tubular fuses.
Electrical requirements and standard specifications, and other technical requirements.
---Part 3.Miniature Fuses. The purpose is to specify the general requirements and standard ratings for miniature fuses.
Technical requirements such as values, markings, dimensions, structure, electrical requirements, and standard specifications.
---Part 4.Universal Modular Fuse (UMF) Through-hole and Surface Mount Types. The purpose is to specify through-hole...
General requirements, standard ratings, markings, dimensions, electrical requirements and standards for modular and surface-mount universal fuse elements.
Technical requirements such as grid order.
---Part 5.Guidelines for Quality Assessment of Small Fuse Elements. The purpose is to specify the batch-by-batch inspection and reliability requirements for the quality assessment of small fuse elements.
Requirements such as durability testing and periodic inspections.
---Part 6.Fuse Supports for Miniature Fuses. The purpose is to specify the protection against electric shock for fuse supports for miniature fuses.
Technical requirements include protection, electrical clearances and creepage distances, electrical requirements, mechanical requirements, heat resistance requirements, and durability.
---Part 7.Miniature Fuses for Special Applications. The purpose is to specify the general requirements and standard ratings for miniature fuses for special applications.
Technical requirements such as values, markings, dimensions, structure, electrical requirements, and standard specifications.
---Part 8.Fusible Resistors with Special Overcurrent Protection. The purpose is to specify fusible resistors with special overcurrent protection.
Technical requirements for resistors, including general requirements, standard ratings, markings, dimensions and structure, electrical requirements, and standard specifications.
---Part 9.Small fuses with partial breaking capacity for special applications. The purpose is to specify fuses with partial breaking capacity...
Technical requirements for miniature fuses for special applications, including general requirements, standard ratings, markings, dimensions, electrical requirements, and standard specifications.
Require.
---Part 10.User Guide. This section aims to specify the characteristics of miniature fuses, different types of fuse elements, applications, and time-current characteristics.
Features include protection and pulse state operation, DC applications, fuse holders, performance at specific voltages, and the influence of ambient humidity.
Technical requirements.
---Part 11.Fuses for LED Lighting. The purpose is to specify the general requirements, standard ratings, and specifications for fuses used in LED lighting.
Technical requirements such as design, dimensions, structure, and electrical performance.
This document provides guidance for the quality assessment of small fuses, improving the product quality of small fuses produced in batches.
Miniature fuses, Part 5.
Guidelines for Quality Assessment of Small Fuse
1 Scope
This document specifies the requirements for batch inspection, reliability and durability testing, and periodic inspection for the quality assessment of small fuses.
This document provides guidelines for non-type testing of small fuse elements to facilitate communication between users and manufacturers regarding certain test procedures.
Use when a complete consensus cannot be reached in practice.
The purpose of this document is to provide generally acceptable guidance for quality control purposes to users and manufacturers with high demand for small fuses.
This document is applicable to batches of 10,000 or more. It may also be applicable to smaller batches if necessary.
For miniature fuses that have passed all type tests specified in the relevant parts of GB/T 9364, in order to ensure their technical performance level
To maintain this, a periodic inspection of simplified type testing (Chapter 5) is required.
This document does not specify the frequency of periodic inspections for batch-by-batch inspections.
For the application guidelines of the IEC EE03 (CB-FCS) rule for small fuses, see Appendix A.
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.
GB/T 9364.1-2015 Miniature Fuses - Part 1.Definition of Miniature Fuses and General Requirements for Miniature Fuse Elements (IEC)
60127-1.2006, MOD)
GB/T 9364.2-2018 Miniature fuses - Part 2.Tubular fuse elements (IEC 60127-2.2014, MOD)
GB/T 9364.3-2018 Miniature fuses - Part 3.Miniature fuses (IEC 60127-3.2015, MOD)
GB/T 9364.4-2016 Miniature fuses - Part 4.General modular fuse elements (IEC 60127-4.2012, MOD)
GB/T 9364.7-2016 Miniature fuses - Part 7.Miniature fuses for special applications (IEC 60127.2013, MOD)
3 Terms and Definitions
The terms and definitions defined in GB/T 9364.1-2015, GB/T 9364.4-2016 and GB/T 9364.7-2016 apply to this standard.
document.
4.Batch-by-batch inspection
4.1 Test Conditions
The appropriate Acceptable Quality Limit (AQL) and inspection level for the specimens should conform to the requirements of IEC 604101.
1) There is no corresponding national standard in my country. Relevant content can be found in GB/T 2828.1-2012 "Inspection Procedures for Attribute Sampling – Part 1.Acceptance Sampling Procedures".
Lot-by-lot inspection sampling plan retrieved based on acceptable quality limits (AQL).
...
