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GB/T 5169.12-2024: Fire hazard testing for electric and electronic products - Part 12: Glowing/hot-wire based test methods - Glow-wire flammability index (GWFI) test method for materials
Status: Valid GB/T 5169.12: Evolution and historical versions
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Fire hazard testing for electric and electronic products - Part 12: Glowing/hot-wire based test methods - Glow-wire flammability index (GWFI) test method for materials
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GB/T 5169.12-2024
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| GB/T 5169.12-2013 | English | 200 |
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Fire hazard testing for electric and electronic products -- Part 12: Glowing/hot-wire based test methods -- Glow-wire flammability index (GWFI) test method for materials
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GB/T 5169.12-2013
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| GB/T 5169.12-2006 | English | 319 |
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Electric and electronic products -- Fire hazard testing -- Part 12: Glowing / hot-wire based test methods material glow-wire flammability test method
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GB/T 5169.12-2006
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| GB/T 5169.12-1999 | English | 359 |
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Fire hazard testing for electric and electronic products Test methods Glow-wire flammability test on materials
| Obsolete |
GB/T 5169.12-1999
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Standard similar to GB/T 5169.12-2024 GB/T 5169.13 GB/T 5169.19 GB/T 5169.9 Basic data | Standard ID | GB/T 5169.12-2024 (GB/T5169.12-2024) | | Description (Translated English) | Fire hazard testing for electric and electronic products - Part 12: Glowing/hot-wire based test methods - Glow-wire flammability index (GWFI) test method for materials | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | k04 | | Word Count Estimation | 20,235 | | Date of Issue | 2024-08-23 | | Date of Implementation | 2024-08-23 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 5169.12-2024: Fire hazard testing for electric and electronic products - Part 12: Glowing/hot-wire based test methods - Glow-wire flammability index (GWFI) test method for materials
---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 13.220.40;29.020
CCSK04
National Standard of the People's Republic of China
Replaces GB/T 5169.12-2013
Fire hazard test for electrical and electronic products
Part 12.Basic test methods for glow-wire/hot-wire
Glow Wire Flammability Index (GWFI) Test Method for Materials
[IEC 60695-2-12.2021,Firehazardtesting-Part 2-12.Glowing/hot-wire
materials,IDT]
Published on August 23, 2024, implemented on March 1, 2025
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
Introduction V
1 Scope 1
2 Normative references 1
3 Terms and Definitions 2
4 Sample 3
5 Device 4
6 Calibration of temperature measurement system 4
7 State adjustment and test conditions 4
8 Test Procedure 4
9 Observation and Measurement 5
10 Evaluation of test results 6
11 Test Report 6
Appendix NA (Informative) The published part of "Fire hazard test for electric and electronic products" 7
References 9
Table 1 Test starting temperature 4
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 is Part 12 of "Fire Hazard Tests for Electrical and Electronic Products".
See Appendix NA for part.
This document replaces GB/T 5169.12-2013 "Fire hazard tests for electric and electronic products - Part 12.Glowing wire/hot wire basic test
Compared with GB/T 5169.12-2013, except for structural adjustment and editorial changes,
In addition to the above, the main technical changes are as follows.
a) Added a description of GWFI in the scope chapter (see Chapter 1);
b) Added the term "flame phenomenon" (see 3.3);
c) The relative humidity of the test conditions is changed from "45%~75%" to "less than or equal to 75%" (see 7.3, 7.3 of the.2013 edition);
d) Added records of ignition time tI and extinction time tE (see 9.2);
e) Added a method for recording a certain GWFI value corresponding to a certain thickness range (see 10.2).
This document is equivalent to IEC 60695-2-12.2021 "Fire hazard tests - Part 2-12.Basic test methods for glowing wire/hot wire"
Test method for the Gravity Flammability Index (GWFI) of materials.
The following minimal editorial changes were made to this document.
--- To be consistent with the existing series of standards, the name of this document is changed to "Fire hazard tests for electric and electronic products Part 12.Hot
Basic test methods for wire/hot wire - Glow Wire Flammability Index (GWFI) test method for materials";
--- Added Notes in 9.2 to supplement the definition guidance of ignition time tI, extinguishing time tE, and flame time after removal tR;
--- Add informative appendix NA to list the published parts of "Fire hazard test for electric and electronic products".
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 was proposed by the China Electrical Equipment Industry Association.
This document is under the jurisdiction of the National Technical Committee for Standardization of Fire Hazard Testing for Electrical and Electronic Products (SAC/TC300).
This document was drafted by. China Electric Power Research Institute Co., Ltd., Hisense Rongsheng (Guangdong) Refrigerator Co., Ltd., China Institute of Home Furnishing
(Beijing) Testing and Certification Co., Ltd., Guangdong Shengyi Technology Co., Ltd., Shenyang Avionics Testing Technology Co., Ltd., Ministry of Industry and Information Technology
The Fifth Institute of Electronics, Weikai Testing Technology Co., Ltd., Zhejiang Yuehua Telecommunications Co., Ltd., and China Southern Power Grid Co., Ltd.
Power Transmission Company Power Research Institute, Beijing Tairui Testing Technology Service Co., Ltd., China Household Electrical Appliances Research Institute, Honor Terminal Co., Ltd.
Shenzhen International Graduate School of Tsinghua University, Huitong New Materials Co., Ltd., Chongqing University, Kingfa Science & Technology Co., Ltd., China Southern
Dali Bureau of Ultra-high Voltage Transmission Company of Fang Power Grid Co., Ltd. and Tianjin Jinhang Computing Technology Research Institute.
The main drafters of this document are. Liu Xin, Zhang Shanfang, Wan Cheng, Guan Jian, Kong Xiangyu, Liu Xiuzhen, Zhang Yuanqin, Gui Yi, Wang Peiru, Deng Jun, Gao Lingsong,
Peng Qiang, Zou Weilong, Jia Zhidong, Chen Xin, Wang Youyuan, Xie Zhicheng, Wang Xilin, Zheng Wen, Ma Yigang, and Zhang Tuqiang.
The previous versions of this document and the documents it replaces are as follows.
---First published in 1985 as GB 5169.4-1985 "Glow-wire test method and guide wire test for fire hazard test of electrical and electronic products"
but";
--- In.1999, the first revision was divided into GB/T 5169.10-1997 "Test Methods for Fire Hazard Tests for Electrical and Electronic Products"
GB/T 5169.11-1997 "General Rules for Fire Hazard Test Methods for Electrical and Electronic Products"
GB/T 5169.12-1999 "Test Methods for Fire Hazard Test of Electrical and Electronic Products"
GB/T 5169.13-1999 "Fire hazard test for electrical and electronic products"
Methods - Glow-wire ignition test for materials - Part 4;
--- In.2006, the second revision was GB/T 5169.12-2006 "Fire hazard tests for electric and electronic products - Part 12.Hot
Wire/hot wire basic test method Glow-wire flammability test method for materials";
--- Revised for the third time in.2013 to GB/T 5169.12-2013;
---This is the fourth revision.
Introduction
The design of all electrical and electronic products needs to consider the risk of fire and potential fire hazards. The design of components, circuits and parts
The purpose of material selection is to reduce the potential fire risk to an acceptable level even if foreseeable misuse, malfunction or failure occurs.
The purpose of the Fire Hazard Test for Electrical and Electronic Products is to save lives by reducing the number of fires or the severity of fires.
life and property. It can be achieved through.
---Prevent ignition of live parts as much as possible. If ignition occurs, limit the scope of the fire to the casing of the electrical and electronic products;
--- Minimize the spread of flames to the product enclosure as much as possible, and reduce the risk of combustion including heat, smoke, toxic or corrosive gases.
The harmful effects of the product are minimized.
The Fire Hazard Test for Electrical and Electronic Products now consists of 40 parts, divided into three major areas.
--- Fire hazard test assessment guidelines and terminology standards, including 1 terminology and 8 assessment guidelines, the purpose is to provide a professional field
Provide guidance and reference procedures for fire hazard assessment;
---Fire test method standards, including 5 basic glow wire/hot wire test methods, 9 flame test methods, 2 abnormal heat resistance
Capability test method, 1 arc ignition test method, the purpose is to introduce suitable for electrical and electronic equipment manufacturers and testing institutions
Small-scale test methods using specific heat sources to simulate the heat sources that cause fires;
---Hazard assessment criteria for combustion flow, including 2 items of corrosiveness, 2 items of smoke blurring, 5 items of toxicity, 3 items of heat release, and 2 items of flame surface
The purpose is to provide measurement of combustion toxicity, corrosiveness, smoke haze and heat release of electrical and electronic products and their materials.
Guidelines and current technical status of test methods.
In electrical equipment, overheated metal parts may become a source of ignition. In the glow-wire test, a hot glow-wire is used to simulate this.
Let's start a fire together.
IEC 60695-2-10 describes the glow-wire test apparatus and general test methods, and IEC 60695-2-11[5] describes the glow-wire test of finished products.
For flammability test, IEC 60695-2-13 describes the glow-wire ignition temperature test method for materials.
This document describes the Glow-Wire Flammability Index Test for materials. It is used to measure, describe and classify the flammability of materials under controlled laboratory conditions.
This facilitates the evaluation of materials that are exposed to excessive thermal stresses (e.g., fault currents through conductors, overloading of components and/or
This document alone cannot be used to describe or evaluate the performance of materials, products or components under actual fire conditions.
However, the results of this test can be used as an element in the fire risk assessment taking into account all factors.
Risk assessment is concerned with evaluating the fire hazard for a specific end use.
This document may refer to hazardous materials, procedures, and equipment. It is not intended to address all safety concerns associated with them.
It is necessary for users of this document to establish appropriate safety and health practices and determine its applicability and limitations before use.
Fire hazard test for electrical and electronic products
Part 12.Basic test methods for glow-wire/hot-wire
Glow Wire Flammability Index (GWFI) Test Method for Materials
1 Scope
This document specifies the method for determining the glow-wire flammability index on solid electrical and electronic insulating materials or other solid material specimens.
(GWFI) glow wire test method.
GWFI is the highest temperature measured by this standardized procedure. At this temperature, the test material will not ignite, or if ignition occurs, it will not ignite within
The flame will go out within 30 seconds after the glow wire is removed and the test material will not be completely burned; if dripping occurs, it will not ignite the packaging tissue paper.
This test method is a material test performed on a series of standard specimens. The data obtained together with the data obtained from IEC 60695-2-13 material
The data obtained by the Glow Wire Ignition Temperature (GWIT) test method are used together with the IEC 60695-1-30 [4] pre-selection procedure to assess whether the material meets the requirements.
Meet the requirements of IEC 60695-2-11.
NOTE As a result of the fire hazard assessment, a series of appropriate flammability and ignition pre-selection tests can reduce the number of product tests.
This document is intended for use by product committees when writing standards in accordance with the principles set out in IEC Guide 104 and ISO /IEC Guide 51.
use.
One of the tasks of the product committee is to use this series of standards wherever applicable when writing standards in this field.
Unless otherwise specifically mentioned or listed in the standard, the requirements, test methods or test conditions of this document shall not apply.
2 Normative references
The contents of the following documents constitute essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 2918-2018 Standard environment for conditioning and testing of plastic specimens (ISO 291.2008, MOD)
Note. There is no technical difference between the referenced content of GB/T 2918-2018 and the referenced content of ISO 291.2008.
ISO 13943.2023 Fire safety vocabulary
NOTE. There are no technical differences between the referenced content of ISO 13943.2023 and the referenced content of ISO 13943.2017.
IEC 60695-2-10 Fire hazard tests Part 2-10.Glow-wire/hot-wire basic test methods Glow-wire apparatus and general test
Note. GB/T 5169.10-2017 Fire hazard tests for electric and electronic products Part 10.Basic test methods for glow wire/hot wire Glow wire device and
General test method (IEC 60695-2-10.2013, IDT)
IEC 60695-2-13 Fire hazard tests - Part 2-13.Glow-wire/hot-wire basic test methods Glow-wire ignition temperature of materials
Note. GB/T 5169.13-2024 Fire hazard tests for electric and electronic products Part 13.Glow wire/hot wire basic test methods Glow wire of materials
Ignition temperature (GWIT) test method (IEC 60695-2-13.2021, IDT);
IEC 60695-4.2021 Fire hazard testing - Part 4.Terminology for fire hazard of electrical products
Note. GB/T 5169.1-2015 Fire hazard testing for electric and electronic products Part 1.Fire test terminology (IEC 60695-4.2012, IDT)
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