GB/T 5169.10-2017Fire hazard testing for electric and electronic products -- Part 10: Glowing/hot-wire based test methods -- Glow-wire apparatus and common test procedure (English PDF)

Foreword

GB/T 5169 Fire Hazard Testing for Electric and Electronic Products has published or plans to

publish the following parts.

--- Part 1.Terminology Concerning Fire Tests;

--- Part 2.Guidance for Assessing the Fire Hazard - General Guidelines;

--- Part 5.Test Flame Needle Flame Test Method Apparatus - Confirmation Test Method

and Guidance;

--- Part 9.Guidance for Assessing the Fire Hazard - Pre-Selection Testing Procedures -

General Guidelines;

--- Part 10.Glow/Hot-Wire Based Test Methods - Glow-Wire Apparatus and Common Test

Procedure;

--- Part 11.Glowing/Hot-Wire Based Test Methods - Glow-Wire Flammability Test Method

for End-Products;

--- Part 12.Glowing/Hot-Wire Based Test Methods - Glow-Wire Flammability Index

(GWFI) Test Method for Materials;

--- Part 13.Basic Test Methods for Glowing Filament/Hot-Wire - Test Methods for Glow

Wire Ignition Temperature (GWIT);

--- Part 14.Test Flames - 1kW Nominal Pre-Mixed Flame - Apparatus, Confirmatory Test

Arrangement and Guidance;

--- Part 15.Test Flames - 500W Flames - Apparatus and Confirmation Test Methods;

--- Part 16.Test Flames - 50W Horizontal and Vertical Flame Test Methods;

--- Part 17.Test Flames - 500W Flame Test Method;

--- Part 18.Toxicity of Fire Effluent - General Guidance;

--- Part 19.Abnormal Heat - Mould Stress Relief Distortion Test;

--- Part 20.Surface Spread of Flame - Summary and Relevance of Test Methods;

--- Part 21.Abnormal Heat -Ball Pressure Test;

--- Part 22.Test Flames - 50W Flame - Apparatus and Confirmational Test Method;

--- Part 23.Test Flames - 500W Vertical Flame Test Method for Tubular Polymeric Materials;

--- Part 24.Guidance for Assessing the Fire Hazard - Insulating Liquids;

--- Part 25.Smoke Obscuration - General Guidance;

--- Part 26.Smoke Obscuration - Summary and Relevance of Test Methods;

--- Part 27.Smoke Obscuration - Small-Scale Static Test - Description of the Apparatus;

--- Part 28.Smoke Obscuration - Small-Scale Static Test - Materials;

--- Part 29.Heat Release - General Guidance;

--- Part 30.Heat Release - Summary and Relevance of Test Methods;

--- Part 31.Surface Spread of Flame - General Guidance;

--- Part 32.Heat Release - Heat Release of Insulating Liquid;

--- Part 33.Guidance for Assessing the Fire Hazard - Ignitability - General Guidance;

--- Part 34.Guidance for Assessing the Fire Hazard - Ignitability - Summary and Relevance

of Test Methods;

--- Part 35.Corrosion Damage Effects of Fire Effluent - General Guidance;

--- Part 36.Corrosion Damage Effects of Fire Effluent - Summary and Relevance of Test

Methods;

--- Part 38.Toxicity of Fire Effluent - Summary and Relevance of Test Methods;

--- Part 39.Toxicity of Fire Effluent - Use and Interpretation of Test Results;

--- Part 40.Toxicity of Fire Effluent - Estimation of Toxic Potency - Apparatus and Test

Method;

--- Part 41.Toxicity of Fire Effluent - Estimation of Toxic Potency - Calculation and

Interpretation of Test Results;

--- Part 42.Test Flames - Confirmatory Tests - Guidance;

--- Part 44.Guidance for Assessing the Fire Hazard - Fire Hazard Assessment.

This Part is Part 10 of GB/T 5169.

This Part was drafted as per the rules specified in GB/T 1.1-2009.

This Part replaced GB/T 5169.10-2006 Fire Hazard Testing for Electric and Electronic

Products - Part 10.Glow/Hot-Wire Based Test Methods - Glow-Wire Apparatus and Common

Test Procedure. Compared with GB/T 5169.10-2006, the major technical changes of this Part

are as follows.

--- Move the content of "Summary of Test Equipment and General Test Methods" to the

Scope (see Clause 1 of this Edition; Clause 4 of 2006 Edition);

--- Add some terms and definitions (see Clause 3 of this Edition);

--- Add provisions for new glow wire annealing treatment (see 4.1 of this Edition; 5.1 of

2006 Edition);

--- Revise the description of the provisions of the test chamber (see 4.5 of this Edition; 5.4

of 2006 Edition);

--- Increase requirements for timing devices (see 4.6 of this Edition);

--- Revise the standard for replacing the glow wire; CHANGE FROM when the Dimension-

A "reduces to 90% of the initial reading", it shall be replaced TO. when it "reduces to

97.5% of the reading before the initial test" (see 5.1 of this Edition; 6.1 of 2006 Edition);

--- Add Annex A "Equipment Manufacturers and Suppliers " (see Annex A of this Edition);

--- Add Annex B "Guidance on 'Ignition' and 'Flaming' Observations" (see Annex B of this

Edition);

--- Add Annex C "Guidance on the Verification Procedure of the Glow-Wire Temperature

Measuring System by the Heating Current" (see Annex C of this Edition).

This Part used translation method to equivalently adopt IEC 60695-2-10.2013 Fire Hazard

Testing - Part 2-10.Glowing/Hot-Wire Based Test Methods - Glow-Wire Apparatus and

Common Test Procedure.

The Chinese documents that have a consistent correspondence with the international documents

normatively cited in this part are as follows.

--- GB/T 5169.11-2017 Fire Hazard Testing for Electric and Electronic Products - Part 11.

Glowing/Hot-Wire Based Test Methods - Glow-Wire Flammability Test Method for End-

Products (GWEPT) (IEC 60695-2-11.2014, IDT);

--- GB/T 5169.12-2013 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 (IEC 60695-2-12.2010, IDT);

--- GB/T 5169.13-2013 Fire Hazard Testing for Electric and Electronic Products - Part 13.

Basic Test Methods for Glowing Filament/Hot Wire - Test Methods for Glow Wire Ignition

Temperature (GWIT) (IEC 60695-2-13.2010, IDT);

--- GB/T 16839.1-1997 Thermocouples - Part 1.Reference Tables (idt IEC 60584-1.1995);

--- GB/T 16839.2-1997 Thermocouples - Part 2.Tolerances (idt IEC 60584-2.1982);

--- GB/T 16499-2008 The Preparation of Safety Publication and the Use of Basic Safety

Publications and Group Safety Publications (neq IEC Guide 104.1997);

--- GB/T 20002.4-2015 Drafting for Special Aspects in Standards - Part 4.Safety Aspects

for Their Inclusion in Standards (ISO/IEC Guide 51.2014, MOD);

This Part made the following editorial modifications.

--- In order to keep consistent with the existing standards, the standard name is changed

into Fire Hazard testing for electric and electronic products - Part 10.Glowing/Hot-Wire

Based Test Methods - Glow-Wire Apparatus and Common Test Procedure.

This Part was proposed by China Electrical Equipment Industry Association.

This Part shall be under the jurisdiction of National Technical Committee for Standardization

of Fire Hazard Testing for Electric and Electronic Products (SAC/TC 300).

Drafting organization of this Part. China National Electric Apparatus Research Institute Co.,

Ltd.

Participating drafting organizations of this Part. CHEARI (Beijing) Certification & Testing Co.,

Ltd.; Gree Electric Appliances, INC. of Zhuhai; Inspection Quarantine Technology Centre,

Inspection Quarantine Bureau of Guangdong; Vkan Certification & Testing Co., Ltd.; Yuehua

Holding Group Co., Ltd.; Guangdong Yanron New Materials Co., Ltd.; Wuxi SuNan Test

Equipment Co., Ltd.; The Fifth Research institute of MIIT; Beijing TIRT Technology Service

Co., Ltd.; China Electronics Standardization Institute; Shenzhen Academy of Metrology &

Quality Inspection; and Dongguan Yuehua Electronic Technology Co., Ltd.

Chief drafting staffs of this Part. Huang Kaiyun, Wan Cheng, Zhang Long, Wu Zheng, Liu Yan,

Wu Qian, Wang Chaosheng, Chen Xin, Ni Yunnan, Zhang Yuanqin, Gao Lingsong, Li Yuzhen,

Wang Shuonan, and Li Guangbin.

The historical editions replaced by this Part are as follows.

--- GB/T 5169.10-1997, GB/T 5169.10-2006.

1 Scope

This Part of GB/T 5169 specifies the glow-wire apparatus and common test procedure to

simulate the effects of thermal stresses which may be produced by heat sources such as glowing

elements or overloaded resistors, for short periods, in order to assess the fire hazard by a

simulation technique.

2 Normative References

The following documents are essential to the application of this document. For the dated

documents, only the versions with the dates indicated are applicable to this document; for the

undated documents, only the latest version (including all the amendments) is applicable to this

document.

3 Terms and Definitions

For the purposes of this document, the terms and definitions given in ISO 13943.2008, some

of which are reproduced below for the user's convenience, as well as the following apply.

Test that measures behavior of a fire or exposes an item to the effects of a fire.

4 Description of the Test Apparatus

The temperature of the tip of the glow-wire shall be measured by a class 1 (see IEC 60584-2)

mineral-insulated metal-sheathed fine-wire thermocouple with an insulated junction.

The apparatus shall be operated in a draught-free environment having sufficient volume such

that.

5 Verification of the Apparatus

The temperature measuring system described in 4.3 shall be verified periodically using the

procedure described below.

6 Conditioning

Before testing, the wooden board and wrapping tissue shall be stored for a minimum of 24 h in

an atmosphere having a temperature between 15 °C and 35 °C and a relative humidity between

45 % and 75 %.

7 Common Test Procedure

The tip of the glow-wire is then brought smoothly into contact with the test specimen for a

duration of 30 s +/- 1 s. An approximate rate of approach and withdrawal of 10 mm/s to 25 mm/s

has been found to be satisfactory. However, the rate of approach shall be reduced to near zero

upon contact to avoid impact forces exceeding 1.05 N.

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