GB/T 5169.16-2017Fire hazard testing for electric and electronic products -- Part 16: Test flames--50 W horizontal and vertical flame test methods (English PDF)

Foreword

GB/T 5169 "Fire hazard testing for electric and electronic products" consists of

the following parts.

- Part 1.Terminology concerning fire tests;

- Part 2.Guidance for assessing the fire hazard - General guidelines;

- Part 5.Test flames - Needle test method - Apparatus, confirmatory

arrangement and guidance;

- Part 9.Guidance for assessing the fire hazard - Preselection testing

procedures - General guidelines;

- Part 10.Glowing/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 (GWEPT);

- Part 12.Glowing/hot-wire based test methods - Glow-wire flammability

index (GWFI) test method for materials;

- Part 13.Glowing/hot-wire based test methods - Glow-wire ignition

temperature (GWIT) test method for materials;

- Part 14.Test flames - 1 kW nominal pre-mixed flame - Apparatus,

confirmatory test arrangement and guidance;

- Part 15.Test flames - 500 W flames - Apparatus and confirmational test

methods;

- Part 16.Test flames - 50 W horizontal and vertical flame test methods;

- Part 17.Test flames - 500 W 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 method;

- Part 22.Test flames - 50 W flame - Apparatus and confirmational test

method;

- Part 23.Test flames - 500 W 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 liquids;

- 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 16 of GB/T 5169.

This Part was drafted in accordance with the rules given in GB/T 1.1-2009.

This Part replaces GB/T 5169.16-2008 "Fire hazard testing for electric and

electronic products - Part 16.Test flames - 50 W horizontal and vertical flame

test methods". Compared with GB/T 5169.16-2008, the main technical changes

are as follows.

- MODIFY the clause of normative references (see Clause 2 of this Part,

Clause 2 of 2008 edition);

- MODIFY part contents of terms and definitions (see Clause 3 of this Part,

Clause 3 of 2008 edition);

- MODIFY the arrangement of "Test specimens" "Test method A" and "Test

method B" clauses to make the structure clearer (see Clause 7, Clause 8

and Clause 9 of this Part, Clause 7, Clause 8 and Clause 9 of 2008 edition);

- ADD the criteria for "burned to the holding clamp" (see 9.2.4);

- DELETE the figure of "Burner/operator/test specimen orientation" (Figure 6

of 2008 edition);

- ADD 7 figures, i.e. "Clearance gauge", "Flame application", "Flame

application when there are molten drops", "HB specimen gauge (example)",

"V specimen gauge (example)", "Flame front position not classified as

'burned to the holding clamp'", "Flame front position classified as 'burned

to the holding clamp'" (Figures 6, 7, 8, 9, 9, 10, 11 and 12).

This Part uses the translation method to identical to IEC 60695-11-10.2013

"Fire hazard testing - Part 11-10.Test flames - 50 W horizontal and vertical

flame test methods".

The Chinese documents that are consistent with the normatively referenced

international documents in this Part are as follows.

- GB/T 5169.1-2015 Fire hazard testing for electric and electronic products -

Part 1.Terminology concerning fire tests (IEC 60695-4.2012, IDT)

- GB/T 5169.22-2015 Fire hazard testing for electric and electronic products

-Part 22.Test flames - 50 W flame - Apparatus and confirmational test

method (IEC 60695-11-4.2011, IDT)

- GB/T 5471-2008 Plastics - Compression moulding of test specimens of

thermosetting materials (ISO 295.2004, IDT)

- GB/T 9352-2008 Plastic - Compression moulding of test specimens of

thermoplastic materials (ISO 293.2004, IDT)

- GB/T 12006.1-2009 Plastics - Polyamides - Part 1.Determination of

viscosity number (ISO 307.2007, IDT)

- 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 has made the following editorial modifications.

- To be consistent with the existing standard series, the name of the standard

is modified to "Fire hazard testing for electric and electronic products - Part

16 Test flames - 50 W horizontal and vertical flame test methods".

This Part was proposed by China Electrical Equipment Industry Association.

This Part is under the jurisdiction of National Technical Committee on Fire

Hazard Testing of Electrical and Electronic Products of Standardization

Administration of China (SAC/TC 300).

Responsible drafting organization of this Part. China National Electric

Apparatus Research Institute Co., Ltd.

Participating drafting organizations of this Part. Guangdong Aldex New Material

Co., Ltd., Integrated Inspection and Quarantine Technology Center of

Dongguan Entry-Exit Inspection and Quarantine Bureau, Beijing TIRT

Technology Service Co., Ltd., Inspection and Quarantine Technology Center of

Guangdong Entry-Exit Inspection and Quarantine Bureau, Wenzhou Yaohua

Telecomminication Co., Ltd., Vkan Certification & Testing Co., Ltd., CHEARI

(Beijing) Certification & Testing Co., Ltd., China Electronics Standardization

Institute, Shenzhen Academy of Metrology & Quality Inspection, Wuxi Sunan

Experimental Equipment Co., Ltd., and Zhuhai Gree Electric Appliances Co.,

Ltd. Co., Ltd., 5th Electronics Research Institute of Ministry of Industry and

Information Technology of the People's Republic of China, Shandong Institute

of Product Quality Inspection.

Main drafters of this Part. Wu Qian, Chen Xin, Zheng Shaofeng, Gao Lingsong,

Wu Zheng, Huang Kaiyun, Wang Sheng, Liu Yan, Wan Cheng, Li Yuzhen,

Wang Tong, Ni Yunnan, Chen Xiaoli, Zhang Yuanqin, Liu Ya.

The previous released versions replaced by this Part are as follows.

- GB/T 5169.16-002, GB/T 5169.16-2008.

1 Scope

This Part of GB/T 5169 specifies small-scale laboratory test procedures

intended to compare the burning behaviour of different materials used in

electrotechnical products when vertically or horizontally oriented test bar

specimens are exposed to a small flame ignition source with a nominal thermal

power of 50 W.

2 Normative references

The following referenced documents are indispensable for the application of

this document. For dated references, only the edition cited applies.

3 Terms and definitions

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

4 Principle

A rectangular bar-shaped test specimen is supported horizontally or vertically

by one end and the free end is exposed to a specified test flame. The burning

behaviour of the horizontally supported bar under specific test conditions is

assessed by measuring the linear burning rate.

5 Significance of the fire tests

Results obtained in accordance with this Part shall not be used solely to

describe or appraise the fire hazard presented by a particular material under

actual fire conditions.

6 Apparatus

The laboratory burner shall conform to IEC 60695-11-4.

The measuring scale shall be graduated in millimetres (mm).

The pads shall be made of absorbent cotton designated "100 % cotton" or "pure

cotton".

7 Test specimens

Bar test specimens shall measure 125 mm +/- 5 mm long by 13.0 mm +/- 0.5 mm

wide, and shall be provided in at least the minimum and maximum thickness

for which the flame classification is under consideration (see Figure 4).

8 Test method A - Horizontal burning test

Three test specimens shall be tested. Each test specimen shall be marked with

two lines perpendicular to the longitudinal axis of the bar, 25 mm +/- 1 mm and

100 mm +/- 1 mm from the end that is to be exposed to the test flame.

9 Test method B - Vertical burning test

All test specimens shall be tested in a laboratory atmosphere of 15 °C to 35 °C

and 40 % to 75 % relative humidity.

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