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GB/T 5169.33-2023Fire hazard testing for electric and electronic products - Part 33: Guidance for assessing the fire hazard - Ignitability - General guidance (English PDF)

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

September 7, 2023

Implementation date

April 1, 2024

Scope

GB/T 5169.33-2023 (Fire hazard testing for electric and electronic products - Part 33: Guidance for assessing the fire hazard - Ignitability - General guidance) is available as an English-translated PDF.

GB/T 5169.33-2023 is the Chinese standard "Fire hazard testing for electric and electronic products - Part 33: Guidance for assessing the fire hazard - Ignitability - General guidance".

Its scope clause reads: This document provides guidelines for assessing the ignitability of electrical and electronic products and their materials. Includes the following aspects. a) Principle of ignitability; b) Selection of appropriate test methods; c) Use and explanation of test results.

This document is applicable to the assessment of the ignitability of electrical and electronic products and the materials used in them and their correlation with fire hazards.

This document is intended to be used by technical committees when preparing standards based on the principles set out in IEC Guide104 and ISO /IEC Guide51 use.

One of the tasks of the technical committee is to use this series of standards wherever applicable when writing standards in this field. unless relevant Standards are specifically mentioned or listed, otherwise the requirements, test methods or test conditions of this document will not apply. Its clauses include normative reference documents; terms and definitions.

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Document preview — GB/T 5169.33-2023

National Standard of the People's Republic of China

ICS: 13.220.40; 29.020
Classification: K 04
Replacing: GB/Z 5169.33-2014

Issued by: State Administration for Market Regulation, China National Standardization Administration

Preface
Introduction
1 Scope
2 Normative reference documents
3 Terms and Definitions
4 Principle of ignition property
5 Considerations in selecting test methods
5.1 General
5.2 Fire
5.3 Ignition source
5.4 Types of specimens
5.5 Test procedures and equipment
6 Use and explanation of test results
Appendix A (informative) Cases of fires caused by arcs in underground hydropower stations and urban substations
Appendix NA (Informative) Published Part 13 of "Fire Hazard Test of Electrical and Electronic Products"

1 Scope

This document provides guidelines for assessing the ignitability of electrical and electronic products and their materials. Includes the following aspects.

a) Principle of ignitability;

b) Selection of appropriate test methods;

c) Use and explanation of test results.

This document is applicable to the assessment of the ignitability of electrical and electronic products and the materials used in them and their correlation with fire hazards.

This document is intended to be used by technical committees when preparing standards based on the principles set out in IEC Guide104 and ISO /IEC Guide51 use.

One of the tasks of the technical committee is to use this series of standards wherever applicable when writing standards in this field. unless relevant

Standards are specifically mentioned or listed, otherwise the requirements, test methods or test conditions of this document will not apply.

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations

For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document.

GB/T 5169.1-2015 Fire hazard test for electrical and electronic products Part 1.Fire test terminology (IEC 60695-4.2012,

IDT)

ISO 13943.2017 Firesafety-Vocabulary

3 Terms and definitions

The following terms and definitions as defined in ISO 13943.2017 and GB/T 5169.1-2015 apply to this document.

3.1 Auto-ignition

spontaneous combustion spontaneousignition self-ignitionCA,US spontaneous combustionunpilotedignitionCA,US Ignition (3.20) due to increase in temperature in the absence of a separate source of ignition (3.22).

Note 1.Ignition may be caused by self-heating or by an external heat source.

Note 2.In North America, "spontaneousignition" is the preferred term for ignition caused by self-heating.

[Source. ISO 13943.2017,3.24]

GB/T 5169.19 | GB/T 5169.16 | GB/T 5169.21 | GB/T 5169.36 | GB/T 5169.35 | GB/T 5169.34 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 37 pages — is available in the English PDF.

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