IEC TS 60695-1-20:2008

Fire hazard testing - Part 1-20: Guidance for assessing the fire hazard of electrotechnical products - Ignitability - General guidance

Provides guidance on the ignitability of electrotechnical products and the materials from which they are formed. It gives guidance on the principles of ignitability, the selection of appropriate test methods, and the use and interpretation of results. Has the status of a basic safety publication in accordance with IEC Guide 104.

Essais relatifs aux risques du feu - Partie 1-20: Lignes directrices pour l'évaluation des risques du feu des produits électrotechniques - Allumabilité - Lignes directrices générales

Donne des lignes directrices sur l'allumabilité des produits électrotechniques et des matériaux dont ils sont constitués. Elle fournit des lignes directrices sur les principes de l'allumabilité, le choix des méthodes d'essai appropriées, et l'utilisation et l'interprétation des résultats. A le statut d'une publication fondamentale de sécurité conformément au Guide 104 de la CEI.

General Information

• Status: Replaced
• Publication Date: 12-Feb-2008
• ICS: 13.220.40 - Ignitability and burning behaviour of materials and products
• ICS: 29.020 - Electrical engineering in general
• Technical Committee: TC 89 - Fire hazard testing
• Drafting Committee: WG 12 - TC 89/WG 12
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 28-Jan-2016

Relations

• Replaced By: IEC 60695-1-20:2016 - Fire hazard testing - Part 1-20: Guidance for assessing the fire hazard of electrotechnical products - Ignitability - General guidance
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC/TS 60695-1-20
Edition 1.0 2008-02
TECHNICAL
SPECIFICATION
SPÉCIFICATION
TECHNIQUE
BASIC SAFETY PUBLICATION
PUBLICATION FONDAMENTALE DE SÉCURITÉ
Fire hazard testing –
Part 1-20: Guidance for assessing the fire hazard of electrotechnical products –
Ignitability – General guidance

Essais relatifs aux risques du feu –
Partie 1-20: Lignes directrices pour l'évaluation des risques du feu des produits
électrotechniques – Allumabilité – Lignes directrices générales

IEC/TS 60695-1-20:2008
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IEC/TS 60695-1-20
Edition 1.0 2008-02
TECHNICAL
SPECIFICATION
SPÉCIFICATION
TECHNIQUE
BASIC SAFETY PUBLICATION
PUBLICATION FONDAMENTALE DE SÉCURITÉ
Fire hazard testing –
Part 1-20: Guidance for assessing the fire hazard of electrotechnical products –
Ignitability – General guidance

Essais relatifs aux risques du feu –
Partie 1-20: Lignes directrices pour l'évaluation des risques du feu des produits
électrotechniques – Allumabilité – Lignes directrices générales

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
R
CODE PRIX
ICS 13.220.40; 29.020 ISBN 2-8318-9602-9

– 2 – TS 60695-1-20 © IEC:2008
CONTENTS
FOREWORD.3
INTRODUCTION.5

1 Scope.6
2 Normative references .6
3 Terms and definitions .7
4 Principles of ignitability.10
4.1 Gases .10
4.1.1 Flammability limits .10
4.1.2 Arc fires.10
4.2 Liquids .10
4.2.1 Introduction .10
4.2.2 Ignition parameters.10
4.2.3 Insulating liquids.11
4.3 Solids.11
4.3.1 Introduction .11
4.3.2 Parameters affecting ignition .11
4.3.3 Metals .12
4.3.4 Carbon (graphite) and carbonaceous char .12
4.3.5 Reactive substances.13
4.3.6 Dust clouds .13
5 Consideration for the selection of test methods .13
5.1 Introduction .13
5.2 Fire scenario .13
5.3 Ignition sources.13
5.3.1 Internal sources.14
5.3.2 External sources.14
5.3.3 Arc ignition of materials .15
5.4 Types of test specimen.16
5.5 Test procedure and apparatus.16
6 Use and interpretation of results.17

Annex A (informative) Examples of accidents due to arc fires in underground
hydroelectric power plants or urban substations.18

Bibliography.19

TS 60695-1-20 © IEC:2008 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIRE HAZARD TESTING –
Part 1-20: Guidance for assessing the fire
hazard of electrotechnical products –
Ignitability – General guidance

FOREWORD
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Technical specifications are subject to review within three years of publication to decide
whether they can be transformed into International Standards.
IEC 60695-1-20, which is a technical specification, has been prepared by IEC technical
committee 89: Fire hazard testing.
It has the status of a basic safety publication in accordance with IEC Guide 104 and ISO/IEC
Guide 51.
– 4 – TS 60695-1-20 © IEC:2008
The text of this technical specification is based on the following documents:
Enquiry draft Report on voting
89/807/DTS 89/827/RVC
Full information on the voting for the approval of this technical specification can be found in
the report on voting indicated in the above table.
This technical specification is to be used in conjunction with IEC 60695-1-21 .
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all the parts in the IEC 60695 series, under the general title Fire hazard testing, can
be found on the IEC website.
Part 1 consists of the following parts:
Part 1-10 : Guidance for assessing the fire hazard of electrotechnical products –
General guidelines
Part 1-11 : Guidance for assessing the fire hazard of electrotechnical products –
Fire hazard assessment
Part
...