Low-voltage switchgear and controlgear. Fire risk analysis and risk reduction measures

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

04-09-2017

Publisher

British Standards Institution

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Ignition modes for electrical fires
5 Conclusion
Bibliography

Pertains to the fire risk analysis of low-voltage switchgear and controlgear (hereinafter referred to as 'equipment') referring to the IEC 60947 relevant publications, where the following applies: - only the case where a fire originates (typically under fault or misuse conditions) within the equipment; - only equipment installed in normal environments. Hazardous environments, for example in presence of combustible materials, is not to be considered; - only the case of products selected, installed and used according to the manufacturer instructions and installation rules.

This document applies to the fire risk analysis of low-voltage switchgear and controlgear (hereinafter referred to as \'equipment\') referring to the IEC 60947 relevant publications, where the following applies:

only the case where a fire originates (typically under fault or misuse conditions) within the equipment;
only equipment installed in normal environments. Hazardous environments, for example in presence of combustible materials, is not to be considered;
only the case of products selected, installed and used according to the manufacturer instructions and installation rules.

In addition, the following cases are not considered:

faults addressed by IEC TR 61641;
risks due to smoke emissions;
double faults, i.e. multiple phenomenon, potentially combined.

Committee	PEL/121/1
DocumentType	Standard
Pages	24
PublisherName	British Standards Institution
Status	Current

Standards	Relationship
IEC TR 63054:2017	Identical

IEC 60950-1:2005+AMD1:2009+AMD2:2013 CSV	Information technology equipment - Safety - Part 1: General requirements
IEC 60947-7-2:2009	Low-voltage switchgear and controlgear - Part 7-2: Ancillary equipment - Protective conductor terminal blocks for copper conductors
NFPA 921 : 2017	GUIDE FOR FIRE AND EXPLOSION INVESTIGATIONS
IEC 60947-4-1:2009+AMD1:2012 CSV	Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters
IEC 60695-2-3:1984	Fire hazard testing. Part 2: Test methods. Bad-connection test with heaters
IEC 60999-2:2003	Connecting devices - Electrical copper conductors - Safety requirements for screw-type and screwless-type clamping units - Part 2: Particular requirements for clamping units for conductors above 35 mm2 up to 300 mm2 (included)
IEC 60050-212:2010	International Electrotechnical Vocabulary (IEV) - Part 212: Electrical insulating solids, liquids and gases
IEC 60947-5-1 : 4.0	LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 5-1: CONTROL CIRCUIT DEVICES AND SWITCHING ELEMENTS - ELECTROMECHANICAL CONTROL CIRCUIT DEVICES
IEC 60695-2-11:2014	Fire hazard testing - Part 2-11: Glowing/hot-wire based test methods - Glow-wire flammability test method for end-products (GWEPT)
IEC 60947-7-1:2009	Low-voltage switchgear and controlgear - Part 7-1: Ancillary equipment - Terminal blocks for copper conductors
IEC 60999-1:1999	Connecting devices - Electrical copper conductors - Safety requirements for screw-type and screwless-type clamping units - Part 1: General requirements and particular requirements for clamping units for conductors from 0,2 mm2 up to 35 mm2 (included)
ISO/IEC Guide 51:2014	Safety aspects Guidelines for their inclusion in standards
IEC 60695-2-12:2010+AMD1:2014 CSV	Fire hazard testing - Part 2-12: Glowing/hot-wire based test methods- Glow-wire flammability index (GWFI) test method for materials
IEC TR 61641:2014	Enclosed low-voltage switchgear and controlgear assemblies - Guide for testing under conditions of arcing due to internal fault
IEC 60947-1:2007+AMD1:2010+AMD2:2014 CSV	Low-voltage switchgear and controlgear - Part 1: General rules
IEC 60695-11-10:2013	Fire hazard testing - Part 11-10: Test flames - 50 W horizontal and vertical flame test methods
IEC 60695-1-21:2016	Fire hazard testing - Part 1-21: Guidance for assessing the fire hazard of electrotechnical products - Ignitability - Summary and relevance of test methods
IEC 60050-121:1998	International Electrotechnical Vocabulary (IEV) - Part 121: Electromagnetism
IEC 60947-3:2008+AMD1:2012+AMD2:2015 CSV	Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
IEC 62477-1:2012+AMD1:2016 CSV	Safety requirements for power electronic converter systems and equipment - Part 1: General
IEC 60947-2:2016	Low-voltage switchgear and controlgear - Part 2: Circuit-breakers
IEC 60695-11-5 : 2.0	FIRE HAZARD TESTING - PART 11-5: TEST FLAMES - NEEDLE-FLAME TEST METHOD - APPARATUS, CONFIRMATORY TEST ARRANGEMENT AND GUIDANCE
IEC 60695-11-5:2016	Fire hazard testing - Part 11-5: Test flames - Needle-flame test method - Apparatus, confirmatory test arrangement and guidance
IEC 60947-6-1:2005+AMD1:2013 CSV	Low-voltage switchgear and controlgear - Part 6-1: Multiple functionequipment - Transfer switching equipment
IEC 60695-1-10:2016	Fire hazard testing - Part 1-10: Guidance for assessing the fire hazard of electrotechnical products - General guidelines
IEC GUIDE 116:2010	Guidelines for safety related risk assessment and risk reduction for low voltage equipment

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PD IEC/TR 63054:2017

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Table of Contents

Abstract

Scope

General Product Information

International Equivalents

Standards Referencing This Book

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