EN 60695-1-1:2000
(Main)Fire hazard testing - Part 1-1: Guidance for assessing the fire hazard of electrotechnical products - General guidelines
Fire hazard testing - Part 1-1: Guidance for assessing the fire hazard of electrotechnical products - General guidelines
Provides guidance for assessing the fire hazard of electrotechnical products and for the resulting development of fire hazard testing as related directly to harm to people, animals or property. Products, as defined in this standard, relate to materials, components or complete end-use products. Contains a new informative Annex with an example of the fire hazard assessment technique. The example is based on a hypothetical installation of rigid plastic conduit and quantifies the contribution of it to the total fire hazard in an actual fire scenario. Has the status of a basic safety publication in accordance with IEC Guide 104.
Prüfungen zur Beurteilung der Brandgefahr - Teil 1-1: Anleitung zur Beurteilung der Brandgefahr von elektrotechnischen Erzeugnissen - Allgemeiner Leitfaden
Essais relatifs aux risques du feu - Partie 1-1: Guide pour l'évaluation des risques du feu des produits électrotechniques - Directives générales
Fournit des directives pour évaluer les risques du feu des produits électrotechniques et pour développer en conséquence les essais relatifs aux risques de feu liés directement aux dommages aux personnes aux animaux ou aux biens. Les produits définis dans cette norme désignent les matériaux les composants ou les produits finis complets. Contient une nouvelle Annexe informative avec un exemple de technique d'estimation des risques du feu. L'exemple est basé sur une installation hypothétique d'un conduit rigide en matière plastique et il quantifie la contribution de ce produit par rapport aux risques totaux de feu dans un scénario feu réel. A le statut, d'une publication fondamentale de sécurité conformément au Guide 104.
Preskušanje požarne ogroženosti - 1-1. del: Navodila za ocenjevanje požarne ogroženosti pri elektrotehničnih proizvodih - Splošna navodila (IEC 60695-1-1:1999+corrigendum 2000)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2000
1DGRPHãþD
SIST EN 60695-1-1:1999
3UHVNXãDQMHSRåDUQHRJURåHQRVWLGHO 1DYRGLOD]DRFHQMHYDQMHSRåDUQH
RJURåHQRVWLSULHOHNWURWHKQLþQLKSURL]YRGLK6SORãQDQDYRGLOD ,(&
FRUULJHQGXP
Fire hazard testing -- Part 1-1: Guidance for assessing the fire hazard of electrotechnical
products - General guidelines
Prüfungen zur Beurteilung der Brandgefahr -- Teil 1-1: Anleitung zur Beurteilung der
Brandgefahr von elektrotechnischen Erzeugnissen - Allgemeiner Leitfaden
Essais relatifs aux risques du feu -- Partie 1-1: Guide pour l'évaluation des risques du feu
des produits électrotechniques - Directives générales
Ta slovenski standard je istoveten z: EN 60695-1-1:2000
ICS:
13.220.40 Sposobnost vžiga in Ignitability and burning
obnašanje materialov in behaviour of materials and
proizvodov pri gorenju products
29.020 Elektrotehnika na splošno Electrical engineering in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
NORME CEI
INTERNATIONALE IEC
60695-1-1
INTERNATIONAL
Troisième édition
STANDARD
Third edition
1999-11
PUBLICATION FONDAMENTALE DE SÉCURITÉ
BASIC SAFETY PUBLICATION
Essais relatifs aux risques du feu –
Partie 1-1:
Guide pour l'évaluation des risques du feu
des produits électrotechniques –
Directives générales
Fire hazard testing –
Part 1-1:
Guidance for assessing the fire hazard of
electrotechnical products –
General guidelines
IEC 1999 Droits de reproduction réservés Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in
utilisée sous quelque forme que ce soit et par aucun procédé, any form or by any means, electronic or mechanical,
électronique ou mécanique, y compris la photo-copie et les including photocopying and microfilm, without permission in
microfilms, sans l'accord écrit de l'éditeur. writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http://www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
W
PRICE CODE
International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
For price, see current catalogue
60695-1-1 © IEC:1999 – 3 –
CONTENTS
Page
FOREWORD.5
INTRODUCTION.9
Clause
1 Scope.11
2 Normative references.11
3 Definitions .11
4 Fire hazard assessment.13
4.1 General .13
4.2 Development of fire hazard assessment.13
5 Fire hazard tests. 21
5.1 General .21
5.2 Hazard assessment .21
5.3 Types of fire hazard tests.21
5.4 Preparation of requirements and test specifications.25
Annex A (informative) Flow charts .31
Annex B (informative) Use of rigid plastic conduit – A fire hazard assessment .47
Bibliography .73
60695-1-1 © IEC:1999 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIRE HAZARD TESTING –
Part 1-1: Guidance for assessing the fire hazard of
electrotechnical products – General guidelines
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International
Organization for Standardization (ISO) in accordance with conditions determined by agreement between the
two organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60695-1-1 has been prepared by IEC technical committee 89: Fire
hazard testing.
This third edition cancels and replaces the second edition published in 1995 and the
corrigendum (1996). It also constitutes a technical revision.
This standard has the status of a basic safety standard in accordance with IEC Guide 104.
The text of this standard is based on the second edition, the corrigendum and the following
documents:
FDIS Report on voting
89/374/FDIS 89/381/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 3.
Annexes A and B are for information only.
The contents of the corrigenda of January 2000 and August 2000 have been included in this copy.
60695-1-1 © IEC:1999 – 7 –
The committee has decided that this publication remains valid until 2005.
At this date, in accordance with the committee’s decision, the publication will be
•
reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
60695-1-1 © IEC:1999 – 9 –
INTRODUCTION
The risk of fire needs to be considered in any electrical circuit. With regard to this risk, the
objective of component circuit and equipment design and the choice of material is to reduce
the likelihood of fire even in the event of foreseeable abnormal use, malfunction or failure. The
primary aim is to prevent ignition due to the electrically energized part but, if ignition and fire
do occur, to control the fire preferably within the bounds of the enclosure of the
electrotechnical product. In cases where surfaces of the electrotechnical products are exposed
to an external fire, care will be taken to ensure that they do not contribute to the fire growth to
a greater extent than the building products or structures in the immediately surrounding areas.
60695-1-1 © IEC:1999 – 11 –
FIRE HAZARD TESTING –
Part 1-1: Guidance for assessing the fire hazard of
electrotechnical products – General guidelines
1 Scope
This part of IEC 60695 provides guidance for assessing the fire hazard of electrotechnical
products (see clause 4) and for the resulting development of fire hazard testing (see clause 5)
as related directly to harm to people, animals or property. Products, as defined in this
standard, relate to materials, components or complete end-use products.
This standard is intended as guidance to IEC committees, and should be used with respect to
their individual applications. Attention is drawn to the principles in IEC Guide 104, and to the
role of committees with safety pilot functions and safety group functions.
One of the responsibilities of a technical committee is, wherever applicable, to make use of
basic safety publications in the preparation of its publications.
2 Normative references
The following normative documents contain provisions which, through reference in this text,
constitute provisions of this part of IEC 60695. For dated references, subsequent amendments
to, or revisions of, any of these publications do not apply. However, parties to agreements
based on this part of IEC 60695 are encouraged to investigate the possibility of applying the
most recent editions of the normative documents indicated below. For undated references, the
latest edition of the normative document referred to applies. Members of IEC and ISO maintain
registers of currently valid International Standards.
IEC 60695-4:1993, Fire hazard testing – Part 4: Terminology concerning fire tests
IEC Guide 104:1997, The preparation of safety publications and the use of basic safety
publications and group safety publications
IEC Guide 109:1995, Environmental aspects – Inclusion in electrotechnical product standards
ISO/IEC Guide 52:1990, Glossary of fire terms and definitions
3 Definitions
For the purposes of this part of IEC 60695, the following definitions apply.
3.1
fire hazard
the potential for injury or loss of life and/or damage to property by a fire
60695-1-1 © IEC:1999 – 13 –
3.2
fire risk
the probability of fire
NOTE The risk is described in terms of probability, combining:
a) the frequency of occurrence of an undesired event to be expected in a given technical operation or state, and,
b) the extent of damage to be expected on the occurrence of the event.
4 Fire hazard assessment
4.1 General
It is important to understand and maintain the differences between "fire hazard" and "fire risk".
The primary concern for hazard assessment is to minimize the risk of fires caused by
electrically induced ignition within electrotechnical products and, should one start, to limit fire
propagation. External events, such as the outbreak of a fire in the environment, shall also be
considered, but as a secondary matter and to a lesser extent; however, deliberate misuse of
an electrotechnical product shall, in general, be disregarded.
Consideration shall also be given to heat release and opacity, toxicity and corrosivity of the
smoke from a burning product, and any necessary ability to function under fire conditions.
These hazards are all related to ignition and fire growth. The emission of gases may also lead
to a risk of explosion under certain circumstances.
Certain electrotechnical products, such as large enclosures, insulated cables and conduits,
may in fact cover large portions of surfaces and finishing materials of building construction or
may penetrate fire-resisting walls. In these circumstances, electrotechnical products, when
exposed to an external fire, shall be evaluated from the standpoint of their contribution to the
fire hazard in comparison to the building materials or structure lacking the installation of
electrotechnical products.
Following a detailed review of all the hazards related to a fire scenario, the final product
standards, as drafted, should include a series of tests or a single test, as appropriate, to
address the specific hazard(s) defined.
4.2 Development of fire hazard assessment
4.2.1 Overview of fire hazard elements
The fire hazard of an electrotechnical product depends on its characteristics, service
conditions and the environment in which it is used, including the number and type of people,
the value and vulnerability of property to be exposed to a fire involving that product. Therefore,
a fire hazard assessment procedure for a particular product shall describe the product, its
conditions of operation and its environment.
4.2.2 Basic steps
The basic steps to follow in developing a fire hazard assessment are:
a) the definition of the scope (for example, the electrotechnical product range concerned) and
the context (for example, where and how the products are used) (see 4.2.2.1);
b) the identification of the scenarios of concern (see 4.2.2.2);
c) the selection of the criteria to be used (see 4.2.2.3);
d) the interpretation of results (see 4.2.2.4).
60695-1-1 © IEC:1999 – 15 –
4.2.2.1 Definition of the scope and context
The first step involves defining the range of electrotechnical products to which the fire hazard
assessment is to apply, examining the points of variability and commonality in the product
range and its uses which may define the parameters of the fire hazard assessment procedure.
This may be done by answering the questions set out below.
Range of electrotechnical products
a)
What is the definition of the product to be covered? Is the product described well enough
that it can always be determined whether the product is in the range? Is it described by an
applicable IEC standard? Is the description broad enough so that all products capable of
substituting for the products covered are also included? Does the scope allow it to be
determined if a given product is covered?
b) Circumstances o
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.