SIST EN 61034-1:2005

SLOVENSKI SIST EN 61034-1:2005

STANDARD
december 2005
Merjenje gostote dima pri gorenju kablov pri določenih pogojih – 1. del:
Preskusni aparat (IEC 61034-1:2005)
Measurement of smoke density of cables burning under defined conditions - Part 1:
Test apparatus (IEC 61034-1:2005)
ICS 13.220.40; 29.060.20 Referenčna številka
SIST EN 61034-1:2005(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

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EUROPEAN STANDARD EN 61034-1
NORME EUROPÉENNE
EUROPÄISCHE NORM August 2005

ICS 13.220.40; 29.20; 29.060.20 Supersedes EN 50268-1:1999


English version


Measurement of smoke density of cables
burning under defined conditions
Part 1: Test apparatus
(IEC 61034-1:2005)


Mesure de la densité de fumées Messung der Rauchdichte von Kabeln
dégagées par des câbles brûlant und isolierten Leitungen beim Brennen
dans des conditions définies unter definierten Bedingungen
Partie 1: Appareillage d'essai Teil 1: Prüfeinrichtung
(CEI 61034-1:2005) (IEC 61034-1:2005)



This European Standard was approved by CENELEC on 2005-06-01. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and
notified to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 61034-1:2005 E

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EN 61034-1:2005 - 2 -
Foreword
The text of document 20/754/FDIS, future edition 3 of IEC 61034-1, prepared by IEC TC 20, Electric
cables, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
EN 61034-1 on 2005-06-01.
The principal change with respect to EN 50268-1 is a closer definition of the support for the cable(s)
under test.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2006-03-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2008-06-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61034-1:2005 was approved by CENELEC as a European
Standard without any modification.
__________

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- 3 - EN 61034-1:2005
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
NOTE Where an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
IEC 60695-4 2005 Fire hazard testing - Part 4: Terminology - -
concerning fire tests for electrotechnical
products

IEC Guide 104 1997 The preparation of safety publications - -
and the use of basic safety publications
and group safety publications

ISO 13943 2000 Fire safety - Vocabulary EN ISO 13943 2000

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NORME CEI
INTERNATIONALE
IEC



61034-1
INTERNATIONAL


Troisième édition
STANDARD

Third edition

2005-04


PUBLICATION GROUPÉE DE SÉCURITÉ
GROUP SAFETY PUBLICATION
Mesure de la densité de fumées
dégagées par des câbles brûlant
dans des conditions définies –
Partie 1:
Appareillage d'essai

Measurement of smoke density of cables
burning under defined conditions –
Part 1:
Test apparatus

 IEC 2005 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 any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photo-copie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
CODE PRIX
N
Commission Electrotechnique Internationale
PRICE CODE
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue

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61034-1  IEC:2005 – 3 –
CONTENTS
FOREWORD.5
INTRODUCTION.9

1 Scope.11
2 Normative references.11
3 Terms and definitions .11
4 Details of test enclosure .11
5 Photometric system .13
6 Standard fire source .15
7 Smoke mixing.15
8 Blank test.15
8.1 Purpose.15
8.2 Procedure.15
9 Qualification of test apparatus.15
10 Qualification burning test .17
10.1 Purpose.17
10.2 Preparation of cube .17
10.3 Qualification fire sources .17
10.4 Test procedure .17
10.5 Calculation .17
10.6 Requirements.17

Annex A (informative) Guidance notes.25

Bibliography .29

Figure 1 – Plan view of test chamber.19
Figure 2 – Photometric system .21
Figure 3 – Metal tray .23

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61034-1  IEC:2005 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________

MEASUREMENT OF SMOKE DENSITY OF CABLES
BURNING UNDER DEFINED CONDITIONS –

Part 1: Test apparatus


FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of 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, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). 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. 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 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 IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61034-1 has been prepared by IEC technical committee 20: Electric
cables.
This third edition cancels and replaces the second edition published in 1997 and constitutes a
technical revision.
The principal changes with respect to the previous edition are as follows:
a) closer definition of the draught screen and the chamber orifices;
b) closer definition of the support for the cable(s) under test;
c) removal of minor differences with equivalent CENELEC work to allow parallel voting with
that body.
It has the status of a group safety publication in accordance with IEC Guide 104.

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61034-1  IEC:2005 – 7 –
The text of this standard is based on the following documents:
FDIS Report on voting
20/754/FDIS 20/766/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 2.
IEC 61034 consists of the following parts, under the general title Measurement of smoke
density of cables burning under defined conditions,
Part 1: Test apparatus
Part 2: Test procedure and requirements
The committee has decided that the contents of this publication will remain unchanged until the
maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

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61034-1  IEC:2005 – 9 –
INTRODUCTION
The measurement of smoke density is an important aspect in the evaluation of the burning
performance of cables as it is related to the evacuation of persons and accessibility for
firefighting.
IEC 61034 is published in two parts, which together specify a method of test for measurement
of smoke density of cables burning under defined conditions. Users of this test are reminded
that the configurations of cable in the test (i.e. as test pieces or bundles of test pieces) may not
represent actual installation conditions.
This Part 1 gives details of the test apparatus and verification procedure to be used for the
measurement of smoke density of the products of combustion of cables burnt under defined
3
conditions. It includes details of a test enclosure of 27m volume, a photometric system for
light measurement, the fire source, smoke mixing method and a qualification procedure. Annex
A gives guidance on various aspects of the test apparatus which may be useful when first
constructing the test enclosure.
Part 2 gives the test procedure, together with an informative annex giving recommended
requirements for compliance where no specified requirement is given in the particular cable
standard or specification.

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61034-1  IEC:2005 – 11 –
MEASUREMENT OF SMOKE DENSITY OF CABLES
BURNING UNDER DEFINED CONDITIONS –

Part 1: Test apparatus


1 Scope
This part of IEC 61034 provides details of the test apparatus to be used for measuring smoke
emission when electric or optical fibre cables are burnt under defined conditions, for example,
a few cables burnt horizontally. The light transmittance (l ) under flaming combustion and
t
smouldering conditions can be used as a means of comparing different cables or complying
with specific requirements.
NOTE For the purposes of this standard, the term "electric cable" covers all insulated metallic conductor cables
used for the conveyance of energy or signals.
2 Normative references
The following referenced documents are indispen
...