oSIST prEN 13501-3:2021
(Main)Fire classification of construction products and building elements - Part 3: Classification using data from fire resistance tests on products and elements used in building service installations: fire resistant ventilation ducts and fire dampers and or power, control and communication cables
Fire classification of construction products and building elements - Part 3: Classification using data from fire resistance tests on products and elements used in building service installations: fire resistant ventilation ducts and fire dampers and or power, control and communication cables
This document specifies the procedure for classification of the resistance to fire performance of construction products and building elements used as components of building service installations, using data from fire resistance tests which are within the direct field of application of the relevant test method. Classification on the basis of extended application of test results is also included in the scope of this document.
Products/elements for use in ventilation systems include (excluding smoke and heat exhaust ventilation):
- fire resisting ducts;
- fire dampers.
Products /elements for use in/as cables systems:
- intrinsic fire resistant cables/unprotected cables;
- fire protective systems for cable systems;
- supporting /suspension devices;
- associated components (connectors, glands, junctions, etc.)
Relevant test methods which have been prepared for these products/elements are listed in Clause 2.
Klassifizierung von Bauprodukten und Bauteilen zu ihrem Brandverhalten - Teil 3: Klassifizierung mit den Ergebnissen aus den Feuerwiderstandsprüfungen an Bauprodukten und Bauteilen von haustechnischen Anlagen: feuerwiderstandsfähige Lüftungsleitungen und Brandschutzklappen und/oder Starkstromkabel und leitungen, Steuer- und Kommunikationskabel
Dieses Dokument legt das Verfahren zur Klassifizierung der Feuerwiderstandsfähigkeit von Bauprodukten und Bauteilen fest, die als Teil von haustechnischen Anlagen in Gebäuden benutzt werden. Dabei werden die Ergebnisse von Feuerwiderstandsprüfungen benutzt, die innerhalb des direkten Anwendungsbereichs des entsprechenden Prüfverfahrens liegen. Die Klassifizierung auf Basis des erweiterten Anwendungsbereiches von Versuchsergebnissen ist ebenfalls in diesem Dokument behandelt.
Bauprodukte/Bauteile zur Verwendung in Lüftungsanlagen (mit Ausnahme von Bauprodukten zur Rauch- und Wärmefreihaltung) beinhalten:
- feuerwiderstandsfähige Leitungen;
- Brandschutzklappen.
Produkte/Elemente zur Verwendung in/als Kabelsysteme(n):
- Funktionserhaltskabel/ungeschützte Kabel;
- Brandschutzsysteme für Kabelsysteme;
- Stütz /Haltevorrichtungen;
- zugehörige Komponenten (Anschlussstellen, Flansche, Verbindungsteile usw.).
Relevante Prüfverfahren, die für diese Bauprodukte/ teile entwickelt wurden, sind in Abschnitt 2 aufgeführt.
Classement au feu des produits et éléments de construction - Partie 3 : Classement utilisant des données d’essais de résistance au feu de produits et éléments utilisés dans des installations de service : conduits de ventilation et clapets résistants au feu, et/ou câbles de puissance, de commande et de communication
Le présent document spécifie la méthode de classement de performance de la résistance au feu des produits et des éléments de construction utilisés comme composants des installations de service, à partir des données des essais de résistance au feu qui font partie du domaine d’application directe de la méthode d’essai correspondante. Le classement sur la base de l’application étendue des résultats d’essai est également inclus dans le domaine d’application du présent document.
Les produits/éléments pour utilisation dans les systèmes de ventilation comprennent (à l’exclusion des ventilateurs extracteurs de fumées et de chaleur) :
- les conduits résistants au feu ;
- les clapets résistants au feu.
Les produits/éléments pour utilisation dans des systèmes de câbles ou en tant que systèmes de câbles incluent :
- les câbles non protégés/câbles à résistance au feu intrinsèque ;
- les systèmes de protection incendie pour les systèmes de câbles ;
- les dispositifs de suspension/support ;
- les composants associés (connecteurs, presse-étoupe, jonctions, etc.)
Les méthodes d’essai pertinentes qui ont été préparées pour ces produits/éléments sont répertoriées à l’Article 2.
Požarna klasifikacija gradbenih proizvodov in elementov stavb - 3. del: Klasifikacija na podlagi podatkov iz preskusov požarne odpornosti proizvodov in elementov servisnih inštalacij v stavbah: požarno odporni kanali in požarne lopute in/ali napajalni, krmilni in komunikacijski kabli
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 13501-3:2021
01-julij-2021
Požarna klasifikacija gradbenih proizvodov in elementov stavb - 3. del:
Klasifikacija na podlagi podatkov iz preskusov požarne odpornosti proizvodov in
elementov servisnih inštalacij v stavbah: požarno odporni kanali in požarne lopute
in/ali napajalni, krmilni in komunikacijski kabli
Fire classification of construction products and building elements - Part 3: Classification
using data from fire resistance tests on products and elements used in building service
installations: fire resistant ventilation ducts and fire dampers and or power, control and
communication cables
Klassifizierung von Bauprodukten und Bauteilen zu ihrem Brandverhalten - Teil 3:
Klassifizierung mit den Ergebnissen aus den Feuerwiderstandsprüfungen an
Bauprodukten und Bauteilen von haustechnischen Anlagen: feuerwiderstandsfähige
Lüftungsleitungen und Brandschutzklappen und/oder Starkstromkabel und leitungen,
Steuer- und Kommunikationskabel
Classement au feu des produits et éléments de construction - Partie 3 : Classement
utilisant des données d’essais de résistance au feu de produits et éléments utilisés dans
des installations de service : conduits de ventilation et clapets résistants au feu, et/ou
câbles de puissance, de commande et de communication
Ta slovenski standard je istoveten z: prEN 13501-3
ICS:
13.220.50 Požarna odpornost Fire-resistance of building
gradbenih materialov in materials and elements
elementov
91.060.40 Dimniki, jaški, kanali Chimneys, shafts, ducts
oSIST prEN 13501-3:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 13501-3:2021
DRAFT
EUROPEAN STANDARD
prEN 13501-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2021
ICS 13.220.50 Will supersede EN 13501-3:2005+A1:2009
English Version
Fire classification of construction products and building
elements - Part 3: Classification using data from fire
resistance tests on products and elements used in building
service installations: fire resistant ventilation ducts and
fire dampers and or power, control and communication
cables
Classement au feu des produits et éléments de Klassifizierung von Bauprodukten und Bauteilen zu
construction - Partie 3 : Classement utilisant des ihrem Brandverhalten - Teil 3: Klassifizierung mit den
données d'essais de résistance au feu de produits et Ergebnissen aus den Feuerwiderstandsprüfungen an
éléments utilisés dans des installations de service : Bauprodukten und Bauteilen von haustechnischen
conduits de ventilation et clapets résistants au feu, Anlagen: feuerwiderstandsfähige Lüftungsleitungen
et/ou câbles de puissance, de commande et de und Brandschutzklappen und/oder Starkstromkabel
communication und leitungen, Steuer- und Kommunikationskabel
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 127.
If this draft becomes a European Standard, CEN 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.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13501-3:2021 E
worldwide for CEN national Members.
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Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Fire scenarios . 8
4.1 General. 8
4.2 The standard temperature/time curve (post flashover fire) . 9
4.3 Constant temperature attack at 842 °C . 9
5 Resistance to fire performance characteristics . 9
5.1 Performance characteristics. 9
5.1.1 Introduction . 9
5.1.2 E – Integrity . 9
5.1.3 I – Insulation . 10
5.1.4 S – Smoke leakage . 10
5.1.5 P – Continuity of power and/or signal supply . 10
5.1.6 PH – Continuity of power and/or signal supply . 10
6 Declaration of fire resistance performance . 10
6.1 Classification periods . 10
6.2 Designatory letters . 10
6.3 Declaration of performance . 11
6.4 Combinations of classes . 12
6.5 Presentation of classification . 12
6.6 Declaration of fire resistance classes in product specifications . 12
7 Classification procedure for fire resistance . 13
7.1 General. 13
7.1.1 Procedure . 13
7.1.2 General rules for deducing the number of fire resistance tests. 13
7.1.3 Field of application . 14
7.2 Classification. 14
7.2.1 General. 14
7.2.2 Ventilation ducts . 14
7.2.3 Fire dampers . 16
7.2.4 Fire protective systems for cable systems and associated components . 18
7.2.5 Unprotected electrical cable . 19
7.2.6 Unprotected small electrical cables . 20
7.2.7 Cable management systems (CMS) providing support for cables with intrinsic fire
resistance . 21
Annex A (normative) Classification report . 22
A.1 General. 22
A.2 Content and format . 22
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Bibliography . 27
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European foreword
This document (prEN 13501-3:2021) has been prepared by Technical Committee CEN/TC 127 “Fire
safety in buildings”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 13501-3:2005+A1:2009.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
EN 13501 consists of the following parts:
— Part 1: Classification using data from reaction to fire tests;
— Part 2: Classification using data from fire resistance tests, excluding ventilation services;
— Part 3: Classification using data from fire resistance tests on products and elements used in building
service installations: fire resistant ventilation ducts and fire dampers and power, control and
communication cables;
— Part 4: Classification using data from fire resistance tests on components of smoke control systems;
— Part 5: Classification using data from external fire exposure to roofs tests;
— Part 6: Classification using data from, reaction to fire tests on power, control and communication cables.
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Introduction
The aim of this document is to define a harmonized procedure for the classification for resistance to fire
of construction products and elements. This classification is based on the test procedures listed
in Clause 2 and the relevant field of application procedures.
This document is prepared in support of the second essential requirement in the EC Construction
Products Regulation (305/2011), which is detailed in the Interpretative Document number 2
(ID2): Safety in case of fire (OJ C62 Vol 37). It reflects the Commission Decision (EU) 2000/367/EC
of 03/05/2000 amended by 2003/629/EC of 27/08/2003 and 2011/232/EC of 11/04/as regards the
classification of the resistance to fire performance of construction products, construction works and parts
thereof. DD MM 20XX specify performance and classes regarding fire resistance. These classes are
identified by designation letters, each of which refers to an important characteristic of fire resistance
behaviour.
This document provides for a common understanding for these requirements. It interprets the functional
requirements for the different groups of building products and elements and explains the method for
deriving their classification on the basis of test results and/or extended application results for individual
products or elements.
NOTE Test reports constitute the basis for extended application reports as explained in EN 15725.
CEN, CENELEC and EOTA committees preparing technical specifications which contain performance
requirements against fire resistance tests should make reference to the fire resistance classification given
in this document and not refer directly to any specific fire test method.
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1 Scope
This document specifies the procedure for classification of the resistance to fire performance of
construction products and building elements used as components of building service installations, using
data from fire resistance tests which are within the direct field of application of the relevant test method.
Classification on the basis of extended application of test results is also included in the scope of this
document.
Products/elements for use in ventilation systems include (excluding smoke and heat exhaust
ventilation):
— fire resisting ducts;
— fire dampers.
Products /elements for use in/as cables systems:
— intrinsic fire resistant cables/unprotected cables;
— fire protective systems for cable systems;
— supporting /suspension devices;
— associated components (connectors, glands, junctions, etc.)
Relevant test methods which have been prepared for these products/elements are listed in Clause 2.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
EN 1366-1, Fire resistance tests for service installations - Part 1: Ventilation ducts
EN 1366-2:2015, Fire resistance tests for service installations - Part 2: Fire dampers
EN 15725, Extended application reports on the fire performance of construction products and building
elements
EN 50200, Method of test for resistance to fire of unprotected small cables for use in emergency circuits
EN 50289-4-16, Communication cables - Specifications for test methods - Part 4-16: Environmental test
methods - Circuit integrity under fire conditions
EN 50577, Electric cables - Fire resistance test for unprotected electric cables (P classification)
EN 50582, Procedure to assess the circuit integrity of optical fibres in a cable under resistance to fire testing
CLC/FprTR 50658, Cable management systems (CMS) providing support for cables with intrinsic fire
resistance
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3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1
direct field of application
outcome of a process (involving the application of defined rules) whereby a test result is deemed to be
equally valid for variations in one or more of the product properties and/or intended end use applications
3.2
extended field of application
outcome of a process (involving the application of defined rules that may incorporate calculation
procedures) that predicts, for a variation of a product property and/or its intended end use
application(s), a test result on the basis of one or more test results to the same test standard
3.3
test specimen
element (or part) of building construction provided for the purpose of determining either its fire
resistance or its contribution to the fire resistance of another building element
Note 1 to entry: For the purposes of this document, this definition refers to a specific component of a service
installation.
[SOURCE: EN 1363-1:2020, modified]
3.4
fire resisting ventilation duct
duct used for the distribution or extraction of air and designed to provide a degree of fire resistance
Note 1 to entry: Fire resisting ducts may be subject to an additional classification S: smoke leakage.
[SOURCE: EN 1366-1:2014+A1:2020, modified]
3.5
fire damper
device for use in heating ventilation and air-conditioning (HAVC) system at fire boundaries to maintain
compartmentation and protect means of escape in case of fire
Note 1 to entry: It may have reduced smoke leakage characteristics.
[SOURCE: EN 1366-2:2015]
3.6
extended application result
predicted result for performance parameter obtained following the process of extended field of
application
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3.7
extended application report
document reporting extended application results, including all details of the process leading to those
results
Note 1 to entry: Extended application reports are prepared in accordance with EN 15725.
3.8
fire protective system for cables/cable systems
heat insulating assembly of flexible or rigid materials inside which cables or cable systems are arranged
Note 1 to entry: The protective system may be ducts, shafts, conducts, trunkings, jacket enclosures or similar
systems.
3.9
electrical cables
power, control and communication cables, including optical fibre cables and hybrid cables which are a
combination of two or more of these cable types
3.10
small electrical cables
power, control and communication cables, including optical fibre cables and hybrid cables with an overall
2
diameter not exceeding 20 mm and with conductor size up to and including 2,5 mm
Note 1 to entry: For optical cables only the 20 mm diameter limit applies.
3.11
cable management system
CMS
assembly providing support for cables with intrinsic fire resistance including different system
components intended for the accommodation of insulated conductors, cables and possibly other
electrical equipment in electrical and/or communication systems
Note 1 to entry: Examples of cable management systems (CMS) providing support for cables with intrinsic fire
resistance tested according to CLC/FprTR 50658 are cable tray systems, mesh cable tray systems, cable ladder
systems, cable trunking systems, conduit systems, cable ducting systems, cable cleats, etc.
4 Fire scenarios
4.1 General
Fire resistance shall be assessed using the thermal attack given in 4.2 or 4.3 as appropriate. The levels of
thermal action given in 4.2 and 4.3 reflect different fire scenarios and the standards which prescribe their
translation into practical tests give tolerances for their application.
NOTE Other heating curves can exist:
— ‘smouldering’ fire test is only used if the fire resistance performance of the product/element is expected
to be reduced by exposure to temperatures associated with the growth stage of a fire. It is, therefore, particularly
relevant to products/elements whose performance could be dependent upon high heating rates below
approximately 500 °C (as provided during the ‘standard temperature/time’ curve) for achievement of their
classifications (i.e. mainly reactive or intumescent products). Further details relating to the practical application of
this curve, and other test parameters, e.g. tolerances, are given in EN 1363-2;
— hydrocarbon curve is another example;
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— also for extreme fire scenarios (e.g. traffic tunnels and nuclear plants), more severe conventional curves
can be specified. These are not, however, used for the classification of elements according to this document.
4.2 The standard temperature/time curve (post flashover fire)
When applied as a basis for testing, the standard temperature/time relationship shall be applied for the
full duration of the test. The relationship, which is a model of a fully developed fire in a compartment, is
given by the following relationship:
T 345 log 8t+ 1 + 20 (1)
( )
10
where
t is the time from the start of the test in minutes, and
T is the mean furnace temperature in °C.
Further details relating to the practical application of this curve, and other test parameters, e.g.
tolerances, are given in EN 1363-1.
4.3 Constant temperature attack at 842 °C
In addition to the heating regime given in 4.2, the evaluation of small diameter unprotected electrical
cables made using a notional constant temperature attack is carried out by means of flame single burner
attack instead of furnace testing. The specified temperature and the rate at which the temperature is
reached, is specified in the relevant test method.
5 Resistance to fire performance characteristics
5.1 Performance characteristics
5.1.1 Introduction
5.1.2 to 5.1.6 describe which performance characteristics apply to which products/elements.
5.1.2 E – Integrity
Integrity E is the ability of a component of a service installation to prevent the transmission of fire as a
result of the passage of significant quantities of flames or hot gases from the fire to the unexposed side,
thereby causing ignition either of the non-fire exposed surface or of any material adjacent to that surface.
The assessment of integrity is made on the basis of one or more of the following aspects simultaneously:
— cracks or openings in excess of given dimensions;
— ignition of a cotton pad;
— sustained flaming on the unexposed side;
— leakage in excess of given values.
The integrity shall be determined by all methods during the test. The cotton pad procedure shall be
applied until the pad ignites and, once it has ignited, it shall be withdrawn and the test continued until all
aspects have been exceeded (the sponsor has the option, however, of stopping the test once the desired
level has been reached). The times of each mode of integrity failure shall be recorded.
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Classification of integrity is according to whether or not the component is also classified for insulation.
Where a component is classified both for integrity E and insulation I, the integrity value shall be that
determined by whichever of the four criteria fails first. Where a component is classified E but without
an I classification, failure of the cotton pad shall not be taken into account.
When testing fire dampers or fire resisting ducts against the slow heating curve (EN 1363-2), the leakage
criteria are applicable. However, the leakage rates measured during the first 25 min of the test shall be
disregarded.
For dampers, cracks or openings, ignition of cotton pad and sustained flaming on the unexposed side shall
be taken into account only for the area around the ventilation duct and wall or floor junction. The criterion
3 2
inside the duct containing the damper shall be the limitation of the leakage rate to 360 m /(m ⋅h) after
the first five minutes of exposure to the standard temperature/time curve.
5.1.3 I – Insulation
Insulation I is the ability of a component of a service installation to withstand fire exposure without the
transmission of fire as a result of significant transfer of heat. Transmission shall be limited so that
unexposed surfaces or any material in close proximity to those surfaces are not ignited. The component
shall also provide a barrier to heat, sufficient to protect people near to it.
5.1.4 S – Smoke leakage
Smoke leakage S is the ability of the component to resist the passage of gases or smoke at ambient
temperature and during exposure to the standard temperature/time test. The leakage rate is corrected
to 20 °C.
5.1.5 P – Continuity of power and/or signal supply
Continuity of power and/or signal supply P is the ability of the cable to maintain a reliable form of power
supply or signal when exposed to the conditions of the standard temperature / time curve (see 4.2).
5.1.6 PH – Continuity of power and/or signal supply
Continuity of power and/or signal supply PH is the ability of power, control and communication cables,
including optical cables and hybrid cables with an overall diameter not exceeding 20 mm and with
2
conductor size less or equal to 2,5 mm to maintain a reliable form of power supply or signal from the
source to the safety installation(s) when exposed to a constant flame temperature attack of a
notional 842 °C (see 4.3). For optical cables only the 20 mm diameter limit applies.
6 Declaration of fire resistance performance
6.1 Classification periods
All classification periods against any of the characteristics shall be declared in minutes using one of the
periods 15, 20, 30, 45, 60, 90, 120, 180 or 240.
Not all periods apply to all components, and further subclauses show which classification periods apply
to which products
6.2 Designatory letters
For the classification of components of service installations, use shall be made of the designatory letters
explained in 5.1.
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6.3 Declaration of performance
Combinations of these designatory letters, as appropriate, shall be used as part of the classification of
performance. They shall be supplemented by the time, in elapsed completed minutes of the nearest lower
class, during which the functional requirements are satisfied.
The classes shall be expressed as follows:
EI ttt (…) ttt being the classification period during which the criteria integrity and
insulation are satisfied;
E ttt (…) ttt being the classification period during which the criterion integrity is satisfied;
EI ttt (…) S ttt being the classification period during which the criteria integrity, insulation
and smoke leakage are satisfied;
E ttt (…) S ttt being the classification period during which the criteria integrity and smoke
leakage are satisfied.
Designatory letters within brackets shall include all information on the direction of exposure of the
specimen, as specified in 7.2.2.4 and 7.2.3.4.
Thus, the following classes may be defined:
EI 15 (…) S, E30 (…) S, E 60 (…)
The classes for ‘Fire protective systems for cable systems and associated components’ shall be expressed
as follows:
P ttt ttt being the classification period during which the criterion continuity of power and/or
signal supply is satisfied; (EN 1366-11).
The classes for unprotected electrical cables shall be expressed as either:
P ttt ttt being the classification period during which the criterion continuity of power and/or
signal supply is satisfied as defined either in EN 50577, CLC/FprTR 50658, EN 50582 or
EN 50289-4-16;
or
PH ttt ttt being the classification period during which the criteria continuity of power and/or
signal supply is satisfied as defined in EN 50200 or EN 50582 or EN 50289-4-16.
The classes for ‘CMS for intrinsic fire resistant cable’ shall be expressed as follows:
P ttt ttt being the classification period during which the criterion continuity of power and/or signal
supply is satisfied; CLC/FprTR 50658.
Test results and extended application results shall always be rounded down to the nearest lower class.
When characteristics are combined, the time declared is that for the characteristic having the shortest
time.
NOTE The P classification for electrical cables only covers cables on a representative installation. By changing
the installation system the P classification is no longer valid except if such modification is covered by the field of
application defined in CLC/FprTR 50658.
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6.4 Combinations of classes
Only those combinations of designatory letters and performance times explained in Clause 7 shall be used
for the relevant products/elements.
6.5 Presentation of classification
The classification shall be presented according to the following template
...
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