SIST EN 1366-5:2021
(Main)Fire resistance tests for service installations - Part 5: Service ducts and shafts
Fire resistance tests for service installations - Part 5: Service ducts and shafts
This European Standard specifies a method for determining the fire resistance of horizontal service ducts and vertical service shafts, which pass through walls or floors and enclose pipes and cables. The test examines the behaviour of ducts and shafts exposed to fire from outside and from inside the duct. This European Standard is intended to be read in conjunction with EN 1363-1.
This European Standard does not examine the risk of fire spread as a result of thermal conduction along the piping installed in service ducts or shafts, or thermal conduction through the media these pipes carry. It does not cover the risk of damage produced by thermal elongation or shortening of tubes and cables as a result of fire, or damaged pipe suspensions. This European Standard does not give guidance on how to test one, two or three sided service ducts or shafts.
NOTE Guidance on testing service ducts and shafts of less than four sides will be covered in the extended field of application rules being developed by CEN/TC 127.
This test is unsuitable for evaluating service ducts with internal barriers at walls and floors.
Whilst the walls of service ducts or shafts tested to this method may provide specified levels of integrity or insulation, testing to this European Standard does not replace the testing of the functional endurance of small electrical cables which is covered in EN 50200.
Fire resistance testing of ducts for air distribution systems is covered in EN 1366-1.
Feuerwiderstandsprüfungen für Installationen - Teil 5: Installationskanäle und -schächte
Dieses Dokument legt ein Prüfverfahren für die Ermittlung der Feuerwiderstandsfähigkeit von horizontalen Installationskanälen und vertikalen Installationsschächten, die Wände oder Decken durchqueren und Rohre und Kabel beinhalten, fest mit dem Ziel, eine Klassifizierung nach EN 13501-2 vorzunehmen. Die Prüfung ermittelt das Verhalten von Installationskanälen und -schächten bei Brandbeanspruchung sowohl von außerhalb als auch von innerhalb des Systems. Dieses Dokument gilt in Verbindung mit EN 1363 1.
Dieses Dokument befasst sich nicht mit der Gefahr der Brandübertragung infolge von Wärmeleitung durch die Rohrleitungen oder Kabel, die in Installationskanälen oder –schächten installiert sind, oder infolge von Wärmeleitung über die Medien, welche diese Rohrleitungen führen. Diese Prüfung deckt auch nicht die Gefahr der Beschädigung durch die thermische Verlängerung oder Verkürzung von Rohren oder Kabeln infolge eines Brandes oder durch beschädigte Rohraufhängungen ab. Dieses Dokument enthält keine Anleitung zum Prüfen von ein-, zwei- oder dreiseitigen Installationskanälen oder Installationsschächten.
ANMERKUNG Eine Anleitung zum Prüfen von Installationskanälen und –schächten mit weniger als vier Seiten wird von den Regeln zum erweiterten Anwendungsbereich abgedeckt werden, die im CEN/TC 127 in Erarbeitung sind.
Die Prüfung kann sowohl für Systeme mit Platten als auch für Systeme mit einer durchgehenden Abdeckung aus intumeszierenden Materialien auf den Platten angewendet werden. Sie kann nicht für Systeme angewendet werden, in denen intumeszierendes Material nur im Bereich der Durchführung aufgebracht wird.
Diese Prüfung eignet sich nicht für die Bewertung von Installationskanälen oder –schächten mit inneren Abschottungen im Bereich von Wänden und Decken.
Die Prüfung ist ungeeignet für die Bewertung von Brandschutzsystemen für Kabelsysteme und zugehörige Komponenten zur Aufrechterhaltung des Raumabschlusses im Brandfall. Dies wird in EN 1366 11, Feuerwiderstandsprüfungen für Installationen — Teil 11: Brandschutzsysteme für Kabelanlagen und zugehörige Komponenten, behandelt.
Obwohl die Wände der nach diesem Verfahren geprüften Installationskanäle oder -schächte eine bestimmte Klasse des Raumabschlusses oder der Wärmedämmung liefern können, ersetzt eine Prüfung nach diesem Dokument nicht die Prüfung des Funktionserhalts von elektrischen Kabeln nach EN 50200.
Die Feuerwiderstandsprüfung von Lüftungsleitungen wird in EN 1366 1 behandelt.
Essais de résistance au feu des installations de service - Partie 5 : Gaines pour installation technique
Le présent document spécifie une méthode de détermination de la résistance au feu des gaines horizontales ou verticales pour installation technique qui traversent les murs ou les planchers et qui enferment des tuyaux et des câbles, afin de les classer conformément à l’EN 13501-2. Le scénario d’essai examine le comportement des gaines exposées à un feu depuis l’extérieur ou depuis l’intérieur du système. Le présent document est destiné à être lu conjointement avec l’EN 1363-1.
Le présent document ne traite pas des risques de propagation du feu dus à la conduction de chaleur le long des canalisations ou des câblages installés dans les gaines pour installation technique ou au transfert de chaleur à travers les fluides qu’ils véhiculent. Il ne traite pas non plus des risques de dégradation produite par allongement ou raccourcissement thermique des tubes et des câbles suite à un incendie, ni de la détérioration des dispositifs de suspension des tuyaux. Ce document ne fournit pas de conseils sur la manière d’essayer les gaines pour installation technique à un, deux ou trois côtés.
NOTE Les conseils relatifs à l’essai des gaines pour installation technique ayant moins de quatre côtés seront traités dans les règles de domaine d’application étendue actuellement en cours d’élaboration au sein du CEN/TC 127.
Cet essai peut être utilisé pour les systèmes munis de plaques et également pour les systèmes dont les plaques comportent une couverture continue en matériaux intumescents. Il ne peut pas être utilisé pour des systèmes dans lesquels le matériau intumescent est seulement appliqué dans la zone de pénétration.
Le présent essai ne convient pas à l’évaluation des gaines pour installation technique avec recoupements internes au niveau des murs et planchers.
Le présent essai ne convient pas à l’évaluation des systèmes de protection incendie pour les systèmes de câbles et composants associés dont la fonctionnalité électrique est maintenue en cas d’incendie. Ces derniers sont couverts par l’EN 1366-11 : Systèmes de protection incendie pour les systèmes de câbles et composants associés - Partie 11 : Systèmes de protection incendie pour les systèmes de câbles et composants associés.
Bien que les parois des gaines pour installation technique soumises à l’essai selon la présente méthode puissent fournir des niveaux spécifiés d’étanchéité au feu ou d’isolation thermique, l’essai conformément au présent document ne remplace pas les essais de résistance fonctionnelle des petits câbles électriques traités dans l’EN 50200.
Les essais de résistance au feu des conduits de ventilation sont traités dans l’EN 1366-1.
Preskusi požarne odpornosti servisnih inštalacij - 5. del: Servisni kanali in jaški
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 1366-5:2021
01-marec-2021
Nadomešča:
SIST EN 1366-5:2010
Preskusi požarne odpornosti servisnih inštalacij - 5. del: Servisni kanali in jaški
Fire resistance tests for service installations - Part 5: Service ducts and shafts
Feuerwiderstandsprüfungen für Installationen - Teil 5: Installationskanäle und -schächte
Essais de résistance au feu des installations de service - Partie 5 : Gaines pour
installation technique
Ta slovenski standard je istoveten z: EN 1366-5:2021
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
SIST EN 1366-5:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 1366-5:2021
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SIST EN 1366-5:2021
EN 1366-5
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2021
EUROPÄISCHE NORM
ICS 13.220.50; 91.060.40 Supersedes EN 1366-5:2010
English Version
Fire resistance tests for service installations - Part 5:
Service ducts and shafts
Essais de résistance au feu des installations de service - Feuerwiderstandsprüfungen für Installationen - Teil 5:
Partie 5 : Gaines pour installation technique Installationskanäle und -schächte
This European Standard was approved by CEN on 27 December 2020.
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. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
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 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.
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. EN 1366-5:2021 E
worldwide for CEN national Members.
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SIST EN 1366-5:2021
EN 1366-5:2021 (E)
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Test equipment . 7
4.1 General . 7
4.2 Furnace . 7
4.3 Loading equipment . 7
4.4 Gas extraction equipment (optional). 7
5 Test conditions . 8
5.1 Furnace . 8
5.2 Loading. 8
6 Test specimen . 8
6.1 Size . 8
6.1.1 General . 8
6.1.2 Length . 8
6.1.3 Cross-section . 8
6.2 Number . 8
6.3 Design . 9
6.3.1 General . 9
6.3.2 Duct and shaft arrangement. 9
7 Installation of test specimen .10
7.1 General .10
7.2 Standard supporting construction .11
7.3 Non-standard supporting constructions .11
8 Conditioning .11
8.1 General .11
8.2 Water based sealing materials .11
9 Application of instrumentation .11
9.1 Thermocouples .11
9.1.1 Furnace thermocouples (plate thermometers) .11
9.1.2 Thermocouple locations .12
9.2 Pressure .12
10 Test procedure .12
2
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EN 1366-5:2021 (E)
10.1 General . 12
10.2 Test measurements and observations . 13
10.2.1 General . 13
10.2.2 Integrity . 13
10.2.3 Insulation (temperature of the surfaces outside the furnace – for both fire exposure
at the inside and exposure at the outside) . 13
10.2.4 Additional observations . 13
10.3 Termination of the test . 14
11 Performance criteria . 14
11.1 Integrity . 14
11.2 Insulation . 14
11.2.1 Insulation criteria for service ducts and shafts with combustible and
noncombustible services . 14
12 Test report . 14
13 Field of direct application of test results . 15
13.1 Walls or floors through which the service ducts or shafts lead . 15
13.2 Sizes of ducts or shafts . 15
13.3 Shapes . 15
13.4 Admissible services . 15
13.5 Suspension devices for ducts. 15
13.5.1 Material and sizing . 15
13.5.2 Elongation . 16
13.6 Distances . 16
13.6.1 Distance to the supporting construction . 16
13.6.2 Distance of the first joint after the supporting construction . 16
13.6.3 Distance between service ducts or service shafts in practice . 16
13.6.4 Distance between service outlets and penetrated wall or floor . 16
13.7 Access panels . 16
13.8 Service outlets . 16
Bibliography . 27
3
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SIST EN 1366-5:2021
EN 1366-5:2021 (E)
European foreword
This document (EN 1366-5:2021) has been prepared by Technical Committee CEN/TC 127 “Fire safety
in buildings”, the secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by August 2021, and conflicting national standards shall be
withdrawn at the latest by August 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 1366-5:2010.
Against EN 1366-5:2010 the following changes were introduced:
1) necessary dated references were updated;
2) clearer rules were given for the scope of the standard;
3) terms and definitions clarified and completed;
4) the location of thermocouples was clarified especially when testing the specimen including service
outlets and access panels;
5) drawings were improved and aligned to changes;
6) the thermocouple T3 from Version 2010 was deleted. It is not needed for measuring the property
„Integrity” and it leads to confusion concerning that property.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: 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 the United
Kingdom.
4
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SIST EN 1366-5:2021
EN 1366-5:2021 (E)
Introduction
The purpose of this test is to measure the ability of a service duct or shaft to resist the spread of fire from
one fire compartment to another with fire attack from inside or outside the duct or shaft. The test
specimens incorporate joints, service outlets and access openings as intended in practice and are
suspended as they would be in practice. Test specimens of service ducts are not loaded as in practice but
a standard load is included to represent a typical service load. Test specimens of service shafts are not
loaded as in practice, but a standard load is included to represent a typical service load.
CAUTION — The attention of all persons concerned with managing and carrying out this fire
resistance test is drawn to the fact that fire testing may be hazardous, and there is a possibility
that toxic and/or harmful smoke and gases may be involved during the test. Mechanical and
operational hazards may also arise during the construction of the test elements or structures,
their testing and disposal of test residues.
An assessment of all potential hazards and risks to health should be made, and safety precautions
should be identified and provided. Written safety instructions should be issued. Appropriate
training should be given to relevant personnel. Laboratory personnel should ensure that they
follow written safety instructions at all times.
5
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SIST EN 1366-5:2021
EN 1366-5:2021 (E)
1 Scope
This document specifies a method for determining the fire resistance of horizontal service ducts and
vertical service shafts, which pass through walls or floors and enclose pipes and cables, to classify them
according to EN 13501-2. The test scenario examines the behaviour of ducts and shafts exposed to fire
either from outside or from inside the system. This document is intended to be read in conjunction with
EN 1363-1.
This document does not examine the risk of fire spread as a result of thermal conduction along the piping
or cabling installed in service ducts or shafts or thermal conduction through the media these pipes carry.
It does not cover the risk of damage produced by thermal elongation or shortening of tubes and cables as
a result of fire or damaged pipe suspensions. This document does not give guidance on how to test one,
two or three sided service ducts or shafts.
NOTE Guidance on testing service ducts and shafts of less than four sides will be covered in the extended field
of application rules being developed by CEN/TC 127.
This test can be used for systems with boards and also for such systems with continuous covering with
intumescent materials on the boards. It cannot be used for systems where intumescent material is only
applied in the range of the penetration.
This test is unsuitable for evaluating service ducts or shafts with internal barriers at walls and floors.
This test is unsuitable for evaluating fire protective systems for cable systems and associated components
with maintenance of integrity in case of fire. This is covered by EN 1366-11: Fire protective systems for
cable systems and associated components - Part 11: Fire protective systems for cable systems and
associated components.
Whilst the walls of service ducts or shafts tested to this method may provide specified levels of integrity
or insulation, testing according this document does not replace the testing of the functional endurance of
small electrical cables which is covered in EN 50200.
Fire resistance testing of ducts for air distribution systems is covered in EN 1366-1.
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 1363-1:2020, Fire resistance tests — Part 1: General requirements
EN 13501-2, Fire classification of construction products and building elements — Part 2: Classification
using data from fire resistance tests, excluding ventilation services
EN ISO 898-1:2013, Mechanical properties of fasteners made of carbon steel and alloy steel — Part 1: Bolts,
screws and studs with specified property classes — Coarse thread and fine pitch thread (ISO 898-1:2009)
EN ISO 13943, Fire safety — Vocabulary (ISO 13943)
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SIST EN 1366-5:2021
EN 1366-5:2021 (E)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 1363-1, EN ISO 13943 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
service duct
mainly horizontal duct enclosing combustible or non-combustible services, such as pipes or cables
3.2
service shaft
mainly vertical shaft enclosing combustible or non-combustible services, such as pipes or cables
3.3
shutter of access opening
openable door or panel allowing for access to the services within the duct or shaft
3.4
supporting construction
wall, partition or floor which the duct or the shaft passes through in the test
3.5
board
rigid product of cross section in which the thickness is uniform and substantially smaller than the other
dimensions of the installations
4 Test equipment
4.1 General
In addition to the test equipment specified in EN 1363-1, the following are required.
4.2 Furnace
The furnace shall be capable of subjecting service ducts and shafts to the standard heating and pressure
conditions specified in EN 1363-1 and be suitable for testing horizontal ducts (see Figures 1 and 2) or
vertical shafts (see Figures 3 and 4).
4.3 Loading equipment
Continuous stranded steel cables and/or the installations used in practice are used to apply load to the
service duct or shaft to represent service loading.
4.4 Gas extraction equipment (optional)
If for safety reasons a laboratory requires to extract gases away from the open end of the duct or shaft,
this shall not influence the test conditions.
7
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SIST EN 1366-5:2021
EN 1366-5:2021 (E)
5 Test conditions
5.1 Furnace
The heating and pressure conditions and the furnace atmosphere shall conform to those given in
EN 1363-1.
5.2 Loading
Horizontal service ducts shall be loaded when supporting service installations. In this case, the weight of
the load shall be representative of that used in practice.
Vertical service shafts shall not be loaded except in the two following situations:
— when supporting service installations. In this case, the weight of the load shall be representative of
that used in practice;
— when the service installation shaft is not supported on each floor or when the height between two
supports is greater than 5 m. In this case a weight load representative for the additional shaft weight
shall be added to the shaft top.
6 Test specimen
6.1 Size
6.1.1 General
Any cross section of duct or shaft may be tested as required by the sponsor.
6.1.2 Length
The minimum lengths of the parts of the test specimen inside and outside the furnace shall be as given in
Table 1.
Table 1 — Straight length of test specimen
Orientation Length
m
Inside furnace Outside furnace
fire outside fire inside fire outside fire inside
Horizontal duct ≥ 4,0 0,25 ± 0,05 2,0 ± 0,05 2,5 ± 0,05
a ≥ 2,0 0,25 ± 0,05 2,0 ± 0,05 2,0 ± 0,05
Vertical shaft
a
See also 5.2.
6.1.3 Cross-section
The service ducts and shafts of the same construction type shall be tested with the maximum width and
height and the minimum thickness as intended in practice.
6.2 Number
One test specimen shall be tested for each type of orientation, exposure conditions and cross-section.
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SIST EN 1366-5:2021
EN 1366-5:2021 (E)
6.3 Design
6.3.1 General
The test shall be made on a test specimen, representative of the complete service duct or shaft assembly.
6.3.2 Duct and shaft arrangement
6.3.2.1 General
The exposure condition (fire inside or fire outside) shall be as specified by the sponsor. Ducts shall be
arranged as shown in Figures 1 or 2 and shafts shall be arranged as shown in Figures 3 or 4. Service ducts
or shafts with fire exposure from outside will have no openings in the furnace (except access panels and
service outlets). For service ducts or shafts exposed to an internal fire, the end of the service duct or shaft
facing into the furnace shall be left open. No service ducts or service shafts shall contain anything other
than the loading defined in 4.3.
If a service outlet is part of the system this service outlet shall be tested with a distance to the penetration
through the wall or floor not lower than intended in practice.
Where used in practice, each service duct or shaft shall incorporate one access opening as follows:
— fire outside: inside furnace at mid-span of two suspensions;
— fire inside: as shown in Figure 2 (the dimensions may be applied also to vertical shafts).
For the test, the access opening shall be at the bottom of the duct except the access opening is in practice
only on a side or on the top. In this case the access opening shall be installed as in practice. The width and
height of the access opening shall be representative of the maximum dimensions used in practice, the
thickness shall be the minimum dimension used in practice.
Vertical shafts shall be arranged as shown in Figures 3 or 4 and shall penetrate through the furnace roof
slab/supporting construction. The shafts shall be supported at the furnace roof level as they would be
supported in practice when penetrating a floor (as specified by the sponsor).
6.3.2.2 Joints in horizontal service ducts
For the fire test with fire from outside the test configuration shall include at least one joint inside and at
least one joint outside the furnace. There shall be at least one joint for every layer, both inside and outside
the furnace.
For the fire test with fire from inside these rules only apply for the part of the specimen outside the
furnace.
Outside the furnace, the joint in the outer layer of the fire protection material shall be recorded and it
may be not nearer than 100 mm to thermocouples T2 in accordance with 9.1. Inside the furnace, the joint
in the outer layer of fire protection material shall be located at approximately mid-span. The location of
joints in inner layers shall be as specified by the sponsor.
The distance between joints and suspension devices shall not be less than that used in practice. If the
minimum distance has not been specified, suspension devices shall be arranged so that the joint at mid-
span lies midway between them. Distances between the suspension devices shall be specified by the
sponsor and shall be representative of practice.
6.3.2.3 Joints in vertical service shafts
For the vertical shaft exposed to fire from inside, the test configuration shall include at least one joint
outside the furnace. There shall be at least one joint for every layer.
9
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SIST EN 1366-5:2021
EN 1366-5:2021 (E)
For the vertical shaft exposed to fire from outside, the test arrangement shall include at least one joint
inside and one joint outside the furnace. There shall be at least one joint both inside and outside the
furnace in every layer of fire protection material.
For fire from inside and for fire from outside: outside the furnace, the joint in the outer layer of the fire
protection material shall be recorded and it may be not nearer than 100 mm to thermocouples T2 in
accordance with 9.1. For fire from outside inside the furnace the joint in the outer layer of fire protection
material shall be located at approximately mid-span. The location of joints in inner layers shall be as
specified by the sponsor.
For multi-layer systems, the location of joints on the inner layer shall be specified by the sponsor.
7 Installation of test specimen
7.1 General
The sealing between the supporting construction and the duct or the shaft shall be as intended in practice.
If the width of the gap around the duct or shaft at the furnace penetration point is not specified, a width
of 50 mm shall be used.
Where the duct or shaft passes through an opening in the furnace wall or roof, then the opening shall be
of sufficient dimensions to allow for the supporting construction to surround all faces of the duct or shaft
by at least 200 mm from the duct/shaft or the outer edge of any fire stopping.
The minimum size of a partition wall as supporting construction for a duct shall be width x height
1,20 m x 2,50 m. The partition wall shall be fixed in the furnace opening only on the top and the bottom
of the wall, but not on the sides.
Parts of the ducts or shafts within the furnace shall be exposed to fire from all sides over their whole
length. Where vertical shafts are not in practice to be fixed to each floor, then the mass of shafts above
shall be reproduced in the test. The simulated height and the mass represented during the test shall be
stated in the test report.
There shall be a clearance of at least 500 mm between the top of the horizontal duct and the ceiling, and
also at least 500 mm between the underside of the horizontal duct and the floor. Similarly, there shall be
a clearance of at least 500 mm between the sides of ducts or shafts and furnace walls. At the furnace wall
remote from the penetration point there may be no gap between the duct tested with fire from outside
and the furnace wall.
The test specimen shall be installed in a manner representative of its use and practice. For the test the
loading occurring in practice by cables, pipes and cable trays (if not included in the test specimen) shall
be taken into account by stranded steel cables as replacement.
Apply the loading equipment along the complete length of the bottom, inside face of each horizontal
service duct to represent a uniformly distributed load. The minimum load (f) shall be:
W
f = 20 ×
1000
where
f is the load in kilograms per metre (kg/m);
W is the width of service duct in millimetres (mm).
To ensure uniform loading, a minimum of three cables uniformly distributed across the width shall be
used. For ducts with a height lower or equal 100 mm the depth of the cables shall not exceed 50 % of the
height (a 30 mm diameter stranded steel cable has a mass of approximately 3,8 kg/m).
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SIST EN 1366-5:2021
EN 1366-5:2021 (E)
7.2 Standard supporting construction
Where the type of supporting construction to be used in p
...
SLOVENSKI STANDARD
oSIST prEN 1366-5:2019
01-april-2019
Preskusi požarne odpornosti servisnih inštalacij - 5. del: Servisni kanali in jaški
Fire resistance tests for service installations - Part 5: Service ducts and shafts
Feuerwiderstandsprüfungen für Installationen - Teil 5: Installationskanäle und -schächte
Ta slovenski standard je istoveten z: prEN 1366-5
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 1366-5:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 1366-5:2019
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oSIST prEN 1366-5:2019
DRAFT
EUROPEAN STANDARD
prEN 1366-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2019
ICS 13.220.50; 91.060.40 Will supersede EN 1366-5:2010
English Version
Fire resistance tests for service installations - Part 5:
Service ducts and shafts
Feuerwiderstandsprüfungen für Installationen - Teil 5:
Installationskanäle und -schächte
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1366-5:2019 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 . 6
4 Test equipment . 7
4.1 General . 7
4.2 Furnace . 7
4.3 Loading equipment . 7
4.4 Gas extraction equipment (optional). 7
5 Test conditions . 8
5.1 Furnace . 8
5.2 Loading. 8
6 Test specimen . 8
6.1 Size . 8
6.1.1 General . 8
6.1.2 Length . 8
6.2 Number . 8
6.3 Design . 9
6.3.1 General . 9
6.3.2 Duct and shaft arrangement. 9
7 Installation of test specimen . 10
7.1 General . 10
7.2 Standard supporting construction . 11
7.3 Non-standard supporting constructions . 11
8 Conditioning . 11
8.1 General . 11
8.2 Water based sealing materials . 11
9 Application of instrumentation . 11
9.1 Thermocouples . 11
9.1.1 Furnace thermocouples (plate thermometers) . 11
9.1.2 Thermocouple locations . 12
9.2 Pressure . 12
10 Test procedure . 13
10.1 General . 13
10.2 Test measurements and observations . 13
10.2.1 General . 13
10.2.2 Integrity . 13
10.2.3 Insulation (temperature of the surfaces outside the furnace – for both fire
exposure at the inside and exposure at the outside) . 13
10.2.4 Additional observations . 14
10.3 Termination of the test . 14
11 Performance criteria . 14
11.1 Integrity . 14
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11.2 Insulation . 14
11.2.1 Insulation criteria for service ducts and shafts with combustible and non-
combustible services . 14
12 Test report . 14
13 Field of direct application of test results . 15
13.1 Walls or floors through which the service ducts or shafts lead . 15
13.2 Sizes of ducts or shafts . 15
13.3 Shapes . 15
13.4 Admissible services . 15
13.5 Suspension devices for ducts. 15
13.5.1 Material and sizing . 15
13.5.2 Elongation . 16
13.6 Distances . 16
13.6.1 Distance to the supporting construction . 16
13.6.2 Distance of the first joint after the supporting construction . 16
13.6.3 Distance between service ducts or service shafts in practice . 16
13.7 Access panels . 16
13.8 Cable outlets . 16
Bibliography . 26
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European foreword
This document (prEN 1366-5:2019) 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 has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
This document will supersede EN 1366-5:2010.
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Introduction
The purpose of this test is to measure the ability of a service duct or shaft to resist the spread of fire from
one fire compartment to another with fire attack from inside or outside the duct or shaft. The test
specimens incorporate joints, cable outlets and access openings as intended in practice and are
suspended as they would be in practice. Test specimens of service ducts are not loaded as in practice, but
a standard load is included to represent a typical service load. Test specimens of service shafts are not
loaded as in practice, but a standard load is included to represent a typical service load.
CAUTION — The attention of all persons concerned with managing and carrying out this fire
resistance test is drawn to the fact that fire testing may be hazardous, and there is a possibility
that toxic and/or harmful smoke and gases may be involved during the test. Mechanical and
operational hazards may also arise during the construction of the test elements or structures,
their testing and disposal of test residues.
An assessment of all potential hazards and risks to health should be made, and safety precautions
should be identified and provided. Written safety instructions should be issued. Appropriate
training should be given to relevant personnel. Laboratory personnel should ensure that they
follow written safety instructions at all times.
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1 Scope
This document specifies a method for determining the fire resistance of horizontal service ducts and
vertical service shafts, which pass through walls or floors and enclose pipes and cables. The test scenario
examines the behaviour of ducts and shafts exposed to fire either from outside or inside the system. This
document is intended to be read in conjunction with EN 1363-1:2012.
This document does not examine the risk of fire spread as a result of thermal conduction along the piping
or cabling installed in service ducts or shafts or thermal conduction through the media these pipes carry.
It does not cover the risk of damage produced by thermal elongation or shortening of tubes and cables as
a result of fire or damaged pipe suspensions. This document does not give guidance on how to test one,
two or three sided service ducts or shafts.
NOTE Guidance on testing service ducts and shafts of less than four sides will be covered in the extended field
of application rules being developed by CEN/TC 127.
This test applies to systems with boards and also for such systems with continuous covering with
intumescent materials on the boards. It cannot be applied to systems where intumescent material is only
applied in the range of the penetration.
This test is unsuitable for evaluating service ducts or shafts with internal barriers at walls and floors.
This test is unsuitable for evaluating fire protective systems for cable systems and associated components
with maintenance of integrity in case of fire. This is covered by EN 1366-11: Fire protective systems for
cable systems and associated components.
Whilst the walls of service ducts or shafts tested to this method provides specified levels of integrity or
insulation, testing according this document does not replace the testing of the functional endurance of
small electrical cables which is covered in EN 50200.
Fire resistance testing of ducts for air distribution systems is covered in EN 1366-1.
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 1363-1:2012, Fire resistance tests — Part 1: General requirements
EN ISO 898-1:2013, Mechanical properties of fasteners made of carbon steel and alloy steel — Part 1: Bolts,
screws and studs with specified property classes — Coarse thread and fine pitch thread (ISO 898-1:2013)
EN ISO 13943, Fire safety — Vocabulary (ISO 13943)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 1363-1:2012, EN ISO 13943 and
the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
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3.1
service duct
mainly horizontal duct enclosing combustible or non-combustible services, such as pipes or cables
3.2
service shaft
mainly vertical shaft enclosing combustible or non-combustible services, such as pipes or cables
3.3
shutter of access opening
openable door or panel allowing for access to the services within the duct or shaft
3.4
supporting construction
wall, partition or floor which the duct or the shaft passes through in the test
3.5
boards
rigid product of cross section in which the thickness is uniform and substantially smaller than the other
dimensions of the installations
4 Test equipment
4.1 General
In addition to the test equipment specified in EN 1363-1:2012, the following are required.
4.2 Furnace
The furnace shall be capable of subjecting service ducts and shafts to the standard heating and pressure
conditions specified in EN 1363-1:2012 and shall be suitable for testing horizontal ducts (see Figure 1
and Figure 2) or vertical shafts (see Figure 3 and Figure 4).
4.3 Loading equipment
Continuous stranded steel cables and/or the installations used in practice are used to apply load to the
bottom internal face of the service duct or shaft to represent service loading.
4.4 Gas extraction equipment (optional)
If for safety reasons, a laboratory requires to extract gases away from the open end of the duct or shaft,
this shall not influence the test conditions.
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5 Test conditions
5.1 Furnace
The heating and pressure conditions and the furnace atmosphere shall conform to those given in
EN 1363-1:2012.
5.2 Loading
Horizontal service ducts shall be loaded when supporting service installations. In this case, the weight of
the load shall be representative of that used in practice.
Vertical service shafts shall not be loaded except in the two following situations:
— when supporting service installations. In this case, the weight of the load shall be representative of
that used in practice;
— when the service installation shaft is not supported on each floor or when the height between two
supports is greater than 5 m. In this case a weight load representative for the additional shaft weight
shall be added to the shaft top.
6 Test specimen
6.1 Size
6.1.1 General
Any cross section of duct or shaft may be tested as required by the sponsor.
6.1.2 Length
The minimum lengths of the parts of the test specimen inside and outside the furnace shall be as given in
Table 1.
Table 1 — Straight length of test specimen
Length
m
Orientation Inside furnace Outside furnace
fire outside fire inside fire outside fire inside
Horizontal duct ≥ 4,0 0,25 ± 0,05 2,0 ± 0,05 2,0 ± 0,05
a
Vertical shaft ≥ 2,0 0,25 ± 0,05 2,0 ± 0,05 2,0 ± 0,05
a
See also 5.2.
The service ducts and shafts of the same construction type shall be tested with the maximum width and
height and the minimum thickness as intended in practice.
6.2 Number
One test specimen shall be tested for each type of orientation, exposure conditions and cross-section.
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6.3 Design
6.3.1 General
The test shall be made on a test specimen, representative of the complete service duct or shaft assembly,
on which information is required.
6.3.2 Duct and shaft arrangement
6.3.2.1 General
The exposure condition (fire inside or fire outside) shall be as specified by the sponsor. Ducts shall
therefore be arranged as shown in Figure 1 or Figure 2 and shafts shall be arranged as shown in Figure 3
or Figure 4. Service ducts or shafts with fire exposure from outside will have no openings in the furnace
(except access panels). For service ducts or shafts exposed to an internal fire, the end of the service duct
or shaft facing into the furnace shall be left open. No service ducts or service shafts shall contain anything
other than the loading defined in 4.3.
If a cable outlet is part of the system, this cable outlet shall be tested with a distance to the penetration
through the wall or floor not lower than intended in practice.
Where used in practice, each service duct or shaft shall incorporate one access opening as follows:
— fire outside: inside furnace at mid-span of two suspensions;
— fire inside: as shown in Figure 2 (the dimensions may be applied also to vertical shafts).
For the test, the access opening shall be at the bottom of the duct except the access opening is in practice
only on a side or on the top. In this case, the access opening shall be installed as in practice. The width
and height of the access opening shall be representative of the maximum dimensions used in practice, the
thickness shall be the minimum dimension used in practice.
Vertical shafts shall be arranged as shown in Figure 3 or Figure 4 and shall penetrate through the furnace
roof slab/supporting construction. The shafts shall be supported at the furnace roof level as they would
be supported in practice when penetrating a floor (as specified by the sponsor).
6.3.2.2 Joints in horizontal service ducts
For the fire test with fire from outside, the test configuration shall include at least one joint inside and at
least one joint outside the furnace. There shall be at least one joint for every layer, both inside and outside
the furnace.
For the fire test with fire from inside, these rules only apply for the part of the specimen outside the
furnace.
Outside the furnace, the joint in the outer layer of the fire protection material shall be recorded and it
may not be within 100 mm of thermocouples T2 in accordance with 9.1. Inside the furnace, the joint in
the outer layer of fire protection material shall be located at approximately mid-span. The location of
joints in inner layers shall be as specified by the sponsor.
The distance between joints and suspension devices shall not be less than that used in practice. If the
minimum distance has not been specified, suspension devices shall be arranged so that the joint at mid-
span lies midway between them. Distances between the suspension devices shall be specified by the
sponsor and shall be representative of practice.
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6.3.2.3 Joints in vertical service shafts
For the vertical shaft exposed to fire from inside, the test configuration shall include at least one joint
outside the furnace. There shall be at least one joint for every layer.
For the vertical shaft exposed to fire from outside, the test arrangement shall include at least one joint
inside and one joint outside the furnace. There shall be at least one joint both inside and outside the
furnace in every layer of fire protection material.
For fire from inside and for fire from outside: outside the furnace, the joint in the outer layer of the fire
protection material shall be recorded, and it may not be within 100 mm of thermocouples T2 in
accordance with 9.1. For fire from outside inside the furnace the joint in the outer layer of fire protection
material shall be located at approximately mid-span. The location of joints in inner layers shall be as
specified by the sponsor.
For multi-layer systems, the location of joints on the inner layer shall be specified by the sponsor.
7 Installation of test specimen
7.1 General
The sealing between the supporting construction and the duct or the shaft shall be as intended in practice.
If the width of the gap around the duct or shaft at the furnace penetration point is not specified, a width
of 50 mm shall be used.
Where the duct or shaft passes through an opening in the furnace wall or roof, then the opening shall be
of sufficient dimensions to allow for the supporting construction to surround all faces of the duct or shaft
by at least 200 mm from the duct/shaft or the outer edge of any fire stopping.
The minimum size of a partition wall as supporting construction for a duct shall be width x height
1,20 m x 2,50 m. The partition wall shall be fixed in the furnace opening only on the top and the bottom
of the wall but not on the sides.
Parts of the ducts or shafts within the furnace shall be exposed to fire from all sides over their whole
length. Where vertical shafts are not in practice to be fixed to each floor, then the mass of shafts above
shall be reproduced in the test. The simulated height and the mass represented during the test shall be
stated in the test report.
There shall be a clearance of at least 500 mm between the top of the horizontal duct and the ceiling, and
also at least 500 mm between the underside of the horizontal duct and the floor. Similarly, there shall be
a clearance of at least 500 mm between the sides of ducts or shafts and furnace walls. At the furnace wall
remote from the penetration point there may be no gap between the duct tested with fire from outside
and the furnace wall.
The test specimen shall be installed in a manner representative of its use and practice. For the test the
loading occurring in practice by cables, pipes and cable trays (if not included in the test specimen) shall
be taken into account by stranded steel cables as replacement.
Apply the loading equipment along the complete length of the bottom, inside face of each horizontal
service duct to represent a uniformly distributed load. The minimum load (f) shall be:
W
f 20×
1000
where
f is the load in kilograms per metre (kg/m);
W is the width of service duct in millimetres (mm).
=
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To ensure uniform loading, a minimum of three cables uniformly distributed across the width shall be
used, but the depth of the cables shall not exceed 50 mm above the bottom inside face of the duct (a
30 mm diameter stranded steel cable has a mass of approximately 3,8 kg/m).
7.2 Standard supporting construction
When the type of supporting construction to be used in practice is not known, one of the standard
supporting constructions as described in detail in EN 1363-1:2012 7.2 shall be used.
The standard floor construction as described in detail in EN 1363-1:2012 7.2 does not cover flexible floor
constructions (e.g. containing timber joists). An appropriate flexible standard supporting construction
floors should be developed to cover these service shafts. The design should be adapted also for vertical
ventilation ducts (see EN 1366-1).
The choice for the fire rating of the standard supporting construction is to be made by the test sponsor.
It is recommended to use a fire rating which is approximately the same at the product to be tested.
7.3 Non-standard supporting constructions
When the test specimen is intended to be used in a form of construction not covered by the standard
supporting constructions, it shall be tested in that supporting construction.
8 Conditioning
8.1 General
Conditioning of the test construction shall be in accordance with EN 1363-1:2012.
8.2 Water based sealing materials
Water based sealing materials (like mortar or gypsum) used to seal the gap between the supporting
construction and the specimen where the gap is ≤ 10 mm wide shall be conditioned for at least 1 day
before fire testing. Water based sealing materials used to seal the gap between the supporting
construction and the specimen where the gap is 10 mm < x ≤ 50 mm wide shall be conditioned for at least
7 days before fire testing.
If a gap is > 50 mm wide and it is filled with non-water based sealing materials but on both sides covered
by an outer layer consisting of water based materials ≤ 10 mm, it shall be conditioned for at least 7 days.
Water based sealing materials used to seal the gap between the supporting construction and the
specimen where the gap is > 50 mm wide shall be conditioned for at least 28 days before fire testing.
9 Application of instrumentation
9.1 Thermocouples
9.1.1 Furnace thermocouples (plate thermometers)
Plate thermometers shall be provided in accordance with EN 1363-1:2012 and shall be positioned as
shown in Figure 9. On service ducts or service shafts with fire from outside 3 pairs of plate thermometers
shall be positioned in equal distances on the sides of the specimen.
On service ducts or service shafts with fire from inside on all four sides of the specimen plate
thermocouples shall be positioned directly on the specimen edge as it can be seen in Figure 9.
The distances of the plate thermocouples to the specimen’s surfaces shall be (150 ± 50) mm.
For all ducts, the plate thermometers shall be oriented so that side “A” (see Figure 1 in EN 1363-1:2012)
faces the walls of the furnace opposite the ducts being eva
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