prEN 15882-2

Extended application of results from fire resistance tests for service installations - Part 2: Fire dampers

This document provides guidance and rules to notified bodies (for fire dampers) allowing them to produce/validate an extended field of application report for fire dampers. This document identifies the parameters that affect the fire resistance of dampers. It also identifies the factors that need to be considered when deciding whether, or by how much, the parameter can be extended when contemplating the fire resistance performance of an untested, or untestable variation in the construction.
This document explains the principles behind how a conclusion on the influence of specific parameters/constructional details relating to the relevant criteria (E, I, S) can be achieved.
This document does not cover dampers used for smoke control.
It is the intention that the application of this document makes it possible to identify which specifications to test to maximize the field of application. Some information on test programmes is given for guidance purposes.

Erweiterter Anwendungsbereich der Ergebnisse aus Feuerwiderstandsprüfungen für Installationen - Teil 2: Brandschutzklappen

Dieses Dokument legt eine Anleitung und Regeln für notifizierte Stellen (für Brandschutzklappen) in Bezug auf die Erstellung/Überprüfung von Berichten zum erweiterten Anwendungsbereich für Brandschutzklappen fest. Dieses Dokument benennt die Parameter, die die Feuerwiderstandsfähigkeit von Brandschutzklappen beeinflussen. Sie benennt auch die Faktoren, die bei der Entscheidung zu berücksichtigen sind, ob oder bis zu welchem Ausmaß ein Parameter bei der Betrachtung der Feuerwiderstandsfähigkeit einer ungeprüften oder unprüfbaren Abweichung einer Konstruktion erweitert werden kann.
Dieses Dokument legt die Grundsätze dar, die eine Schlussfolgerung über den Einfluss von speziellen Parametern/Konstruktionsdetails, welche die entsprechenden Kriterien (E, I, S) betreffen, ermöglichen.
Dieses Dokument gilt nicht für Brandschutzklappen, die zur Entrauchung verwendet werden.
Das Ziel besteht darin, dass durch die Anwendung dieses Dokuments bestimmt werden kann, welche Spezifikationen zur Maximierung des Anwendungsbereiches geprüft werden müssen. Einige Informationen über Prüfprogramme sind zur Anleitung aufgeführt.

Application étendue des résultats des essais de résistance au feu des installations de service - Partie 2: Clapets résistant au feu

Le présent document fournit des recommandations et des règles aux organismes notifiés (pour les clapets résistant au feu) leur permettant d'élaborer/de valider un rapport de domaine d'application étendue pour ces clapets. Le présent document identifie les paramètres qui ont une incidence sur la résistance au feu des clapets. Il identifie également les facteurs devant être pris en considération lorsqu'il s'agit de décider si, ou dans quelle mesure, un paramètre peut être étendu, en examinant la résistance au feu d'une variation non soumise à essai ou ne pouvant pas être soumise à essai dans la construction.
Le présent document explique les principes permettant d'arriver à une conclusion concernant l'influence de paramètres/détails de construction spécifiques pour les critères pertinents (E, I, S).
Le présent document ne couvre pas les volets de désenfumage.
Il est prévu que l'application du présent document permette d'identifier quelles spécifications contrôler pour optimiser le domaine d'application. Certaines informations relatives aux programmes d'essais sont fournies à titre de recommandations.

Razširjena uporaba rezultatov preskusov požarne odpornosti servisnih inštalacij - 2. del: Požarne lopute

General Information

• Status: Not Published
• ICS: 13.220.99 - Other standards related to protection against fire
• Technical Committee: CEN/TC 127 - Fire safety in buildings
• Drafting Committee: CEN/TC 127/WG 2 - Services
• Current Stage: 4599 - Dispatch of FV draft to CMC - Finalization for Vote
• Due Date: 09-Feb-2022
• Completion Date: 09-Feb-2022
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Mandate: M/117 - Horizontal complement to the mandates to CEN/CENELEC concerning the execution of standardization work for the valuation of construction products and elements in respect of their resistance to fire
• Ref Project: oSIST prEN 15882-2:2021 - Extended application of results from fire resistance tests for service installations - Part 2: Fire dampers

RELATIONS

• Revised: EN 15882-2:2015 - Extended application of results from fire resistance tests for service installations - Part 2: Fire dampers
• Effective Date: 26-Apr-2017

Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN 15882-2:2021
01-maj-2021

Razširjena uporaba rezultatov preskusov požarne odpornosti servisnih inštalacij -

2. del: Požarne lopute

Extended application of results from fire resistance tests for service installations - Part 2:

Fire dampers
Erweiterter Anwendungsbereich der Ergebnisse aus Feuerwiderstandsprüfungen für
Installationen - Teil 2: Brandschutzklappen

Application étendue des résultats des essais de résistance au feu des installations de

service - Partie 2: Clapets résistant au feu
Ta slovenski standard je istoveten z: prEN 15882-2
ICS:
13.220.50 Požarna odpornost Fire-resistance of building
gradbenih materialov in materials and elements
elementov
oSIST prEN 15882-2:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 15882-2:2021
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oSIST prEN 15882-2:2021
DRAFT
EUROPEAN STANDARD
prEN 15882-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2021
ICS 13.220.99 Will supersede EN 15882-2:2015
English Version
Extended application of results from fire resistance tests
for service installations - Part 2: Fire dampers

Application étendue des résultats des essais de Erweiterter Anwendungsbereich der Ergebnisse aus

résistance au feu des installations de service - Partie 2: Feuerwiderstandsprüfungen für Installationen - Teil 2:

Clapets résistant au feu Brandschutzklappen

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 15882-2:2021 E

worldwide for CEN national Members.
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oSIST prEN 15882-2:2021
prEN 15882-2:2021 (E)
Contents Page

European foreword ............................................................................................................................................ 3

Introduction .......................................................................................................................................................... 4

1 Scope .......................................................................................................................................................... 5

2 Normative references .......................................................................................................................... 5

3 Terms and definitions ......................................................................................................................... 5

4 Test requirements for assessment of design changes ............................................................. 6

4.1 General...................................................................................................................................................... 6

4.2 Manufacturing changes ....................................................................................................................... 6

4.2.1 Pre-test ..................................................................................................................................................... 6

4.2.2 Fire test ..................................................................................................................................................... 6

4.2.3 Extended field of application ............................................................................................................ 6

4.3 Actuators, remote triggering devices, actuating mechanisms, fusible links and sensing

elements ................................................................................................................................................... 7

4.3.1 Actuators .................................................................................................................................................. 7

4.3.2 Actuators with an associated thermal element device that controls the action of the

actuator to close the fire damper in the event of fire .............................................................. 8

4.3.3 Remote triggering device (e.g. magnet) ........................................................................................ 9

4.3.4 Actuating mechanism ........................................................................................................................ 10

5 Determination of worst case ........................................................................................................... 12

6 Conditions and application rules .................................................................................................. 12

6.1 Change of fixing damper to supporting construction ............................................................ 12

6.2 Multiple damper assemblies ........................................................................................................... 12

6.2.1 E Classification only ........................................................................................................................... 12

6.2.2 EI, E-S, EI-S Classifications ................................................................................................................ 14

6.2.3 Field of application ............................................................................................................................. 15

6.3 Alternative penetration seals ......................................................................................................... 15

7 Influence of parameters and factors on fire damper performance .................................. 15

8 Critical parameters and factors ..................................................................................................... 16

8.1 General.................................................................................................................................................... 16

8.2 Common operational parameters and factors ......................................................................... 16

8.3 Constructional parameters ............................................................................................................. 16

8.4 Parameters of components of damper ........................................................................................ 17

8.5 Installing parameters ........................................................................................................................ 18

9 Methodology ......................................................................................................................................... 19

10 Extended field of application report ............................................................................................ 38

Bibliography ....................................................................................................................................................... 41

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oSIST prEN 15882-2:2021
prEN 15882-2:2021(E)
European foreword

This document (prEN 15882-2:2021) 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.

EN 15882, Extended application of results from fire resistance tests for service installations, consists of the

following parts:
— Part 1: Ducts
— Part 2: Fire dampers
— Part 3: Penetration seals
— Part 4: Linear joint seals

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association.
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oSIST prEN 15882-2:2021
prEN 15882-2:2021 (E)
Introduction

It should be noted that fire resisting dampers are special products that are exposed to different conditions

than other elements of construction; in particular they are subjected to significantly different pressure

regimes. Integrity is also evaluated through leakage measurements. Consequently, this document may

adopt a different approach to other extended field of application standards, with more emphasis on

testing.
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oSIST prEN 15882-2:2021
prEN 15882-2:2021(E)
1 Scope

This document provides guidance and rules to notified bodies (for fire dampers) allowing them to

produce/validate an extended field of application report for fire dampers. This document identifies the

parameters that affect the fire resistance of dampers. It also identifies the factors that need to be

considered when deciding whether, or by how much, the parameter can be extended when contemplating

the fire resistance performance of an untested, or untestable variation in the construction.

This document explains the principles behind how a conclusion on the influence of specific

parameters/constructional details relating to the relevant criteria (E, I, S) can be achieved.

This document does not cover dampers used for smoke control.

It is the intention that the application of this document makes it possible to identify which specifications

to test to maximize the field of application. Some information on test programmes is given for guidance

purposes.
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, Fire resistance tests — Part 1: General requirements

EN 1366-1:2014+A1:2020, Fire resistance tests for service installations — Part 1: Ventilation ducts

EN 1366-2, Fire resistance tests for service installations — Part 2: Fire dampers

EN 13501-3, 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

resisting ducts and fire dampers

EN 15882-1, Extended application of results from fire resistance tests for service installations — Part 1:

Ducts
EN 15650, Ventilation for buildings — Fire dampers

ISO 21925-1, Fire resistance tests — Fire dampers for air distribution systems — Part 1: Mechanical

dampers
3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN 1363-1, EN 1366-2, EN 15650

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
multiple assembly
multiple damper assembly
assembly of individual damper units to form larger units
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oSIST prEN 15882-2:2021
prEN 15882-2:2021 (E)
3.2
horizontal
orientation/position of the damper mounted horizontally
EXAMPLE When installed in the plane of a floor or a ceiling.
3.3
vertical
orientation/position of the damper mounted vertically
EXAMPLE When installed in the plane of a wall.
3.4
supporting construction

construction used as part of the test assembly to support the test specimen and to fill in the furnace

aperture
3.5
standard supporting construction

supporting construction that has known fire behaviour and for which a direct field of application has been

established
4 Test requirements for assessment of design changes
4.1 General

Many manufacturers will want to introduce manufacturing changes to make use of differing production

techniques, whilst essentially keeping a product the same. In addition, they may wish to change actuators

and activating mechanisms, sometimes across a range of products.

Such a test shall not be used to develop the application to other supporting constructions and installation

methods in those supporting constructions.
4.2 Manufacturing changes
4.2.1 Pre-test

Before any fire testing is undertaken the relevant cycle tests and leakage tests at ambient temperatures

shall be undertaken to prove the durability of the proposed change.
4.2.2 Fire test

Manufacturing changes shall be proven by fire testing the fire damper in previously tested supporting

construction and using the same installation method. The supporting construction shall be the lightest

that the fire damper was previously tested in (e.g. dry wall versus solid masonry etc.). The fire damper

shall be presented to the test from the direction of the worst result obtained in previous testing or, if this

is not clear from previous test evidence, then with the actuator inside the furnace.

4.2.3 Extended field of application

The fire damper shall have the ability to be used for all other existing classifications for the same

supporting construction using different installation methods and also all for all its existing classifications

in heavier supporting constructions with their different installation methods.
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prEN 15882-2:2021(E)

4.3 Actuators, remote triggering devices, actuating mechanisms, fusible links and

sensing elements
4.3.1 Actuators
4.3.1.1 General

This only applies to new ranges of actuator provided by the same actuator manufacturer.

If the fire damper is a new product, previously untested, this section does not apply, and the fire damper

shall be tested fitted with the actuator associated with EN 1366-2 from both sides.

If the fire damper has not been previously tested from both sides using an actuator, then this section does

not apply until the fire damper has been tested with the actuator associated with EN 1366-2 from both

sides.

When either of the above have been successfully tested the following may be applied.

All the following shall be undertaken in the order shown.
4.3.1.2 Actuator ambient cycle test under load

At least one sample of the proposed new actuator shall be subjected to an ambient cycle test under load

in both directions of rotation by the actuator manufacturer. The actuator will not be connected to a fire

damper for this test. The load applied shall be at least the nominal declared load in accordance with the

actuator specification and shall be set by the actuator manufacturer. The minimum number of cycles

performed shall correspond to the expected application. This shall be 10 200 for general purpose fire

damper actuators and 20 000 for modulating fire dampers. If different motive powers are proposed, then

an actuator with each motive power level shall be subjected to the cycle tests.

The ambient spring return running time shall be the same or shorter than the actuator being replaced.

The ambient spring return torque shall be the same or greater than the actuator being replaced.

The ambient angle of rotation shall be the same as the actuator being replaced.

The calorific value of any combustible material in the actuator construction shall be the same or less than

the actuator being replaced.

If the actuator range (from the same manufacturer) of the actuator being replaced does not have this data

available for comparison it shall be tested in this way at the same time as the proposed new actuator.

4.3.1.3 Actuator fire test

At least one sample (different from that in 4.3.1.2) of the proposed new actuator shall be subjected to a

fire test under load by the actuator manufacturer. The load to be used shall be set by the actuator

manufacturer and shall be at least the nominal declared load corresponding to 4.3.1.2.

The actuator shall perform 50 cycles at ambient prior to the fire test under nominal declared load

specified by actuators manufacturer.

The actuator shall be mounted on the inside of the furnace with the loading arranged on the outside of

the furnace.

The actuator shall be subjected to a fire test following the general fire test parameters of EN 1366-2.

The actuator shall be powered to the ON (open) position before the test is started and released to the OFF

(closed) position by removing the supply power when furnace reaches 50°C. The actuator shall reach the

OFF (closed) position in less than two minutes.

The actuator shall maintain its position for the same time or longer than the actuator being replaced.

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oSIST prEN 15882-2:2021
prEN 15882-2:2021 (E)

If the actuator range (from the same manufacturer) of the actuator being replaced does not have this data

available for comparison it shall be tested in this way at the same time as the proposed new actuator.

4.3.1.4 Confirmatory acceptance fire test

At least one sample (different to those in 4.3.1.2 and 4.3.1.3) of the proposed new actuator shall be

subjected to a fire test in accordance with EN 1366-2 on a previously tested fire damper obtained from

any fire damper manufacturer, installed in the lightest wall construction (generally lightweight metal

stud partition with one board on each side as the worst case).

In cases of insulated fire dampers (with an EI classification), the actuator shall be positioned inside the

furnace. With only E classification dampers, two units shall be tested; one mounted on an E classification

fire damper inside the furnace and one mounted on an E classification fire damper outside the furnace.

Successful completion of a fire test on E classification fire dampers will allow use on EI classification fire

dampers.

To avoid confusion, even if the fire damper has the actuator mounted on the centre line, the product shall

be tested from both sides in the case of E or EI classification dampers.

In each case the fire damper shall perform at least as well, with regard to its classification times, as it did

in the same test previously. Tests performed on a vertically mounted fire damper will be applicable to

horizontally mounted fire dampers and vice versa.
4.3.1.5 Field of application

Provided all the above are satisfactorily fulfilled in order, the actuator may be supplied to and fitted by

any fire damper manufacturer who has previously fitted a similar actuator from the same actuator

manufacturer on tested families and series of fire damper. This shall apply to all tested installations and

applications.

4.3.2 Actuators with an associated thermal element device that controls the action of the

actuator to close the fire damper in the event of fire
4.3.2.1 General

This only applies to new ranges of actuator provided by the same actuator manufacturer

If the fire damper is a new product, not previously tested, this section does not apply, and the fire damper

shall be tested fitted with the associated actuator in accordance with EN 1366-2 from both sides.

If the fire damper has not been previously tested from both sides using an actuator with associated

thermal element device then this section does not apply until the fire damper has been tested with the

associated actuator in accordance with EN 1366-2 from both sides.

When either of the above have been successfully tested, the following may be applied.

All the following shall be undertaken in the order shown.
4.3.2.2 Actuator ambient cycle test under load
As in 4.3.1.2.
4.3.2.3 Actuator fire test
As in 4.3.1.2.
4.3.2.4 Confirmation of the thermal element device

The thermal element device shall satisfactorily pass the requirements of ISO 21925-1 (previously in

ISO 10294-4).
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oSIST prEN 15882-2:2021
prEN 15882-2:2021(E)
4.3.2.5 Confirmatory acceptance fire test
As in 4.3.1.3.

If only the design or type of a thermal element device has been changed, conformity with 4.3.1.2 shall be

fulfilled without additional fire testing.
4.3.2.6 Field of application

Provided all the above are satisfactorily fulfilled in order, the actuator with the thermal element device

may be supplied to and fitted by any fire damper manufacturer who has previously fitted a similar

actuator with a thermal element device from the same actuator manufacturer on tested families and

series of fire damper. This shall apply to all tested installations and applications.

4.3.3 Remote triggering device (e.g. magnet)
4.3.3.1 General

If the fire damper is a new product, not previously tested, this section does not apply, and the fire damper

shall be tested fitted with an associated remote triggering device in accordance with EN 1366-2, from

both sides.

If the fire damper has not been previously tested from both sides using an associated remote triggering

device, then this section does not apply until the fire damper has been tested in accordance with EN 1366-

2 from both sides.

When either of the above have been successfully tested the following may be applied.

All the following shall be undertaken in the order shown.
4.3.3.2 Damper ambient cycle test

At least one sample of the fire damper with the proposed new remote triggering device shall be subjected

to an ambient cycle test under load. The cycles performed shall be at minimum corresponding to the

expected application. The minimum number of cycles performed shall correspond to the expected

application: This shall be at least 300 cycles (10 200 or 20 000 may be selected). If different motive

powers are proposed, then a remote triggering mechanism with each motive power level shall be

subjected to the cycle tests.
4.3.3.3 Confirmatory acceptance fire test

At least two samples (different from 4.3.1.2) of the proposed new remote triggering device shall be

subjected to a fire test in accordance with EN 1366-2 on a previously tested fire damper obtained from

any fire damper manufacturer in the lightest wall construction (generally lightweight metal stud partition

with one board on each side / worst case).

Two units shall be tested; one with new remote triggering device mounted inside the furnace and one

with the new remote triggering device mounted outside the furnace.

To avoid confusion, even if the fire damper has the new remote triggering device mounted on the centre

line, the product shall still be tested from both sides.

In each case the fire damper shall perform at least as well as it did in the same test previously. Tests

performed on a vertically mounted fire damper will be applicable to horizontally mounted fire dampers

and vice versa.
4.3.3.4 Field of application

Provided all the above are satisfactorily fulfilled in order, the new remote triggering device may be

supplied to and fitted by any fire damper manufacturer who has previously fitted a similar remote

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oSIST prEN 15882-2:2021
prEN 15882-2:2021 (E)

triggering device from the same manufacturer on tested families and series of fire damper. This shall

apply to all tested installations and applications.
4.3.4 Actuating mechanism
4.3.4.1 General

The actuating mechanism is the connection mechanism between any actuator or remote release

mechanism and the damper blade. Modification may be made for different reasons (e.g. to simplify the

construction or change mechanical advantage).

If the fire damper is a new product, previously untested, this section does not apply, and the fire damper

shall be tested in accordance with EN 1366-2 from both sides.

If the fire damper has not been previously tested from both sides, then this section does not apply until

the fire damper has been tested in accordance with EN 1366-2 from both sides.

When either of the above have been successfully tested the following may be applied.

All the following shall be undertaken in the order shown.
4.3.4.2 Damper ambient cycle test

At least one sample of the fire damper with the proposed new actuating mechanism shall be subjected to

an ambient cycle test.

The minimum number of cycles performed shall correspond to the expected application. This shall be

300 for remote release only, 10 200 for general purpose fire damper actuators and 20 000 for modulating

fire dampers.
The mechanical advantage shall not be reduced.

If the previous actuating mechanism to be replaced does not have this data available for comparison it

shall be tested in this way at the same time as the proposed new actuator.
4.3.4.3 Confirmatory acceptance fire test

At least two samples (different to those used above) of the fire damper with the proposed new actuating

mechanism shall be subjected to a fire test in accordance with EN 1366-2, on a previously tested fire

damper in the lightest wall construction (generally lightweight metal stud partition with one board on

each side).

The actuator shall be mounted such that if the fastenings or pins preventing rotation fail, the weight of

the damper shall act to try and open the blades by putting an opening moment on the drive spindle to the

actuating mechanism.

Two units shall be tested, one with the actuating mechanism mounted inside the furnace and one with

the actuating mechanism mounted outside the furnace.

To avoid confusion, if the fire damper has the actuating mechanism mounted on the centre line, the

product shall still be tested from both sides.

In each case the fire damper shall perform at least as well as it did in the same test previously. Tests

performed on a vertically mounted fire damper will be applicable to horizontally mounted fire dampers

and vice versa.
4.3.4.4 Field of application

Provided all the above are satisfactorily fulfilled in order, the actuating mechanism may be fitted to any

smaller fire damper with the same or lower nominal declared torque on all the manufacturers tested

families and series of fire damper. This shall apply to all tested installations and applications.

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prEN 15882-2:2021(E)
4.3.4.5 Fusible links and elements (not associated with the actuator supplier)

If the fire damper is a new product, previously untested, this section does not apply, and the fire damper

shall be tested in accordance with EN 1366-2 from both sides.

If the fire damper has not been previously tested from both sides, then this section does not apply until

the fire damper has been tested with the associated fusible link and element in accordance with

EN 1366-2 from both sides.

When either of the above have been successfully tested, the following may be applied.

All the following shall be undertaken in the order shown.
4.3.4.6 Damper ambient cycle test

At least one sample of the fire damper with the proposed new fusible link or sensing element shall be

subject to an ambient cycle test. The cycles performed shall correspond to the expected application at a

minimum.

The test method shall follow the cycling tests for the expected application, as shown in EN 15650.

4.3.4.7 Confirmation of the thermal element device

The thermal element device shall satisfactorily pass the requirements of ISO 21925-1 (previously in

ISO 10294-4).
4.3.4.8 Confirmatory acceptance fire test

At least two samples (different from those in 4.3.1.2 and 4.3.1.3) of the fire damper with the proposed

new fusible link or sensing element shall be subjected to a fire test, in accordance with EN 1366-2, on a

previously tested fire damper in the lightest wall construction (generally lightweight metal stud partition

with one board on each side as the worst case).

Two units shall be tested, one with the fusible link or sensing element mounted inside the furnace and

one with the fusible link or sensing element mounted outside the furnace.

To avoid confusion, even if the fire damper has the fusible link or sensing element mounted on the centre

line, the product shall still be tested from both sides.

In each case the fire damper shall perform at least as well as it did in the same test previously. Tests

performed on a vertically mounted fire damper will be applicable to horizontally mounted fire dampers

and vice versa.
4.3.4.9 Field of application

Provided all the above are satisfactorily fulfilled in order, the fusible link or sensing element may be

supplied to and fitt
...