oSIST prEN 1366-2:2010
(Main)Fire resistance tests for service installations - Part 2: Fire dampers
Fire resistance tests for service installations - Part 2: Fire dampers
This part of EN 1366 specifies a method for determining the fire resistance of fire dampers installed in fire separating elements designed to withstand heat and the passage of smoke and gases at high temperature. The Standard is used in conjunction with prEN 1363-1. The method is primarily intended for tests of mechanical devices. It is not suitable for testing fire dampers in supended ceilings without modification.
Feuerwiderstandsprüfungen für Installationen - Teil 2: Brandschutzklappen
Dieser Teil von EN 1366 legt ein Verfahren für die Ermittlung der Feuerwiderstandsdauer von Brandschutz-klappen fest, die in feuerwiderstandsfähigen raumabschließenden Bauteilen eingebaut und dafür vorgesehen sind, dem Durchtritt von Rauch und Gasen bei hohen Temperaturen standzuhalten. Diese Norm gilt zusam¬men mit EN 1363-1.
Ohne Abänderung ist diese Norm für die Prüfung von Brandschutzklappen in Unterdecken nicht geeignet.
Élément introductif - Élément central - Partie 2 : Élément complémentaire
La présente partie de la Norme européenne EN 1366 prescrit une méthode pour déterminer la résistance au
feu des clapets résistants au feu installés dans des éléments de séparation conçus pour résister à la chaleur
et au passage des fumées et des gaz à haute température. La présente norme est utilisée conjointement avec
l'EN 1363-1.
Sans modification, elle ne convient pas aux essais de clapets résistant au feu dans les plafonds suspendus.
Preskusi požarne odpornosti servisnih inštalacij – 2. del: Požarne lopute
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 1366-2:2010
01-april-2010
Preskusi požarne odpornosti servisnih inštalacij – 2. del: Požarne lopute
Fire resistance tests for service installations - Part 2: Fire dampers
Feuerwiderstandsprüfungen für Installationen - Teil 2: Brandschutzklappen
Ta slovenski standard je istoveten z: prEN 1366-2
ICS:
13.220.50 Požarna odpornost Fire-resistance of building
gradbenih materialov in materials and elements
elementov
oSIST prEN 1366-2:2010 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 1366-2:2010
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oSIST prEN 1366-2:2010
EUROPEAN STANDARD
DRAFT
prEN 1366-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2010
ICS 13.220.50 Will supersede EN 1366-2:1999
English Version
Fire resistance tests for service installations - Part 2: Fire
dampers
Feuerwiderstandsprüfungen für Installationen - Teil 2:
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 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland 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
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1366-2:2010: E
worldwide for CEN national Members.
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Contents Page
Foreword .4
Introduction .5
1 Scope .5
2 Normative references .5
3 Terms and Definitions .6
4 Test equipment .7
4.1 General .7
4.2 Connecting duct .7
4.3 Volume flow measuring station .7
4.4 Condensing unit .7
4.5 Gas temperature measuring devices .7
4.6 Exhaust fan system .7
5 Test conditions .8
6 Test specimen .8
6.1 Size .8
6.2 Number of tests .8
6.3 Design .9
7 Installation of test specimen . 10
7.1 General . 10
7.2 Supporting construction . 10
7.3 Minimum separation . 11
8 Conditioning . 11
9 Application of instrumentation . 11
9.1 Thermocouples . 11
9.2 Furnace pressure . 12
10 Test procedure . 12
10.1 Determination of leakage of connecting duct and measuring station . 12
10.2 Opening and closing test . 13
10.3 Determination of leakage at ambient temperature . 13
10.4 Fire test procedure . 13
11 Performance criteria . 15
12 Test report . 16
13 Field of direct application of test results . 17
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13.1 Size of fire damper . 17
13.2 Fire dampers installed within structural openings . 17
13.3 Fire dampers installed onto the face of a wall or a floor . 17
13.4 Fire dampers remote from a wall or floor . 18
13.5 Separation between fire dampers and between fire dampers and construction elements . 18
13.6 Supporting constructions . 18
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Foreword
This document (prEN 1366-2:2010) 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 1366-2:1999.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of 89/106/EEC.
EN 1366 ‘Fire resistance tests for service installations’ consists of the following
Part 1: Ducts
Part 2: Fire dampers
Part 3: Penetration seals (in course of preparation)
Part 4: Linear joint seals (in course of preparation)
Part 5: Service ducts and shafts (in course of preparation)
Part 6: Raised floors (in course of preparation)
Part 7: Closures for conveyors and trackbound transportation systems (in course of preparation)
Part 8: Smoke extraction ducts (in course of preparation)
Part 9: Single compartment smoke extraction ducts (in course of preparation)
Part 10: Smoke control dampers (in course of preparation)
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Introduction
The purpose of the test is to evaluate the ability of a fire damper to prevent fire and smoke spreading from one
fire compartment to another through the air ductwork system which may penetrate fire separating walls and
floors.
The fire damper is attached (directly or remotely via a section of ducting), to a fire separating element in a
manner representative of practice. Tests are performed starting with the fire damper in the open position to
expose the temperature sensing element of the fire damper to furnace conditions.
Temperature and integrity measurements are carried out in various parts of the test construction during the
test. The leakage of the fire damper system is measured (continuously during the test) by direct flow
measurements whilst maintaining a constant pressure differential across the closed fire damper of 300 Pa.
The leakage of the fire damper in the closed position is also measured at ambient temperature, where a
reduced leakage classification is required to be achieved.
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 that there is a possibility that toxic and/or harmful smoke and
gases may be evolved 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 shall be made and safety precautions shall be
identified and provided. Written safety instructions shall be issued. Appropriate training shall be given to
relevant personnel. Laboratory personnel shall ensure that they follow written safety instructions at all times.
1 Scope
This Part of EN 1366 specifies a method for determining the fire resistance of fire dampers installed in fire
separating elements designed to withstand heat and the passage of smoke and gases at high temperature.
The Standard is used in conjunction with EN 1363-1.
This standard is not suitable for testing fire dampers in suspended ceilings without modification.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
prEN 520, Gypsum plasterboards — Specification — Test method (ISO 6308:1980 modified).
EN 1363-1, Fire resistance tests — Part 1: General requirements.
EN 1363-2, Fire resistance tests — Part 2: Alternative and additional procedures.
prEN ISO 13943, Fire safety — Vocabulary (ISO/DIS 13943:1998).
EN ISO 5167-1, Measurement of fluid flow by means of orifice plates, nozzles and venturi tubes inserted in
circular cross-section conduits running full (ISO 5167-1:1991).
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ISO 5221, Air distribution and air diffusion — Rules to methods of measuring air flow rate in an air handling
duct.
3 Terms and Definitions
For the purposes of this Part of EN 1366, the definitions given in EN 1363-1 and prEN ISO 13943, together
with the following, apply:
3.1
fire damper
a device for use in heating, ventilation and air-conditioning (HVAC) systems at fire boundaries to maintain
compartmentation and protect means of escape in case of fire – it may have reduced smoke leakage
characteristics
3.2
insulated fire damper
a fire damper which satisfies both the integrity and insulation criteria for the anticipated fire resistance period
3.3
uninsulated fire damper
a fire damper which satisfies the integrity criteria for the anticipated fire resistance period, but which does not
provide a long enough insulation period to gain an EI classification
3.4
fire damper actuating mechanism
a mechanism, integral or directly associated with the fire damper which, when initiated causes the damper to
change from the "open" to the "closed" position
3.5
temperature sensing element
a thermally actuated device designed to respond to a rise in temperature of the surrounding air and release
the fire damper blade(s) at a predetermined temperature. It can interface with mechanical, electrical,
electronic, or pneumatically operated actuating mechanisms which are positioned integrally or remotely from
the device
3.6
test specimen
the fire damper, connecting frame and (if applicable) the perimeter penetration sealing system
3.7
connecting duct
the duct section between the fire damper or supporting construction and the measuring station
3.8
test construction
the complete assembly of the test specimen, the connecting duct and the supporting construction
3.9
measuring station
The equipment installed between the connecting duct and the exhaust equipment to determine the volume
flow rate of gases passing through the fire damper under test
3.10
exhaust equipment
The equipment consisting of a fan and balancing or dilution dampers (if any), to apply and maintain the
underpressure in the connecting duct
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3.11
HVAC system
Heating, ventilating and air conditioning system
3.12
Compartment boundary
text of the definition
4 Test equipment
4.1 General
In addition to the test equipment specified in EN 1363-1, and if applicable, EN 1363-2, the following is
required: Examples of test configurations are shown in figures 1 and 2.
4.2 Connecting duct
The connecting duct shall be of all welded construction fabricated from (1,5 + 0,1) mm thick steel with a width
and height appropriate to the size of fire damper being tested. The duct shall have a length of two times the
diagonal dimension of the damper up to a maximum of 2 m. The connecting duct shall be provided with a gas
tight observation window.
4.3 Volume flow measuring station
This shall consist of a venturi, orifice plate, or other suitable device and (where necessary) an air flow
straightener, installed in straight lengths of pipe, all sized to EN ISO 5167-1 and ISO 5221. It shall be installed
between the connecting duct and the exhaust fan to determine the volume flow rate of gases passing through
the fire damper under test. The measuring device shall be capable of measuring to an accuracy of ± 5%.
Regardless of whether vertical or horizontal fire dampers are being tested, the volume flow measuring station
shall always be used in a horizontal orientation.
4.4 Condensing unit
Where materials used in the construction of a fire damper may generate quantities of steam during the fire
test, a condensing unit having provision for drainage shall be installed between the fire damper and the flow
measuring device. When using the condensing device, the temperature recorded by the thermocouple
positioned downstream of the flow measuring device described in 4.3 shall not exceed 40 °C.
4.5 Gas temperature measuring devices
These shall be positioned adjacent to the flow measuring device. A suitable device is a 1,5 mm diameter
sheathed thermocouple orientated vertically with its measuring junction located at the centre line of the
measuring duct and at a distance equal to twice the diameter of the measuring duct downstream from the flow
measuring device. A similar thermocouple shall be located at the exit from the connecting duct plenum (see
figure 1).
4.6 Exhaust fan system
This shall be capable of controlling the flow rates and maintaining the specified pressure differential between
the connecting duct and the furnace when the fire damper is closed.
The 300 Pa (or higher if applicable) pressure differential shall be regulated by means of a dilution damper
installed just before the fan inlet. The pressure shall be controlled to within + 5% of the specified value. A
balancing damper shall be fitted at the outlet of the fan to adjust the pressure range of the systems to suit the
fire damper under test. A variable speed fan may be used instead of the dilution damper.
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5 Test conditions
The heating conditions and the furnace atmosphere shall conform to those given in EN 1363-1, or if
applicable, EN 1363-2.
The furnace pressure shall be controlled to EN 1363-1, except in the case of testing fire dampers installed in a
vertical separating element when the pressure shall be controlled to (15 ± 3) Pa at mid height of the damper. If
two such fire dampers are being tested simultaneously, this pressure shall be established at mid height of the
lower fire damper.
For fire dampers installed in a horizontal separating element the pressure shall be controlled to (20 ± 3) Pa at
100 mm below the underside of the separating element to which it is fixed.
Details of pressure conditions within the connecting duct are given in 9.2.
6 Test specimen
6.1 Size
For the fire test, see 10.4, the maximum size of fire damper shall be tested. For the determination of leakage
at ambient temperature test, see 10.3, both the smallest and the largest size fire damper shall be tested.
6.2 Number of tests
The number of test specimens required shall be determined from tables 1 and 2. For establishing the
symmetry of a fire damper, the presence of the actuating mechanism can be ignored. However, in such a
case the damper shall be installed so that the temperature sensing element is on the side away from the
furnace, as this is considered to be the more onerous condition because as it will be further from the furnace,
the time to its operation will be consequently longer.
When insulated dampers are faced fixed to a wall, then two tests are required; one with the damper inside the
furnace and one outside. In the case of an uninsulated damper fixed in this manner, only a damper on the
inside of the furnace needs to be tested, as this is considered to be to the most onerous condition.
Table 1 Number of tests – standard application
Fire damper installation
Asymmetrical fire damper Symmetrical fire damper
application in practice
Installed within a wall 2 1
Installed within a floor 2 1
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Table 2 Number of tests – special application
Fire damper installation Asymmetrical fire damper Symmetrical fire damper
application in practice
Installed on face of wall 2 1
Installed on face of floor 2 1
Damper mounted on section of
1 for wall application 1 for wall application
duct in the fire compartment (wall
1 for floor application 1 for floor application
and floor application)
Damper mounted on section of
duct outside the fire compartment 1 1
(wall only)
6.3 Design
6.3.1 General
The test shall be made on a test specimen representative of the assembly on which information is required.
6.3.2 Orientation to be tested
Fire dampers which are to be installed in both horizontal and vertical constructions shall be tested in both
orientations.
6.3.3 Fire dampers installed within a wall or floor opening
Fire dampers which are to be installed within an opening in line with a wall shall be tested as shown in figure
1. Fire dampers which are to be installed within an opening in line with a floor shall be tested as shown in
figure 2.
6.3.4 Fire dampers mounted on to the face of a wall or floor
Uninsulated fire dampers which are to be mounted onto the face of a wall or floor shall be tested with the fire
damper positioned within the furnace. An example of a fire damper mounted onto the face of a wall inside the
furnace is shown in figure 3.
Insulated fire dampers which are to be mounted onto the face of a wall or floor shall be tested from both sides
so that the insulation properties of the fire damper body, and where appropriate the duct, can be evaluated.
An example of a fire damper mounted onto the face of a wall outside the furnace is shown in figure 4. Fire
dampers which can be mounted above or below the floor shall be subjected to fire from below.
6.3.5 Fire Dampers mounted remote from a wall or floor
6.3.5.1 General
For test purposes, fire dampers which are to be mounted remote from the wall or floor shall be attached to a
length of ductwork. This duct shall be attached to the supporting construction with the fire damper installed at
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the other end of the duct. This ductwork shall be considered as part of the test specimen and shall be installed
by the sponsor.
6.3.5.2 Fire dampers mounted inside the furnace
The length of ductwork inside the furnace described in 6.3.5.1 shall be (1500 + 50) mm. The distance between
the outer surface of the duct and the furnace wall, roof or floor shall be not less than 500 mm. An example of a
fire damper mounted remote from a wall inside the furnace is given in figure 5.
6.3.5.3 Fire dampers mounted outside the furnace
The length of ductwork outside the furnace described in 6.3.5.1 shall be (500 + 50) mm. An example of a fire
damper mounted remote from a wall outside the furnace is given in figure 6.
6.3.6 Temperature sensing element
The temperature sensing element shall be included in the test specimen configuration. Where alternative
release mechanisms are in series with the basic temperature sensing element and can be shown not to inhibit
the basic release mechanism then only the one such mechanism is required to be tested.
7 Installation of test specimen
7.1 General
The test specimen shall be installed, as far as possible, in a manner representative of practice.
The fire damper shall be installed and sealed as in practice in a supporting construction in accordance with
the manufacturer's instructions. Where the manufacturer of the fire damper requires it to be tested in a length
of insulated ductwork he shall specify the length over which the duct is to be insulated as shown in figure 7.
7.2 Supporting construction
The supporting construction selected shall have fire resistance equal to (or greater than, the anticipated fire
resistance of the fire damper being tested.
NOTE If at the end of the test duration, the damper is performing better than it is intended, the test should be allowed
to continue provided the damper can still stay in place.
Information on the applicability of the test results when a specific supporting construction is given in clause 13.
Examples of standard supporting constructions are given in table 3 to 5.
Table 3 Standard rigid wall constructions
3
Type of construction Thickness mm Density kg/m Test duration t h
t ≤ 2
110 ± 10 2200 ± 200
Normal
150 ± 10 2200 ± 200 2 < t ≤ 3
concrete/masonry
175 ± 10 2200 ± 200
3 < t ≤ 4
110 ± 10 650 ± 200 t ≤ 2
a
Aerated concrete
150 ± 10 650 ± 200
2 < t ≤ 4
a
This supporting construction may be made from blocks, bonded together with mortar or adhesive
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Table 4 Standard flexible wall constructions (gypsum plasterboard type F to EN 520)
Fire resistance
Wall constructions
(minutes)
Number of layers Thickness (mm)
Thickness (mm) Insulation p/D
on each side ± 10%
30 1 12,5 40/40 75
60 2 12,5 40/40 100
90 2 12,5 60/50 125
120 2 12,5 60/100 150
180 3 12,5 60/100 175
240 3 15 80/100 190
p is the density in kg/m³ of mineral wool insulation inside the wall
D is the thickness in mm of mineral wool insulation inside the wall
Table 5 Standard floor constructions
Type of Thickness Density Test duration t
3
construction mm kg/m h
110 ± 10 2200 ± 200 t ≤ 1,5
Normal concrete 150 ± 10 2200 ± 200 1,5 < t ≤ 3
175 ± 10 2200 ± 200
3 < t ≤ 4
125 ± 10 650 ± 200 t ≤ 2
Aerated concrete
150 ± 10 650 ± 200
2 < t ≤ 4
7.3 Minimum separation
If more than one damper is tested at one time the distance between the fire dampers shall not normally be
less than 200 mm, as shown in figures 8 and 9. However, if a specific installation requires fire dampers to be
closer, then they shall be tested to the minimum separation used in practice.
8 Conditioning
The test specimen and installation construction shall be conditioned in accordance with EN 1363-1.
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. Examples of positions of plate
thermometers for a number of different configurations are shown in figures 3 to 7 and 10. For fire dampers
mounted in a wall, the plate thermometers shall be oriented so that side ‘A’ faces towards the back wall of the
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furnace. For fire dampers mounted in a floor, the plate thermometers shall be oriented so that side ‘A’ faces
the floor of the furnace.
9.1.2 Unexposed surface temperature
The positions of unexposed surface thermocouples shall be in accordance with EN 1363-1 and, depending on
the method of mounting the fire damper selected, at the positions shown in figures 3 to 7 and 10. At least one
thermocouple of each type shall be positioned on each side of rectangular dampers.
Note: for the purposes of EXAP information up to 5 thermocouples one spaced by 50 mm from each or any
thermocouple Ts and then each further one a further 50mm from the previous (from each side of the damper,
on the unexposed surface of the supporting construction) in order to measure the thermal influence of the
damper to the supporting construction and vice-versa.
9.2 Furnace pressure
9.2.1 General
Furnace pressure shall be measured in accordance with EN1363-1.
9.2.2 Pressure differential measurement, furnace and connecting duct
A pressure tapping shall be located on the centre line, at mid height, of one vertical side wall of the connecting
duct. Instrumentation to determine the pressure differential between the furnace and the connecting duct shall
be provided. The instrument shall have a measurement capacity 300 Pa higher than the test pressure chosen
for the test.
10 Test procedure
10.1 Determination of leakage of connecting duct and measuring station
10.1.1
Seal the inlet aperture of the fire damper using impervious material, additionally closing the fire damper, if this
is possible.
10.1.2
Assemble the connecting duct, the measuring station and the exhaust fan as shown in figure 1 for wall
mounted fire dampers or as shown in figure 2 for floor mounted fire dampers. The joints between each
component shall be sealed with high temperature gaskets and/or sealants.
10.1.3
Connect an orifice plate, venturi or other suitable device to a suitable recording instrument calibrated and
complying with EN ISO 5167-1 and ISO 5221. Calculate the leakage from the recorded pressure differential
from the orifice plate, venturi or other suitable device using the formulae for volume flow rates given in EN ISO
5167-1 and ISO 5221.
NOTE It may be necessary to use a different size of orifice plate, venturi or other suitable device for the
determination of the leakage of the connecting duct and measuring station to that used for the leakage tests described in
10.3.
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10.1.4
Adjust the exhaust fan so that the air leakage through the connecting duct and measuring station can be
measured at 300Pa. The pressure diffe
...
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