Методи випробувань на вогнестійкість інженерних систем. Протипожежні клапани

1 2 4 1 2 З? 4 5 6 7 8 9 10 11 12 13 CONTENTS

page
Foreword 1
Introduction 2
Caution 2
1 Scope 3
2 Normative references 3
3 Definitions 4
4 Test equipment .5
5 Test conditions 7
6 Test specimen 7
7 Installation of test specimen 11
8 Conditioning 13
9 Application of instrumentation .... 13
10 Test procedure 14
11 Performance criteria 18
12 Test report 18
13 Field of direct application of test
results 20

in EN 1366-2:1999 - - - - - IV

FIRE RESISTANCE TESTS FOR SERVICE INSTALLATIONSFire dampers Foreword
This European Standard 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of an identical text or by endorsement, at the latest by February 2000, and conflicting national standards shall be withdrawn at the latest by February 2000.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.
This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of the Construction Products Directive.
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)
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 thermal release mechanism 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 impermeability of the fire damper system is measured by direct flow measurements whilst maintaining a constant pressure differential across the closed fire damper of 300 Pa. The tightness of the fire damper in the closed position is also be measured at ambient temperature.
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.

1 2 prEN 520, EN 1363-1, EN 1363-2, 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.
The method is primarily intended for tests of mechanical devices. It is not suitable for testing fire dampers in suspended ceilings without modification.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to 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.
EN ISO 5167-1, ISO 5221, 3.1 3.2 3.3 3.4 3.5 EN ISO 5167-1, Measurement of fluid flow by means of orifice plates, nozzles and Venturi tube sinserted in circular cross-section conduits running full (ISO 5167-1:1991).
ISO 5221, Air distribution and air diffusion - Rules to methods of measuring air flow rate in an air handling duct.
3 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 mobile closure within a duct which is designed to prevent the passage of fire.
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 provides not more than 5 mins insulation.
3.4 fire damper actuating mechanism: A mechanism, integral or directly associated with the fire damper which, when initiated by the fire damper release device, causes the movable component of the damper to change from the "open" to the "closed" position.
3.5 thermal release mechanism: 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

3.6 3.7 3.8 3.9 3.10 4 4.1 4.2 electrical, electronic, or pneumatically operated 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.
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 4.4 4.5 4.6 6
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 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 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 flowmeasuring 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.

5 6 6.1 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 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 For fire dampers insta