SIST EN 12094-9:2003

Fixed firefighting systems - Components for gas extinguishing systems - Part 9: Requirements and test methods for special fire detectors

This European Standard specifies requirements and test methods for for special fire detectors, other than fire detectors covered by EN 54, used inert gas- or halo-carbon-gas fire extinguishing systems. Special fire detectors are heat sensitive devices, including a mounting device, designed to react at a predetermined temperature by: - bursting of a glass bulb; - melting of a fusible element.

Ortsfeste Brandbekämpfungsanlagen - Bauteile für Löschanlagen mit gasförmigen Löschmitteln - Teil 9: Anforderungen und Prüfverfahren für spezielle Branderkennungselemente

Diese Europäische Norm legt Anforderungen und Prüfverfahren für spezielle Branderkennungselemente zum Einsatz in CO2-, Inertgas- oder Feuerlöschanlagen mit halogeniertem Kohlenwasserstoff fest, die nicht durch EN 54-1 erfasst werden.
Diese Europäische Norm gilt für spezielle Branderkennungselemente, die durch
   Platzen eines Glasfässchens oder
   Schmelzen eines Schmelzlotelements
ansprechen.

Installations fixes de lutte contre l'incendie - Eléments constitutifs pour installations d'extinction a gaz - Partie 9: Exigences et méthodes d'essai pour détecteurs spéciaux

La présente norme européenne spécifie les exigences et les méthodes d'essai relatives aux détecteurs spéciaux d'incendie autre que les détecteurs traités dans l'EN 54, les systèmes d'extinctions d'incendie utilisant un gaz inerte ou un gaz halogéné. Les détecteurs spéciaux d'incendie sont des dispositifs sensibles à la chaleur comportant un dispositif de montage et conçus pour réagir à une température pré-déterminée par: - éclatement d'une ampoule de verre; - fusion d'un élément fusible.

Vgrajeni gasilni sistemi - Sestavni deli sistemov za gašenje s plinom - 9. del: Zahteve in preskusne metode za posebne požarne javljalnike

General Information

• Status: Published
• Publication Date: 30-Apr-2003
• ICS: 13.220.10 - Fire-fighting
• Technical Committee: POZ - Požarna varnost
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-May-2003
• Due Date: 01-May-2003
• Completion Date: 01-May-2003
• 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
• Directive: 89/106/EEC - Construction products
• Mandate: M/109 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on fire alarm/detection, fixed firefighting, fire and smoke control and explosion suppression products
• Ref Project: EN 12094-9:2003 - Fixed firefighting systems - Components for gas extinguishing systems - Part 9: Requirements and test methods for special fire detectors

Overview

EN 12094-9:2003 - published by CEN - defines requirements and test methods for special fire detectors used in fixed firefighting gas extinguishing systems. It applies to detectors that are heat-sensitive and operate by bursting a glass bulb or melting a fusible element, used with CO2, inert gases or halocarbon gas systems. This standard covers design, performance, environmental and mechanical stress checks, marking and conformity assessment for special detectors not covered by EN 54.

Key topics and technical requirements

• Scope & device types: Special fire detectors for CO2-, inert- or halocarbon-gas extinguishing systems that actuate at a predetermined temperature by glass bulb burst or fusible element melt.
• Nominal & operating temperature: Detectors must meet nominal operating temperatures and operating-temperature tests aligned with sprinkler requirements in EN 12259-1.
• Thermal response (RTI): Thermal sensitivity is classified by RTI (response time index) per EN 12259-1; for EN 12094-9 the RTI is measured with the C-value set to zero.
• Pressure and force resistance: Requirements for detectors intended to be under permanent gaseous pressurisation (manufacturer to state min/max working pressure) or permanent force (manufacturer to state min/max force). Example: devices for CO2 low-pressure containers shall be designed for at least 25 bar working pressure.
• Environmental & mechanical durability: Tests for heat exposure, thermal shock, low-temperature resistance, corrosion and stress corrosion, vibration (IEC/EN 60068-2-6), and strength of release and mounting elements.
• Functionality & leakage: Detectors shall operate correctly after exposure and show no deterioration or leakage under specified pressures/forces.
• Documentation, marking & conformity: Manufacturer documentation, marking rules, initial type testing and factory production control (FPC) requirements are specified for conformity assessment.

Applications and practical value

• Use EN 12094-9:2003 to ensure special fire detectors reliably trigger gas suppression systems in protected enclosures (server rooms, archives, engine rooms, industrial spaces).
• Practical tasks supported:
  • Product design and selection of heat-actuated release elements (glass bulb / fusible link).
  • Type testing and certification for market access in CEN countries.
  • Installation specification, maintenance criteria and compatibility checks with CO2, inert or halocarbon gas systems.
  • Laboratory test planning (thermal, pressure, vibration, corrosion) and factory production control.

Who should use this standard

• Fire protection equipment manufacturers and designers
• Test laboratories and certification bodies
• System specifiers, consultants and installers of gas extinguishing systems
• Compliance officers and building safety managers

Related standards

• EN 12259-1 (sprinkler requirements and RTI methods)
• EN 54-1 (fire detection systems) - detectors excluded from EN 54 are covered here
• EN 60068-2-6 / IEC 60068-2-6 (vibration testing)
• Other parts of EN 12094 series (components for gas extinguishing systems)

EN 12094-9:2003 is essential when designing, testing or certifying heat-actuated detectors for reliable operation within fixed gas extinguishing systems.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Vgrajeni gasilni sistemi - Sestavni deli sistemov za gašenje s plinom - 9. del: Zahteve in preskusne metode za posebne požarne javljalnikeOrtsfeste Brandbekämpfungsanlagen - Bauteile für Löschanlagen mit gasförmigen Löschmitteln - Teil 9: Anforderungen und Prüfverfahren für spezielle BranderkennungselementeInstallations fixes de lutte contre l'incendie - Eléments constitutifs pour installations d'extinction a gaz - Partie 9: Exigences et méthodes d'essai pour détecteurs spéciauxFixed firefighting systems - Components for gas extinguishing systems - Part 9: Requirements and test methods for special fire detectors13.220.10Gašenje požaraFire-fightingICS:Ta slovenski standard je istoveten z:EN 12094-9:2003SIST EN 12094-9:2003en01-maj-2003SIST EN 12094-9:2003SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12094-9March 2003ICS 13.220.20English versionFixed firefighting systems - Components for gas extinguishingsystems - Part 9: Requirements and test methods for special firedetectorsInstallations fixes de lutte contre l'incendie - Elémentsconstitutifs pour installations d'extinction à gaz - Partie 9:Exigences et méthodes d'essai pour détecteurs spéciauxOrtsfeste Brandbekämpfungsanlagen - Bauteile fürLöschanlagen mit gasförmigen Löschmitteln - Teil 9:Anforderungen und Prüfverfahren für spezielleBranderkennungselementeThis European Standard was approved by CEN on 10 August 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12094-9:2003 ESIST EN 12094-9:2003

(informative)
Clauses of this European Standard addressing the provisions of the EUConstruction Products Directive.19Bibliography.23SIST EN 12094-9:2003

1)Under preparation.SIST EN 12094-9:2003

fire extinguishing installation in which the halocarbon gas is stored at ambient temperatureSIST EN 12094-9:2003

non liquefied gas or mixture of gases which extinguish the fire mainly by reducing the oxygen-concentration in theprotected zone, like argon, nitrogen or CO2 or mixtures of these gases3.7inert gas installation
fire extinguishing installation in which the inert gas is stored at ambient temperature3.8release elementpart of a special fire detector, which operates at a predetermined temperature3.9RTI (response time index)measure of the thermal sensitivity of a special fire detector expressed in (m s)1/23.10series of special fire detectorsseveral special fire detectors of identical design but with different nominal operating temperaturesNOTEThe different nominal operating temperatures are realised in case of glass bulbs by variation of the fill factor in theglass bulb and in case of fusible elements by variation of the fusible material.3.11service loadload which the release element sustains in its mounted position over its design lifetime3.12special fire detectorheat sensitive device other than fire detectors covered by EN 54-1, including a release element designed to reactat a predetermined temperature and a mounting device3.13working pressurepressure at which the component is used in the system4 Requirements4.1 General4.1.1If the special fire detector is designed for use under permanent gaseous pressurisation or under permanentforce, this shall be specified by the manufacturer.For special fire detectors designed for use under permanent gaseous pressurisation the manufacturer shall specifythe maximum and minimum working pressure and the minimum environmental temperature.Special fire detectors for use under permanent gaseous pressurisation from a CO2-low-pressure container shall bedesigned for a working pressure of at least 25 bar.For special fire detectors designed for use under permanent force the manufacturer shall specify the maximum andminimum force.4.1.2If the service load depends on installation conditions, the manufacturer shall specify the conditions(pressure or force) giving the maximum service load.4.1.3The test sample shall conform to the technical description (drawings, parts lists, description of functions,operating and installation instructions) when assessed in accordance with
5.3.SIST EN 12094-9:2003
Nominal operating temperatureSpecial fire detectors shall meet one of the nominal operating temperature requirements for sprinklers according toEN 12259-1:1999+A1.4.3
Operating temperatureWhen tested in accordance with EN 12259-1:1999+A1 (operating temperature test), special fire detectors shallmeet the operating temperature requirements, corresponding to the nominal operating temperature for sprinklersaccording to EN 12259-1:1999+A1.4.4 Thermal responseSpecial fire detectors shall meet one of the RTI classes of the thermal response requirements for sprinklersaccording to EN 12259-1:1999+A1. The test shall be carried out in accordance with EN 12259-1:1999+A1(measurement of RTI) without determination of C-value, which in the calculation of the RTI is set to zero.NOTERTI-formula with the C-value set to zero:)gea1(lnrTTutRTIDD--=wheretr=response time of the test sample in secondsu=air velocity in the test section in m/s at the moment the test sample operatesDTea=mean operating temperature of the component minus mount temperatureThe value of the mean operating temperature is given as the mean value of the measuredoperating temperatures of the test samples tested in the nominal operating temperature test.DTg=air temperature in the test section at the moment the test sample operates minus mounttemperatureln=natural logarithm.4.5 Pressure4.5.1A special fire detector designed for use under permanent gaseous pressurisation shall show no signs ofdeterioration and shall not leak when tested as described in 5.4.1, 5.4.2, 5.4.3 and 5.4.4.Subsequently, a special fire detector shall operate correctly, when tested in accordance with 5.6.4.5.2A special fire detector designed for use under permanent gaseous pressurisation shall not burst whentested as described in 5.4.5.SIST EN 12094-9:2003

ForceA special fire detector designed for use under permanent force shall show no signs of deterioration when tested asdescribed in 5.5.Subsequently, a special fire detector shall operate correctly, when tested in accordance with 5.6.4.7
FunctionA special fire detector shall operate correctly, when tested in accordance with
5.6.4.8
Heat exposure4.8.1A special fire detector shall be exposed to increased ambient temperature in accordance withEN 12259 -1:1999+A1 (heat exposure test for uncoated sprinklers) with the following amendment:The test sample shall be tested under the specified conditions (pressure or force) giving the maximum service load.A special fire detector designed for use under permanent gaseous pressurisation shall show no signs ofdeterioration and shall not leak when tested as described in 5.4.2, after being exposed to increased ambienttemperature as described above.A special fire detector shall operate correctly, when tested in accordance with 5.6, after being exposed to increasedambient temperature as described above.A special fire detector shall fulfil the requirements of
4.3, when tested in accordance with EN 12259-1:1999+A1(operating temperature test), after being exposed to increased ambient temperature as described above.4.8.2When tested in accordance with EN 12259-1:1999+A1 (heat exposure test for glass bulb sprinklers),special fire detectors with glass bulb shall meet the heat exposure requirements for glass bulb sprinklers accordingto EN 12259-1:1999+A1.4.9 Strength of release elementsWhen tested in accordance with EN 12259-1:1999+A1 (strength of release element test for sprinklers), special firedetectors shall meet the strength of release element requirements for sprinklers according toEN 12259-1:1999+A1.4.10 Strength of the mounting supportWhen tested in accordance with EN 12259-1:1999+A1 (strength of sprinkler body test for sprinklers), special firedetectors shall meet the strength of sprinkler body requirements for sprinklers according to EN 12259-1:1999+A1.4.11 Thermal shockA special fire detector with glass bulb shall be tested in accordance with EN 12259-1:1999+A1 (thermal shock test)and meet the thermal shock requirements for sprinklers according to EN 12259-1:1999+A1 with the followingamendment:¾ the subsequent function tests shall be carried out in accordance with 5.6 of this European Standard.4.12 Resistance to low temperatureA special fire detector shall be tested in accordance with EN12259-1:1999+A1 (low temperature test) and meet thelow temperature requirements for sprinklers according to EN 12259-1:1999+A1 with the following amendment:¾ the subsequent function tests shall be carried out in accordance with 5.6 of this European Standard.SIST EN 12094-9:2003

5.8.4.15 Vibration resistanceWhere the correct operation of the special fire detector can be adversely affected by vibration, it shall show novisible signs of deterioration and shall operate satisfactorily, when tested in accordance with 5.6, after beingsubjected to vibration in accordance with 5.9.4.16 Documentation4.16.1The manufacturer shall prepare and maintain documentation.4.16.2The manufacturer shall prepare installation and user documentation, which shall be submitted to the testingauthority together with the test sample(s). This documentation shall comprise at least the following:a) a general description of the component, including a list of its features and functions;b) a technical specification including:1) the nominal operating temperature;2) the information as required in 4.1;3) sufficient information to permit an assessment of the compatibility with other components of the system(if applicable e.g. mechanical, electrical or software compatibility);c)installation and mounting instructions;d)operating instructions;e)maintenance instructions;f)routine testing instructions, if appropriate.4.16.3The manufacturer shall prepare design documentation, which shall be submitted to the testing authoritytogether with the test sample(s). This documentation shall include drawings, part lists, block diagrams (ifapplicable), circuit diagrams (if applicable) and a functional description to such an extent that compliance with thisEuropean Standard may be checked and that a general assessment of the design is made possible.SIST EN 12094-9:2003
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