EN 15089:2009
(Main)Explosion isolation systems
Explosion isolation systems
This European Standard describes the general requirements for explosion isolation systems. An explosion isolation system is a protective system, which prevents an explosion pressure wave and a flame or only a flame from propagating via connecting pipes or ducts into other parts of apparatus or plant areas. This European Standard specifies methods for evaluating the efficacy of the various explosion isolation systems, and methods for evaluating design tools for such explosion isolation systems when applying these in practice.
This European Standard also sets out the criteria for alternative test methods and interpretation means to validate the efficacy of explosion isolations.
It covers e.g.:
a) general requirements for the explosion isolation components;
b) evaluating the effectiveness of an explosion isolation system;
c) evaluating design tools for explosion isolation systems.
This European Standard is applicable only to the use of explosion isolation systems that are intended for avoiding explosion propagation between interconnected enclosures, in which an explosion may result as a consequence of ignition of an explosive mixtures e.g., dust-air mixtures, gas-(vapour-)air mixtures, dust-, gas-(vapour-)air mixtures and mists.
In general explosion isolation systems are not designed to prevent the transmission of fire or burning powder either of which can initiate an explosion in downstream plant items. It is necessary to take this situation into account in risk assessments.
This European Standard is only applicable for gas and dust explosions of chemically stable substances and mixtures of these (flame propagating at subsonic velocity).
This European Standard is not applicable for explosions of materials listed below, or for mixtures containing some of those materials:
i) chemically unstable substances that are liable to decompose;
ii) explosive substances;
iii) pyrotechnic substances.
Explosions-Entkopplungssysteme
Diese Europäische Norm beschreibt die allgemeinen Anforderungen an Explosions-Entkopplungssysteme. Ein Explosions-Entkopplungssystem ist ein Schutzsystem, das die Ausbreitung einer Explosionsdruckwelle und einer Flamme oder nur einer Flamme über Verbindungsrohre oder -kanäle in andere Teile der Apparatur oder Anlagenbereiche verhindert. Diese Europäische Norm legt Verfahren zur Bewertung der Wirksamkeit von verschie¬denartigen Explosions-Entkopplungssystemen und Verfahren für die Beurteilung von Simulationsprogrammen für derartige Explosions-Entkopplungssysteme bei der praktischen Anwendung fest.
Diese Europäische Norm legt zudem die Kriterien für alternative Prüfverfahren und Interpretationsmittel zur Bestätigung der Wirksamkeit von Explosions-Entkopplungen fest.
Behandelt werden z. B.:
a) allgemeine Anforderungen an Bauteile zur Explosions-Entkopplung;
b) Bewertung der Wirksamkeit eines Explosions-Entkopplungssystems;
c) Bewertung von Simulationsprogrammen für Explosions-Entkopplungssysteme.
Diese Europäische Norm gilt nur für die Anwendung von Explosions-Entkopplungssystemen, die zur Verhinderung der Weiterleitung von Explosionen zwischen miteinander verbundenen Anlagen vorgesehen sind, in denen eine Explosion als Folge einer Entzündung eines explosionsfähigen Gemischs, z. B. Staub/Luft-Gemische, Gas-(Dampf-)Luft-Gemische, Staub-Gas-(Dampf-)Luft-Gemische und Nebel, eintreten kann.
Im Allgemeinen sind Explosions-Unterdrückungssysteme nicht dafür vorgesehen, die Weiterleitung von Bränden oder brennendem Staub zu vermeiden, wobei jeder von ihnen eine Explosion in nachgeschalteten Anlagenteilen auslösen kann. Bei Risikobeurteilungen ist es notwendig, diesen Sachverhalt zu berück-sichtigen.
Diese Europäische Norm gilt nur für Gas und Staubexplosionen von chemisch stabilen Stoffen und deren Gemischen (Flammenausbreitung mit Unterschallgeschwindigkeit).
Systèmes d'isolement d'explosion
La présente Norme européenne décrit les exigences générales relatives aux systèmes d'isolement d'une explosion. Un système d'isolement d'une explosion a pour but d’empêcher une onde de pression d'explosion et une flamme, ou uniquement une flamme, de se propager vers d'autres parties des équipements ou vers d'autres zones de l'installation, par l'intermédiaire de canalisations ou de conduites de raccordement. Ces normes européennes exposent les méthodes qui permettent d’évaluer l'efficacité des différents systèmes d'isolement, ainsi que les méthodes d'évaluation des outils de conception destinés à ces systèmes lors de leur mise en œuvre.
La présente Norme européenne expose également les critères requis pour d’autres méthodes d’essai ainsi que des moyens d’interprétation destinés à valider les systèmes d'isolement d'une explosion.
Elle couvre par exemple :
a) les exigences générales relatives aux composants des systèmes d'isolement d'une explosion ;
b) l’évaluation de l’efficacité d’un système d'isolement d'une explosion ;
c) l’évaluation des outils de conception destinés à des systèmes d'isolement d'une explosion.
La présente Norme européenne est uniquement applicable aux systèmes d'isolement d'une explosion qui ont pour but d'éviter une propagation de l’explosion entre des enveloppes communicantes dans lesquelles l'explosion résulte de l'inflammation d'une atmosphère explosive, constituée d'un mélange avec l'air de poussière, de gaz-(vapeur), d'un mélange hybride de poussière et de gaz-(vapeur), ou de brouillard.
En règle générale, les systèmes d’isolement d’une explosion ne sont pas conçus pour empêcher la transmission du feu ou de la poudre de combustion qui peuvent déclencher une explosion en aval de l’installation. Il est important de prendre en compte ces éléments dans l’évaluation des risques.
[...]
Sistemi za ločitev eksplozij
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Explosionsentkopplungs-SystemeSysteme d'Explosion IsolationExplosion Isolation Systems13.230Varstvo pred eksplozijoExplosion protectionICS:Ta slovenski standard je istoveten z:EN 15089:2009SIST EN 15089:2009en,fr,de01-julij-2009SIST EN 15089:2009SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15089March 2009ICS 13.230 English VersionExplosion isolation systemsSystème d'isolation d'explosionExplosions-EntkopplungssystemeThis European Standard was approved by CEN on 7 February 2009.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 CEN 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 CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre:
Avenue Marnix 17,
B-1000 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15089:2009: ESIST EN 15089:2009
Verification of design methods . 30 A.1 General . 30 A.2 Design on the basis of an interpretation of test results . 31 A.3 Mathematical model . 32 Annex ZA (informative)
Relationship between this
European
Standard and the Essential Requirements of EU Directive 94/9/EC . 35 Bibliography . 37 Figures Figure 1 — Test arrangement for pressure resistance testing and high-pressure flame proof testing . 15 Figure 2 — Test arrangement for flameproof testing . 16 Figure 3 — Test arrangement for functional testing for passive explosion protection valves . 17 Figure 4 — Test arrangement for functional testing for active isolation valves . 20 Figure 5 — Test arrangement for functional testing for extinguishing barriers . 23 Figure 6 — Test arrangement for functional testing for rotary valves . 26 Figure A.1 — Example of interpolating the minimum and maximum distance of an active explosion valve for enclosure volumes between 1 m³ to 10 m³, triggering device: pressure detection on the enclosure (pa = 0,1 bar) . 31 Figure A.2 — Effect of ignition location, detection system and K-value on minimum installation distance . 33 Tables Table 1 — Type of modules as a function of type of isolation device . 14 Table 2 — Location of ignition source for verification/determination of the minimum installation distance . 19 Table 3 — Location of ignition source to be used for verification/determination of the minimum installation distance . 21 Table 4 — Location of ignition source to be used for verification/determination of the minimum installation distance using flame detection only . 24 Table A.1 — Important criteria, which can influence the design/installation distance of an isolation device. 30 Table ZA — Correspondence between this European Standard and Directive 94/9/EC . 35
1 Scope This European Standard describes the general requirements for explosion isolation systems. An explosion isolation system is a protective system, which prevents an explosion pressure wave and a flame or only a flame from propagating via connecting pipes or ducts into other parts of apparatus or plant areas. This European Standard specifies methods for evaluating the efficacy of the various explosio
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.