SIST 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.
Explosionsentkopplungs-Systeme
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).
Systeme d'Explosion Isolation
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.
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Sistemi za ločitev eksplozij
General Information
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Overview - EN 15089:2009 (CEN)
EN 15089:2009 is a European (CEN) standard that defines general requirements and test methods for explosion isolation systems. It covers systems intended to prevent propagation of explosion pressure waves and flames through connecting pipes and ducts between interconnected enclosures. The standard applies to gas and dust explosions of chemically stable substances with subsonic flame propagation and sets criteria to validate isolation efficacy and design tools. It also supports essential requirements of relevant EU directives (see Annex ZA).
Key topics and technical requirements
- Scope and exclusions: Applicable to dust-air, gas-(vapour)-air mixtures and mists. Not applicable to chemically unstable substances, explosive or pyrotechnic materials, or to flame arresters (see EN 12874).
- Types of isolation: Defines active (sensor + control + actuation) and passive isolation systems.
- Component requirements:
- Detection devices (optical, pressure, other actuation)
- Indicating equipment (IE) and Control and Indicating Equipment (CIE), including safety integrity considerations
- Explosion isolation devices: fast-acting isolation valves, extinguishing barriers, rotary valves, diverters, interlocked double valves
- System design: Guidance on integrating isolation with other explosion protection techniques (venting, suppression, explosion-resistant design) and on designing installation distances and closing times.
- Testing and validation: Specifies experimental evaluation and reporting, organized into Test Modules A, B and C:
- Module A - explosion resistance testing
- Module B - flameproof testing
- Module C - functional testing (for passive and active devices)
- Information for use and marking: Requirements for documentation, user instructions and product marking.
Practical applications and users
EN 15089 is relevant for professionals involved in explosion safety, including:
- Process and safety engineers designing dust- and gas-handling systems
- Manufacturers of explosion isolation equipment (valves, diverters, extinguishers)
- System integrators and plant operators implementing explosion protection strategies
- Notified bodies and conformity assessors verifying compliance with EU directives
- Risk assessors selecting appropriate protective measures for interconnected enclosures
Use cases include prevention of explosion propagation between silos, reactors, ducts, cyclones, conveying lines and other interconnected enclosures in chemical, pharmaceutical, food, and bulk-handling industries.
Related standards
Normative references and complementary standards to consult:
- EN 12874 (flame arresters)
- EN 13237 (terms/definitions)
- EN 13673-1 / -2 (gas explosion characteristics)
- EN 14034-1 / -2 (dust explosion characteristics)
- EN 14373 (explosion suppression)
Keywords: EN 15089, explosion isolation systems, explosion protection, active isolation, passive isolation, explosion isolation valve, dust explosions, gas explosions, CEN standard.
Frequently Asked Questions
SIST EN 15089:2009 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Explosion Isolation Systems". This standard covers: 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.
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.
SIST EN 15089:2009 is classified under the following ICS (International Classification for Standards) categories: 13.230 - Explosion protection. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 15089:2009 has the following relationships with other standards: It is inter standard links to oSIST prEN 15089:2024. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 15089:2009 is associated with the following European legislation: EU Directives/Regulations: 2014/34/EU, 94/9/EC; Standardization Mandates: M/BC/CEN/92/46. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
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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 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. This European Standard does not cover flame arresters. For these devices refer to EN 12874. 2 Normative references The following reference 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. EN 12874:2001, Flame arresters – Performance requirements, test methods and limits for use EN 13237, Potentially explosive atmospheres – Terms and definitions for equipment and protective systems intended for use in potentially explosive atmospheres EN 13673-1, Determination of the maximum explosion pressure and the maximum rate of pressure rise of gases and vapours – Part 1: Determination of the maximum explosion pressure SIST EN 15089:2009
7.2.2 Module A: Explosion resistance testing If an explosion resistance testing is necessary the following shall be used: a) Test arrangement: Install the device according to Figure 1. The explosive atmosphere can be of any type, provided the pressure generated is sufficient to test the device‘s required explosion resistance. b) Test assignment/records: The maximum allowable explosion overpressure to be specified for each individual device; recorded test pressure at least 10 % above design pressure or the average of three tests to be 100 %. c) Number of tests: 1 for each size as a minimum. d) Evaluation: Permanent deformation is allowed provided the isolation device does not fail in its function and will not give rise to dangerous effects to the surrounding. SIST EN 15089:2009
Key 1 Location of ignition source (Z1) 2 Pressure transducer (Pt) 3 isolation device Figure 1 — Test arrangement for explosion resistance testing and flame transmission testing at high pressure conditions 7.2.3 Module B: Flame transmission test The testing of the isolation device according to Figure 1 or according to Figure 2 is specified by the intended use. a) Test according to Figure 1 (High pressure conditions): It shall be proven that the isolation device when exposed to high pressures and a flame simultaneously will stop a flame from propagating. 1) Testing: i) Test arrangement: See 7.2.2. ii) Test assignment/records: The presence of flame outside of the device (enclosure) shall be recorded. iii) Number of tests: Minimum 2 per device; smallest and largest size for devices constructed in the same way (with respect to the safe gap, sealing, thickness of the material etc.). If the number of sizes constructed in the same way exceed 5, an additional testing of a size (middle of range) is needed. iv) Evaluation: No explosion flame detection recorded outside of the enclosure at the position of the explosion isolation device. The explosion isolation device can be applied for any explosive atmosphere having a maximum experimental safe gap (MESG) equal to or larger than the explosive atmosphere used for testing. SIST EN 15089:2009
Key 1 location of ignition source (Z1) 5 Foil cover
2 Pressure transducer (Pt)
3 Flame transducer (Ft) L1 Length of pipe: L1 ≥ 20 × DN 4 isolation device L2 Length of pipe: L2 ≥ 1 m Figure 2 — Test arrangement for flame transmission test b) Test according to Figure 2 (Low pressure conditions): It shall be proven that the isolation device when tested in a long pipe will stop a flame from propagating along the ductwork. 1) Testing: i) Test arrangement: Device mounted in standard position between flanges of a long pipe (see Figure 2). Device is set in the closed position; ignition source close to the device (about one diameter). The pipe is filled with appropriate fuel air-mixture (typically propane) on both sides of the device. A foil covers both ends of the pipe. ii) Test assignment/records: The presence of flame before and after the device shall be recorded. It is recommended to measure also the pressure before and after the device. iii) Number of tests: Minimum 2 per device; smallest and largest size for devices constructed in the same way (with respect to the safe gap, sealing, thickness of the material etc.). If the number of sizes constructed in the same way exceeds 5, an additional testing of a size (middle of range) is needed. iv) Evaluation:
No explosion flame detection recorded on the isolated side of the explosion isolation device. The explosion isolation can be applied for any explosive atmosphere having a maximum experimental safe gap (MESG) equal to or larger than the explosive atmosphere used for testing. 7.2.4 Module C: Functional testing 7.2.4.1 General The main objective of the functional testing is the determination/verification of the minimum/maximum installation distance of the isolation device dependent on the method of the detection and to assess the efficacy of the device/system as an explosion isolation device/system according to the intended use as specified by the manufacturer. SIST EN 15089:2009
Key 1 Location of ignition source, Z1, 50% 6 Foil cover with low opening pressure (< 0,1 bar) 2 Location of ignition source, Z2, 10% 7 camera
3 Location of ignition source, Z3, 90% 8 passive explosion protection valve 4 Pressure transducer (Pt) L Installation distance 5 Flame transducer (Ft) Figure 3 — Test arrangement for functional testing for passive explosion protection valves c) Measuring technique The following parameters shall be measured: 1) Pressure, minimum one transducer (Pt) in the enclosure and one directly in front of the explosion isolation device and one after, in case a pipe downstream of the explosion isolation device is used. This transducer shall be mounted with a maximum distance of 100 mm from the connecting flange. 2) Flame, minimum one detector (Ft) at the beginning of the pipe with a maximum distance of 100 mm from the connecting flange and one in front and after the explosion isolation device if a pipe downstream is used with a maximum distance of 100 mm from the connecting flange. 3) Alternatively, two cameras can be used instead of a flame detector in the downstream pipe. SIST EN 15089:2009
The higher value found for the test conditions to be used for verification/determination of the minimum installation distance shall be used as the minimum installation distance. The maximum installation distance shall be determined by varying the distance from the enclosure to the isolation device until the pressures are equal to the resistance of the device determined under Module A. The tests shall be performed with an explosive atmosphere with Kmax and location of ignition source far from the pipe inlet Z3 (90 %). SIST EN 15089:2009
for design for the maximum explosion overpressure pred,max for venting or suppression NOTE The ignition source locations Z1, Z2 and Z3 are all located on the axis trough the connected pipeline. Z1 is located at a distance of
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이 기사는 SIST EN 15089:2009 - 폭발 차단 시스템에 대한 유럽 표준을 설명합니다. 이 표준은 폭발 차단 시스템의 일반 요구 사항을 설명합니다. 이 표준은 다양한 폭발 차단 시스템의 효능을 평가하는 방법과 이러한 폭발 차단 시스템의 설계 도구를 평가하는 방법을 명시합니다. 이러한 폭발 차단 시스템이 이 유럽 표준의 요구 사항에 따라 정의되고 확인되며 설치된 경우 운영의 효과가 높음을 알 수 있습니다. 그러나 발화 위치와 폭발 환경의 모든 시나리오에 대해 폭발 확산 위험을 완전히 제거하는 것은 실용적으로 불가능하며, 어떤 폭발 안전 개념에서 이러한 폭발 차단 시스템을 선택하고 통합할 때는 이 작은 잔류 위험을 고려해야 합니다. 이 유럽 표준은 폭발 차단의 효능을 확인하는 대체 시험 방법과 해석 수단의 기준도 제시합니다. 이에는 다음이 포함됩니다: a) 폭발 차단 구성 요소의 일반 요구 사항; b) 폭발 차단 시스템의 효과성 평가; c) 폭발 차단 시스템의 설계 도구 평가; d) 폭발 차단 시스템의 설치 요구 사항; e) 폭발 차단 시스템의 유지 보수 요구 사항. 이 유럽 표준은 폭발성 혼합물 (먼지-공기 혼합물, 가스-(증기-)공기 혼합물, 먼지-, 가스-(증기-)공기 혼합물 및 액에 발화가 발생할 수 있는 연결된 구획 간의 폭발 확산을 피하기 위해 사용되는 폭발 차단 시스템에만 적용됩니다. 이 표준은 화염차단기에 해당하지 않습니다. 이 장치에 대해서는 EN 12874를 참조하십시오. 이 표준은 화학 물질, 안정된 물질 및 이러한 물질의 혼합물의 폭발 (소음 속도 이하에서 화염 확산)에만 적용됩니다.
The article talks about the European Standard EN 15089:2009, which provides requirements and guidelines for explosion isolation systems. The standard includes methods for evaluating the effectiveness of these systems and their design tools. It emphasizes that while explosion isolation systems installed according to these requirements have a high level of operational effectiveness, it is not possible to completely eliminate the risk of explosion propagation in all scenarios. The standard also addresses installation and maintenance requirements for these systems. It specifically applies to explosion isolation systems used to prevent explosion propagation between interconnected enclosures where explosive mixtures can occur, such as dust-air mixtures, gas-air mixtures, and mists. The standard does not cover flame arresters, which are addressed in another standard (EN 12874). Additionally, the standard is applicable only to explosions involving chemicals, stable materials, and mixtures with flame propagation at subsonic velocity.
記事のタイトル：SIST EN 15089:2009 - 爆発隔離システム 記事の内容：この欧州規格では、爆発隔離システムの一般的な要件について説明しています。この規格は、さまざまな爆発隔離システムの効果を評価するための方法と、これらの爆発隔離システムを実践的に適用する際の設計ツールの評価方法を規定しています。 この欧州規格の要件に従って定義し、証明し、設置された爆発隔離システムは、運用上の効果が非常に高いことが確認されています。ただし、すべての点火位置と爆発状況のシナリオにおいて爆発の拡散リスクを完全に排除することは現実的ではなく、いかなる爆発安全コンセプトにおいても、このわずかな残留リスクを考慮して爆発隔離システムの選択および組み込みを行う必要があります。 この欧州規格では、代替テスト方法と評価手段の基準も示されています。 以下の内容がカバーされています： a）爆発隔離部品の一般的要件； b）爆発隔離システムの効果の評価； c）爆発隔離システムの設計ツールの評価； d）爆発隔離システムの設置要件； e）爆発隔離システムの保守要件。 この欧州規格は、爆発物質（粉じん-空気混合物、ガス-（蒸気）-空気混合物、粉じん- ガス-（蒸気）-空気混合物およびミスト）の点火によって爆発が発生する可能性のある相互接続された容器間での爆発の拡散を避けるために使用される爆発隔離システムにのみ適用されます。 この規格はフレームアレスターを対象としていません。このような装置についてはEN 12874を参照してください。 この規格は化学物質、安定した材料、およびそれらの混合物の爆発にのみ適用されます（亜音速で燃焼が伝播するもの）。この規格は以下の材料の爆発には適用されません。
The article discusses the European Standard EN 15089:2009, which provides guidelines for explosion isolation systems. These systems are designed to prevent the propagation of explosions between interconnected enclosures. The standard includes requirements for the components of these systems, as well as methods for evaluating their effectiveness and design tools. It also covers installation and maintenance requirements. The standard specifically applies to explosion isolation systems used with explosible mixtures such as dust-air mixtures, gas-air mixtures, and mists. However, it does not cover flame arresters, which are addressed in a different standard. The standard is not applicable to explosions of materials listed below a certain velocity.
기사 제목: SIST EN 15089:2009 - 폭발 차단 시스템 기사 내용: 이 유럽 표준은 폭발 차단 시스템에 대한 일반적인 요구 사항을 설명합니다. 이 표준은 다양한 폭발 차단 시스템의 효능을 평가하는 방법과 이를 실무에서 적용할 때의 디자인 도구를 평가하는 방법을 명시합니다. 이 유럽 표준의 요구 사항에 따라 정의되고 인증되며 설치된 폭발 차단 시스템은 운영상의 효능이 높다는 것을 확인할 수 있습니다. 그러나 모든 발화 위치와 폭발 상황의 시나리오에 대해 폭발 확산의 위험을 완전히 제거하는 것은 현실적으로 불가능하며, 어떠한 폭발 안전 개념에서도 해당 폭발 차단 시스템의 선택과 통합은 이 작은 잔여 위험을 고려해야 합니다. 이 유럽 표준은 또한 대체 시험 방법과 해석 수단의 기준을 제시합니다. 이 표준은 다음을 다룹니다: a) 폭발 차단 부품에 대한 일반적 요구 사항 b) 폭발 차단 시스템의 효과성 평가 c) 폭발 차단 시스템 디자인 도구 평가 d) 폭발 차단 시스템 설치 요구 사항 e) 폭발 차단 시스템 유지 보수 요구 사항 이 유럽 표준은 폭발이 일어날 수 있는 폭발성 혼합물 (먼지-공기 혼합물, 가스-(증기-)공기 혼합물, 먼지-, 가스-(증기-)공기 혼합물 및 안개) 간의 폭발 확산을 피하기 위한 폭발 차단 시스템 사용에만 적용됩니다. 이 표준은 화염차단기를 다루지 않습니다. 이 장치에 대해서는 EN 12874를 참조하십시오. 이 표준은 화학물질, 안정된 물질 및 이러한 혼합물 (소음 속도 이하에서 전파되는 화염)의 폭발에만 적용됩니다. 이 표준은 아래에 나열된 물질의 폭발에는 적용되지 않습니다.
この記事は、SIST EN 15089:2009 - 爆発隔離システムに関するヨーロッパ規格について説明しています。この規格は、爆発隔離システムの一般的な要件を説明しています。この規格では、さまざまな爆発隔離システムの有効性を評価するための方法や、実践においてこれらの爆発隔離システムの設計ツールを評価するための方法を規定しています。 このような爆発隔離システムがこのヨーロッパ規格の要件に従って定義され、認証され、設置された場合、運用効果が非常に高いことが確認されています。ただし、着火箇所と爆発の状況のすべてのシナリオにおいて爆発の拡大を完全に排除することは現実的ではなく、爆発の安全概念においてこの小さな残存リスクを考慮に入れる必要があります。 このヨーロッパ規格では、爆発隔離の効果を検証するための代替テスト方法や解釈手段の基準も示されています。 具体的には、以下の項目をカバーしています： a) 爆発隔離部品の一般要件 b) 爆発隔離システムの有効性の評価 c) 爆発隔離システムの設計ツールの評価 d) 爆発隔離システムの設置要件 e) 爆発隔離システムの保守要件 このヨーロッパ規格は、粉塵-空気混合物、ガス-（蒸気-）空気混合物、粉塵-、ガス-（蒸気-）空気混合物、ミストなど、可燃性混合物の引火によって爆発が発生する連結された仕切り壁間での爆発の拡大を避けるための爆発隔離システムの使用にのみ適用されます。 この規格はフレームアレスターには当てはまりません。これに関してはEN 12874を参照してください。 また、この規格は化学物質、安定した物質、およびこれらの混合物の爆発（亜音速での炎の伝播）にのみ適用されます。
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