EN 50281-2-1:1998
(Main)Electrical apparatus for use in the presence of combustible dust - Part 2-1: Test methods - Methods for determining the minimum ignition temperatures of dust
Electrical apparatus for use in the presence of combustible dust - Part 2-1: Test methods - Methods for determining the minimum ignition temperatures of dust
This European Standard specifies two test methods for determining the minimum ignition temperatures of dust for the purpose of selecting electrical apparatus for use in the presence of combustible dust in accordance with EN 50281-1-2:1998 and constructed in accordance with EN 50281-1-1:1998. These methods are not suitable for use with substances having explosive properties. Method A (clause 4) is applicable to the determination of the minimum temperature of a prescribed hot surface which will result in the decomposition and/or ignition of a layer of dust of a specified thickness deposited on it. The method is particularly relevant to industrial equipment with which dusts are present on hot surfaces in thin layers exposed to the atmosphere. Method B (clause 5) is applicable to the determination of the minimum temperature of a prescribed hot surface which will result in the ignition of a cloud of given sample of dust or other particulate solid. The test is intended to be carried out as a complementary test after determining the minimum ignition temperature of a dust layer by method A of this European Standard. NOTE 1 concerning method B: Because the method of operation of the furnace gives short residence times for dust particles within it, this method of test is applicable to industrial equipment where dust is present as a cloud for a short time. This method of test is of small scale and the results are not necessarily representative of all industrial conditions NOTE 2 concerning method B: The method is not applicable to dusts which may, over a longer period of time than provided for in the test method, produce gasses from deposits generated during pyrolysis or smouldering
Elektrische Betriebsmittel zur Verwendung in Bereichen mit brennbarem Staub - Teil 2-1: Untersuchungsverfahren - Verfahren zur Bestimmung der Mindestzündtemperatur von Staub
Matériels électriques destinés à être utilisés en présence de poussières combustibles - Partie 2-1: Méthodes d'essai - Méthodes de détermination de la température minimale d'inflammation de la poussière
Indique deux méthodes d'essai pour la détermination de la température minimale d'inflammation de la poussière.
Električne naprave za uporabo ob prisotnosti gorljivega prahu - 2-1. del: Preskusne metode - Metode za ugotavljanje najnižje (ali minimalne) vžigne temperature prahu + Popravek AC
General Information
- Status
- Withdrawn
- Publication Date
- 08-Sep-1998
- Technical Committee
- CLC/TC 31 - Electrical apparatus for explosive atmospheres - General requirements
- Drafting Committee
- IEC/TC 31 - Electrical apparatus for potentially explosive atmospheres
- Parallel Committee
- IEC/SC 31H - IEC_SC_31H
- Current Stage
- 9960 - Withdrawal effective - Withdrawal
- Start Date
- 19-Sep-2018
- Completion Date
- 23-Sep-2025
Frequently Asked Questions
EN 50281-2-1:1998 is a standard published by CLC. Its full title is "Electrical apparatus for use in the presence of combustible dust - Part 2-1: Test methods - Methods for determining the minimum ignition temperatures of dust". This standard covers: This European Standard specifies two test methods for determining the minimum ignition temperatures of dust for the purpose of selecting electrical apparatus for use in the presence of combustible dust in accordance with EN 50281-1-2:1998 and constructed in accordance with EN 50281-1-1:1998. These methods are not suitable for use with substances having explosive properties. Method A (clause 4) is applicable to the determination of the minimum temperature of a prescribed hot surface which will result in the decomposition and/or ignition of a layer of dust of a specified thickness deposited on it. The method is particularly relevant to industrial equipment with which dusts are present on hot surfaces in thin layers exposed to the atmosphere. Method B (clause 5) is applicable to the determination of the minimum temperature of a prescribed hot surface which will result in the ignition of a cloud of given sample of dust or other particulate solid. The test is intended to be carried out as a complementary test after determining the minimum ignition temperature of a dust layer by method A of this European Standard. NOTE 1 concerning method B: Because the method of operation of the furnace gives short residence times for dust particles within it, this method of test is applicable to industrial equipment where dust is present as a cloud for a short time. This method of test is of small scale and the results are not necessarily representative of all industrial conditions NOTE 2 concerning method B: The method is not applicable to dusts which may, over a longer period of time than provided for in the test method, produce gasses from deposits generated during pyrolysis or smouldering
This European Standard specifies two test methods for determining the minimum ignition temperatures of dust for the purpose of selecting electrical apparatus for use in the presence of combustible dust in accordance with EN 50281-1-2:1998 and constructed in accordance with EN 50281-1-1:1998. These methods are not suitable for use with substances having explosive properties. Method A (clause 4) is applicable to the determination of the minimum temperature of a prescribed hot surface which will result in the decomposition and/or ignition of a layer of dust of a specified thickness deposited on it. The method is particularly relevant to industrial equipment with which dusts are present on hot surfaces in thin layers exposed to the atmosphere. Method B (clause 5) is applicable to the determination of the minimum temperature of a prescribed hot surface which will result in the ignition of a cloud of given sample of dust or other particulate solid. The test is intended to be carried out as a complementary test after determining the minimum ignition temperature of a dust layer by method A of this European Standard. NOTE 1 concerning method B: Because the method of operation of the furnace gives short residence times for dust particles within it, this method of test is applicable to industrial equipment where dust is present as a cloud for a short time. This method of test is of small scale and the results are not necessarily representative of all industrial conditions NOTE 2 concerning method B: The method is not applicable to dusts which may, over a longer period of time than provided for in the test method, produce gasses from deposits generated during pyrolysis or smouldering
EN 50281-2-1:1998 is classified under the following ICS (International Classification for Standards) categories: 29.260.20 - Electrical apparatus for explosive atmospheres. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 50281-2-1:1998 is associated with the following European legislation: EU Directives/Regulations: 2014/34/EU, 94/9/EC; Standardization Mandates: BC/CEN/CLC/08-92. 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.
You can purchase EN 50281-2-1:1998 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CLC standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2000
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3UHVNXVQHPHWRGH0HWRGH]DXJRWDYOMDQMHQDMQLåMHDOLPLQLPDOQHYåLJQH
WHPSHUDWXUHSUDKX3RSUDYHN$&
Electrical apparatus for use in the presence of combustible dust -- Part 2-1: Test
methods - Methods for determining the minimum ignition temperatures of dust
Elektrische Betriebsmittel zur Verwendung in Bereichen mit brennbarem Staub -- Teil 2-
1: Untersuchungsverfahren - Verfahren zur Bestimmung der Mindestzündtemperatur von
Staub
Matériels électriques destinés à être utilisés en présence de poussières combustibles --
Partie 2-1: Méthodes d'essai - Méthodes de détermination de la température minimale
d'inflammation de la poussière
Ta slovenski standard je istoveten z: EN 50281-2-1:1998
ICS:
29.260.20 (OHNWULþQLDSDUDWL]D Electrical apparatus for
HNVSOR]LYQDR]UDþMD explosive atmospheres
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
SIST EN 50281-2-1:2000+AC:
...
SIST EN 50281-2-1:2000+AC:2000 표준 문서는 가연성 먼지의 존재에서 전기 장치의 사용을 위한 테스트 방법을 제시하고 있습니다. 이 표준은 EN 50281-1-2:1998에 따라 가연성 먼지에 노출될 수 있는 전기 장치를 선택하는 데 필요한 최소 발화 온도를 결정하는 두 가지 테스트 방법을 규정합니다. 이 표준의 특징은 방법 A와 방법 B의 두 가지에서 발화 온도를 판별하는 데 초점을 맞춘 것입니다. 방법 A는 지정된 온도의 표면에서 특정 두께의 먼지가 분포한 경우 분해 및 발화를 초래하는 최소 온도를 결정합니다. 이는 산업 장비에서 얇은 먼지 층이 뜨거운 표면에 노출되는 경우에 적합하게 설계되었습니다. 방법 B는 먼지의 구름이 존재할 때의 최소 온도를 파악하여 특정한 주기가 짧은 경우의 산업 장비에 적용할 수 있습니다. 이 방법은 먼지가 단시간 내에 존재하는 경우에 대해 소규모 테스트로 실시되며, 다양한 산업 환경을 모두 대표하지는 않을 수 있다는 점에서 주의해야 합니다. 또한, 두 방법 모두 폭발 특성을 가진 물질에는 적용되지 않음을 명시하고 있어, 안전한 운영을 위한 중요한 기준을 제공합니다. 이러한 점에서 SIST EN 50281-2-1 표준은 가연성 먼지의 테스트 방법에 있어 필수적인 지침으로 여겨집니다. 표준의 타당성과 적용범위는 가연성 먼지의 처리가 중요한 다양한 산업 분야에서 그 중요성을 더욱 강화합니다. 이처럼 SIST EN 50281-2-1은 가연성 먼지의 안전성을 극대화하는 데 기여하여 산업 안전 기준의 역할을 충실히 하고 있으며, 관계자들이 반드시 숙지해야 할 표준이라 할 수 있습니다.
The EN 50281-2-1:1998 standard is a critical document within the scope of safety measures for electrical apparatus utilized in environments where combustible dust is present. This standard presents two definitive test methods, aimed specifically at determining the minimum ignition temperatures of dust, thereby ensuring the selection of appropriate electrical equipment in hazardous settings. One of the key strengths of this standard lies in its comprehensive approach to safety. The standard delineates Method A and Method B with clear procedural guidelines that cater to different scenarios involving combustible dust. Method A focuses on determining the minimum temperature of a hot surface that can ignite a dust layer, particularly in settings where dust accumulates in thin layers. This method is crucial for industries where dust can settle on surfaces that may reach high temperatures, ensuring that equipment is designed to prevent ignition under typical operational conditions. In contrast, Method B addresses the ignition potential of dust clouds, emphasizing short-term exposure scenarios relevant to specific industrial environments. This method complements Method A by providing a different perspective on ignition risks associated with airborne dust, thus enriching the scope of safety assessments. A notable aspect of Method B is its consideration of limitations, including the fact that it is not suitable for all types of dust and may not represent all industrial conditions due to its small-scale testing environment. The relevance of this standard cannot be understated, especially given the increasing focus on safety in industrial operations that handle combustible materials. By adhering to the guidelines set forth in EN 50281-2-1:1998, organizations can mitigate the risks associated with dust ignition, thus promoting a safer work environment and complying with regulatory requirements. Overall, the EN 50281-2-1:1998 standard stands out for its targeted approach to testing ignition temperatures of dust, providing valuable frameworks for industrial applications that prioritize safety in the presence of combustible dust. The clarity in methodology and the emphatic focus on specific industrial contexts further enhance its utility, establishing it as a fundamental resource in the landscape of safety standards.
EN 50281-2-1:1998は、可燃性粉塵の存在下で使用するための電気機器に関する標準であり、粉塵の最小点火温度を決定するための二つの試験方法を規定しています。この標準は、特に産業機器に関連しており、粉塵の層が熱い表面に薄く存在する際の取り扱いに重要です。 まず、標準の範囲は非常に具体的で、情報が明確に整理されています。試験方法A(第4条)では、指定された厚さの粉塵層が熱い表面に堆積した場合に、分解または点火を引き起こす最小温度を測定することに重点を置いています。これは、粉塵が熱い表面に薄く存在する産業プロセスにおいて、特に重要な要素です。 一方、試験方法B(第5条)では、指定された熱い表面上で粉塵の雲の点火を引き起こす最小温度を測定することに焦点を当てています。この方法は、試験方法Aで得られた情報を補完する目的で実施され、粉塵が短時間存在する場合の工業機器に適用されます。ただし、試験方法Bは小規模な試験であり、必ずしもすべての産業条件を代表する結果を示すわけではないため、注意が必要です。 この標準の強みは、可燃性粉塵を扱う際の安全性向上に寄与する点にあります。特に、粉塵が引き起こす火災や爆発のリスクを低減するために、電気機器の選定にあたり、明確で実用的な基準を提供しています。また、試験方法が具体的であるため、現場での実施や評価が容易です。 EN 50281-2-1:1998は、可燃性粉塵の存在に関連する電気機器の設計と運用において、不可欠なガイドラインを提供しているため、広範な産業分野での実用性が高く、重要性が際立っています。全体として、この標準は、可燃性粉塵環境下での安全基準の確立において、非常に適切かつ強力な基準となっています。
Die Norm EN 50281-2-1:1998 bietet essentielle Richtlinien für die Prüfung der minimalen Zündtemperaturen von Staub, was besonders relevant ist für den sicheren Einsatz elektrischer Geräte in Umgebungen mit brennbarem Staub. Diese europäische Norm definiert zwei spezifische Prüfmethoden, die auf die Auswahl von Elektrogeräten gemäß EN 50281-1-2:1998 ausgelegt sind. Die Stärken dieser Norm liegen in ihrer präzisen Fokussierung auf industrielle Anwendungen, wo staubhaltige Materialien auf heißen Oberflächen vorkommen. Die Methode A (Abschnitt 4) ermöglicht es, die minimale Temperatur zu bestimmen, bei der eine Schicht aus Staub – eine wesentliche Variable in vielen industriellen Prozessen – entzündet oder zersetzt wird. Dies ist von Bedeutung, um das Risiko von Überhitzung und anschließender Brandgefahr in Betrieben zu minimieren. Methode B (Abschnitt 5) ergänzt diese Erkenntnisse, indem sie die Zündung eines Staubwolke untersucht. Diese Methode ist besonders relevant für Szenarien, in denen Staub als Kurzzeitwolke vorhanden ist, und bietet wertvolle Informationen zur Sicherheit von industriellen Anlagen. Es ist jedoch zu beachten, dass die Ergebnisse von Methode B aufgrund der experimentellen Bedingungen nicht zwangsläufig alle industriellen Situationen widerspiegeln. Ein entscheidender Punkt der Norm ist, dass diese Prüfmethoden nicht für Substanzen geeignet sind, die explosive Eigenschaften aufweisen, was ihre Anwendung auf brennbare Staubarten begrenzt. Zudem wird in Bezug auf Methode B klargestellt, dass eine längere Aufenthaltszeit von Staubpartikeln im Prüfgerät nicht repräsentativ ist, was die Anwendbarkeit für bestimmte industrielle Bedingungen einschränkt. Insgesamt hebt sich die EN 50281-2-1:1998 als bedeutende Norm hervor, die eine fundierte Grundlage für die Sicherheitsbewertung und Auswahl von elektrischen Geräten in Umgebungen mit brennbarem Staub liefert und damit zur Risikominderung in der Industrie beiträgt.
La norme EN 50281-2-1:1998 se concentre sur la sécurité et la performance des appareils électriques utilisés en présence de poussières combustibles. Son champ d'application est crucial pour la sélection d'équipements adaptés à des environnements industriels où la poussière est présente, offrant ainsi des méthodes précises pour déterminer les températures minimales d'ignition de la poussière. Cette norme présente deux méthodes d'essai distinctes pour évaluer ces températures minimales. La Méthode A, décrite dans la clause 4, est particulièrement pertinente pour les équipements industriels où une couche de poussière est déposée sur des surfaces chaudes, examinant le risque de décomposition et d'ignition d'une couche de poussière d'une épaisseur spécifiée. Ce processus s'avère essentiel pour garantir la sécurité des installations industrielles où la poussière peut s'accumuler. En outre, la Méthode B, détaillée dans la clause 5, évalue la température minimale requise pour l'ignition d'un nuage de poussière. Bien que cette méthode soit considérée comme complémentaire à la Méthode A, elle n'est applicable que dans des situations spécifiques où la poussière est présente sous forme de nuage pendant de faibles intervalles de temps, ce qui peut affecter sa représentativité par rapport aux conditions industrielles variées. Les points forts de la norme incluent sa capacité à fournir des lignes directrices claires pour les tests de sécurité, contribuant ainsi à prévenir les risques d'incendie liés à la poussière combustible. Sa structure et ses méthodes d'essai adéquates renforcent l'importance de la conformité aux exigences de la norme EN 50281-1-2:1998 et de l'EN 50281-1-1:1998, assurant la protection des installations. En résumé, la norme EN 50281-2-1:1998 s'affirme comme un document de référence essentiel pour les professionnels du secteur, offrant des méthodologies statistiques exactes pour la détermination des températures minimales d'ignition des poussières, et s'avère ainsi extrêmement pertinente pour le développement sécuritaire d'appareils électriques dans des environnements exposés à des poussières combustibles.










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