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
01-Aug-2016
Withdrawal Date
04-May-2023
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
05-May-2023
Due Date
28-May-2023
Completion Date
05-May-2023
Standard

SIST EN 50281-2-1:2000+AC:2000

English language
30 pages
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Frequently Asked Questions

SIST EN 50281-2-1:2000+AC:2000 is a standard published by the Slovenian Institute for Standardization (SIST). 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

SIST EN 50281-2-1:2000+AC:2000 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.

SIST EN 50281-2-1:2000+AC:2000 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 SIST EN 50281-2-1:2000+AC:2000 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 SIST standards.

Standards Content (Sample)


SLOVENSKI STANDARD
01-april-2000
(OHNWULþQHQDSUDYH]DXSRUDERRESULVRWQRVWLJRUOMLYHJDSUDKXGHO
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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:
...

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La norme SIST EN 50281-2-1:2000+AC:2000 se concentre sur les appareils électriques destinés à être utilisés en présence de poussières combustibles, offrant des méthodes de test cruciales pour déterminer les températures d'inflammation minimales des poussières. Cette norme européenne, orientée vers la sécurité industrielle, est essentielle pour sélectionner des équipements électriques appropriés selon les exigences spécifiées dans les normes EN 50281-1-2:1998 et EN 50281-1-1:1998. Le champ d'application de cette norme est représentant pour l'industrie, car elle précise deux méthodes de test. La Méthode A est fondamentale pour évaluer la température minimale d'une surface chaude prescrite, capable de provoquer la décomposition ou l'inflammation d'une couche de poussière d'épaisseur déterminée. Cette méthode est particulièrement pertinente pour les équipements industriels où les poussières se retrouvent sur des surfaces chaudes à des couches minces exposées à l'atmosphère, soulignant ainsi son applicabilité dans des environnements à risque. D'autre part, la Méthode B permet de déterminer la température minimale d'inflammation d'un nuage de poussière spécifique, ajoutant une dimension complémentaire à la première méthode. Bien que la méthode B soit de petite échelle et limitée dans le temps d'exposition des particules, elle apporte une perspective importante pour l'évaluation des équipements où la poussière se présente brièvement en suspension dans l'air. Un point fort de cette norme est sa capacité à adresser la sécurité des équipements électriques en contexte de poussières combustibles, tout en précisant clairement les limites d'application, notamment en ce qui concerne les substances à propriétés explosives et la pyrolyse. Les notes explicatives fournies pour la méthode B clarifient les conditions de test, garantissant ainsi que les utilisateurs comprennent la portée et les implications des résultats. En somme, la norme SIST EN 50281-2-1:2000+AC:2000 est un outil inestimable pour les industries manipulant des poussières combustibles, offrant des méthodes de test standardisées qui renforcent la sécurité et l'efficacité des équipements électriques dans des conditions potentiellement dangereuses.

SIST EN 50281-2-1:2000+AC:2000 표준은 가연성 먼지가 존재하는 환경에서 사용될 전기 장치에 대한 중요한 시험 방법을 제시합니다. 이 표준의 범위는 두 가지 시험 방법을 포함하고 있으며, 이는 가연성 먼지가 존재하는 시스템의 안전한 설계를 위한 필수 요소입니다. 첫 번째 시험 방법인 A 방법(4조)은 특정 두께의 먼지 층이 depos된 경우, 이를 연소시키거나 분해할 수 있는 열 표면의 최소 온도를 결정하는 데 중점을 둡니다. 이는 산업 장비에서 горяч한 표면에 얇은 먼지 층이 존재할 때 특히 중요한 시험 방법으로, 가연성 먼지의 안전성을 평가하는 데 필수적입니다. 두 번째 시험 방법인 B 방법(5조)은 주어진 먼지 샘플의 구름이 점화되는 최소 열 표면 온도를 결정하는 데 사용됩니다. 이 방법은 A 방법을 통해 먼지 층의 최소 점화 온도를 결정한 후에 보완적으로 수행되어야 하며, 짧은 시간 동안 먼지 구름이 존재하는 산업 장비에 적합합니다. 그러나 B 방법은 작은 규모의 시험으로, 모든 산업 조건을 대표하지 않을 수 있음을 유의해야 합니다. 이 표준은 가연성 먼지의 점화 온도를 결정하는 신뢰할 수 있는 기준으로서, EN 50281-1-2:1998 및 EN 50281-1-1:1998에 따라 전기 장비를 선택하는 데 필수적인 역할을 합니다. 가연성 먼지와 관련된 안전 규정 준수를 위한 이 표준은 산업 현장에서도 그 유용성이 높다고 할 수 있습니다. 이러한 점에서 SIST EN 50281-2-1:2000+AC:2000 표준은 전기 장비의 안전성을 보장하고, 산업 현장에서의 사고를 예방하는 데 매우 중요한 역할을 합니다.

Die Norm SIST EN 50281-2-1:2000+AC:2000 bietet einen klaren Rahmen für die Prüfung der minimalen Zündtemperaturen von Staub, was in der Auswahl von elektrischen Geräten für den Einsatz in der Anwesenheit von brennbarem Staub von entscheidender Bedeutung ist. Der Geltungsbereich dieser Norm ist spezifisch für die Festlegung von zwei Testmethoden, die es ermöglichen, die potenzielle Zündgefahr von Staub in industriellen Anwendungen zu bewerten, und zwar gemäß den Anforderungen der EN 50281-1-2:1998 und der EN 50281-1-1:1998. Ein wesentlicher Stärke dieser Norm ist die Unterscheidung zwischen zwei Testmethoden, A und B, die jeweils spezifisch auf unterschiedliche Szenarien angewendet werden. Methode A ermöglicht die Bestimmung der minimalen Zündungstemperatur einer vorgesetzten heißen Oberfläche, die einen Staubschicht von definierter Dicke entzündet. Diese Methode ist besonders relevant für Industriegeräte, bei denen Staub in dünnen Schichten auf heißen Oberflächen in Kontakt mit der Luft steht. Methode B dagegen bietet einen einzigartigen Ansatz zur Bestimmung der Zündungstemperatur eines Staubwolke, die nur kurzzeitig vorhanden ist. Diese Differenzierung ist von äußerster Wichtigkeit, da sie den spezifischen Bedingungen in industriellen Umgebungen Rechnung trägt und so die Sicherheit von elektrischen Apparaten in diesen Umgebungen gewährleistet. Allerdings ist zu beachten, dass Methode B nicht für Staub geeignet ist, der über längere Zeiträume Gase durch Pyrolyse oder Glühen erzeugen könnte, was die Anwendbarkeit auf bestimmte Materialien einschränkt. Die Norm bietet somit nicht nur technische Richtlinien, sondern auch ein gewisses Maß an Sicherheit und Risikomanagement für die Verwendung von elektrischen Geräten im Zusammenhang mit brennbarem Staub. Die detaillierten Prüfmethoden ermöglichen eine fundierte Entscheidung bei der Auswahl von Apparaten, die sicher im Umgang mit solchen gefährlichen Materialien sind. Die Relevanz der SIST EN 50281-2-1:2000+AC:2000 Norm ist unbestritten, da sie ein essentielles Werkzeug für Ingenieure und Sicherheitsbeauftragte darstellt, um die Gefahren von Staubexplosionen zu bewerten und zu minimieren.

SIST EN 50281-2-1:2000+AC:2000は、可燃性ダストの存在下で使用される電気機器に関するヨーロッパ規格として、非常に重要な役割を果たしています。この標準は、可燃性ダスト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おり、EN 50281-1-2:1998に従って、非爆発性物質の選定に寄与します。 この標準の強みは、特に工業用機器における重要性にあります。方法A(条項4)は、特定の厚さのダスト層に対して、その上に堆積した場合の熱表面の最小温度を測定し、その結果としての分解または点火を評価します。これは、ホットサーフェス上に薄層のダストが存在する工業機器にとって非常に関連性が高く、安全対策を講じるための基準を提供します。 方法B(条項5)は、ダストのクラウドが存在する際の最小点火温度を測定するためのもので、方法Aの後に補完試験として実施されることを意図しています。この方法は、短時間でダストがクラウドとして存在する工業条件において適用可能ですが、試験のスケールは小さく、すべての工業条件を代表するものではないことに注意が必要です。 全体として、SIST EN 50281-2-1:2000+AC:2000は、可燃性ダストを取り扱う際の電気機器の安全性に関連する重要な試験方法を明示しており、業界における安全基準の設定に寄与するものであるため、非常に関連性の高い標準です。

The SIST EN 50281-2-1:2000+AC:2000 standard is a pivotal document that delineates essential test methods for determining the minimum ignition temperatures of dust, which is crucial for ensuring the safety of electrical apparatus used in environments where combustible dust is present. This European Standard is comprehensive in its scope, specifying two distinct methods, referred to as Method A and Method B, which cater to different industrial situations. One of the standard's primary strengths lies in its detailed framework for Method A, which focuses on assessing the minimum temperature of a hot surface necessary to ignite a layer of dust. This method is particularly relevant for industrial settings where dust can accumulate in thin layers on heated surfaces exposed to atmospheric conditions. The clarity and precision in this method allow manufacturers and safety professionals to select appropriate electrical apparatus that meet the safety requirements outlined in EN 50281-1-2:1998. In addition, Method B provides an essential complementary approach, targeting the ignition potential of dust clouds. This method is significant for scenarios where dust is present as a transitory cloud, emphasizing short residence times within the test furnace. Despite being a small-scale test, Method B offers valuable insights for industries where such conditions are prevalent, ensuring that even fleeting interactions with combustible dust are assessed adequately. The relevance of this standard extends beyond mere compliance; it influences the design and construction of electrical apparatus in accordance with EN 50281-1-1:1998, thereby promoting a culture of safety and risk management in environments laden with combustible dust. While the specific limitations of Method B, such as its applicability only to non-explosive dust, are clearly defined, the overall standard serves as a crucial reference point for safe industrial practice. In summary, the SIST EN 50281-2-1:2000+AC:2000 standard is an authoritative document that provides robust methodologies for evaluating ignition risks associated with combustible dust, enhancing safety protocols across various industrial applications.