EN 15198:2007
(Main)Methodology for the risk assessment of non-electrical equipment and components for intended use in potentially explosive atmospheres
Methodology for the risk assessment of non-electrical equipment and components for intended use in potentially explosive atmospheres
This European Standard specifies basic methodology used in achieving safety of equipment for intended use in potentially explosive atmospheres.
The provisions specified in this European Standard are intended for the designer. It also specifies a strategy for standard makers.
This European Standard specifies the procedure and information required to allow ignition risk assessment to be carried out for the design of equipment or component.
This European Standard provides advice for a decision to be made for the categorisation of equipment but does not provide means to prove the conformity of equipment categories.
In this procedure the following information is to be taken into account:
a) Possible occurrence of an explosive atmosphere inside the equipment or component or penetrating the equipment or component from the outside (in normal operation or during malfunctions) and the amount of explosive atmosphere involved leading to possible explosion impact inside of the equipment or component;
b) equipment or components surrounded by an explosive atmosphere (in normal operation or during malfunctions);
c) equipment or components wholly or partly surrounded by an explosive atmosphere considering also any explosive atmosphere in connection (in normal operation or during malfunctions);
d) presence and likelihood (effectiveness) of ignition sources.
The final objective is designing and manufacturing equipment or components intended for use in potentially explosive atmospheres. For this purpose equipment or components if necessary shall be designed with adequate preventive and/or protective measures.
This European Standard specifies neither specific methods of analysis associated with ignition risk assessment, nor specific requirements for a category of equipment. It describes the methodology of ignition risk assessment.
(continued)
Methodik zur Risikobewertung für nicht-elektrische Geräte und Komponenten zur Verwendung in explosionsgefährdeten Bereichen
Diese Norm gibt Anleitungen zum Verfahren und liefert die erforderlichen Informationen, um die für die
Konstruktion von Geräten oder Komponenten durchzuführende Bewertung der Zündgefahren zu ermöglichen.
Bei diesem Verfahren sind folgende Informationen zu berücksichtigen:
mögliches Auftreten einer explosionsfähigen Atmosphäre im Innern der Geräte oder Komponenten oder
deren Eindringen in Geräte oder Komponenten von außen (bei Normalbetrieb oder bei Betriebs-
störungen) und die Menge der beteiligten explosionsfähigen Atmosphäre, die im Innern der Geräte oder
Komponenten zu einer möglichen Explosionswirkung führt;
Geräte oder Komponenten, die von einer explosionsfähigen Atmosphäre umgeben sind (bei Normal-
betrieb oder bei Betriebsstörungen);
Geräte oder Komponenten mit einer im Innern befindlichen explosionsfähigen Atmosphäre, die in die
Umgebung freisetzt werden kann (bei Normalbetrieb oder bei Betriebsstörungen);
Vorhandensein und Wahrscheinlichkeit (Wirksamkeit) von Zündquellen.
Das eigentliche Ziel sind die Konstruktion und Fertigung von Geräten oder Komponenten, die für den Einsatz
in explosionsgefährdeten Bereichen vorgesehen sind. Zu diesem Zweck müssen Geräte oder Komponenten
mit Zündschutzart(en) gebaut werden.
Méthodes pour l'évaluation du risque d'inflammation des appareils et des composants non électriques destinés à être utilisés en atmosphères explosibles
La présente Norme européenne spécifie la méthodologie fondamentale utilisée pour garantir la sécurité des appareils destinés à être utilisés en atmosphères explosibles.
Les dispositions spécifiées dans la présente Norme européenne sont à l’intention du concepteur. Elle prescrit également une stratégie destinée aux normalisateurs.
La présente Norme européenne fournit des indications sur la procédure et les informations requises pour l’évaluation du risque d’inflammation en vue de la conception des appareils et des composants.
La présente Norme européenne donne des conseils pour la prise de décision concernant la classification des appareils en catégories mais ne fournit aucun moyen permettant de prouver la conformité des catégories d’appareils.
Les informations suivantes doivent être prises en compte dans cette procédure :
a) l’apparition possible d’une atmosphère explosible à l’intérieur de l’appareil ou du composant, ou pénétrant dans l’appareil ou le composant depuis l’extérieur (dans des conditions normales de fonctionnement ou en cas de dysfonctionnements) et la quantité d’atmosphère explosible impliquée produisant l’impact d’explosion éventuel à l’intérieur de l’appareil ou du composant ;
b) les appareils ou les composants entourés par une atmosphère explosible (dans des conditions normales de fonctionnement ou en cas de dysfonctionnements) ;
c) les appareils ou les composants entourés complètement ou partiellement par une atmosphère explosible, y compris ceux reliés à une atmosphère explosible (dans des conditions normales de fonctionnement ou en cas de dysfonctionnements) ;
d) la présence et la probabilité (d’apparition) de sources d’inflammation.
La finalité de cette procédure est de concevoir et de fabriquer des appareils ou des composants destinés à être utilisés en atmosphères explosibles.
Metodologija za oceno tveganja neelektrične opreme in komponent, namenjenih za uporabo v potencialno eksplozivnih atmosferah
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Methodology for the risk assessment of non-electrical equipment and components for intended use in potentially explosive atmospheresMéthodes pour l'évaluation du risque d'inflammation des appareils et des composants non électriques destinés a etre utilisés en atmospheres explosiblesMethodik zur Risikobewertung für nicht-elektrische Geräte und Komponenten zur Verwendung in explosionsgefährdeten BereichenTa slovenski standard je istoveten z:EN 15198:2007SIST EN 15198:2007en,fr,de13.230Varstvo pred eksplozijoExplosion protectionICS:SLOVENSKI
STANDARDSIST EN 15198:200701-oktober-2007
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15198August 2007ICS 13.230 English VersionMethodology for the risk assessment of non-electrical equipmentand components for intended use in potentially explosiveatmospheresMéthodes pour l'évaluation du risque d'inflammation desappareils et des composants non électriques destinés àêtre utilisés en atmosphères explosiblesMethodik zur Risikobewertung für nicht-elektrische Geräteund Komponenten zur Verwendung inexplosionsgefährdeten BereichenThis European Standard was approved by CEN on 13 July 2007.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: rue de Stassart, 36
B-1050 Brussels© 2007 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15198:2007: E
Example of a reporting scheme for the ignition risk assessment.14 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 94/9/EC.16 Bibliography.18
Figures Figure 1 — Ignition risk assessment for design of equipment or component.8 Figure 2 — Identification of ignition hazards.10 Tables Table A.1 — Reporting scheme with cross references to the documentation requirements of Clause 6.15 Table ZA.1 — Correspondence between this European Standard and Directive 94/9/EC.16
For relationship with EU Directive 94/9/EC, see informative Annex ZA, which is an integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: 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 the United Kingdom.
This European Standard does not provide means to prove the conformity of equipment categories. The procedure of ignition risk assessment for the design of equipment and components lead to a defined safety level which allows categorisation according to the appropriate criteria.
It is in both the manufacturer's and user's interest to establish a common methodology for achieving safety, reliability and efficacy in functioning and operating equipment and components with respect to the ignition hazards. Thus, ignition risk assessment is a tool which provides the essential link between manufacturers and users, but only aspects that directly address manufacturers are incorporated. Integrated explosion safety is conceived to prevent the formation of explosive atmospheres as well as sources of ignition and, should an explosion nevertheless occur, to halt it immediately and / or to limit its effects. In this connection, the manufacturer must take measures with respect to the potential ignition sources. In addition, equipment and component must be designed and constructed after due analysis of possible operating faults in order as far as possible to preclude dangerous situations taking the misuse which can reasonably be anticipated into account. Therefore it is absolutely necessary to conduct an ignition risk assessment process. For the equipment and components the identification of the potential ignition sources is the most relevant part of the ignition risk assessment.
The provisions specified in this European Standard are intended for the designer. It also specifies a strategy for standard makers. This European Standard specifies the procedure and information required to allow ignition risk assessment to be carried out for the design of equipment or component.
This European Standard provides advice for a decision to be made for the categorisation of equipment but does not provide means to prove the conformity of equipment categories. In this procedure the following information is to be taken into account: a) Possible occurrence of an explosive atmosphere inside the equipment or component or penetrating the equipment or component from the outside (in normal operation or during malfunctions) and the amount of explosive atmosphere involved leading to possible explosion impact inside of the equipment or component; b) equipment or components surrounded by an explosive atmosphere (in normal operation or during malfunctions); c) equipment or components wholly or partly surrounded by an explosive atmosphere considering also any explosive atmosphere in connection (in normal operation or during malfunctions); d) presence and likelihood (effectiveness) of ignition sources. The final objective is designing and manufacturing equipment or components intended for use in potentially explosive atmospheres. For this purpose equipment or components if necessary should be designed with adequate preventive and/or protective measures. This European Standard specifies neither specific methods of analysis associated with ignition risk assessment, nor specific requirements for a category of equipment. It describes the methodology of ignition risk assessment. This European Standard does not apply to equipment with a potentially explosive atmosphere inside under operating conditions, and without interfaces to an external potentially explosive atmospheres. This European Standard is applicable to all categories of equipment referred to in EN 13463-1. This ignition risk assessment procedure does not preclude the conditions prevailing in an installation where the equipment or component is put into operation by a user. NOTE Functional safety assessment of protective systems is covered by EN 15233. 2 Normative references The following referenced 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 1127-1, Explosive atmospheres — Explosion prevention and protection — Part 1: Basic concepts and methodology
probability of occurrence of an ignition source that is capable of igniting an explosive atmosphere 3.2 ignition hazard
occurrence of a potential ignition source that is capable of igniting an explosive atmosphere 3.3
potential ignition source equipment related ignition source that has the capability to ignite an explosive atmosphere (i.e. to become an effective ignition source) 3.4 protective measure means used to reduce the probability of an ignition source to become effective 3.5 ignition risk estimation determination of the probability of the occurrence of an ignition source 3.6 ignition risk evaluation procedure to determine whether the intended level of protection (related to the equipment category) has been achieved 4 General requirements 4.1 Basic concept Ignition risk assessment is a series of logical steps (see Figure 1) that enable designers and safety engineers to examine in a systematic way, the function of an equipment or component arising from its use in a potentially explosive atmosphere and to decide whether protective measures and/or type of protection are needed. The objective shall be to achieve an adequate level of safety.
Ignition risk assessment includes the following four steps:
a) product description: performance, lifetime, configuration (see 5.2), b) identification of ignition hazards (see 5.3), c) ignition risk estimation (see 5.4), d) ignition risk evaluation (see 5.5). These four steps are the basis for the decision whether the intended safety level is achieved (see 5.6). The result of the assessment shall be detailed in the technical documentation (see Clause 6).
NOTE The determination of correct categories and the selection of the suitable protective measures is not part of this standard. 4.2 Extent of ignition risk assessment Initially the boundary or limit of the equipment and/or components must be specified under which the ignition risk assessment has to be carried out. The limit is determined by the extent of explosive atmosphere or the ignition sources which are originated by the considered equipment and/or components.
The ignition risk assessment shall be limited to equipment and/or components and not extended to aspects for which the user is responsible. The extent of the ignition risk assessment, which includes all operations, shall take into account: a) intended use; and b) misuse which can be reasonably anticipated. An ignition risk assessment shall also include the possibility of an explosion inside the equipment and/or components causing an impact on the outside. NOTE Misuse that can be reasonably anticipated indicates incorrect use and/or operation of the equipment and/or components by the operator due to carelessness or misunderstanding. Misuse is not part of the normal operation. Intent is not included in misuse that can reasonably be anticipated. 4.3 Information needed for ignition risk assessment The information needed to perform the ignition risk assessment shall include the following where appropriate: a) intended use referring to group I or group II and categories 1, 2, 3; b) initial appraisal of the equipment or component;
c) materials to be processed (or necessary safety data); d) requirements for maintenance including cleaning; e) design drawings; f) results of design calculations made, examinations carried out. If available: g) test reports, if they allow the evaluation of the probability of occurrence and/or the effic
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