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EN 50271:2010

(Main)

Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen - Requirements and tests for apparatus using software and/or digital technologies

Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen - Requirements and tests for apparatus using software and/or digital technologies

This European Standard specifies minimum requirements and tests for electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen using software and/or digital technologies. Additional requirements are specified if compliance with safety integrity level 1 (SIL 1) according to EN 61508 series is required for low demand mode of operation. NOTE 1 It is recommended to apply this European Standard for apparatus used for safety applications with SIL-requirement 1 instead of EN 50402. However, the technical requirements of EN 50271 and EN 50402 are the same for SIL 1. NOTE 2 For fixed apparatus used for safety applications with SIL-requirements higher than 1 EN 50402 is applicable. This European Standard is applicable to fixed, transportable and portable apparatus intended for use in domestic premises as well as commercial and industrial applications. This European Standard does not apply to external sampling systems, or to apparatus of laboratory or scientific type, or to apparatus used only for process control purposes. This European Standard supplements the requirements of the European Standards for the detection and measurement of flammable gases and vapours (e.g. EN 60079 29 1, EN 50241 1, EN 50241 2, EN 50194 1, EN 50194 2), toxic gases (e.g. EN 45544 series, EN 50291 1, EN 50291 2) or oxygen (e.g. EN 50104). NOTE 3 These European Standards will be mentioned in this European Standard as "metrological standards". NOTE 4 The examples above show the state of the standardisation for gas detection apparatus at the time of publishing this European Standard. There may be other metrological standards for which this European Standard is also applicable. This European Standard is a product standard which is based on EN 61508 series. It covers part of the phase 9 "realisation" of the overall safety life cycle defined in EN 61508 1.

Elektrische Geräte für die Detektion und Messung von brennbaren Gasen, giftigen Gasen oder Sauerstoff - Anforderungen und Prüfungen für Warngeräte, die Software und/oder Digitaltechnik nutzen

Diese Europäische Norm legt Mindestanforderungen und Prüfungen für elektrische Geräte für die Detektion und Messung von brennbaren Gasen, toxischen Gasen oder Sauerstoff fest, die Software und/oder Digitaltechnik nutzen. Zusätzliche Anforderungen werden festgelegt, wenn eine Übereinstimmung mit dem Sicherheits-Integritätslevel 1 (SIL 1) gemäß Reihe EN 61508 für die Betriebsart mit niedriger Anforderungsrate gefordert wird. ANMERKUNG 1 Es wird empfohlen, diese Europäische Norm für Geräte zum Einsatz in sicherheitsgerichteten Anwendungen mit SIL-Anforderung 1 anstelle der EN 50402 anzuwenden. Die technischen Anforderungen der EN 50271 und der EN 50402 sind jedoch für SIL 1 gleich. ANMERKUNG 2 Für ortsfeste Geräte zum Einsatz in sicherheitsgerichteten Anwendungen mit SIL-Anforderungen größer als 1 ist die EN 50402 anwendbar. Diese Europäische Norm ist anwendbar auf ortsfeste, transportable und tragbare Geräte, die für die Verwendung in Wohnhäusern oder in gewerblichen oder industriellen Anwendungen vorgesehen sind. Diese Europäische Norm gilt nicht für externe Entnahmesysteme, oder für Labor- oder wissenschaftliche Geräte sowie für Geräte, die nur zur Prozesssteuerung eingesetzt werden. Diese Europäische Norm ergänzt die Anforderungen der Europäischen Normen für die Detektion und Messung von brennbaren Gasen und Dämpfen (z. B. EN 60079 29 1, EN 50241 1, EN 50241 2, EN 50194 1, EN 50194 2), toxischen Gasen (z. B. Reihe EN 45544, EN 50291 1, EN 50291 2) oder Sauerstoff (z. B. EN 50104). ANMERKUNG 3 Auf diese Europäischen Normen wird im Text als "messtechnische Normen" Bezug genommen. ANMERKUNG 4 Die oben genannten Beispiele stellen den Stand der Normung für Gaswarngeräte zum Zeitpunkt der Veröffentlichung dieser Europäischen Norm dar. Es können weitere messtechnische Normen bestehen, auf die diese Europäische Norm ebenfalls anwendbar ist. Diese Europäische Norm stellt eine Produktnorm auf Grundlage der Reihe EN 61508 dar. Sie deckt Teile der Phase 9 "Realisierung" des in EN 61508 1 definierten Gesamt-Sicherheitslebenszyklus ab.

Appareils électriques de détection et de mesure des gaz combustibles, des gaz toxiques ou de l'oxygène - Exigences et essais pour les appareils utilisant un logiciel et/ou des technologies numériques

La présente Norme Européenne spécifie les exigences minimales et les essais pour les appareils électriques de détection et de mesure de gaz combustibles, de gaz toxiques ou d'oxygène qui utilisent un logiciel et/ou des technologies numériques. Des exigences supplémentaires sont spécifiées si la conformité avec le niveau d’intégrité de sécurité 1 (SIL 1) conformément à la série EN 61508 est requise pour un mode de fonctionnement à faible demande. NOTE 1 Il est recommandé d’appliquer la présente Norme Européenne plutôt que la EN 50402 pour les matériels utilisés dans des applications de sécurité exigeant le niveau SIL 1. Cependant, les exigences techniques de la EN 50271 et de la EN 50402 sont identiques pour le niveau SIL1. NOTE 2 Pour le matériel fixe utilisé dans des applications de sécurité ayant des exigences de SIL supérieur à 1, la EN 50402 est applicable. Cette Norme Européenne s’applique aux appareils fixes, transportables et portables destinés à être utilisés dans des locaux à usage domestique ainsi qu’à applications commerciales et industrielles. La présente Norme Européenne ne s’applique ni aux systèmes d’échantillonnage externe, ni aux appareils de laboratoire ou à vocation scientifique, ni aux appareils utilisés uniquement à des fins de maîtrise des processus. Cette Norme Européenne complète les exigences des Normes Européennes pour la détection et la mesure des vapeurs et des gaz inflammables (par exemple la EN 60079 29 1, la EN 50241 1, la EN 50241 2, la EN 50194 1, la EN 50194 2), des gaz toxiques (par exemple la série EN 45544, la EN 50291 1, la EN 50291 2) ou de l’oxygène (par exemple la EN 50104). NOTE 3 Dans la présente Norme Européenne, ces Normes Européennes seront appelées « normes métrologiques ». NOTE 4 Les exemples susmentionnés illustrent l'état de la normalisation pour les appareils de détection de gaz au moment de la publication de la présente Norme Européenne. La présente Norme Européenne peut également s’appliquer à d’autres normes métrologiques. La présente Norme Européenne est une norme produit basée sur la série de normes EN 61508. Elle traite également en partie de la phase 9 « réalisation » du cycle de vie de sécurité globale défini dans la EN 61508 1.

Električne naprave za odkrivanje in merjenje vnetljivih plinov, strupenih plinov ali kisika - Zahteve in preskusi za naprave s programsko opremo in/ali digitalno tehnologijo

Ta evropski standard določa minimalne zahteve in preskuse za električne naprave za odkrivanje in merjenje vnetljivih plinov, strupenih plinov ali kisika, s programsko opremo in/ali digitalno tehnologijo. Dodatne zahteve so določene skladno s stopnjo 1 varnostne integritete (SIL 1, ki se v skladu s serijo EN 61508 zahteva za način delovanja pri nizkih zahtevah.

General Information

Status
Withdrawn
Publication Date
03-Jun-2010
Withdrawal Date
31-May-2013
ICS
13.320 - Alarm and warning systems
Technical Committee
CLC/TC 31 - Electrical apparatus for explosive atmospheres - General requirements
Drafting Committee
CLC/SC 31-9 - Electrical apparatus for the detection and measurement of combustible gases to be used in industrial
Parallel Committee
IEC/TC 31 - Electrical apparatus for potentially explosive atmospheres
Current Stage
9960 - Withdrawal effective - Withdrawal
Start Date
15-Jun-2021
Completion Date
15-Jun-2021
Directive
2014/34/EU - Directive 2014/34/EU Of The European Parliament And Of The Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to equipment and protective systems intended for use in potentially explosive atmospheres (recast)
94/9/EC - Directive 94/9/EC of the European Parliament and the Council of 23 March 1994 on the approximation of the laws of the Member States concerning equipment and protective systems intended for use in potentially explosive atmospheres
Ref Project
SIST EN 50271:2010 - Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen - Requirements and tests for apparatus using software and/or digital technologies

Relations

Replaces
EN 50271:2001 - Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen - Requirements and tests for apparatus using software and/or digital technologies
Effective Date
29-Jan-2023
Replaced By
EN 50271:2018 - Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen - Requirements and tests for apparatus using software and/or digital technologies
Effective Date
26-Jun-2018

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 50271:2010
01-september-2010
1DGRPHãþD
SIST EN 50271:2002
(OHNWULþQHQDSUDYH]DRGNULYDQMHLQPHUMHQMHYQHWOMLYLKSOLQRYVWUXSHQLKSOLQRYDOL
NLVLND=DKWHYHLQSUHVNXVL]DQDSUDYHVSURJUDPVNRRSUHPRLQDOLGLJLWDOQR
WHKQRORJLMR
Electrical apparatus for the detection and measurement of combustible gases, toxic
gases or oxygen - Requirements and tests for apparatus using software and/or digital
technologies
Elektrische Geräte für die Detektion und Messung von brennbaren Gasen, giftigen
Gasen oder Sauerstoff - Anforderungen und Prüfungen für Warngeräte, die Software
und/oder Digitaltechnik nutzen
Appareils électriques de détection et de mesure des gaz combustibles, des gaz toxiques
ou de l'oxygène - Exigences et essais pour les appareils utilisant un logiciel et/ou des
technologies numériques
Ta slovenski standard je istoveten z: EN 50271:2010
ICS:
13.230 Varstvo pred eksplozijo Explosion protection
29.260.20 (OHNWULþQLDSDUDWL]D Electrical apparatus for
HNVSOR]LYQDR]UDþMD explosive atmospheres
SIST EN 50271:2010 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN 50271:2010

---------------------- Page: 2 ----------------------

SIST EN 50271:2010

EUROPEAN STANDARD
EN 50271

NORME EUROPÉENNE
June 2010
EUROPÄISCHE NORM

ICS 13.320 Supersedes EN 50271:2001

English version


Electrical apparatus for the detection and measurement of combustible
gases, toxic gases or oxygen -
Requirements and tests for apparatus using software and/or digital
technologies



Appareils électriques de détection  Elektrische Geräte für die Detektion
et de mesure des gaz combustibles, und Messung von brennbaren Gasen,
des gaz toxiques ou de l'oxygène - giftigen Gasen oder Sauerstoff -
Exigences et essais pour les appareils Anforderungen und Prüfungen
utilisant un logiciel et/ou des technologies für Warngeräte, die Software
numériques und/oder Digitaltechnik nutzen




This European Standard was approved by CENELEC on 2010-06-01. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and
notified to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia,
Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania,
Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels


© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50271:2010 E

---------------------- Page: 3 ----------------------

SIST EN 50271:2010
EN 50271:2010 - 2 -
Foreword
This European Standard was prepared by SC 31-9, Electrical apparatus for the detection and
measurement of combustible gases to be used in industrial and commercial potentially explosive
atmospheres, of Technical Committee CENELEC TC 31, Electrical apparatus for potentially explosive
atmospheres. It was submitted to the formal vote and approved by CENELEC as EN 50271
on 2010-06-01.
This document supersedes EN 50271:2001.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The State of the Art is included in Annex ZY “Significant changes between this European Standard
and EN 50271:2001”.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2011-06-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2013-06-01
This European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and covers essential requirements of
EC Directive 94/9/EC. See Annex ZZ.
__________

-------
...

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This European Standard specifies minimum requirements and tests for electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen using software and/or digital technologies. This European Standard is applicable to fixed, transportable and portable apparatus intended for use in domestic premises as well as commercial and industrial applications. This European Standard does not apply to external sampling systems, or to apparatus of laboratory or scientific type, or to apparatus used only for process control purposes. This European Standard supplements the requirements of the European Standards for the detection and measurement of flammable gases and vapours (e.g. EN 60079 29 1, EN 60079-29-4, EN 50194 1, EN 50194 2), toxic gases (e.g. EN 45544 series, EN 50291 1, EN 50291 2) or oxygen (e.g. EN 50104). NOTE 1 These European Standards will be mentioned in this European Standard as "metrological standards". NOTE 2 The examples above show the state of the standardisation for gas detection apparatus at the time of publishing this European Standard. There may be other metrological standards for which this European Standard is also applicable. This European Standard is a product standard which is based on EN 61508 series. It covers part of the phase 10 "realisation" of the overall safety life cycle defined in EN 61508 1. Additional requirements are specified if compliance with safety integrity level 1 (SIL 1) according to EN 61508 series is claimed for fixed or transportable apparatus for low demand mode of operation. NOTE 3 Compliance with safety integrity level 1 (SIL 1) for portable apparatus is not considered because portable apparatus cannot make an automatic executive action. It is recommended to apply this European Standard for apparatus used for safety applications with SIL-requirement 1 instead of EN 50402. However, the technical requirements of EN 50271 and EN 50402 are the same for SIL 1. NOTE 4 For apparatus used for safety applications with SIL-requirements higher than 1 EN 50402 is applicable.

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This European Standard is applicable to apparatus and systems for the detection and measurement of flammable or toxic gases or vapours or oxygen. This European Standard is a product standard which is based on EN 61508 (all parts) and for gas detection systems covers both low and high demand mode at SIL capabilities of 1, 2 or 3 only. Gas detection apparatus and gas detection systems are developed as generic products. This standard covers part of the phase 10 “realisation” of the overall safety lifecycle defined in Figure 2 of EN 61508-1:2010. Configuration and integration into specific applications is not covered by this standard. In the event of conflict between the requirements of this standard and those of EN 61508, EN 50402 will take precedence. NOTE 1 Applications requiring a SIL capability of 4 for a gas detection system are not practicable. NOTE 2 This European Standard is dedicated mainly to fixed apparatus. For portable gas detectors claiming a SIL higher than 1, this European Standard may be applied. This European Standard supplements the requirements of the European Standards for electrical apparatus for the detection and measurement of flammable gases, vapours (e.g. EN 60079-29-1 or EN 60079-29-4), toxic gases (e.g. EN 45544) or oxygen (e.g. EN 50104). NOTE 3 These European Standards are called in the text "metrological standards". The examples above show the state of the standardisation for industrial applications at the time of publishing this European Standard. There may be other metrological standards covering other application fields, for which this European Standard is also applicable. EN 50271 specifies minimum requirements for apparatus using software and/or digital components. It also defines additional optional requirements for compliance with SIL 1 in low demand mode operation. EN 50402 includes all requirements of EN 50271. EN 50402 is also dedicated to apparatus and gas detection systems and/or components and should be used instead of EN 50271 in the following cases: - At SIL 1 when the system contains components not covered by EN 50271; - At SIL 2 and SIL 3; - At all SILs when non-digital based apparatus is used. Applying the above-mentioned metrological standards will ensure the measuring performance is adequate in normal operation of a gas detection system. Additionally the requirements of this European Standard address the functional safety of gas detection systems and encompass criteria for reliability, fault tolerance and avoidance of systematic failures. The avoidance and control of systematic failures will be covered by the requirements for the development processes and techniques and diagnostic measures chosen in the design. This European Standard will lead to the characterisation of the gas detection system by a SIL-capability and related hardware failure rate representing a hierarchical order of safety levels. This will allow the user to incorporate the gas detection system into an overall safety system according to the safety integrity levels of EN 61508 (all parts). This European Standard is applicable for gas detection systems, which may consist of the following functional units: - gas-sampling; - sensor; - signal transmission; - input to control unit; - signal processing in control unit; - output from control unit. This European Standard does not specify requirements for the installation and maintenance of gas detection systems. It also does not specify the physical positioning of measuring points / locations. This European Standard does not specify which SIL-capability is sufficient for which application. NOTE 4 The SIL-capability required for an application will be specified by the user (see Clause 9 and Annex A ).

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Electromagnetic compatibility - Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen
oSIST prEN 50270:2019

This document specifies requirements for the electromagnetic compatibility (EMC) for electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen which are subject to the performance standards for gas detection apparatus, for example EN 45544 (all parts), EN 50104, EN 50194 (all parts), EN 50291 (all parts), EN 50379 (all parts), EN 50543, EN 50545 1, EN 60079 29 1 or EN 60079 29 4. NOTE For the purpose of this standard, the word ‘toxic’ covers ‘very toxic’, ‘toxic’, ‘harmful’, ‘corrosive‘, ‘irritating‘, ‘sensitizing‘, ‘carcinogenic‘, ‘mutagenic‘ and ‘teratogenic‘. This document applies to apparatus intended for use in residential, commercial and light-industrial environments as well as to apparatus intended for use in industrial environments, and includes AC-, DC- or battery powered apparatus. This document is also applicable to apparatus which is intended for use in hazardous areas which could contain explosive or potentially explosive atmospheres. It covers only normal operation and does not cover safety requirements related to EMC phenomena. This document is a product standard which is based on the product family standard EN 61326 1. prEN 50270:2019 takes precedence over the product family standard and over generic standards. This document applies to electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen that include functions specified by the manufacturer as being safety functions and can include functions specified as not being safety functions. All performance standards for the detection and measurement of combustible gases, toxic gases or oxygen include the minimum requirements for functional safety specified in EN 50271. There are also gas detectors and gas detection systems which are intended to be used with safety integrity levels SIL 1 to SIL 3 according to EN 50402 and EN 61508 (all parts). For functional safety in industrial applications, this document has taken into account those aspects of EN 61326 3 2 relating to the measuring and warning function of the apparatus defined as safety function. This standard specifies requirements for immunity tests in relation to continuous and transient, conducted and radiated disturbances, including electrostatic discharges, and also for emission tests. The test requirements are specified for each port considered. Apparatus falling within the scope of this document are classified as follows by the following types. — Type 1: apparatus intended for use in residential, commercial and light-industrial environments, as described in EN 61000 6 1 and EN 61000 6 3. — Type 2: apparatus intended for use in industrial environments, as described in EN 61000 6 2 and EN 61000 6 4. Type 1 apparatus for which the manufacturer claims a safety integrity level should be considered as type 2 apparatus with regard to immunity requirements. This document does not apply to any of the following: — apparatus intended for the detection of dusts or mists in air; — scientific or laboratory based apparatus used only for analysis or measurement; — apparatus used exclusively for process measurement purposes; — apparatus for medical purposes; — apparatus used for breath alcohol measurement — apparatus intended for the direct measurement of automotive exhaust gases.

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prEN 50402:2013(Main)
Electrical apparatus for the detection and measurement of combustible or toxic gases or vapours or of oxygen - Requirements on the functional safety of fixed gas detection systems
oSIST prEN 50402:2013

2015-02-11: WI cancelled following 3-year timeframe * to be replaced by PR=58531.

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EN 50194-1:2023(Main)
Electrical apparatus for the detection of flammable gases in household premises - Part 1: Test methods and performance requirements
SIST EN 50194-1:2023

This document specifies general requirements for the construction, testing and performance of electrically operated apparatus for the detection of flammable gases, designed for continuous operation in a fixed installation in household premises. The apparatus can be mains or battery powered. Additional requirements for apparatus to be used in recreational vehicles and similar premises are specified in EN 50194-2. NOTE For caravan holiday homes EN 50194-1 applies. This document specifies four types of apparatus to warn and/or alarm in the event of an escape of town gas, natural gas or liquefied petroleum gas (LPG), Hydrogen and flammable refrigerant gases: — Type A apparatus – provides a visual and audible alarm and an executive action in the form of an output signal that can actuate directly or indirectly a shut-off device and/or other ancillary device in the event of an escape of town gas, natural gas (LNG) liquefied petroleum gas (LPG) and Hydrogen gases; — Type B apparatus – same as Type A but provides a visual and audible alarm only; — Type C apparatus – provides a visual and audible alarm and an executive action in the form of an output signal that can actuate directly or indirectly a shut-off device and/or other ancillary device in the event of an escape of flammable refrigerant gas A2L, A2 or A3 as classified in other International Standards, e.g. ISO 817; — Type D apparatus – intended to be installed where there can be a source of danger to the public, designed for continuous operation in fixed installations in non-classified explosive atmosphere premises (where the requirements for electrical Ex-safety are not requested). Intended for any flammable gases. Typically Type D apparatus are available with analogue or digital output, designed as detection system. These systems are regularly maintained by competent persons and/or have a protection of IP44 or higher. For type D apparatus, EN 60079-29-1 is applied. See Annex C for further clarification on the apparatus types and their application. NOTE Apparatus complying with this document is not considered suitable for installation in potentially explosive atmospheres, in which case the EN 60079 series applies. NOTE Apparatus complying with EN 60079-29-1 will not necessarily comply with this document. This document does not apply to any of the following: — apparatus intended for the detection of dusts or mists in air; — scientific or laboratory-based apparatus used only for analysis or measurement; — apparatus used exclusively for process measurement purposes; — apparatus for medical purposes; — apparatus used for breath alcohol measurement; — apparatus intended for the direct measurement of automotive exhaust gases; — apparatus intended for use in industrial environments.

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