EN 50194-1:2023
(Main)Electrical apparatus for the detection of flammable gases in household premises - Part 1: Test methods and performance requirements
Electrical apparatus for the detection of flammable gases in household premises - Part 1: Test methods and performance requirements
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.
Elektrische Geräte für die Detektion von brennbaren Gasen in Wohnhäusern - Teil 1: Prüfverfahren und Anforderungen an das Betriebsverhalten
Matériels électriques pour la détection des gaz inflammables dans les locaux à usage domestique - Partie 1: Méthodes d’essai et exigences d’aptitude à la fonction
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.
Električne naprave za zaznavanje vnetljivih plinov, ki se uporabljajo v gospodinjskih okoljih - 1. del: Preskusne metode in zahtevane lastnosti
Z revizijo standarda EN 50194-1 naj se vključi tudi gospodinjska uporaba in na splošno vse, kar ni zajeto v standard IEC-EN 60079-29-1, tj. nerazvrščena območja. S tem se bo ocenilo, ali naj se poleg detektorjev (običajno prostostoječih) upoštevajo tudi senzorji ali modul, ki ga je mogoče brez ohišja vgraditi v nekatere naprave.
Na koncu naj se v to novo revizijo vključi sklic na standard skupine, ki je bil v preteklih letih oblikovan za področje zaznavanja plinov in ni vključen v sedanji standard.
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2023
Električne naprave za zaznavanje vnetljivih plinov, ki se uporabljajo v
gospodinjskih okoljih - 1. del: Preskusne metode in zahtevane lastnosti
Electrical apparatus for the detection of flammable gases in household premises - Part 1:
Test methods and performance requirements
Elektrische Geräte für die Detektion von brennbaren Gasen in Wohnhäusern – Teil 1:
Prüfverfahren und Anforderungen an das Betriebsverhalten
Matériels électriques pour la détection des gaz inflammables dans les locaux à usage
domestique - Partie 1: Méthodes d’essai et exigences d’aptitude à la fonction
Ta slovenski standard je istoveten z: EN 50194-1:2023
ICS:
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN 50194-1
NORME EUROPÉENNE
EUROPÄISCHE NORM October 2023
ICS 13.320 Supersedes EN 50194-1:2009
English Version
Electrical apparatus for the detection of flammable gases in
household premises - Part 1: Test methods and performance
requirements
Matériels électriques pour la détection des gaz Elektrische Geräte für die Detektion von brennbaren Gasen
inflammables dans les locaux à usage domestique - in Wohnhäusern - Teil 1: Prüfverfahren und Anforderungen
Partie 1: Méthodes d'essai et exigences d'aptitude à la an das Betriebsverhalten
fonction
This European Standard was approved by CENELEC on 2023-08-14. 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 CEN-CENELEC
Management Centre 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 CEN-CENELEC Management Centre 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50194-1:2023 E
Contents Page
European foreword .5
Introduction .6
1 Scope .7
2 Normative references .8
3 Terms and definitions .8
4 Symbols and abbreviations . 10
5 Design requirements . 11
5.1 General requirements . 11
5.2 Construction . 11
5.3 Visual indicators . 11
5.4 Alarms . 12
5.5 End-of-life . 12
5.5.1 General . 12
5.5.2 Prediction of end-of-life . 12
5.5.3 Inbuilt testing of end-of-life . 12
5.5.4 End-of-life fault warnings . 12
5.6 Fault warnings . 13
5.7 Transmittable output signal (applicable for type A and type C apparatus only) . 13
5.8 Software-controlled apparatus . 13
5.9 Labelling . 13
5.10 Requirements for the use of batteries . 14
5.10.1 Battery low voltage warning . 14
5.10.2 Battery capacity . 14
5.10.3 Battery reversal . 14
5.10.4 Battery connections . 14
5.10.5 Battery removal feature . 15
5.11 Inter-connectable apparatus . 15
5.12 Back-up power source . 15
5.12.1 General . 15
5.12.2 Monitoring of back-up power source. 16
6 Test and performance requirements . 16
6.1 General requirements for tests . 16
6.1.1 Test samples for type testing . 16
6.1.2 Preparation of samples . 17
6.1.3 Use of mask for testing . 17
6.1.4 Test chamber . 17
6.1.5 Unpowered storage . 17
6.2 Normal conditions for tests . 17
6.2.1 General . 17
6.2.2 Test gases for alarm testing . 18
6.2.3 Speed of air and test gas . 18
6.2.4 Power supply . 18
6.2.5 Temperature . 18
6.2.6 Humidity . 18
6.2.7 Pressure . 18
6.3 Test methods and performance requirements . 18
6.3.1 General . 18
6.3.2 Transmittable output signal . 19
6.3.3 Alarm set point . 19
6.3.4 Alarm during warm-up time . 19
6.3.5 Response time . 19
6.3.6 Temperature effects . 20
6.3.7 Humidity effects . 20
6.3.8 Air velocity test . 20
6.3.9 Supply voltage variations (mains powered apparatus only) . 20
6.3.10 Electromagnetic compatibility . 21
6.3.11 Slow increase of gas volume ratio . 21
6.3.12 Effects of other gases . 21
6.3.13 Long term stability . 22
6.3.14 Ignition test . 22
6.3.15 Refrigerant poisoning and oil spray test (for Type C apparatus only) . 23
6.3.16 Alarm sound level . 23
6.3.17 Degree of protection . 24
6.3.18 Mechanical strength . 24
6.3.19 Stability in high humidity test (for type C apparatus) . 24
6.3.20 Stability to low humidity test (for type C apparatus) . 25
7 Apparatus using radio links . 25
7.1 General . 25
7.1.1 General . 25
7.1.2 RF range and reproducibility tests . 25
7.1.3 Failure of radio link . 25
7.1.4 Identification codes . 25
7.1.5 Environmental requirements . 25
7.2 Radio link tests . 26
7.2.1 RF Range . 26
7.2.2 Failure of radio link tests .
...
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