Electrical apparatus for the detection of flammable gases in household applications - Part 1: Test methods and performance requirements

With the revision of the EN 50194-1, it should be included also the Household applications and in general what not covered by the IEC-EN 60079-29-1, that is the non classified areas. It will be to evaluate if to consider not only the detectors (normally stand alone) but also the sensors or module that, without enclosure, may be integrate inside some Appliances. Finally in this new revision it should be implemented the reference to the family standard developed in gas detection in the past years and not included in the present standard

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

Električne naprave za zaznavanje vnetljivih plinov, ki se uporabljajo v gospodinjstvu - 1. del: Preskusne metode in zahtevane lastnosti

General Information

Status

Not Published

Publication Date

31-Aug-2023

ICS

13.320 - Alarm and warning systems

Technical Committee

CLC/TC 216 - Gas detectors (see also SC 31-9)

Drafting Committee

CLC/TC 216/WG 15 - Working group for the revision of EN 50194-1

Current Stage

4599 - Dispatch of FV draft to CMC - Finalization for Vote

Start Date

23-Mar-2023

Due Date

11-May-2022

Completion Date

23-Mar-2023

Ref Project

oSIST prEN 50194-1:2023 - Electrical apparatus for the detection of flammable gases in household applications - Part 1: Test methods and performance requirements

Relations

Revises

EN 50194-1:2009 - Electrical apparatus for the detection of combustible gases in domestic premises - Part 1: Test methods and performance requirements

Effective Date

01-Jun-2021

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SLOVENSKI STANDARD
oSIST prEN 50194-1:2023
01-januar-2023
Električne naprave za zaznavanje vnetljivih plinov, ki se uporabljajo v
gospodinjstvu - 1. del: Preskusne metode in zahtevane lastnosti

Electrical apparatus for the detection of flammable gases in household applications -

Part 1: Test methods and performance requirements

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: prEN 50194-1
ICS:
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
oSIST prEN 50194-1:2023 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 50194-1:2023
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oSIST prEN 50194-1:2023
EUROPEAN STANDARD DRAFT
prEN 50194-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2022
ICS 13.320 Will supersede EN 50194-1:2009
English Version
Electrical apparatus for the detection of flammable gases in
household applications - Part 1: Test methods and performance
requirements
Matériels électriques pour la détection des gaz To be completed
inflammables dans les locaux à usage domestique - Partie
1: Méthodes d'essai et exigences d'aptitude à la fonction
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2023-02-10.
It has been drawn up by CLC/TC 216.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CENELEC 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.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to

provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and

shall not be referred to as a European Standard.
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

Project: 74022 Ref. No. prEN 50194-1 E
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oSIST prEN 50194-1:2023
prEN 50194-1:2022 (E)
Contents Page

European foreword .............................................................................................................................................5

Introduction .........................................................................................................................................................6

1 Scope ......................................................................................................................................................7

2 Normative references ............................................................................................................................8

3 Terms and definitions ...........................................................................................................................8

4 Symbols and abbreviations ............................................................................................................... 11

5 Design requirements .......................................................................................................................... 11

5.1 General requirements ......................................................................................................................... 11

5.2 Construction ........................................................................................................................................ 11

5.3 Visual indicators ................................................................................................................................. 12

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 ............................................................................................................... 13

5.5.4 End-of-life fault warnings ................................................................................................................... 13

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 ................................................................................................................................... 15

5.10.4 Battery connections ........................................................................................................................... 15

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 ............................................................................................................... 18

6.2.1 General ................................................................................................................................................. 18

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 ............................................................................................................................................... 19

6.3 Test methods and performance requirements ................................................................................ 19

6.3.1 General ................................................................................................................................................. 19

6.3.2 Transmittable output signal ............................................................................................................... 19

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6.3.3 Alarm set point .................................................................................................................................... 19

6.3.4 Alarm during warm-up time ................................................................................................................ 19

6.3.5 Response time ..................................................................................................................................... 20

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) .......................................................... 21

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 .......................................................................................................................................... 23

6.3.15 Refrigerant poisoning and oil spray test (for Type C apparatus only) .......................................... 23

6.3.16 Alarm sound level ................................................................................................................................ 24

6.3.17 Degree of protection ........................................................................................................................... 24

6.3.18 Mechanical strength ............................................................................................................................ 25

6.3.19 Stability in high humidity test (for type C apparatus) ...................................................................... 25

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 ............................................................................................................................. 26

7.1.4 Identification codes ............................................................................................................................. 26

7.1.5 Environmental requirements .............................................................................................................. 26

7.2 Radio link tests .................................................................................................................................... 26

7.2.1 RF Range .............................................................................................................................................. 26

7.2.2 Failure of radio link tests .................................................................................................................... 27

7.2.3 Identification codes verification tests ............................................................................................... 27

7.2.4 Environmental tests ............................................................................................................................ 27

8 Self-contained battery powered apparatus ....................................................................................... 28

8.1 Battery fault warning ........................................................................................................................... 28

8.1.1 General ................................................................................................................................................. 28

8.1.2 Test ....................................................................................................................................................... 28

8.1.3 Performance requirements ................................................................................................................. 28

8.2 Battery capacity ................................................................................................................................... 28

8.2.1 General ................................................................................................................................................. 28

8.2.2 Assessment ......................................................................................................................................... 28

8.2.3 Performance requirements ................................................................................................................. 28

8.3 Battery reversal ................................................................................................................................... 29

8.3.1 General ................................................................................................................................................. 29

8.3.2 Test ....................................................................................................................................................... 29

8.3.3 Performance requirements ................................................................................................................. 29

8.4 Battery connections with flexible leads only.................................................................................... 29

8.4.1 General ................................................................................................................................................. 29

8.4.2 Test ....................................................................................................................................................... 29

8.4.3 Performance requirements ................................................................................................................. 29

8.5 Back-up power source ........................................................................................................................ 29

8.5.1 Objective............................................................................................................................................... 29

8.5.2 Test ....................................................................................................................................................... 30

8.5.3 Performance requirements ................................................................................................................. 30

9 User instructions ................................................................................................................................. 30

9.1 General ................................................................................................................................................. 30

9.2 Instructions for equipment with replaceable sensor ....................................................................... 31

9.3 Instructions on location of the gas detection apparatus ................................................................ 31

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9.4 Instructions on emergency actions .................................................................................................. 32

10 Packaging ............................................................................................................................................ 32

Annex A (informative) Test arrangement schematics for sound level test .............................................. 34

Annex B (informative) Calculation of the expected battery service life .................................................... 35

B.1 General requirements ......................................................................................................................... 35

B.2 Example ............................................................................................................................................... 35

Annex C (informative) Clarification of the Type A, Type B, Type C and Type D apparatus.................... 37

Bibliography ..................................................................................................................................................... 38

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oSIST prEN 50194-1:2023
prEN 50194-1:2022 (E)
European foreword

This document (prEN 50194-1:2022) has been prepared by Technical Committee CLC/TC 216 “Gas detectors”,

the secretariat of which is held by BSI.
The following dates are proposed:
• latest date by which the existence of this (doa) dor + 6 months
document has to be announced at national
level
• latest date by which this document has to be (dop) dor + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dor + 36 months
conflicting with this document have to be (to be confirmed or
withdrawn modified when voting)

This document will supersede EN 50194-1:2009 and all of its amendments and corrigenda (if any).

prEN 50194-1:2022 includes the following significant technical changes with respect to EN 50194 −1:2009:

Description Clause
This document has been completely revised following the structure of All
EN 50291-1:2018

End of Life indicator has been made mandatory and shall include an audible and 5.5

visible warning
Guidance has been added for assessing battery capacity and expected life 8.2
Requirements for mains powered alarms with back-up supply have been added 8.5
The number of potential interference gases has been increased
Tests have been added for an optional alarm silence facility
Requirements have been added for apparatus using radio links 7
Added requirements for the use of batteries 5.10
Annex B has been added Annex B
New requirement to comply with EN 50271 Standard for software 5.8
Defined type C apparatus for refrigerant gases 1
Bibliography has been added
Annex C “A-deviations” has been removed

Tests for stability in high humidity (non-condensing) and low humidity for Type C 6.3.19 and 6.3.20

apparatus has been added
Ignition test for Hydrogen and Type C apparatus has been added 6.3.14

Tests for refrigerant poisoning and oil spray for Type C apparatus has been 6.3.15

added
Revision of the Normative references 2
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oSIST prEN 50194-1:2023
prEN 50194-1:2022 (E)
Introduction

This document defines test methods and performance requirements for all electrical gas detection equipment

used in residential and household applications by means of measurement of one or more threshold alarm levels.

It is addressed to the manufacturers of such equipment and test laboratories which validate it.

This document is an updated revision of the previous EN 50194-1 issued in 2009 and includes some new

concepts of detection:

The term of “domestic” has been implemented in “household premises” in order to include further applications,

i.e. shops, offices, hotel rooms, residential premises and in general where household appliances are installed

(as defined in IEC/EN 60335-1).

This document implements a new range of the flammable gases to be detected. In the premises within the

scope of this document, also flammable refrigerant gases, R-717 (Ammonia) at LFL level and Hydrogen in fuel

cells applications may be present and are thus necessary to consider.

Finally, the document structure has been completely revised in order to align this revision with the similar

standard EN 50291-1:2018 for Carbon Monoxide and other new standards concerning digital and software

technologies.
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prEN 50194-1:2022 (E)
1 Scope

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 operate 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, in the form of detection system,

system regularly maintained by competent persons and/or with protection IP44 or higher.

For type D equipment, 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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oSIST prEN 50194-1:2023
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2 Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes

requirements 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 437:2021, Test gases. Test pressures. Appliance categories

EN 1775, Gas supply - Gas pipework for buildings - Maximum operating pressure less than or equal to 5 bar -

Functional recommendations

EN 50244, Electrical apparatus for the detection of combustible gases in domestic premises - Guide on the

selection, installation, use and maintenance

EN 50270, Electromagnetic compatibility - Electrical apparatus for the detection and measurement of

combustible gases, toxic gases or oxygen

EN 50271, 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

EN 60335-1:2002, Household and similar electrical appliances - Safety - Part 1: General requirements

EN 60335-1:2012, Household and similar electrical appliances – Safety - Part 1: General requirements

IEC 60335-2-40:2022, Household and similar electrical appliances. Safety - Part 2-40: Particular requirements

for electrical heat pumps, air-conditioners and dehumidifiers

EN 60529:1991, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989)

EN 60704-1:2010, Household and similar electrical appliances - Test code for the determination of airborne

acoustical noise - Part 1: General requirements (IEC 60704-1:2010)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
ambient conditions
normal atmosphere surrounding the apparatus
3.2
clean air

air which is free from combustible gases, interfering and contaminating substances

3.3
non-explosive atmosphere premises

apparatus intended for use in residential, commercial and light-industrial environments, as described in

EN 61000-6-1 and EN 61000-6-3
3.3.1
household premises

any house or building being a place of residence or home of a household, family or person

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3.4
fixed installation

apparatus which is intended to have all parts except replaceable batteries permanently installed

3.5
latching alarm
alarm which, once activated, requires deliberate action for resetting
3.6
lower flammable limit
LFL

volume ratio of flammable gas or vapour in air below which an explosive gas atmosphere will not be formed

Note 1 to entry: Annex B of EN ISO/IEC 80079
...

SLOVENSKI STANDARD
oSIST prEN 50194-1:2022
01-marec-2022
Električne naprave za zaznavanje vnetljivih plinov v gospodinjskih in
neindustrijskih okoljih - 1. del: Preskusne metode in zahtevane lastnosti

Electrical apparatus for the detection of flammable gases in household and non-industrial

premises - Part 1: Test methods and performance requirements
Ta slovenski standard je istoveten z: prEN 50194-1
ICS:
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
oSIST prEN 50194-1:2022 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 50194-1:2022
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oSIST prEN 50194-1:2022
EUROPEAN STANDARD DRAFT
prEN 50194-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2022
ICS 13.320 Will supersede EN 50194-1:2009 and all of its
amendments and corrigenda (if any)
English Version
Electrical apparatus for the detection of flammable gases in
household and non-industrial premises - Part 1: Test methods
and performance requirements
To be completed To be completed
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2022-04-08.
It has been drawn up by CLC/TC 216.