SIST EN 50292:2002
(Main)Electrical apparatus for the detection of carbon monoxide in domestic premises - Guide on the selection, installation, use and maintenance
Electrical apparatus for the detection of carbon monoxide in domestic premises - Guide on the selection, installation, use and maintenance
This guide provides information on the selection, installation, use and maintenance of apparatus for the detection of carbon monoxide, intended for continuous operation in domestic premises. It should be read in conjunction with EN 50291, together with any additional relevant national or local regulations.
The guide refers to the installation of two types of apparatus:
Type A apparatus - to provide a visual and audible alarm and an executive action in the form of an output signal that can be used to actuate directly or indirectly a ventilation or other ancillary device.
Type B apparatus - to provide a visual and audible alarm only.
This guide excludes apparatus:
• for the detection of combustible gases (see EN 50244);
• for industrial installations or commercial premises;
• for use in boats, caravans or mobile homes.
Elektrische Geräte für die Detektion von Kohlenmonoxid in Wohnhäusern - Leitfaden für Auswahl, Installation, Benutzung und Instandhaltung
Dieser Leitfaden enthält Informationen über die Auswahl, die Installation, die Benutzung und die Instandhaltung von Geräten für die Detektion von Kohlenmonoxid, die für den Dauerbetrieb in Wohnhäusern bestimmt sind. Er sollte in Verbindung mit der EN 50291 und mit allen notwendigen ergänzenden nationalen oder örtlichen Vorschriften gelesen werden.
Dieser Leitfaden bezieht sich auf die Installation von zwei Typen von Geräten:
- Geräte des Typs A - um optisch und akustisch zu alarmieren und ein Ausgangssignal auszulösen, das zum direkten oder indirekten Einschalten einer Lüftung oder zur Auslösung einer anderen Hilfseinrichtung verwendet werden kann.
- Geräte des Typs B - um nur optisch und akustisch zu alarmieren.
Dieser Leitfaden schließt Geräte aus:
- für die Detektion von brennbaren Gasen (siehe EN 50244);
- für industrielle Einrichtungen oder für Geschäftsräume;
- zur Verwendung in Booten, Wohnwagen oder Wohnmobilen.
Appareils électriques pour la détection de monoxyde de carbone dans les locaux à usage domestique - Guide de sélection, d'installation, d'utilisation et de maintenance
Ce guide fournit des informations sur la sélection, l'installation, l'utilisation et la maintenance des appareils de détection de monoxyde de carbone, prévus pour un fonctionnement continu, dans les locaux à usage domestique. Il convient de le lire en complément de la Norme Européenne EN 50291, et de toutes réglementations nationales ou locales additionnelles concernées.
Le guide se réfère à l'installation de deux types d'appareils:
– Appareils de Type A – pour fournir une alarme visuelle et auditive et une action d'exécution sous forme d'un signal de sortie qui peut être utilisé pour actionner directement ou indirectement une ventilation ou encore tout autre dispositif auxiliaire.
– Appareils de Type B - pour fournir une alarme visuelle et auditive uniquement.
Ce guide exclut les appareils:
• de détection de gaz combustibles (voir EN 50244);
• pour installations industrielles ou locaux à usage commercial;
• utilisés à bord de bateaux, dans les caravanes, y compris les caravanes résidentielles.
Electrical apparatus for the detection of carbon monoxide in domestic premises – Guide on the selection, installation, use and maintenance
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Electrical apparatus for the detection of carbon monoxide in domestic premises – Guide on the selection, installation, use and maintenanceElektrische Geräte für die Detektion von Kohlenmonoxid in Wohnhäusern - Leitfaden für Auswahl, Installation, Benutzung und InstandhaltungAppareils électriques pour la détection de monoxyde de carbone dans les locaux à usage domestique - Guide de sélection, d'installation, d'utilisation et de maintenanceElectrical apparatus for the detection of carbon monoxide in domestic premises - Guide on the selection, installation, use and maintenance13.320Alarmni in opozorilni sistemiAlarm and warning systemsICS:Ta slovenski standard je istoveten z:EN 50292:2001SIST EN 50292:2002en01-april-2002SIST EN 50292:2002SLOVENSKI
STANDARD
SIST EN 50292:2002
EUROPEAN STANDARDEN 50292NORME EUROPÉENNEEUROPÄISCHE NORMOctober 2001CENELECEuropean Committee for Electrotechnical StandardizationComité Européen de Normalisation ElectrotechniqueEuropäisches Komitee für Elektrotechnische NormungCentral Secretariat: rue de Stassart 35, B - 1050 Brussels© 2001 CENELEC -All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.Ref. No. EN 50292:2001 EICS 13.320English versionElectrical apparatus for the detection of carbon monoxidein domestic premises -Guide on the selection, installation,use and maintenanceAppareils électriques pour la détectionde monoxyde de carbone dans leslocaux à usage domestique -Guide de sélection, d'installation,d'utilisation et de maintenanceElektrische Geräte für die Detektion vonKohlenmonoxid in Wohnhäusern -Leitfaden für Auswahl, Installation,Benutzung und InstandhaltungThis European Standard was approved by CENELEC on 2001-03-01. CENELEC members are bound tocomply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving thisEuropean Standard the status of a national standard without any alteration.Up-to-date lists and bibliographical references concerning such national standards may be obtained onapplication to the Central Secretariat or to any CENELEC member.This European Standard exists in three official versions (English, French, German). A version in anyother language made by translation under the responsibility of a CENELEC member into its ownlanguage and notified to the Central Secretariat has the same status as the official versions.CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands,Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.SIST EN 50292:2002
EN 50292:2001- 2 -ForewordThis European Standard was prepared by the Technical Committee CENELEC TC 216, Gasdetectors.The text of the draft was submitted to the formal vote and was approved by CENELEC asEN 50292 on 2001-03-01.The following dates were fixed:-latest date by which the EN has to be implementedat national level by publication of an identicalnational standard or by endorsement(dop)2002-04-01-latest date by which the national standards conflictingwith the EN have to be withdrawn(dow)2004-04-01Annexes designated "normative" are part of the body of the standard. Annexes designated"informative" are given for information only. In this standard, annexes A and B are informative.___________SIST EN 50292:2002
- 3 -EN 50292:2001Contents1Scope.42Normative references.43Definitions.54Sources of carbon monoxide.64.1General information.64.2Normal exposure levels.64.3Burning of carbonaceous materials for heating and cooking.64.4Uncontrolled burning.74.5Tobacco smoking.74.6Internal combustion engines.74.7Multi-occupancy and multi-storey buildings.75Installation.85.1General.85.2Location of the carbon monoxide detector.85.3Types of apparatus.106Executive functions (type A apparatus only).106.1General.106.2Shut-off valve.106.3Ventilation fan.106.4Main electrical switch.116.5Remote alarm.116.6Additional visual alarm.116.7Link between detector and ancillary device.117Advice to the user.117.1Manufacturer’s instructions.117.2Location.117.3Power supply.117.4Indicators.127.5Alarms.127.6Maintenance.127.7Lifetimes.128Emergency actions.12Annex A (informative)
Health effects.14A.1 Toxic effects.14A.2Chronic effects on high risk groups.15A.3Normal COHb levels.15A.4Tobacco smoking.15Annex B (informative)
Philosophy of setting alarm points.16SIST EN 50292:2002
EN 50292:2001- 4 -IntroductionThis European Standard is intended to be a guide for people who, in the course of theirprofessional activities, are required to install apparatus for the detection of carbonmonoxide (CO) in domestic premises. It is also aimed at anyone who might supply suchdetectors to members of the public for subsequent installation according to nationalregulations, so that advice may be given based on good engineering practice.Apparatus for the detection of carbon monoxide are not a substitute for good installationand regular servicing of fuel burning appliances or regular cleaning of chimneys, althoughthey may provide an added margin of reassurance for users. Domestic carbon monoxidedetectors with or without some form of executive function may overcome fears of fuelsafety and may be particularly beneficial in certain circumstances.It is necessary to understand that carbon monoxide toxicity may have differentconsequences according to the physical condition of the individual. Thus, a carbonmonoxide detector designed according to EN 50291 may not fully safeguard individuals withspecific medical conditions.Carbon monoxide detectors are not intended to be used as an alternative to a smoke alarm.1 ScopeThis guide provides information on the selection, installation, use and maintenance ofapparatus for the detection of carbon monoxide, intended for continuous operation indomestic premises. It should be read in conjunction with EN 50291, together with anyadditional relevant national or local regulations.The guide refers to the installation of two types of apparatus:Type A apparatus - to provide a visual and audible alarm and an executive action in theform of an output signal that can be used to actuate directly or indirectly a ventilation orother ancillary device.Type B apparatus - to provide a visual and audible alarm only.This guide excludes apparatus: for the detection of combustible gases (see EN 50244); for industrial installations or commercial premises; for use in boats, caravans or mobile homes.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from otherpublications. These normative references are cited at the appropriate places in the text and thepublications are listed hereafter. For dated references, subsequent amendments to or revisions of anyof these publications apply to this European Standard only when incorporated in it by amendment orrevision. For undated references the latest edition of the publication referred to applies.EN 502442000Electrical apparatus for the detection of combustible gases indomestic premises - Guide on the selection, installation, use andmaintenanceEN 502912001Electrical apparatus for the detection of carbon monoxide indomestic premises - Test methods and performance requirementsSIST EN 50292:2002
- 5 -EN 50292:2001EN 1775 1998Gas supply - Gas pipework for buildings - Maximum operatingpressure
5 bar - Functional recommendations3 DefinitionsFor the purposes of this guide the following definitions apply:3.1domestic premisesany house or building, or part thereof, being the place of residence or home of a household,family or person3.2fixed installationan apparatus which is intended to have all parts except replaceable batteries permanentlyinstalled3.3latching alarman apparatus which, once activated, requires deliberate action for deactivation3.4sensoran assembly in which the sensing element is housed that may contain associated circuitcomponent3.5sensing elementa device, the output of which will change in the presence of carbon monoxide3.6continuous operationapparatus which is continuously powered with continuous or intermittent automatic sensing3.7gas detection apparatusapparatus, which may also be generically termed “gas detector”, comprising the sensor,remote sensor if applicable, alarm and any other circuit components, power supply and, fortype A apparatus, a means of providing an output signal3.8volume ratio (V/V)(commonly referred to as concentration)ratio of the volume of carbon monoxide to the volume of the gas mixture; often expressedin units of parts per million (ppm)3.9output signala signal characterised by a standby and an activation state, by which action may beinitiated. In many cases, such action will entail triggering an ancillary device3.10warm-up timethe time interval between the time when the apparatus is switched on and the time when theapparatus is fully operationalSIST EN 50292:2002
EN 50292:2001- 6 -3.11alarm set pointa fixed setting of the apparatus that determines the volume ratio and duration of exposureat which the apparatus will automatically initiate an alarm and, for type A apparatus, anoutput signal3.12fault signala visual, audible or other type of output indicating a faulty or failed apparatus3.13mains-powered apparatusan apparatus designed to be powered by the normal domestic mains electrical supply, withor without an additional power source3.14battery-powered apparatusan apparatus designed to be powered by batteries only4 Sources of carbon monoxide4.1 General informationCarbon monoxide is a colourless, odourless, non-irritating gas which is classified as achemical asphyxiant, whose toxic action is a direct result of the hypoxia produced by agiven exposure (see annexes A and B).4.2 Normal exposure levelsCarbon monoxide may be generated within the home or enter from outside. The normalaverage background levels of carbon monoxide in domestic premises, measured overperiods of 1 h to 24 h is less than 10 ppm. In cases of climatic inversion, higher levels ofcarbon monoxide are possible.4.3 Burning of carbonaceous materials for heating and cookingMost of the carbon monoxide in the environment is produced during combustion ofcarbonaceous material, e.g. solid fuels (such as coal, coke and wood), liquid fuels (such asoil and petrol) and gaseous fuels (such as natural gas, town gas and liquified petroleum gas(LPG)).It should be noted that town gas may contain a significant proportion of carbon monoxideprior to combustion.The proportion and constituents of the combustion products from carbonaceous fuels willdepend on the particular fuel and the combustion conditions.Varying concentrations of carbon monoxide are produced from most combustion processes.Exhaust gases from burning solid and liquid fuels may contain significant concentrations ofcarbon monoxide: levels of 20 000 ppm - 50 000 ppm (2 % - 5 %) are not unexpected.Efficient burning of natural gas and LPG in well-designed burners in an excess of air will notproduce significant flue concentrations of carbon monoxide, usually in the range 10 ppm -200 ppm. However, poorly maintained and inefficient burners can produce considerablyhigher levels of carbon monoxide.SIST EN 50292:2002
- 7 -EN 50292:2001Flue reversal may occur under certain climatic conditions with appliances using combustionair taken from within the premises. This is a temporary phenomenon which may occur withcertain types of appliance, even when correctly maintained.4.3.1 Space and water heatingSolid, liquid and gaseous fuels may be used for space and water heating. They are used ina variety of ways, either as a local heat source or a remote central heat source, including: appliance with flue using room air; appliance without flue using room air; appliance with flue using external air.In defective warm air systems, carbon monoxide may be distributed into remote rooms.4.3.2 CookingNatural gas, town gas or LPG are the main fuels for cooking, generally using unfluedappliances.
In some cases, solid fuels are used in appliances which are fitted with flues.It should be emphasised that barbecue grills using charcoal, emit very high amounts ofcarbon monoxide and should only be used outdoors.4.4 Uncontrolled burningCarbon monoxide is a major gaseous product from fires resulting from uncontrolled burningof carbonaceous material. Varying concentrations of carbon monoxide are produced,depending on the material, burning conditions, etc.4.5 Tobacco smokingSmoking produces a significant concentration of carbon monoxide.4.6 Internal combustion enginesA major source of carbon monoxide in the non-industrial environment is the combustionengine. The concentration of carbon monoxide in exhaust gas is normally in the range 1 % -3 % but may reach 7 % in a badly maintained or badly tuned engine.The exhaust gases from internal combustion engines (vehicles or electricity generators forexample) running in an enclosed space will quickly produce dangerous levels of carbonmonoxide.4.7 Multi-occupancy and multi-storey buildingsIn multi-occupancy and multi-storey buildings, carbon monoxide produced in one area maybe transported to and leak into another part of the building, e.g. across roof spaces,between floors, along ducting and in shared flues.SIST EN 50292:2002
EN 50292:2001- 8 -5 Installation5.1 GeneralThe manufacturer is required to provide suitable instructions for the correct and safeinstallation of the apparatus. These should be read carefully before installing or operatingthe apparatus. Clause 8 lists additional items which should be considered, if appropriate.Generally, the same considerations apply to both type A and type B apparatus.5.2 Location of the carbon monoxide detector5.2.1 GeneralThe design and layout of domestic premises and the number, type and position of carbonmonoxide sources vary widely. However, general guidance is given on where and where notto locate the apparatus in order to minimise the risk of misleading indications.5.2.2 Which room?Ideally, an apparatus should be installed in every room containing a fuel burning appliance.Additional apparatus may be installed to ensure that adequate warning is given foroccupants in other rooms, by locating apparatus in:-remote rooms in which the occupant(s) spend considerable time whilst awake and fromwhich they may not be able hear an alarm from apparatus in another part of thepremises, and-every sleeping room.However, if there is a fuel burning appliance in more than one room and the number ofapparatus is limited, the following points should be considered when deciding where best toput the apparatus:-locate the apparatus in a room containing a flueless or open-flued appliance, and-locate apparatus in a room where the occupant(s) spend most time.If the domestic premises is a bedsit (a single room serving as both sitting and bedroom)then the apparatus should be put as far from the cooking appliances as possible but near towhere the person sleeps.If the appliance is in a room not normally used (for example a boiler room), the apparatusshould be put just outside the room so that the alarm may be heard more easily.Alternatively, a remote alarm siren may be connected to a type A apparatus located in aroom(s) containing a fuel-burning appliance.5.2.3 Where in the room?It should be possible to view all the light indicators when in the vicinity of the chosenlocation for the apparatus.It is not possible to give specific guidance on the exact location of a detector which suits alltypes of room and their usage.
The following points should be taken into considerationwhen determining an optimum location for any appropriate situation:SIST EN 50292:2002
- 9 -EN 50292:20015.2.3.1 Where not to install the apparatusThe apparatus should not be installed: in an enclosed space (for example in a cupboard or behind a curtain); where it can be obstructed (for example by furniture); directly above a sink; next to a door or window; next to an extractor fan; next to an air vent or other similar ventilation openings; in an area where the temperature may drop below - 10 oC or exceed 40 oC, unless it isdesigned to do so; where dirt and dust may block the sensor; in a damp or humid location; in the immediate vicinity of the cooking appliance.5.2.3.2 Apparatus located in the same room as a fuel-burning applianceIf the apparatus is located on a wall:a) it should be located close to the ceiling;b) it should be located at a height greater than the height of any door or window.A ceiling mounted apparatus should be at least 300 mm from any wall, and for a wallmounted apparatus it should be at least 150 mm from the ceiling.The apparatus should be at
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