BS EN 50291-1:2018 – TC:2020 Edition
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Tracked Changes. Gas detectors. Electrical apparatus for the detection of carbon monoxide in domestic premises – Test methods and performance requirements
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 98 |
This European Standard specifies general requirements for the construction, testing and performance of electrically operated carbon monoxide gas detection apparatus, designed for continuous operation in domestic premises. The objective is to detect defective fossil fuel or solid fuel appliances so that they can be repaired or replaced. The function of the standard is not to monitor low levels of CO for health purposes. (Annex F gives recommendations for units displaying low (warning) CO concentrations). The apparatus may be mains-powered or battery-powered. Such apparatus is intended to warn of an acute level of CO, enabling the occupant to react before being exposed to significant risk. Additional requirements for apparatus to be used in recreational vehicles and similar premises are specified in EN 50291-2. NOTE 1 For caravan holiday homes EN 50291-1 applies. This European Standard specifies two types of apparatus, these are: – type A – to provide a visual and audible alarm and an executive action in the form of a transmittable output signal that can be used to actuate directly or indirectly a ventilation or other ancillary device; – type B – to provide a visual and audible alarm only. NOTE 2 Both type A and type B apparatus can be interconnected. This European Standard excludes apparatus for: – the detection of combustible gases, other than carbon monoxide itself (see EN 50194-1); – the detection of CO in industrial installations (see EN 45544-1, EN 45544-2 and EN 45544-3) or commercial premises; – CO measurement for smoke and fire detection; – CO measurement in carparks and tunnels. NOTE 3 See EN 50545-1.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 56 | undefined |
| 62 | 1 Scope 2 Normative references |
| 63 | 3 Terms and definitions |
| 65 | 4 Symbols and abbreviations 5 Design requirements 5.1 General requirements |
| 66 | 5.2 Construction 5.3 Visual indicators |
| 67 | 5.4 Alarms 5.5 End-of-life 5.5.1 General 5.5.2 Prediction of end-of-life |
| 68 | 5.5.3 Inbuilt testing of end-of-life 5.5.4 End of life fault warnings 5.6 Fault warnings 5.7 Alarm silence facility (optional) |
| 69 | 5.8 Fault warning silence facility 5.9 Transmittable output signal (applicable for type A apparatus only) 5.10 Software-controlled apparatus 5.11 Labelling |
| 70 | 5.12 Requirements for the use of batteries 5.12.1 Battery low voltage warning 5.12.2 Battery capacity |
| 71 | 5.12.3 Battery reversal 5.12.4 Battery connections 5.12.5 Battery removal feature 5.13 Inter-connectable apparatus 5.14 Back-up power source 5.14.1 General |
| 72 | 5.14.2 Monitoring of back-up power source 6 Test and performance requirements 6.1 General requirements for tests 6.1.1 Test samples for type testing |
| 73 | 6.1.2 Preparation of samples 6.1.3 Use of mask for testing 6.1.4 Test chamber 6.1.5 Unpowered storage 6.2 Normal conditions for tests 6.2.1 General |
| 74 | 6.2.2 Test gases for alarm testing 6.2.3 Test gases for specified tests 6.2.4 Speed of air and test gas 6.2.5 Power supply 6.2.6 Temperature 6.2.7 Humidity 6.2.8 Pressure 6.3 Test methods and performance requirements 6.3.1 General |
| 75 | 6.3.2 CO gas test 6.3.3 Transmittable output signal 6.3.3.1 Test |
| 76 | 6.3.3.2 Performance requirement 6.3.4 Alarm conditions 6.3.4.1 Test 6.3.4.2 Performance requirement 6.3.5 Alarm during warm-up time 6.3.5.1 Test 6.3.5.2 Performance requirements 6.3.6 Response and recovery to a high CO volume ratio 6.3.6.1 Test 6.3.6.2 Performance requirement |
| 77 | 6.3.7 Temperature effects 6.3.7.1 Test 6.3.7.2 Performance requirement 6.3.8 Humidity effects 6.3.8.1 Test 6.3.8.2 Performance requirement 6.3.9 Air velocity test 6.3.9.1 Test 6.3.9.2 Performance requirement 6.3.10 Supply voltage variations (mains powered apparatus only) 6.3.10.1 Test 6.3.10.2 Performance requirement 6.3.11 Electromagnetic compatibility 6.3.11.1 Test |
| 78 | 6.3.11.2 Performance requirements 6.3.12 Response to mixtures of carbon monoxide and other gases 6.3.12.1 General 6.3.12.2 Test 6.3.12.3 Performance requirement 6.3.13 Effects of other gases 6.3.13.1 Test |
| 79 | 6.3.13.2 Performance requirement 6.3.14 Long term stability 6.3.14.1 Test 6.3.14.2 Performance requirement 6.3.15 Drop test 6.3.15.1 Test |
| 80 | 6.3.15.2 Performance requirements 6.3.16 Alarm sound level 6.3.17 Battery fault warning 6.3.17.1 Test |
| 81 | 6.3.17.2 Performance requirements 6.3.18 Battery capacity 6.3.18.1 Assessment 6.3.18.2 Performance requirements 6.3.19 Battery reversal 6.3.19.1 Test |
| 82 | 6.3.19.2 Performance requirements 6.3.20 Battery connections with flexible leads only 6.3.20.1 Test 6.3.20.2 Performance requirements 6.3.21 Inter-connectable apparatus 6.3.21.1 Test procedure 6.3.21.2 Performance requirements |
| 83 | 6.3.22 Back-up power source 6.3.22.1 Objective 6.3.22.2 Test procedure 6.3.23 Stability in high humidity (non- condensing) test 6.3.23.1 Test 6.3.23.2 Performance requirements 6.3.24 Stability to low humidity test 6.3.24.1 Test |
| 84 | 6.3.24.2 Performance requirements 7 Apparatus using radio links 7.1 General 7.1.1 RF range and reproducibility tests 7.1.2 Failure of radio link 7.1.3 Identification codes 7.1.4 Environmental requirements 7.2 Radio link tests 7.2.1 RF Range 7.2.1.1 Transmission power test procedure |
| 85 | 7.2.1.2 Receiver test 7.2.2 Failure of radio link tests 7.2.2.1 General 7.2.2.2 Requirements 7.2.3 Identification codes verification tests 7.2.4 Environmental tests 7.2.4.1 Procedure |
| 86 | 7.2.4.2 Requirements 8 User instructions |
| 87 | 9 Packaging |
| 88 | Annex A (informative)Extended stability test – Sample protocol A.1 General requirements A.2 Test A.3 Performance requirement |
| 89 | Annex B (informative)Calculation of the expected battery service life B.1 General requirements B.2 Example B.2.1 Capacity required for 1 year operation in milli Ampere hours (mAh) B.2.2 Capacity required for 4 min alarm B.2.3 Capacity required for 30 days low battery beeping B.2.4 Carbon Monoxide Alarm Voltage Operating Range |
| 90 | B.2.5 Battery Data B.2.6 Expected Service Life |
| 91 | Annex C (informative)Visual and audible fault indication sequences |
| 92 | Annex D (informative)A–deviations |
| 93 | Annex E (informative)Test arrangement schematics |
| 95 | Annex F (informative)Additional requirements for units displaying low (warning) CO concentrations F.1 General F.2 Requirements |
