This European Standard provides information on the selection, installation, use and maintenance of apparatus for the detection of combustible gas designed for continuous operation in a fixed installation in domestic premises as described in the EN 50194 series. This guide should be read in conjunction with any additional relevant national or local regulations.<\/p>\n
The European Standard refers to the installation of two types of apparatus designed to operate in the event of an escape of town gas, natural gas or liquefied petroleum gas:<\/p>\n
Type A apparatus – to provide a visual and audible alarm and an executive action in the form of an output signal that may actuate directly or indirectly a shut-off device and\/or other ancillary device;<\/p>\n<\/li>\n
Type B apparatus – to provide visual and audible alarms only.<\/p>\n<\/li>\n<\/ul>\n
This guide is not applicable to the use of apparatus:<\/p>\n
for the detection of toxic gases such as carbon monoxide, see EN 50292;<\/p>\n<\/li>\n
for industrial or commercial premises, see EN 60079-29-2.<\/p>\n<\/li>\n<\/ul>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 4<\/td>\n | Contents Page <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | European foreword <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | Introduction <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | 4 Sensing of combustible gas <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 5 Types of apparatus <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 6 Installation 6.1 General 6.2 Gas releases 6.2.1 General 6.2.2 Source of the gas escape <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 6.2.3 Examples of behaviour of gas releases 6.2.3.1 Room having poor or no ventilation 6.2.3.2 Ventilated room 6.2.3.3 Multiple rooms <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 6.2.4 Positioning of the gas detector 6.2.4.1 General 6.2.4.2 Natural Gas and Town Gas 6.2.4.3 LPG 6.2.4.4 Both Device Types <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | Figure 1 \u2014 Typical detector location for natural gas or town gas installations Figure 2 \u2014 Typical detector location for LPG installations <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 6.2.4.5 Special Considerations for Recreational Vehicles 6.3 Remote Detector Heads 6.4 Mains power supply <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 7 Executive functions (type A apparatus only) 7.1 General 7.2 Shut-off valve 7.3 Ventilation fan 7.4 Main electric switch 7.5 Remote alarm 7.6 Additional visual alarm 7.7 Link between detector and ancillary device 7.8 Fault relays <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 8 Advice to the user 8.1 Manufacturer’s instructions 8.2 Location 8.3 Power supply 8.4 Indicators 8.5 Alarms <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 8.6 Maintenance 8.7 Lifetimes 9 Emergency actions <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Electrical apparatus for the detection of combustible gases in domestic premises. Guide on the selection, installation, use and maintenance<\/b><\/p>\n |