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BS EN 50244:2016 – TC:2020 Edition

BS EN 50244:2016 – TC:2020 Edition

$134.27

Tracked Changes. Electrical apparatus for the detection of combustible gases in domestic premises. Guide on the selection, installation, use and maintenance

Published By Publication Date Number of Pages
BSI 2020 43
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This draft 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. The draft 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: – 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; – Type B apparatus – to provide visual and audible alarms only. This guide is not applicable to the use of apparatus: – for the detection of toxic gases such as carbon monoxide, see EN 50292; – for industrial or commercial premises, see EN 60079-29-2.

PDF Catalog

PDF Pages PDF Title
27 Contents Page
28 European foreword
29 Introduction
30 1 Scope
2 Normative references
3 Terms and definitions
31 4 Sensing of combustible gas
32 5 Types of apparatus
33 6 Installation
6.1 General
6.2 Gas releases
6.2.1 General
6.2.2 Source of the gas escape
34 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
35 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
36 Figure 1 — Typical detector location for natural gas or town gas installations
Figure 2 — Typical detector location for LPG installations
37 6.2.4.5 Special Considerations for Recreational Vehicles
6.3 Remote Detector Heads
6.4 Mains power supply
38 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
39 8 Advice to the user
8.1 Manufacturer’s instructions
8.2 Location
8.3 Power supply
8.4 Indicators
8.5 Alarms
40 8.6 Maintenance
8.7 Lifetimes
9 Emergency actions
41 Bibliography

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BS EN 50244:2016 - TC
$134.27