Norm

NEN-EN 50402:2013 Ontw. en

Elektrisch materieel voor de detectie en meting van brandbare of giftige gassen, dampen of zuurstof - Eisen aan de functionele veiligheid van vast opgestelde gasdetectiesystemen

46,90

Over deze norm

Status Ontwerp
Aantal pagina's 85
Commissie Elektrisch materieel i.v.m. ontploffingsgevaar
Gepubliceerd op 01-06-2013
Taal Engels
This European Standard is applicable to fixed gas detection systems for the detection and measurement of flammable or toxic gases or vapours or oxygen. This European Standard supplements the requirements of the European Standards for electrical apparatus for the detection and measurement of flammable gases, vapours (e.g. EN 60079-29-1 or EN 60079-29-4), toxic gases (e.g. EN 45544) or oxygen (e.g. EN 50104). Applying the above-mentioned metrological standards will ensure the measuring performance is adequate in normal operation of a gas detection system. Additionally the requirements of this European Standard address the functional safety of gas detection systems and encompass criteria for reliability, fault tolerance and avoidance of systematic faults. This European Standard will lead to the characterisation of the gas detection system by a SIL-capability and related hardware failure rate representing a hierarchical order of safety levels. This will allow the user to incorporate the gas detection system into an overall safety system according to the safety integrity levels of EN 61508 (all parts). This European Standard is a product standard which is based on EN 61508 (all parts) and for gas detection systems covers SIL capabilities of 1, 2 or 3 only. It covers part of the phase 10 “realisation” of the overall safety lifecycle defined in Figure 2 of EN 61508-1:2010. This European Standard is applicable for gas detection systems, which may consist of the following functional units: - gas-sampling; - sensor; - signal transmission; - input to control unit; - signal processing in control unit; - output from control unit.

Details

ICS-code 13.320
Nederlandse titel Elektrisch materieel voor de detectie en meting van brandbare of giftige gassen, dampen of zuurstof - Eisen aan de functionele veiligheid van vast opgestelde gasdetectiesystemen
Engelse titel Electrical apparatus for the detection and measurement of combustible or toxic gases or vapours or of oxygen - Requirements on the functional safety of fixed gas detection systems
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