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EN 50057:1998

(Main)

Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for Group II apparatus indicating up to 100 % lower explosive limit

Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for Group II apparatus indicating up to 100 % lower explosive limit

This European Standard specifies performance requirements for Group II (as defined in EN 50054) portable, transportable and fixed apparatus for the detection and measurement of combustible gas or vapour concentrations with air. The apparatus, or parts thereof, may be installed or used in potentially explosive atmospheres, other than mines susceptible to firedamp (i.e. Group I). The general requirements and test methods applicable to the apparatus covered by this European Standard are specified in EN 50054. This European Standard is restricted to apparatus intended for the detection and measurement of combustible gas or vapour concentrations with air up to 100 % lower explosive limit (LEL). NOTE: Although apparatus of the types covered by this European Standard may be suitable for detecting a wide range of combustible gases, particular gases (e.g. methane or propane) are specified in EN 50054 as the components of the test gases for the purpose of practical convenience. The performance requirements specified in this European Standard must therefore be regarded with caution when the apparatus is used to detect other combustible gases, as some parameters - such as speed of response - will be modified

Elektrische Geräte für die Detektion und die Messung brennbarer Gase - Anforderungen an das Betriebsverhalten von Geräten der Gruppe II mit einem Meßbereich bis zu 100 % der unteren Explosionsgrenze

Appareils électriques de détection et de mesure des gaz combustibles - Règles de performances des appareils du Groupe II pouvant indiquer jusqu'à 100 % de la limite inférieure d'explosivité

Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for Group II apparatus indicating up to 100 % lower explosive limit

General Information

Status
Withdrawn
Publication Date
08-Jul-1998
Withdrawal Date
31-Dec-1998
ICS
13.320 - Alarm and warning systems
Technical Committee
CLC/TC 31 - Electrical apparatus for explosive atmospheres - General requirements
Drafting Committee
CLC/SC 31-9 - Electrical apparatus for the detection and measurement of combustible gases to be used in industrial
Parallel Committee
IEC/SC 31L - IEC_SC_31L
Current Stage
9960 - Withdrawal effective - Withdrawal
Start Date
30-Jun-2003
Completion Date
30-Jun-2003
Directive
94/9/EC - Directive 94/9/EC of the European Parliament and the Council of 23 March 1994 on the approximation of the laws of the Member States concerning equipment and protective systems intended for use in potentially explosive atmospheres
Ref Project
SIST EN 50057:2000 - Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for Group II apparatus indicating up to 100 % lower explosive limit

Relations

Replaces
EN 50057:1991 - Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for Group II apparatus indicating up to 100% lower explosive limit
Effective Date
28-Jan-2023
Replaced By
EN 61779-4:2000 - Electrical apparatus for the detection and measurement of flammable gases - Part 4: Performance requirements for group II apparatus indicating a volume fraction up to 100 % lower explosive limit
Effective Date
29-Jan-2023

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Standards Content (Sample)


SLOVENSKI STANDARD
01-september-2000
Electrical apparatus for the detection and measurement of combustible gases -
Performance requirements for Group II apparatus indicating up to 100 % lower
explosive limit
Electrical apparatus for the detection and measurement of combustible gases -
Performance requirements for Group II apparatus indicating up to 100 % lower explosive
limit
Elektrische Geräte für die Detektion und die Messung brennbarer Gase - Anforderungen
an das Betriebsverhalten von Geräten der Gruppe II mit einem Meßbereich bis zu 100 %
der unteren Explosionsgrenze
Appareils électriques de détection et de mesure des gaz combustibles - Règles de
performances des appareils du Groupe II pouvant indiquer jusqu'à 100 % de la limite
inférieure d'explosivité
Ta slovenski standard je istoveten z: EN 50057:1998
ICS:
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
29.260.20 (OHNWULþQLDSDUDWL]D Electrica
...

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