• EN 50054:1998

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    Electrical apparatus for the detection and measurement of combustible gases - General requirements and test methods

    Available format(s): 

    Superseded date:  01-06-2000

    Language(s): 

    Published date:  09-07-1998

    Publisher:  European Committee for Standards - Electrical

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    Table of Contents - (Show below) - (Hide below)

    1 Scope
    2 Definitions
    3 General requirements
    3.1 Introduction
    3.2 Construction
    3.2.1 General
    3.2.2 Indicating devices
    3.2.3 Alarm or output functions
    3.2.4 Fault signals
    3.2.5 Adjustments
    3.2.6 Battery-powered apparatus
    3.3 Labelling and marking
    3.3.1 General
    3.3.2 Identification of the calibration gas Group II apparatus
    3.4 Instruction manual
    4 Test requirements
    4.1 Introduction
    4.2 General requirements for tests
    4.2.1 Samples and sequence of tests
    4.2.2 Preparations of apparatus before testing
    4.2.3 Mask for calibrations and tests
    4.3 Normal conditions for test
    4.3.1 General
    4.3.2 Test gases
    4.3.3 Standard test gas
    4.3.4 Flow rate for test gases
    4.3.5 Voltage
    4.3.6 Ambient temperature
    4.3.7 Pressure
    4.3.8 Humidity
    4.3.9 Stabilization time
    4.3.10 Orientation
    4.4 Test methods
    4.4.1 General
    4.4.2 Unpowered storage
    4.4.3 Calibration and adjustment
    4.4.4 Drift (continuous duty apparatus)
    4.4.5 Drift (spot-reading apparatus)
    4.4.6 Alarm set point(s)
    4.4.7 Temperature
    4.4.8 Pressure
    4.4.9 Humidity
    4.4.10 Air speed
    4.4.11 Pumping rate
    4.4.12 Orientation
    4.4.13 Vibration (applicable to Group I machine-mounted
            apparatus and to Group II fixed and transportable
            apparatus)
    4.4.14 Drop test (applicable to portable apparatus and remote
            sensors)
    4.4.15 Warm-up time (not applicable to spot-reading apparatus)
    4.4.16 Time of response (not applicable to spot-reading
            apparatus)
    4.4.17 Minimum time of operation (spot-reading apparatus)
    4.4.18 High gas concentrations above the measuring range
    4.4.19 Battery capacity
    4.4.20 Power supply variations
    4.4.21 Power supply interruptions, voltage transients and step
            changes of voltage
    4.4.22 Addition of sampling probe
    4.4.23 Dust (applicable to Group I apparatus only)
    4.4.24 Poisons and other gases
    4.4.25 Electromagnetic immunity
    5 Field calibration kit
    Annexes
    A Flammability limits (i.e. LEL and UEL) of some flammable
            gases and vapours
    B Determination of time of response
    C Breathing and draining devices which form part of a
            flameproof enclosure
    D Tests of flameproof enclosures with breathing and
            draining devices
    E Additional requirements for crimped ribbon elements of
            breathing and draining devices
    F Additional requirements for elements, with
            non-measurable paths, of breathing and draining devices

    Abstract - (Show below) - (Hide below)

    This European Standard specifies general requirements for construction and testing and describes the test methods that apply to portable, transportable and fixed apparatus for the detection and measurement of combustible gas or vapour concentrations with air. The apparatus, or parts thereof, is intended for use in potentially explosive atmospheres and in mines susceptible to firedamp. This European standard is supplemented by the following European Standards, concerning the specific requirements for performance of the various types of apparatus:EN 50055: Performance requirements for Group I apparatus indicating up to 5 % (v/v) methane in air; EN 50056: Performance requirements for Group I apparatus indicating up to 100 % (v/v) methane EN 50057: Performance requirements for Group II apparatus indicating up to 100 % lower explosive limit; EN 50058: Performance requirements for Group II apparatus indicating up to 100 % (v/v) gas- NOTE 1: Group I apparatus indicating up to 100 % (v/v) methane and Group II apparatus indicating up to 100 % (v/v) gas are suitable for use only with the specific gases for which they have been calibrated. NOTE 2: For the purposes of this European Standard the term 'combustible gas' includes combustible vapours but excludes mist and dust, see 3.3 note 1. This European Standard is applicable to combustible gas detection apparatus intended to provide an indication) alarm and/or other output function, the purpose of which is to give a warning of potential explosion hazard and in some cases to initiate automatic or manual protective actions. This European Standard is applicable to apparatus, including the integral sampling systems of aspirated apparatus intended to be used for commercial and industrial safety applications. This European Standard does not apply to external sampling systems, or to apparatus of the laboratory or scientific types, or to apparatus used only for process control purposes

    General Product Information - (Show below) - (Hide below)

    Committee CLC/TC 31
    Document Type Standard
    Publisher European Committee for Standards - Electrical
    Status Superseded
    Superseded By

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS EN 50194:2000 Electrical apparatus for the detection of combustible gases in domestic premises. Test methods and performance requirements
    EN 50073:1999 Guide for selection, installation, use and maintenance of apparatus for the detection and measurement of combustible gases or oxygen
    EN 50056:1998 Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for Group I apparatus indicating up to 100 % (v/v) methane in air
    EN 50058:1998 Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for Group II apparatus indicating up to 100 % (v/v) gas
    05/30128234 DC : DRAFT FEB 2005 EN 1473 - INSTALLATION AND EQUIPMENT FOR LIQUEFIED NATURAL GAS - DESIGN OF ONSHORE INSTALLATIONS
    BS EN 50056:1999 Electrical apparatus for the detection and measurement of combustible gases. Performance requirements for Group I apparatus indicating up to 100% (V/V) methane in air
    BS EN 50058:1999 Electrical apparatus for the detection and measurement of combustible gases. Performance requirements for Group II apparatus indicating up to 100% (V/V) gas
    CEI UNI EN 50194 : 2001 ELECTRICAL APPARATUS FOR THE DETECTION OF COMBUSTIBLE GASES IN DOMESTIC PREMISES - TEST METHODS AND PERFORMANCE REQUIREMENTS
    DIN EN 50134-2 : 2000 ALARM SYSTEMS - SOCIAL ALARM SYSTEMS - PART 2: TRIGGER DEVICES
    IEC TR 61831:2011 On-line analyser systems - Guide to design and installation
    VDE 0400-40-1 : 2000 AMD 1 2004 SPECIFICATION FOR OPEN PATH APPARATUS FOR THE DETECTION OF COMBUSTIBLE OR TOXIC GASES AND VAPOURS - PART 1: GENERAL REQUIREMENTS AND TEST METHODS
    DIN EN 50241-1 : 2000 AMD 1 2004 SPECIFICATION FOR OPEN PATH APPARATUS FOR THE DETECTION OF COMBUSTIBLE OR TOXIC GASES AND VAPOURS - PART 1: GENERAL REQUIREMENTS AND TEST METHODS
    PD IEC/TR 61831:2011 On-line analyser systems. Guide to design and installation
    BS EN 50241-1:1999 Specification for open path apparatus for the detection of combustible or toxic gases and vapours General requirements and test methods
    CSA PLUS 2203 : 2001 HAZARDOUS LOCATIONS - GUIDE FOR THE DESIGN, TESTING, CONSTRUCTION, AND INSTALLATION OF EQUIPMENT IN EXPLOSIVE ATMOSPHERES
    VDE 0830-4-2 : 2000 ALARM SYSTEMS - SOCIAL ALARM SYSTEMS - PART 2: TRIGGER DEVICES
    EN 50241-1 : 99 AMD 1 2004 SPECIFICATION FOR OPEN PATH APPARATUS FOR THE DETECTION OF COMBUSTIBLE OR TOXIC GASES AND VAPOURS - PART 1: GENERAL REQUIREMENTS AND TEST METHODS
    BS EN 50057:1999 Electrical apparatus for the detection and measurement of combustible gases. Performance requirements for Group II apparatus indicating up to 100% lower explosive limit
    BS EN 60335-2-40 : 2003 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 2-40: PARTICULAR REQUIREMENTS FOR ELECTRICAL HEAT PUMPS, AIR-CONDITIONERS AND DEHUMIDIFIERS
    12/30218781 DC : DRAFT JAN 2012 BS EN 60335-2-40 - HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 2-40: PARTICULAR REQUIREMENTS FOR ELECTRICAL HEAT PUMPS, AIR-CONDITIONERS AND DEHUMIDIFIERS
    EN 1532 : 1997 INSTALLATION AND EQUIPMENT FOR LIQUEFIED NATURAL GAS - SHIP TO SHORE INTERFACE
    BS EN 50055:1999 Electrical apparatus for the detection and measurement of combustible gases. Performance requirements for Group I apparatus indicating up to 5 % (V/V) methane in air
    I.S. EN 1532:1997 INSTALLATION AND EQUIPMENT FOR LIQUEFIED NATURAL GAS - SHIP TO SHORE INTERFACE
    BS IEC 61831:1999 On-line analyser systems. Guide to design and installation
    BS EN 50073:1999 Guide for selection, installation, use and maintenance of apparatus for the detection and measurement of combustible gases or oxygen
    CEI EN 50134-2 : 2000 ALARM SYSTEMS - SOCIAL ALARM SYSTEMS - PART 2: TRIGGER DEVICES
    I.S. EN 50241-1:1999 SPECIFICATION FOR OPEN PATH APPARATUS FOR THE DETECTION OF COMBUSTIBLE OR TOXIC GASES AND VAPOURS - GENERAL REQUIREMENTS AND TEST METHODS
    EN 50055:1998 Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for Group I apparatus indicating up to 5 % (v/v) methane in air
    EN 50194:2000 Electrical apparatus for the detection of combustible gases in domestic premises - Part 1: Test methods and performance requirements
    EN 50057:1998 Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for Group II apparatus indicating up to 100 % lower explosive limit
    EN 60335-2-40:2003/A13:2012/AC:2013 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 2-40: PARTICULAR REQUIREMENTS FOR ELECTRICAL HEAT PUMPS, AIR-CONDITIONERS AND DEHUMIDIFIERS
    I.S. EN 60335-2-40:2006 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 2-40: PARTICULAR REQUIREMENTS FOR ELECTRICAL HEAT PUMPS, AIR-CONDITIONERS AND DEHUMIDIFIERS (IEC 60335-2-40:2002 (MOD))

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 60079-10:2002 Electrical apparatus for explosive gas atmospheres - Part 10: Classification of hazardous areas
    EN 50058:1998 Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for Group II apparatus indicating up to 100 % (v/v) gas
    ISO 2738:1999 Sintered metal materials, excluding hardmetals — Permeable sintered metal materials — Determination of density, oil content and open porosity
    EN 50039:1980 Electrical apparatus for potentially explosive atmospheres - Intrinsically safe electrical systems 'i'
    EN 50020:2002 Electrical apparatus for potentially explosive atmospheres - Intrinsic safety 'i'
    ISO 4003:1977 Permeable sintered metal materials — Determination of bubble test pore size
    HD 481.1 : 200S1 ELECTROMAGNETIC COMPATIBILITY FOR INDUSTRIAL-PROCESS MEASUREMENT AND CONTROL EQUIPMENT - GENERAL INTRODUCTION
    IEC 60801-4:1988 Electromagnetic compatibility for industrial-process measurement and control equipment - Part 4: Electrical fast transient/burst requirements
    EN 50055:1998 Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for Group I apparatus indicating up to 5 % (v/v) methane in air
    EN 50017:1998 Electrical apparatus for potentially explosive atmospheres - Powder filling "q"
    EN 50019:2000/corrigendum Apr. 2003 ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES - INCREASED SAFETY "E"
    EN 50018 : 2000 AMD 1 2002 ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES - FLAMEPROOF ENCLOSURE "D"
    EN 50057:1998 Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for Group II apparatus indicating up to 100 % lower explosive limit
    ISO 6147:1979 Gas analysis Preparation of calibration gas mixtures Saturation method
    ISO 4022:1987 Permeable sintered metal materials — Determination of fluid permeability
    HD 323.2.6 : 200S2 BASIC ENVIRONMENTAL TESTING PROCEDURES - TESTS - TEST FC AND GUIDANCE: VIBRATION (SINUSOIDAL)
    ISO 6142:2001 Gas analysis Preparation of calibration gas mixtures Gravimetric method
    IEC 60079-14:2013 Explosive atmospheres - Part 14: Electrical installations design, selection and erection
    ISO 6145-4:2004 Gas analysis Preparation of calibration gas mixtures using dynamic volumetric methods Part 4: Continuous syringe injection method
    ISO 6145-3:1986 Gas analysis Preparation of calibration gas mixtures Dynamic volumetric methods Part 3: Periodic injections into a flowing gas stream
    ISO 6146:1979 Gas analysis Preparation of calibration gas mixtures Manometric method
    EN 50015:1998 Electrical apparatus for potentially explosive atmospheres - Oil immersion "o"
    EN 50056:1998 Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for Group I apparatus indicating up to 100 % (v/v) methane in air
    EN 50016:2002 Electrical apparatus for potentially explosive atmospheres - Pressurized apparatus "p"
    ISO 6145-1:2003 Gas analysis Preparation of calibration gas mixtures using dynamic volumetric methods Part 1: Methods of calibration
    HD 481.3 : 200S1 ELECTROMAGNETIC COMPATIBILITY FOR INDUSTRIAL-PROCESS MEASUREMENT AND CONTROL EQUIPMENT - RADIATED ELECTROMAGNETIC FIELD REQUIREMENTS
    EN 50028:1987 Electrical apparatus for potentially explosive atmospheres - Encapsulation 'm'
    EN 50014:1997/A2:1999 ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES - GENERAL REQUIREMENTS
    ISO 6145-6:2017 Gas analysis — Preparation of calibration gas mixtures using dynamic methods — Part 6: Critical flow orifices
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