1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 50545-1:2011Electrical apparatus for the detection and measurement of toxic and combustible gases in car parks and tunnelsPart 1: General performance requirements and test
2、methods for the detection and measurement of carbon monoxide and nitrogen oxidesCopyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50545-1:2011 BRITISH ST
3、ANDARDNational forewordThis British Standard is the UK implementation of EN 50545-1:2011.The UK participation in its preparation was entrusted to TechnicalCommittee EXL/31/1, Gas detectors.A list of organizations represented on this committee can beobtained on request to its secretary.This publicati
4、on does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 71594 5ICS 13.040.50Compliance with a British Standard cannot confer immunity froml
5、egal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 May 2012.Amendments issued since publicationDate Text affectedCopyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot f
6、or ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50545-1:2011EUROPEAN STANDARD EN 50545-1 NORME EUROPENNE EUROPISCHE NORM September 2011 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komi
7、tee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50545-1:2011 E ICS 13.040.50 English version Electrical apparatus for the detection and m
8、easurement of toxic and combustible gases in car parks and tunnels Part 1: General performance requirements and test methods for the detection and measurement of carbon monoxide and nitrogen oxides Appareil lectrique de dtection de mesure de gaz combustible et toxique dans les parcs de stationnement
9、 et les tunnels Partie 1: Exigences de performance gnrales et mthodes pour la dtection et la mesure du monoxyde de carbone et doxyde dazote Elektrische Gerte fr die Detektion und Messung von toxischen (und brennbaren) Gasen in Tiefgaragen und Tunneln - Teil 1: Allgemeine Anforderungen an das Betrieb
10、sverhalten sowie Prfverfahren fr die Detektion und Messung von Kohlenmonoxid und Stickoxiden This European Standard was approved by CENELEC on 2011-08-15. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard th
11、e status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, Ge
12、rman). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgar
13、ia, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Copyright Eu
14、ropean Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50545-1:2011EN 50545-1:2011 2 Contents Foreword . 4 Introduction . 51 Scope . 62 Normative references . 73 Terms an
15、d definitions 73.1 Gas properties 73.2 Types of apparatus and components . 83.3 Sensors. 83.4 Signals and alarms . 93.5 Time 93.6 Other .114 General requirements .114.1 Introduction .114.2 Construction requirements .114.3 Operational requirements .144.4 Access level 164.5 Information for the user 17
16、5 Test requirements .185.1 General .185.2 Sequence of tests .185.3 Preparation of apparatus before testing .195.4 Test gas application 195.5 Normal conditions for test .206 Test methods .216.1 General .216.2 Unpowered storage 216.3 Linearity 216.4 Alarm set points and outputs (car parks only) 226.5
17、Repeatability .236.6 Temperature .236.7 Humidity 246.8 Air velocity (for diffusion apparatus only) .246.9 Flow rate (for aspirated apparatus only) .246.10 Interfering gases .246.11 Recovery from high gas concentrations .256.12 Mechanical strength .256.13 Warm-up time .256.14 Response time 256.15 Pow
18、er supply variations 266.16 Long-term stability 266.17 Field calibration, or field verification kit .266.18 Calibration mask .266.19 Testing of multiple point selector 266.20 Vibration276.21 Electromagnetic compatibility .27Annex A (informative) Using NO and NO2standard test gases for standard and h
19、umidity testing 28A.1 General .28A.2 NO2gas testing .28A.3 Humidity testing 28Annex B (informative) Clarification regarding “6.4 Alarm set points and outputs (car parks only)” .29Bibliography 31Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENEL
20、ECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50545-1:2011 3 EN 50545-1:2011 Figures Figure 1 Warm-up time in clean air (typical). 10Figure 2 Warm-up time in standard test gas (typical) 10Figure B.1 Output of the sensor . 29Figure B.2 Time-weighted measur
21、ed gas concentration 29Figure B.3 Missing areas for TWA calculation . 30Tables Table 1 Measuring range 14Table 2 Alarm levels . 14Table 3 Maximum uncertainty and concentration of standard test gases 20Table 4 Tolerance for linearity 22Table 5 ppm.min calculated from Table 2 and alarms 1,2 test gas c
22、oncentrations . 22Table 6 Tolerances for alarm 1 and alarm 2 activation 23Table 7 Tolerances for zero deviation 23Table 8 Interfering gases table: test results to be inserted into the blank cells 24Table 9 Gas concentration for recovery test 25Copyright European Committee for Electrotechnical Standa
23、rdization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50545-1:2011EN 50545-1:2011 4 Foreword This document (EN 50545-1:2011) has been prepared by CLC Technical Body 216 “Gas detectors“. The following dates are fix
24、ed: latest date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2012-08-15 latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2014-08-15 Attention is drawn to th
25、e possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNo
26、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50545-1:2011 5 EN 50545-1:2011 Introduction This European Standard does not give guidance on installation of a gas detection system. This European Standard specifies unique ranges and alarm levels for type testing
27、, specifying minimum requirements. All alarm levels are variable and may be adapted to national and/or local regulations. Separate type testing of remote gas sensors and control units is permitted. It is common practice to use an integrated tunnel control system that includes processing of toxic gas
28、 measurement along with other monitoring functions. When remote gas detectors and control units are type tested separately, it is the responsibility of the manufacturer to ensure that the assembled system complies with the requirements of this European Standard. The maximum capacity of the assembled
29、 system should not exceed the capacity of the system that has been type tested. Engineering companies or installers who buy equipment from different manufacturers are responsible for the proper integration of the system. Copyright European Committee for Electrotechnical Standardization Provided by I
30、HS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50545-1:2011EN 50545-1:2011 6 1 Scope This European Standard applies to apparatus for the detection and/or the measurement of carbon monoxide (CO), nitrogen monoxide (NO) and nitroge
31、n dioxide (NO2) intended to control a ventilation system and/or to give an indication, alarm or any other signal to warn of a toxic hazard. These three gases are generically called “target gases” for the purpose of this European Standard. National and local regulations might not require detection of
32、 NO or NO2and might require detection of other gases or vapours. This European Standard includes requirements for remote gas sensors (RGS) to be used in car parks and tunnels and requirements for the control unit (CU) to be used in car parks. This European Standard specifies general requirements for
33、 construction and testing and describes the test methods that apply to fixed apparatus for the detection and/or the measurement of the concentration of the target gases in car parks and tunnels. This European Standard may also be applied to similar applications where the concentration of the target
34、gases could lead to a risk to health, for example loading areas for trucks and underground bus stations. This European Standard also applies when an apparatus manufacturer makes any claims regarding superior performance that exceeds these minimum requirements. This European Standard applies to appar
35、atus, including the sampling system if applicable. This European Standard does not specify requirements for apparatus to be installed in hazardous areas. This European Standard does not apply for applications already covered by the following standards: domestic premises, covered by EN 50291-1; boats
36、, craft, caravans or mobile homes, covered by EN 50291-2; workplace atmospheres, covered by EN 45544 series; emissions of heaters, covered by EN 50379 series; motor vehicles emissions, covered by ISO/PAS 3930; monitoring of the LEL level of combustible gases, covered by EN 60079-29-1. This European
37、Standard does not apply for the following applications and technologies: confined spaces not accessible to people; laboratory or analytical equipment; apparatus used to control industrial processes; portable and transportable apparatus; open path gas detection; tunnel construction; monitoring of par
38、ticulates and dust; monitoring of combustible gases; CO monitoring for fire detection. Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50545-1:2011 7 E
39、N 50545-1:2011 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 50270, E
40、lectromagnetic compatibility Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen EN 50271, Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen Requirements and tests for apparatus using software and/or digi
41、tal technologies EN 60073, Basic and safety principles for man-machine interface, marking and identification Coding principles for indicators and actuators (IEC 60073) EN 60335-1:2002 + corr. Jul.2009 + corr. May.2010 + A1:2004 + corr. Jan.2007 + A2:2006 + A11:2004 + A12:2006 + corr. Feb.2007 + A13:
42、2008 + A14:2010, Household and similar electrical appliances Safety Part 1: General requirements (IEC 60335-1:2001 + A1:2004 + A2:2006 + corrigendum Aug. 2006) EN 60529, Degrees of protection provided by enclosures (IP Code) (IEC 60529) 3 Terms and definitions For the purposes of this document, the
43、following terms and definitions apply: 3.1 Gas properties 3.1.1 clean air air that is free of target gas, interfering gases or contaminating substances 3.1.2 hazardous area (potentially explosive atmosphere) an atmosphere which could become explosive due to local and operational conditions NOTE Oper
44、ation in hazardous areas may require legislative measures for the approval, installation and construction requirements of the apparatus. 3.1.3 ppm.min gas concentration multiplied by the time, in minutes, of gas application NOTE Used for testing Time-weighted Average (TWA). 3.1.4 volume ratio V/V ra
45、tio of one component in a mixture divided by the sum of the volumes of all the components before they are mixed at specified temperature and pressure conditions ISO 7504 NOTE 1 This is also known as concentration. NOTE 2 Assuming ideal behaviour or gases, the volume ratio coincides with the molar ra
46、tio (mol/mol). The ppm units are equivalent to the International System units 10-6vol/vol. Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50545-1:2011
47、EN 50545-1:2011 8 3.2 Types of apparatus and components 3.2.1 calibration mask device that when applied to the sensor provides the continuous and renovated gas supply to the sensor such that the gas concentration reaching the sensing element remains unchanged 3.2.2 control unit CU part of the apparatus that receives and processes the analogue or digital signal generated by the sensors and also generates alarms and output functions 3.2.3 fixed apparatus apparatus that is intended to have all parts permanently installed 3.2.4 power supply device that, by means of mains electricity or one o
