1、BRITISH STANDARDBS EN 50131-2-2:2008Alarm systems Intrusion and hold-up systems Part 2-2: Intrusion detectors Passive infrared detectorsICS 13.310 BS EN 50131-2-2:2008Incorporating corrigendum May 2014EN 50131-2-2:2008/IS1:2014 (E) 4 Text of IS1 to EN 50131-2-2:2008 Clause: Annex A and Figure A.1 Qu
2、estion: Would it be allowed for test purposes (for test houses and manufacturers) to use the NeoDym magnet listed below instead of the AlNiCo version described in Annex A and Figure A.1 for reproducible tests ? Interpretation: Yes, because this will allow stable and reproducible test results, which
3、is not guaranteed while using the AlNiCo magnet due to the nature of the magnet material. Furthermore, the test magnet described below allows a high-level degree of backward compatibility for already tested products, while it gives the stability required. Therefore, when the NeoDym magnet is used fo
4、r test purposes (for test houses and manufacturers), the text below may be used in place of Annex A. Validity: This interpretation remains valid until an amendment or updated standard dealing with this issue is published by CENELEC. BS EN 50131-2-2:2008ISBN 978 0 580 83556 8Amendments/corrigenda iss
5、ued since publicationDate Comments31 May 2014 Implementation of CENELEC Interpretation sheet February 2014 in National Annex NAThis British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 February 2008 The British Standards Institution 2014. Published
6、by BSI Standards Limited 2014National forewordThis British Standard is the UK implementation of EN 50131-2-2:2008. It supersedes DD CLC/TS 50131-2-2:2004 which is withdrawn.The UK participation in its preparation was entrusted by Technical Committee GW/1, Electronic security systems to Subcommittee
7、GW/1/1, Alarm components.A list of organizations represented on this subcommittee can be obtained on request to its secretary.The publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard c
8、annot confer immunity from legal obligations.EN 50131-2-2:2008/IS1:2014 (E) 4 Text of IS1 to EN 50131-2-2:2008 Clause: Annex A and Figure A.1 Question: Would it be allowed for test purposes (for test houses and manufacturers) to use the NeoDym magnet listed below instead of the AlNiCo version descri
9、bed in Annex A and Figure A.1 for reproducible tests ? Interpretation: Yes, because this will allow stable and reproducible test results, which is not guaranteed while using the AlNiCo magnet due to the nature of the magnet material. Furthermore, the test magnet described below allows a high-level d
10、egree of backward compatibility for already tested products, while it gives the stability required. Therefore, when the NeoDym magnet is used for test purposes (for test houses and manufacturers), the text below may be used in place of Annex A. Validity: This interpretation remains valid until an am
11、endment or updated standard dealing with this issue is published by CENELEC. BS EN 50131-2-2:2008National Annex NA (Informative)EN 50131-2-2:2008/IS1:2014 (E) 5 Annex A (normative) Dimensions it is not required to operate when the Ib) the manufacturers diagram of the detector and its claimed detecti
12、on boundary showing top andside elevations at 2,0 mmounting height or ata height specified by the manufacturer,superimposed upon a scaled 2 m squared grid. The size ofthe grid shall be directly related tothe size of the claimed detection boundary;c) the recommended mounting height, and the effect of
13、 changes to it on the claimed detection boundary;d) the effect of adjustable controls on the detectorsperformance or on the claimed detection boundary including atleast the minimum and maximum settings;e) any disallowed field adjustable control settings or combinations of these;f) any specific setti
14、ngs needed to meet the requirements of this European Standard at the claimed grade;g) where alignment adjustments are provided, these shallbe labelled as to theirfunction;h) a warning to the user not to obscure partially or completely the detectors field ofview;i) the manufacturers quoted nominal op
15、erating voltage, and the maximum and quiescent currentconsumption at thatvoltage;j) any special requirements needed for detecting a 50 % reduction in range, where provided.6 Testing The tests are intended tobe primarily concerned with verifying the correct operation of the detector tothe specificati
16、on provided by the manufacturer. Allthe test parameters specified shall carry a general tolerance of 10 % unless otherwise stated. A listof tests appears as a general test matrix inAnnex B.6.1 General test conditions6.1.1 Standard conditions for testingThe general atmospheric conditions in the measu
17、rement and tests laboratory shall be those specified in EN 60068-1, 5.3.1, unless stated otherwise.Temperature 15 C to 35 CRelative humidity25 % RH to 75 % RH Air pressure 86 kPa to 106 kPa 6.1.2 Generaldetection testing environment andprocedures Manufacturers documented instructions regarding mount
18、ing and operation shall be read and applied to alltests.BS EN 50131-2-2:2008EN 50131-2-2:2008EN 50131-2-2:2008 -14-6.1.3 TestingenvironmentThe detection tests require an enclosed, unobstructed and draught-free area that enables testing ofthe manufacturers claimed coverage pattern.The test area walls
19、 and floor shall have a recommended emissivity of at least 80 % between 8 m and14 m wavelength, at least directly behind the SWT.The temperature of the background surface immediately behind the SWT shall be in the range 15 Cto 25 C, and shall be horizontally uniform over that area to 2 C. Over the w
20、hole background area itshall be measured at ten points spread evenly throughout the coverage pattern. The average background temperature is the linear average ofthe ten points.The defaultmounting height shall be 2,0 m unless otherwisespecified by the manufacturer.Annex C provides example diagrams fo
21、rthe range of walk tests for one format of detection pattern.Many others are possible.6.1.4 Standard walk test targetThe SWT shall have the physical dimensions of 1,60 m to 1,85 m in height, shall weigh 70 kg 10 kgand shall wear close-fitting clothing having a recommended emissivity of at least 80 %
22、 between 8 mand 14 m wavelength.Temperatures shall be measured at the following five points on the front of the body of the SWT:1. Head 2. Chest3. Back of hand 4. Knee 5. FeetTemperatures shall be measured using a non-contact thermometer or equivalent equipment,The temperature differential at each b
23、ody point is measured, thenweighted and averaged as detailedin D.1.There shall be a means of calibration and control of the desired velocity at which the SWTis requiredto move. NOTE The use of a simulator/robotin place ofthe SWT is permitted, provided that it meets the specification of the SWT withr
24、egard to temperature. It isknownas the simulated target.In caseofconflict,a human walk test shall bethe primary reference.6.1.4.1Standard walk test target temperature differentialThe walk tests shall be performed either with an average temperature differential Dtr(as calculated inD.1) of 3,5 C 20 %,
25、 orifthe temperature differentialis larger than 3,5 C+ 20 % (4,2C), itmay be adjusted to achieve an equivalenttemperature differential Dte within this range by one of the meansspecified inD.2.If Dtris less than 3,5 C 20 % (2,8 C), no valid test is possible.If Dtris between 2,8 C and 4,2 C, no adjust
26、ment is required.6.1.5 Testingprocedures The detector shall be mounted at a height of 2,0 m unless otherwise specified by the manufacturer.The orientation shall be as specified by the manufacturer with unobstructed view ofthe walk testto be performed. The detector shall be connected to the nominal s
27、upplyvoltage, and connected toequipment with a means of monitoring intrusion signals or messages. The detector shall be allowed tostabilise for180 s. Ifmultiple sensitivitymodes such as pulse counting are available, any non-compliantmodes shall be identified bythe manufacturer. All compliantmodes sh
28、all be tested.BS EN 50131-2-2:2008EN 50131-2-2:2008-15-EN50131-2-2:2008 6.2 Basic detection testThe purpose of the basic detection test is toverify thata detector is still operational after a test or testshas/have been carried out.The basic detection test verifies only the qualitative performance of
29、 a detector.The basic detection test is performed using the BDT.6.2.1 Basic detection target (BDT)The BDT consists of a heat source equivalentto the human hand that can be moved across the field ofview of the detector. An informative description is given in Annex E. The temperature of the sourceshal
30、l be between 3,5 C and 10,0 C above the background.A close-in walk testmay be carried out as an alternative to using the BDT.6.2.2 Basic test of detection capability A stimulus that is similar to that produced by the SWTis applied to the detector, using the BDT.Movethe BDT perpendicularly across the
31、 centre line of the detection field at a distance of not more than 1 m, and at a height where the manufacturer claims detection will occur.Move the BDT a distance of 1 m at a velocity of 0,5 ms-1to 1,0 ms-1. The detector shall produce anintrusion signal ormessage when exposed to an alarm stimulus bo
32、th before and after being subjected to any testthatmay adversely affect its performance.6.3 Walktesting6.3.1 General walk testmethodWalk testing is accomplished by the controlled movement of a SWT across the field of view of thedetector. The grade dependent velocities and attitudes to be used by the
33、 SWT are specified inTable 3. The tolerance of these velocities shall be better than 10 %. The SWT begins and ends awalk withfeet together. AnnexFis an informative description of two systems that may be used tocontrol and monitor the desired velocity.6.3.2 Verification of detection performance The g
34、eneraltest conditions of 6.1.1, 6.1.2 and 6.1.3 shall apply to all tests inthis series.Detection performance shall be tested against the manufacturers documented claims. Example walktest diagrams are shown in Annex C.Anyvariable controls shall be set to the values recommended by the manufacturer to
35、achieve the claimed performance.PIR detectors of alltypes shall be assessed in the specified test environment.Ifthe dimensions of the detection pattern exceed the available test space,itmay be tested in sectionsrather than as a whole.The SWT or a suitable simulated target, withits temperature differ
36、ence with the background adjustedaccording to Annex D shall be used. Grade dependent velocities and attitudes are specified inTable 3.6.3.3 Detection across andwithin the detectionboundaryThe tests assess detection of intruders moving within and across the boundaries of the detection area.The diagra
37、ms in Annex C show an example of the detection boundarysuperimposed whereappropriate upon a scaled 2 m squared grid. Avariety of boundaryformats is possible and can betested.6.3.3.1Verify detection across the boundary Figure C.1 shows an example of a manufacturers claimed detection boundary.Place te
38、st points at 2 mintervals around the boundary of the detection pattern, starting from the detector, and finishing where the boundary crosses the detector axis. Repeat for the opposite side ofthe detection pattern. If the gap between the final point on each side is greaterthan 2 m, place a testpoint
39、where the boundary crosses the detector axis. For grade 1 detectors itis only necessary to testalternate testpoints.BS EN 50131-2-2:2008EN 50131-2-2:2008EN 50131-2-2:2008 -16-Each test point is connected to the detector by a radial line. At each test point, two test directions intothe detection cove
40、rage pattern are available at +45 and 45 to the radial line. Both directions shallbe tested beginning at a distance of 1,5 mfrom the test point, and finish 1,5 m afterit.A walk test is a walk in one direction through a test point.Before commencing and after completingeach walk test the SWT shall sta
41、nd stillfor atleast 20 s.A walk test that generates an intrusion signal or message is a passed walk test. Alternativelyif the firstwalk test attempt does not generate an intrusion signal ormessage then fourfurther attempts shall becarried out. All of these further attempts shall generate an intrusio
42、n signal or message to constitute a passed walk test.Pass/Fail criteria:There shall be a passed walk testinboth directionsfor every test point.6.3.3.2Verify detection within the boundary Figure C.2 shows an example of a manufacturers claimed detection boundarysuperimposed upon ascaled 2 m squared gr
43、id.Starting at the detector, place the first test point at 4 m along the detector axis. Using the 2 m squaredgrid, place further test points at every alternate grid intersection, on both sides of the detector axis. Notest point shall be less than 1 mfrom, orlie outside, the claimed boundary.Each tes
44、t pointis connected tothe detector by a radial line. At each test point, two test directions areavailable, at+45 and 45 tothe radialline. Both directions shall be tested beginning at a distanceof 1,5 mfrom the test point, and finish 1,5 m after it.A walk test is a walk in one direction through a tes
45、t point.Before commencing and after completingeach walk test the SWT shall stand stillfor atleast 20 s.A walk test that generates an intrusion signal or message is a passed walk test. Alternativelyif the firstwalk test attempt does not generate an intrusion signal ormessage then fourfurther attempts
46、 shall becarried out. All of these further attempts shall generate an intrusion signal or message to constitute a passed walk test.Pass/Fail criteria:There shall be a passed walk testinboth directionsfor every test point.6.3.4 Verify the high-velocity detectionperformance Four walk tests are perform
47、ed.Two walk tests begin outside the boundary of the area,from opposite sides, and pass through the detector axis mid-range point at +45 and 45 to the detector axis,moving towards the detector. The third and fourth walk tests pass in opposite directions at right anglesto the detector axis at a distan
48、ce of 2 min front of, and parallelto the detector reference line.Examples are shown in Figure C.3.The SWT shall cross all of the specified detection area, coming to rest after clearing the otherdetection boundary. Before commencing and after completing each walk test the SWT shall stand stillfor atl
49、east 20 s.Pass/Fail criteria: Anintrusion signal ormessage shall be generated for each ofthe three walk tests.6.3.5 Verify the intermittent movement detectionperformance Two walk tests are performed, crossing the entire detection area. Before commencing and aftercompleting each walktest the SWT shall stand stillforat least 20 s.The tests begin outside the detection boundary, from opposite sides, and pass
