1、BSI Standards PublicationAlarm systems Intrusion and hold-upsystems Part 2-6: Opening contacts(magnetic)BS EN 50131-2-6:2008Incorporating corrigendum May 2014EN 50131-2-6:2008/IS1:2014 (E)4Text of IS1 to EN 50131-2-6:2008Clause:Annex A and Figure A.1Question:Would it be allowed for test purposes (fo
2、r 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 is not guaranteed while using the AlNiCo magnet due
3、 to the nature of the magnet material. Furthermore, the test magnet described belowallows a high-level degree of backward compatibility for already tested products, while it gives the stabilityrequired.Therefore, when the NeoDym magnet is used for test purposes (for test houses and manufacturers), t
4、he 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 50131-2-6:2008 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 50131-2-6:2008. I
5、t supersedes DD CLC/TS 50131-2-6:2004 which is withdrawn.The UK participation in its preparation was entrusted by Technical Committee GW/1, Electronic security systems, to Subcommittee GW/1/1, Alarm components.A list of organizations represented on this subcommittee can be obtained on request to its
6、 secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2014. Published by BSI Standards Limited 2014ISBN 978 0 580 83560 5ICS 13.320Compliance with a British Standard can
7、not confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 December 2008.Amendments/corrigenda issued since publicationDate Text affected31 May 2014 Implementation of CENELEC Interpretation sheet February 20
8、14 in National Annex NAEN 50131-2-6:2008/IS1:2014 (E) 4 Text of IS1 to EN 50131-2-6:2008 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 described in Annex A and Fig
9、ure 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 degree of backward comp
10、atibility 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 amendment or updated sta
11、ndard dealing with this issue is published by CENELEC. BS EN 50131-2-6:2008National Annex NA (Informative)EN 50131-2-6:2008/IS1:2014 (E) 5 Annex A (normative) Dimensions mandatory for all surface mounted grade 4 types,optional for surface mounted grades 1, 2 and 3.e See 4.6.7.f See 4.6.6.g The code
12、shall have a minimum of 8 differs.4.2 Signals ormessagesThe response to the signals or messages generated by the detector is determined by the I atleast one of these signals or messages (Intrusion or/and Tamperor/and Fault)shall be generated or an independentsignal ormessage shall be generated.b Req
13、uired only ifthe approach and removal distances are greater than twice the distances specified by the manufacturer (See 6.6.4); either intrusion AND faultsignals or messages, OR an independentsignalor message shallbe generated.c See 4.6.7.d See 4.6.6.4.3 Detection4.3.1 Detection performance4.3.1.1 G
14、eneralitiesThe operating parametersof the detector shall be verified as specified by the manufacturer for the axes ofmovement shown in Annex D.The manufacturer shall clearly state in the product documentation any special limitation concerning installation e.g. a prohibited area between a surface on
15、the detector and the minimummake distance. 4.3.1.2 Removal/break distance The detector shall generate an intrusion signal or message at the removal distance specified by themanufacturer.This distance shall be specified for all normal operating axes. If the detector is designed for installation on fe
16、rromagnetic surfaces or in ferromagnetic material, the removal/break distance shallalso be specified for all normal operating axes when the detectoris mounted using the material asspecified in AnnexE. 4.3.1.3 Approach/make distanceThe detector shall generate a reverse signal or message at the minimu
17、m separation distance(s)specified by the manufacturer. This distance shall be specified for all normal operating axes. If thedetectoris designed for installation on ferromagnetic surfaces or in ferromagnetic material, theapproach/make distance shall be specified for all normal operating axes when th
18、e detector is mountedusing the material as specified in Annex E.BS EN 50131-2-6:2008BS EN 50131-2-6:2008EN 50131-2-6:2008 11 EN 50131-2-6:20084.3.2Indication of detectionWhen a detection indicator is provided to show when an intrusion signal or message is generated, thisindicator shall be capable of
19、 being enabled and disabled.The adjustment to enable or disable this indication locally within the detectorshall only be accessiblewhen the detector is opened by normal means. A detector at grade 3 or grade 4 shall be capable of receiving indication enable and disable commands from the CIE when such
20、 an indicator is present.4.4 Operationalrequirements4.4.1 Time interval between intrusion signals or messages Detectors using wired interconnections shall be able to provide an intrusion signal or message notmore than 15 s after the end of the preceding intrusion signal or message.Detectors using wi
21、re free interconnections shall be able to provide an intrusion signal or message afterthe end of the preceding intrusion signal or message within the following times: Grade 1300 s; Grade 2180 s; Grade 330 s; Grade 415 s.4.4.2 Switch on delayWhere a detector requires an internal or external power sup
22、plyin accordance with 4.6, the detectorshall meet all functional requirements within 180 sof the power supply reaching its nominal voltage.4.4.3Fault condition signalsA detector shall generate a fault signal or message in accordance with the manufacturersspecification and the provisions of Table 2 i
23、n the presence of a fault condition, according to Table 1, oras a result of an internal self-test if this feature is provided4.5 Tamper security4.5.1 Tamper security requirements All terminals and means ofmechanical and electronic adjustments shall be located within the detectors housings.The tamper
24、 security requirementsfor each grade of detector are shown in Table 1.4.5.2Prevention of unauthorised access to the inside of the detector through coversand existing holesAccess holes shall not allowinterference with the operation of the detector byprobing with commonly available tools.Damage must n
25、ot be caused that would prevent normal operation.BS EN 50131-2-6:2008BS EN 50131-2-6:2008EN 50131-2-6:2008EN 50131-2-6:2008 12 If the detector can be opened, a tool shall be required to open the unit. For grades2, 3 and 4detectors all covers giving access to components that could adversely affect th
26、e operation of thedetector shall be fitted with a tamper detection device that shall generate signals or messages in accordance with Table 2. It shall not be possible to gain such access without generating a tampersignal or message or causing visible damage. Sealed contacts do not require the means
27、to detectaccess to the inside of the detector.4.5.3Detection of removal from the mounting surfaceA detection device shall be fitted that generates a tamper signal or message in accordance withTable 2 if the detector is removed from the mounting surface. Operation of the tamper device shall notbe com
28、promised byexternal means. This device shall activate before access can be gained to it.4.5.4 Magnetic field interference When the detector is mounted in accordance with the manufacturers instructions and is subject to thepresence of an external magnetic field generated by the interference test magn
29、ets specified inAnnex A and applied to the faces of the detector according to Annex F, the detector shall either: a) be immune to any influence by the interference test magnets and continue to operate normallywith the make and break distances not exceeding twice those specified in accordance with 4.
30、3.1,orb) generate an intrusion, and/or tamper, and/or fault, and/or other independent signal or message inaccordance with Table 2when the make or break distances exceed twice those specified in accordance with 4.3.1. These signals or messages maybe generated either on application of theinterference
31、test magnet orwhen the corresponding magnet has returned to its originalinstalledposition.NOTE The signals or messages generated by a grade 4 detector are intended to be used by the Ib) the recommended mounting configuration, details ofsuitable fixing methods, prohibited areas,mounting location ands
32、iting requirements;c) a statement of the operational approach and removal distances on ferromagnetic and non-ferromagnetic mounting surfaces for all recommended configurations and operational axes;d) the effect of anyadjustable controls on the detectors performance; e) anydisallowed field adjustable
33、 control settings or combinations of these;f) the operating voltage range and/or nominal operating voltage and the maximum and quiescentdetector current consumption at this nominal voltage; g) the value ofsupply voltage below which afault signal isgenerated.6 Testing 6.1 GeneralitiesThe tests are in
34、tended to be primarily concerned with verifying the correct operation of the detectortothe specification provided by the manufacturer. All the test parameters specified shall carry a generaltolerance of 10 % unless otherwise stated. A list of tests appears as a general test matrix in Annex B.BS EN 5
35、0131-2-6:2008BS EN 50131-2-6:2008EN 50131-2-6:2008 15 EN 50131-2-6:20086.2 Generaltest conditions6.2.1Standard laboratory conditions for testingThe general atmospheric conditions in the measurement and tests laboratory shall be those specifiedin EN 60068-1:1994, 5.3.1, unless stated otherwise:Temper
36、ature 15 C to 35 CRelative humidity 25 % RH to 75 % RHAir pressure 86 kPa to 106 kPa6.2.2General detection testing environment and proceduresThe manufacturers documented instructions regarding mounting and operation shall be read andapplied to all tests.6.2.3 TestingproceduresThe intrusion and, wher
37、e appropriate, tamper, fault and any other signal or message outputs shall bemonitored. Where appropriate, the detector shall be connected to the nominal supplyvoltage, and allowed tostabilise for 180 s.6.3 Basic test of detection capabilityThe general test conditions of 6.2 apply.Monitor the output
38、 of the detector with its corresponding magnet within the make distance. Move thecorresponding magnet to a position beyond the break distance. Record the status of the intrusionsignal or message during the test.Pass/Fail criteria: An intrusion signal or message shall be generated when the magnet is
39、movedbeyond the break distance.6.4Verification of detection performance6.4.1 GeneralitiesThe general test conditions of 6.2 shall apply to all tests in this series.Detection performance shall be tested against the manufacturers documented claims. Any variablecontrols shall be set to the values recom
40、mended by the manufacturer to achieve the claimedperformance. 6.4.2Measurement of approach/removal distancesBy moving the corresponding magnet relative to the switch component, measure the approach andremoval distances where the switch component generates intruder and reverse signals or messages.Rec
41、ord the response of the switch component. Note the approach and removal distances for all theconfigurations claimed in the manufacturers documentation. Pass/Fail criteria: An intrusion signal or message shall be generated beyond the removal distance andshall generate a reverse signal within the appr
42、oach distance claimed in the manufacturers documentation. BS EN 50131-2-6:2008BS EN 50131-2-6:2008EN 50131-2-6:2008EN 50131-2-6:2008 16 6.5Switch-on delay, time interval between signals, and indication of detectionThe general test conditions of 6.2 apply.Switch on the detectors power supplywith the
43、indicator enabled (if provided), and allow 180 s forstabilisation. Carry out the BTD. Note the response. Carry out the BTD again, after the grade-dependant time interval between signals according to 4.4.1. Note the response again. Disable theintrusion indicator (if provided). Repeat the BTD. Pass/Fa
44、il criteria: The detector shall generate an intrusion signal or message in response to the BTD.The intrusion signal or message and the intrusion indicator shall respond at the same time. A secondintrusion signal or message shall be generated after the grade-dependant time interval specified in4.4.1
45、has elapsed. With the indicator disabled (if provided) the detector shall still generate an intrusionsignal or message. 6.6 Tamper security6.6.1 GeneralitiesThe general test conditions of 6.2 apply.The tests of this subclause shall be applied to the detector at the grade in accordance with Table 1.6
46、.6.2Prevention of unauthorised access to the connections or components within thedetector Attempt to overcome the tamper detection device by deliberate attack with normally available objectsas listed in AnnexC, by distorting the housing or byattempting to access the connections orcomponents within t
47、he detector without causing visible external damage. Grade dependency appearsin Table 1. Monitor the outputs of the detector.Pass/Fail criteria: Where there is no physical damage to the detector, a tamper signal or message shall be generated before access is gained to any circuit connection or contr
48、ol that can adjust theperformance of the detector6.6.3Detection of removal from the mounting surfaceThe object of this test is to confirm the operation of the tamper device by removing the detector fromthe mounting surface. Place the unit on the mounting surface without the fixing screws, unless the
49、y form a part of the tamperdetection device.Slowly prise the detector away from the mounting surface and attempt to prevent the tamper devicefrom operating byinserting a strip of steel between 100 mm and 200mm long by 10 mm to 20 mmwide, and 1 mm thick between the rear of the detector and its mounting surface. Attempt to gainaccess to the circuit connections or controls. Monitor the outputs of the detector.Pass/Fail criteria: A tamper signal or message shall be generated before the tamper device can beinhibited or access is gained to any circuit connection or
