1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-24131-5 SANS 60839-2-4:2010Edition 1IEC 60839-2-4:1990Edition 1SOUTH AFRICAN NATIONAL STANDARD Alarm systems Part 2: Requirements for intr
4、uder alarm systems Section 4 Ultrasonic Doppler detectors for use in buildings This national standard is the identical implementation of IEC 60839-2-4:1990 and is adopted with the permission of the International Electrotechnical Commission. WARNING Can only be used in conjunction with SANS 60839-1-1
5、 and SANS 60839-2-2. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 60839-2-4:2010 Edition 1 IEC 60839-2-4:1990 Edition 1 Table of changes Change No. Date Scope National foreword This
6、South African standard was approved by National Committee SABS TC 68, Electrical and electronic security systems, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in March 2010. NORMEINTERNATIONALEINTE
7、RNATIONALSTANDARDSystemes dalarmeCEIIEC60839-2-4Premiere editionFirst edition1990-07Partie 2:Prescriptions pour les systemes dalarmeanti-intrusionSection 4 - Detecteurs a ultrasons a effetDoppler-Fizeau utilises dans les batimentsAlarm systemsPart 2:Requirements for intruder alarm systemsSection 4 -
8、 Ultrasonic Doppler detectorsfor use in buildings IEC 1990 Oroits de reproduction reserves - Copyright - all rights reservedAucune partie de celte publication ne peut etre reproduite niutilisee sous quelque forme que ce soit et par aucunprocede, electronique au mecanique, y compris la photo copie et
9、 les microfilms, sans Iaccord ecrit de lediteur.No part of this pUblication may be reproduced or utilized inany form or by any means, electronic or mechanical,including photocopying and microfilm, without permission inwriting from the publisher.International Electrotechnical Cc.mmission 3, rue de Va
10、rembe Geneva, SwitzerlandTelefax: +41 229190300 e-mail: inmailiec.ch IEC web site http: Ilwww.iec.chPour prix, voir catalogue en vigueurFor price, see current catalogueCommission Electrotechnique InternationaleInternational Electrotechnical CommissionMeH,IlYHapO,llHaR 3neKTpOTeXHI14eCKaR HOMI1CCI1R=
11、.CODE PRIXPRICE CODEKSANS 60839-2-4:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .839-2-4 IEC - 3 -CONTENTSPageFOREWORD. 5PREFACE. 5Clause1.2.3.4.5.6.Scope .Normative references .Defi nitionsGeneral considerations .Requirements .Test pr
12、ocedures .77991115SANS 60839-2-4:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .839-2-4 I EC - 5 -INTERNATIONAL ELECTROTECHNICAL COMMISSIONALARM SYSTEMSPart 2: Requirements for intruder alarm systemsSection 4 - Ultrasonic Doppler detecto
13、rsfor use in buildingsFOREWORDI) The formal decisions or agreements of the IEC on technical matters,prepared by Technical Committees on which all the National Committeeshaving a special interest therein are represented, express, as nearlyas possible, an international consensus of opinion on the subj
14、ectsdealt with.2) They have the form of recommendations for international use and theyare accepted by the National Committees in that sense.3) In order to promote international unification, the IEC expresses thewish that all National Committees should adopt the text of the IECrecommendation for thei
15、r national rules in so far as nationalconditions will permit. Any divergence between the IEC recommendationand the corresponding national rules should, as far as possible, beclearly indicated in the latter.PREFACEThis standard has been prepared by IEC Technical Committee No. 79:Alarm systems.The tex
16、t of this standard is based upon the following documents:Six Months Rule Report on Voting79(CO)25 79(CO)35Full information on the voting for the approval of this standard can befound in the Voting Report indicated in the above table.SANS 60839-2-4:2010This s tandard may only be used and printed by a
17、pproved subscription and freemailing clients of the SABS .839-2-4 IEC - 7 -ALARM SYSTEMSPart 2: Requirements for intruder alarm systemsSection 4 - Ultrasonic Doppler detectorsfor use in buildings1. ScopeThis International Standard gives the specific requirements and testprocedures for ultrasonic Dop
18、pler detectors for use in intruder alarmsystems installed in buildings.This standard is an addition to the general requi rements fordetectors for use in intruder alarm systems as specified in IEC Publi cation 839-2-2, and it shall also be used in conjunction with thestandard for general requirements
19、 for alarm systems, IEC Publi cation 839-1-1.The object of this standard is to specify those requi rements forultrasonic Doppler detectors which will ensure that they will performsatisfactorily and minimize false alarms.2. Normative referencesThe following standards contain prOVISions which, th roug
20、h referencein this text, constitute provisions of this International Standard. Atthe time publication, the editions indicated were valid. All standardsare subject to revision, and parties to agreements based on thisInternational Standard are encou raged to investigate the possibility ofapplying the
21、most recent editions of the standards indicated below.Members of IEC and ISO maintain registers of cu rrently valid Inter national Standards.IEC Publications:68-1 (1988): Environmental testing, Part 1: General and guidance.839-1-1 (1988): Alarm systems, Part 1: General requirements. SectionOne - Gen
22、eral.839-1-3 (1988): Section Three - Environmental testing.839-2-2 (1987): Part 2: Requirements for intruder alarm systems.Section Two - Requirements for detectors - General.SANS 60839-2-4:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .8
23、39-2-4 IEC3. Definitions- 9 -For the purpose of this standard the following definitions apply inaddition to those given in the general requirements.3. 1 Ultrasonic Doppler detectorA detector which generates an alarm condition in response to thefrequency shift of the reflection of ultrasonic radiatio
24、n from a movingperson.3.2 SensorThe transmitting and receiving elements of the detector.3.3 Ultrasonic radiationA sonic radiation with a frequency above 22 kHz.3.4 Reference targetA person weighing between 50 kg and 70 kg and between 165 cm and180 cm in height, wearing a cotton overall.3.5 Boundary
25、of detection coverageThe furthest radial distances in all directions at which a referencetarget moving towards the detector will generate an alarm condition.3.6 Detection rangesThe detection ranges for given di rections are the radial distancesfrom the detector to the boundary of detection coverage.
26、4. General considerationsThe detector shall consist of one or more sensors and a processor.Each sensor shall be contained in one housing which may also includethe processor. Where facilities are included to permit more than onesensor to be connected to the processor, the tests required underClause 6
27、 shall be carried out with one sensor only.The detectors may have means incorporated to vary the shape of theboundary of coverage. Where such means are incorporated the testsrequired under Clause 6 shall be carried out with the normalequipment and setting but additional tests shall be carried out to
28、prove the manufacturers claims for the effects of these means.SANS 60839-2-4:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .839-2-4 lEe5. Requirements5. 1 Functional5.1.1 Frequency- 11 -The operating frequency of the detector shall be no
29、t less than22 kHz. Any radiation below 20 kHz shall be not more than 40 dBAat 0,5 m from the detector.5. 1.2 Boundary of detection coverageThe boundary of detection coverage achieved for any detector atmaximum range setting shall be at least equal to but not more than 25%greater than that given in t
30、he manufactu rers specifications.5.1.3 Signal processingThe detector shall generate an alarm condition as a result of thereference target moving towards the detector and within the boundaryof detection coverage for a distance of 3 m or 30% of the initialseparation, whichever is less. Movements of le
31、ss than 0,2 m shall notcause an alarm condition.5.1.4 Restoration following an alarm conditionFollowing an alarm condition and the cessation of the movement whichcaused it, the detector shall restore to its normal non-alarm conditionwithin 10 s.5. 1 . 5 Intermittent movementThe detector shall be cap
32、able of detecting intermittent movement ofthe reference target towards the detector with periods of movementwithin the detectable speed range of not less than 1 s and periods ofno movement not more than 5 s. An alarm condition shall occur withina distance of 5 m or 50% of the initial separation, whi
33、chever is less.5.1.6 Detectable speeds rangeThe detector shall be capable of detecting movement of the referencetarget in the direction of the detector at any speed from 0,3 to 3 m/s.5. 1 . 7 StabilityThe range of the detector shall not vary by more than 10% duringseven days of normal operation at a
34、 constant envi ronment.5. 1 .8 Tamper protectionTamper protection shall be fitted and shall generate an alarm condi tion whenever the container is opened sufficiently to give access toany controls or mechanical fixing.SANS 60839-2-4:2010This s tandard may only be used and printed by approved subscri
35、ption and freemailing clients of the SABS .839-2-4 lEe5. 1.9 Cable protection- 13 -Where a sensor and its processor are not located in the samehousing, the cable connecting them shall be considered to be part ofthe detector. It. shall be electrically monitored so that if a dis connection or short ci
36、rcuit of any conductors prevents alarm informa tion or a tamper alarm being received by the processor, the processoritself shall generate an alarm condition within 10 s.5.2 EnvironmentalNo additional requirements .5.3 SafetyNo additional requi rements .5.4 ReliabilityNo additional requirements.5.5 I
37、nterfaceNo additional requirements.5.6 ConstructionNo additional requi rements.5.7 Walk-test indicatorIf a walk-test indicator is fitted it shall be possible to restrict itsindication without opening the detector.5.8 Manufacturers specificationsIn addition to the general requirements in lEe Publicat
38、ion 839-2-2the manufacturer shall provide the following for each detector:aJ The boundary of detection coverage in the horizontal and verticalplanes for a speed of 1 mls measured as determined by the testgiven in Sub-clause 6.2.1. This may be provided in the form of apolar diagram.bJ The operating f
39、requency.c The detectable speed range if greater than that required by Sub clause 5.1.6.5.9 OptionsMeans may be provided to reduce the radiation of the detector whenits associated system is unset.SANS 60839-2-4:2010This s tandard may only be used and printed by approved subscription and freemailing
40、clients of the SABS .839-2-4 IEC - 15 -It shall be possible to restore the detector. to its full operationalcondition on request within 1 min. If these means are incorporatedwithin the detector there shall be an output available to the alarmsystem to indicate that the radiation is reduced.This outpu
41、t may take the form of an alarm condition.6. Test procedures6. 1 Test condItIonsThe tests shall be carried out in an area with a solid floor wheresurrounding structures do not affect the measured ranges by morethan 5%.The detector under test shall be mounted at the height recommendedby the manufactu
42、rer and in accordance with the manufacturers in structions. Where a range of fixing heights is given the tests shall becarried out at the upper and lower limits.The tests shall be carried out within the standard environmentalconditions for testing given in IEC Publication 68-1 but with thehumidity m
43、aintained between 40% and 60% r. h.6.2 Functional tests6.2. 1 Boundary of detection coverageThe reference target shall move towards the detector from beyondthe maximum range at a speed of approximately 1 m/s. The distancefrom the detector shall be measured when an alarm condition occurs. Itshall be
44、at least equal to but not more than 25% greater than thatgiven in the manufacturers specifications. The test shall be carriedout in at least seven uniformly spaced directions in both the horizontaland vertical planes. The vertical plane tests shall be carried out byturning the detector through 90 on
45、 the radiation axis.6.2.2 Response at constant speedThe reference target shall move towards the detector from directly infront of it at the boundary of detection coverage at a speed ofapproximately 1 m/s. An alarm condition shall not occur for a move ment of less than 0,2 m but shall occur within a
46、distance of 3 m or 30%of the radial separation, whichever is less.The test shall be carried out at speeds of approximately 0.3, 1 and3 mis, and the highest and lowest speed if the manufacturer specifiesa wider speed range.6.2.3 Restoration following an alarm conditionThe reference target shall move
47、towards the detector from directly infront of it at the boundary of detection coverage at a speed ofapproximately 1 m/s. The distance from the detector where the alarmcondition occurs shall be noted. The reference target shall then returnto the boundary of detection coverage.SANS 60839-2-4:2010This
48、s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .839-2-4 IEC - 17 -There shall then be a movement of a person or object other than thereference target sufficient to generate an alarm condition after whichthe movement should be stopped. After a furt
49、her 10 s the referencetarget shall move towards the detector at approximately 1 mls and thedistance from the. detector where the alarm condition occurs shall notvary from that found on the first part of this test by more than 10%.6.2.4 Response to intermittent movementThe reference target shall move towards the detector from directly infront of it at the boundary of detection coverage for a distance of1 m within 1 s and then stop for 5 s and then repeat the cycle. Thedetector shall generate an alarm condition before it moves 5 m or 50%of the separ
