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1、BRITISH STANDARD BS 4737-4.2: 1986 Intruder alarm systems in buildings Part 4: Codes of practice Section 4.2 Code of practice for maintenance and records UDC 696.6:654.924.3.004.54 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 30 08:24:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 4737-4.2:
2、1986 This British Standard, having been prepared under the direction of the Furniture and Household Equipment Standards Committee, was published under the authority of the Board of BSI and comes into effect on 28 February 1986. BSI 11-1998 First published as BS 4737 Section 1.2 February 1978 and Sec
3、tion 2.2 May 1977 Combined first revision, published as Section 4.2, February 1986 The following BSI references relate to the work on this standard: Committee reference FHM/45 Draft for comment 84/38395 DC ISBN 0 580 14750 9 Committees responsible for this British Standard The preparation of this Br
4、itish Standard was entrusted by the Furniture and Household Equipment Standards Committee (FHM/-) to Technical Committee FHM/45, upon which the following bodies were represented: Association of Burglary Insurance Surveyors Association of Chief Police Officers of England and Wales British Insurance A
5、ssociation British Railways Board British Retailers Association British Security Industry Association British Telecommunications plc Committee of London Clearing Bankers on behalf of London and Scottish Clearing Banks and Yorkshire Bank Construction Security Advisory Service Consumer Standards Advis
6、ory Committee of BSI Department of the Environment (Property Services Agency) Electrical Installation Equipment Manufacturers Association (BEAMA Ltd.) Electricity Supply Industry in England and Wales Electronic Engineering Association Home Office Home Office Crime Prevention Centre Inspectors Approv
7、ed Alarm Installers Institution of Electrical and Electronics Incorporated Engineers Lloyds Syndicates Survey Department Metropolitan Police Ministry of Defence National Association of Goldsmiths of Great Britain and Ireland National Supervisory Council for Intruder Alarms Limited Post Office Royal
8、Institute of British Architects Telecommunication Engineering and Manufacturing Association (TEMA) Tobacco Advisory Council Wine and Spirit Security Liaison Ltd. Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 30 08:24:09 GMT+00:0
9、0 2006, Uncontrolled Copy, (c) BSI BS 4737-4.2:1986 BSI 11-1998i Contents Page Committees responsibleInside front cover Forewordii 1Scope1 2Definitions1 3Maintenance1 4Records3 Publications referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 30 08:24:09 GMT+00:00 2006, U
10、ncontrolled Copy, (c) BSI BS 4737-4.2:1986 ii BSI 11-1998 Foreword This Section of BS 4737 has been prepared under the direction of the Furniture and Household Equipment Standards Committee. The requirements for the maintenance and records of intruder alarm systems in buildings were originally publi
11、shed as BS 4737-1.2 and BS 4737-2.2 and these are combined and re-issued in code of practice form in conjunction with the revision of BS 4737-1.2 and BS 4737-2.2 are withdrawn. The main objectives of BS 4737 are to maximize the effectiveness of intruder alarm systems in respect of the detection and
12、signalling of unauthorized intrusions and to minimize the incidence of false alarms. BS 4737 is being revised and published in Parts as follows. Part 1: Specification for installed systems with local audible and/or remote signalling; Part 2: Specification for installed systems for deliberate operati
13、on; Part 3: Specification for components (incorporating a revision of the existing Sections 3.1 to 3.14 of BS 4737); Part 4: Codes of practice; Part 5: Glossary of terms. It should be recognized that no intruder alarm system, however well designed and maintained, can possibly be completely reliable
14、or tamper-proof. The successful operation of an intruder alarm system requires the active cooperation of the subscriber in carrying out the necessary procedures carefully and thoroughly, including regular preventative maintenance. The usefulness of the whole system can be jeopardized by lack of care
15、. This care has to be extended to the security of keys and of information regarding the system, its installation and method of operation. The Control of Noise (Code of Practice on Noise from Intruder Alarms) Order 1981 gives guidance on methods for reducing the incidence of nuisance caused by audibl
16、e alarms. Action may be taken under the Control of Pollution Act 1974 or the Pollution Control and Local Government (Northern Ireland) Order 1978 against anyone causing an audible alarm to sound unnecessarily. A British Standard does not purport to include all the necessary provisions of a contract.
17、 Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 4, an inside back cover a
18、nd a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 30 08:24:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 4737-4
19、.2:1986 BSI 11-19981 1 Scope This Section of BS 4737 gives recommendations for the preventative and corrective maintenance of, and keeping of records for, intruder alarm systems in buildings. It covers the range of systems specified in BS 4737-1 and BS 4737-21). NOTEThe titles of the publications re
20、ferred to in this Section of BS 4737 are listed on the inside back cover. 2 Definitions For the purposes of this Section of BS 4737, the definitions given in BS 4737-1 apply, together with the following. 2.1 Maintenance 2.1.1 maintenance company an organization prepared to maintain an installed intr
21、uder alarm system 2.1.2 preventative maintenance routine servicing of a system, carried out on a scheduled basis 2.1.3 corrective maintenance emergency servicing of a system, or part thereof, carried out in response to the development of a fault 2.2 false alarm an alarm condition generated and/or si
22、gnalled without evidence of intrusion or attempted intrusion 2.3 commissioning the completion of installation and final testing of a system prior to its handover to the subscriber 3 Maintenance 3.1 General 3.1.1 It is recommended that maintenance should be carried out by the installing alarm company
23、 but, whatever arrangements are made, the maintenance company should have the means, including spare parts, to meet all of the recommendations given in this clause. NOTEThis recommendation does not place an obligation upon customers who purchase their alarm systems to have them maintained by the ins
24、talling company; maintenance is a matter of agreement between the customer and the installing company or a separate maintenance company. 3.1.2 The preservation of security within the maintenance company is of paramount importance and steps should be taken to ensure the safe custody of all equipment
25、and documentation pertaining to installations. A maintenance company should ensure that adequate vetting of employees is carried out and that all employees carry identification cards which should include a photograph of the bearer, his signature and the companys name. 3.1.3 Each engineer employed by
26、 the maintenance company should carry a range of tools, test instruments and other equipment to enable him to perform his functions satisfactorily. Specialist tools, test equipment and plant should be available for deeper investigation as necessary. NOTENot all eventualities can be foreseen and, in
27、exceptional circumstances, a system or part(s) of a system may have to be left inoperable whilst tools or replacement components are obtained. 3.1.4 The maintenance companys organization should be so staffed as to ensure that the recommendations of this Section of BS 4737 can be met at all times. Th
28、e following factors should be taken into consideration: a) the number of installations to be serviced; b) the complexity of the installations; c) the geographical spread of the installations in relation to the location of the maintenance company, its branches and its service engineers; d) the method
29、 of calling out engineers outside normal office hours. 3.1.5 Engineers should be adequately trained on recruitment and this training should be updated when appropriate. 3.2 Preventative maintenance 3.2.1 Frequency of visits 3.2.1.1 Local audible only systems using mains and rechargeable battery stan
30、dby power supply. Preventative maintenance visits to the protected premises should be made by a representative of the maintenance company during or before the twelfth calendar month following the month of commissioning or of the previous preventative maintenance visit. 3.2.1.2 Local audible only sys
31、tems using primary battery only or rechargeable battery only power supplies. Preventative maintenance visits to the protected premises should be made by a representative of the maintenance company during or before the sixth calendar month following the month of commissioning or of the previous preve
32、ntative maintenance visit. 1) Revision in preparation. Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 30 08:24:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 4737-4.2:1986 2 BSI 11-1998 3.2.1.3 Remote signalling systems. Preventative maintenance visits to the protected premises should be made
33、 by a representative of the maintenance company during or before the sixth calendar month following the moth of commissioning or of the previous preventative maintenance visit. 3.2.2 Inspection 3.2.2.1 During each preventative maintenance visit, inspection of the following, with all necessary tests,
34、 and those rectifications which are practical at the time, should be carried out: a) the installation, location and siting of all equipment and devices against the system record (see 4.2); b) the satisfactory operation of all sensors, detectors and processors, including deliberately operated devices
35、; c) all flexible connections; d) the normal and standby power supplies, for correct functioning; e) the control equipment, in accordance with the alarm company procedure; f) the operation of every audible warning device in the system; g) the operation and intelligibility of any automatic dialling e
36、quipment connected to the system; h) the operation of any digital communicator connected to the system; i) the operation of any direct line signalling equipment connected to the system; In addition to the above inspections, a full operational test of the intruder alarm system should be carried out.
37、3.2.2.2 Those items of inspection and rectification which are not carried out during the preventative maintenance visit should be completed within a period of 21 days. 3.2.2.3 Those parts of a system or any environmental conditions which are found during preventative maintenance to be the potential
38、cause of false alarms, or reduced security, should be identified on the maintenance visit record (see 4.4). 3.3 Corrective maintenance 3.3.1 An emergency service should be available at all times. The subscriber should be kept informed of the address and telephone number of the maintenance companys e
39、mergency service facility. 3.3.2 The emergency service facility should be so located and organized that, except under abnormal circumstances, the maintenance companys representative should reach the protected premises within 4 h from the request to attend. This period may be lengthened with installa
40、tions on off-shore islands and those with local audible alarms only; the lengthened period should be agreed in writing by the subscriber and subject to the approval of any insurer involved. The period may also be lengthened at the subscribers request which should be in writing or, in the case of a t
41、emporary request, subsequently confirmed in writing. 3.4 Resetting after an alarm 3.4.1 Resetting of a remote signalling system following an alarm should be carried out by a member of the maintenance companys staff, or by a person authorized by the maintenance company, who should be suitably trained
42、 by the company to identify the cause of the alarm and to reset the equipment. 3.4.2 Where remote signalling is to a central station, resetting may be carried out by the central station in conjunction with the subscriber, following satisfactory identification by an agreed security discipline, provid
43、ed that the cause of the alarm has been clearly described by the subscriber to the central station and that corrective maintenance is not required. 3.4.3 The maintenance company should arrange to be informed as soon as possible if a system is reset other than by their own personnel. NOTERecommendati
44、ons concerning the resetting of remote signalling systems are subject to local circumstances and police force policies. 3.5 False alarms 3.5.1 Every attempt should be made to determine and correct the cause of a false alarm. After the occurrence of a false alarm, inspections and all necessary tests,
45、 as appropriate, should be carried out, by the maintenance company, on the following. a) The subscribers operational procedure, including securing of premises, setting of the system and whether all persons involved with setting and unsetting the system are fully conversant with the procedures. b) Th
46、e premises, for any change of use or structural changes, electrical supplies or work which could affect the alarm system. Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 30 08:24:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 4737-4.2:1986 BSI 11-19983 c) Any possible sources of environmental
47、interference, e.g. heating systems, automatic lighting control and radio frequency interference. d) The correct operation of the system, in particular: 1) control equipment; 2) power supply, including standby batteries; 3) movement detectors, by walk tests, ensuring that the range is properly set; 4
48、) beam interruption detectors, ensuring that beams are not likely to be obstructed; 5) point detectors, ensuring that protected doors and windows are physically secure when closed; 6) interconnecting wiring and connections; 7) warning devices; ensuring correct operation and connections to audible al
49、arms are satisfactory; 8) remote signalling devices; ensuring correct operation and satisfactory connections to telecommunications lines; 9) all tamper circuit connections; 10) equipment related to exit/entry routes including final exit/first entry locks and switches. If necessary, an event recorder should be installed to provide information about activations. 4 Records 4.1 General The maintenance company should establish, retain and maintain a system of records relating to the intruder alarm system including the information required by 4.2 to 4.6. It is esse
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