1、BRITISH STANDARD BS 4737-3.9: 1978 Reprinted, incorporating Amendment No. 1 Specification for Intruder alarm systems in buildings Part 3: Requirements for detection devices Section 3.9 Pressure mats UDC 696.6:654.924.36:531.421BS 4737-3.9:1978 This British Standard, having been prepared under the di
2、rection of the Electronic Equipment Standards Committee, was published under the authority of the Executive Board on 30 November 1978 BSI 12-1998 First published April 1971 First revision November 1978 The following BSI references relate to the work on this standard: Committee reference EEL/27 Draft
3、 for comment 74/25543 DC ISBN 0 580 10360 9 Cooperating organizations The Electronic Equipment Standards Committee, under whose direction this British Standard was prepared, consists of representatives from the following Government department and scientific and industrial organizations: British Broa
4、dcasting Corporation British Electrical and Allied Manufacturers Association British Radio Equipment Manufacturers Association Cable Television Association of Great Britain Department of Prices and Consumer Protection Electrical, Electronic, Telecommunication and Plumbing Union Electricity Supply In
5、dustry in England and Wales Electronic Components Board Electronic Engineering Association* Engineering Equipment Users Association Institution of Electronic and Radio Engineers Post Office* Radio and Electronic Component Manufacturers Federation Scientific Instrument Manufacturers Association The o
6、rganizations marked with an asterisk in the above list, together with the following, were directly represented on the committee entrusted with the preparation of this British Standard: Association of Burglary Insurance Surveyors Association of Chief Police Officers British Insurance Association Brit
7、ish Railways Board British Security Industry Association Department of the Environment Home Office Independent Burglar Alarm Association Lloyds Syndicates Survey Department Metropolitan Police Ministry of Defence National Supervisory Council for Intruder Alarms Telecommunication Engineering and Manu
8、facturing Association The Committee of London Clearing Bankers on behalf of the Committee of Scottish Clearing Bankers, Co-operative Bank, Central Trustee Savings Bank and Yorkshire Bank Amendments issued since publication Amd. No. Date of issue Comments 3253 March 1980 Clause 9 deletedBS4737-3-3.9:
9、1978 BSI 12-1998 i Contents Page Cooperating organizations Inside front cover Foreword ii 1 Scope 1 2 References 1 3 Definitions 1 4 Area requirement 1 5 Construction 1 6 Circuit configuration 1 7 Operating pressure 1 8 Environment 1 Standards publications referred to Inside back coverBS 4737-3-3.9:
10、1978 ii BSI 12-1998 Foreword This revision of BS4737 has been prepared under the direction of the Electronic Equipment Standards Committee to reflect the technical advances in the industry since the publication of the 1971 edition. It takes account of AmendmentNo.1,1972(AMD 1064) and of Amendment No
11、.2,1973 (AMD 1218). It is being published in a number of separate Sections, as follows. Part 1: Requirements for systems with audible signalling only; Section 1.1: Installation; Section 1.2: Maintenance and records; Part 2: Requirements for systems with remote signalling; Section 2.1: Installation;
12、Section 2.2: Maintenance and records; Part 3: Requirements for detection devices, consisting of a number of separate Sections (3.1 to 3.14). The specifications for detection devices (including this Section of BS 4737) are to be read in conjunction with Section 1.1 or Section 2.1, as appropriate. A B
13、ritish Standard does not purport to include all the necessary provisions of a contract. 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 f
14、ront cover, an inside front cover, pages i and ii, pages 1 and 2, an inside back cover and 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 theinside front cover.BS4737-3.9:1978 BSI 12-1998 1
15、1 Scope This British Standard specifies the general requirements for pressure mats to be used in intruder alarm systems in buildings. 2 References The titles of the standards publications referred to in this standard are listed on the inside back cover. 3 Definitions For the purposes of this British
16、 Standard, the following definitions apply in addition to those given in BS4737-1.1 and/or BS4737-2.1. 3.1 pressure mat a detection device, in the form of a mat, designed to generate an alarm condition when the weight of a person is placed upon it 3.2 operational area the portion of the pressure mat
17、 on any part of which a force of not less than 100N applied normal to its surface by means of a solid circular test disc of diameter 605mm produces an alarm condition 4 Area requirement The manufacturer shall state the dimensions of the operational area of the pressure mat. 5 Construction The outer
18、surfaces of the pressure mat shall be made of a material which offers flexibility and resistance to abrasion at least equivalent to plasticized PVC sheet 0.3mm thick. The construction of the detector shall be such that the mat returns readily to its normal state after the removal of a force generati
19、ng an alarm condition. Provision shall be made for fixings to prevent movement after installation. 6 Circuit configuration The detector shall be a closed-circuit device, or an open-circuit device in which each internal conductor is monitored as part of a double-pole closed-circuit, or an open-circui
20、t device with a single conductor closed-circuit monitoring loop within its enclosure. NOTEFor details of the connection to detection circuits, see4.1.1 of BS4737-2.1:1977. 7 Operating pressure An alarm condition shall be generated by any force of not less than 100N applied normal to the surface of t
21、he pressure mat by means of a solid circular test disc of diameter 605mm, and shall not be generated by any force less than 20N applied by the same means. 8 Environment The requirements of this British Standard shall be met by the detector under any combination of the following environmental conditi
22、ons. The detector shall be sealed such that it continues to function in accordance with the requirements of this specification during and after being totally immersed under not less than 100mm of water for a period of 24h. Temperature: 0 C to 40C Relative humidity: 10% to 90%2 blankBS4737-3.9:1978 B
23、SI 12-1998 Standards publications referred to BS 4737, Specification for intruder alarm systems in buildings. BS 4737-1, Requirements for systems with audible signalling only. BS 4737-1.1, Installation. BS 4737-1.2, Maintenance and records 1) . BS 4737-2, Requirements for systems with remote signall
24、ing. BS 4737-2.1, Installation. BS 4737-2.2, Maintenance and records 1) . BS 4737-3, Requirements for detection devices. BS 4737-3.1, Continuous wiring 1) . BS 4737-3.2, Foil on glass. BS 4737-3.3, Protective switches. BS 4737-3.4, Radiowave Doppler detectors. BS 4737-3.5, Ultrasonic movement detect
25、or. BS 4737-3.6, Acoustic detectors. BS 4737-3.7, Passive infra-red detectors. BS 4737-3.8, Volumetric capacitive detectors. BS 4737-3.10, Vibration detectors. BS 4737-3.11, Rigid printed-circuit wiring. BS 4737-3.12, Beam interruption detectors. BS 4737-3.13, Capacitive proximity detectors. BS 4737
26、-3.14, Deliberately-operated devices. 1) Referred to in the foreword only.BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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