1、 ISO 2017 Fire detection and alarm systems Part 18: Input/output devices Systmes de dtection et dalarme dincendie Partie 18: Dispositifs dentre/sortie INTERNATIONAL STANDARD ISO 7240-18 Second edition 2017-09 Reference number ISO 7240-18:2017(E) ISO 7240-18:2017(E)ii ISO 2017 All rights reserved COP
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4、.iso.org ISO 7240-18:2017(E)Foreword v Introduction vi 1 Scope . 1 2 Normative references 1 3 T erms, definitions and abbr e viat ed t erms 1 3.1 Terms and definitions . 2 3.2 Abbreviated terms . 2 4 Requirements 2 4.1 Compliance . 2 4.2 Monitoring of detachable devices . 2 4.3 Requirements for soft
5、ware controlled devices . 3 4.3.1 General 3 4.3.2 Software design. 3 4.3.3 Storage of programs and data 3 5 Tests . 3 5.1 General . 3 5.1.1 Atmospheric conditions for tests. 3 5.1.2 Mounting arrangements 3 5.1.3 Operating conditions for tests 4 5.1.4 Tolerances 4 5.1.5 Functional test . 4 5.1.6 Prov
6、ision for tests . 4 5.1.7 Test schedule . 4 5.2 Performance and variation in supply parameters 5 5.2.1 Object of test 5 5.2.2 Test procedure . 5 5.2.3 Requirements . 5 5.3 Dry heat (operational) 5 5.3.1 Object of test 5 5.3.2 Test procedure . 6 5.3.3 Requirements . 6 5.4 Cold (operational) 6 5.4.1 O
7、bject of test 6 5.4.2 Test procedure . 6 5.4.3 Requirements . 7 5.5 Damp heat, cyclic (operational) . 7 5.5.1 Object of test 7 5.5.2 Test procedure . 7 5.5.3 Requirements . 8 5.6 Damp heat, steady-state (endurance) . 8 5.6.1 Object of test 8 5.6.2 Test procedure . 8 5.6.3 Requirements . 9 5.7 Sulfur
8、 dioxide (SO 2 ) corrosion (endurance) . 9 5.7.1 Object of test 9 5.7.2 Test procedure . 9 5.7.3 Requirements 10 5.8 Shock (operational) .10 5.8.1 Object of test .10 5.8.2 Test procedure 10 5.8.3 Requirements 11 5.9 Impact (operational) .11 ISO 2017 All rights reserved iii Contents Page ISO 7240-18:
9、2017(E)5.9.1 Object of test .11 5.9.2 Test procedure 11 5.9.3 Requirements 12 5.10 Vibration, sinusoidal (operational) 12 5.10.1 Object of test .12 5.10.2 Test procedure 12 5.10.3 Requirements 13 5.11 Vibration, sinusoidal (endurance) 13 5.11.1 Object of test .13 5.11.2 Test procedure 13 5.11.3 Requ
10、irements 14 5.12 Electromagnetic compatibility (EMC) immunity tests 14 5.12.1 Object of test .14 5.12.2 Test procedure 14 5.12.3 Requirements 14 6 Test report 14 7 Marking .15 8 Data .15 8.1 Hardware documentation 15 8.2 Software documentation .16 iv ISO 2017 All rights reserved ISO 7240-18:2017(E)
11、Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a t
12、echnical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters
13、 of electrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This docum
14、ent was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all su
15、ch patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and do
16、es not constitute an endorsement. For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Tra
17、de (TBT) see the following URL: www.iso.org/iso/foreword.html. This document was prepared by Technical Committee ISO/TC 21, Equipment for fire protection and fire fighting, Subcommittee SC 3, Fire detection and alarm systems. This second edition cancels and replaces the first edition (ISO 7240-18:20
18、09), which has been technically revised with the following changes: in 5.12 (electromagnetic compatibility immunity tests), EN 50130-4 has been replaced by IEC 62599-2; marking has been moved to a new Clause 7; data and software requirements have been moved to a new Clause 8. A list of all the parts
19、 in the ISO 7240 series can be found on the ISO website. ISO 2017 All rights reserved v ISO 7240-18:2017(E) Introduction The term input/output devices, used in this document, covers a wide range of different types of devices that are intended for different applications and can, therefore, have diffe
20、rent functions. This document does not, therefore, include detailed functional requirements for the input/output devices but requires that their function is sufficiently specified by the manufacturer and that they function correctly in accordance with the manufacturers specification.vi ISO 2017 All
21、rights reserved Fire detection and alarm systems Part 18: Input/output devices 1 Scope This document specifies requirements, test methods and performance criteria for input/output devices connected to a transmission path of a fire detection and alarm system used to receive and/or transmit signals to
22、 or from the transmission path, necessary for the operation of the fire detection and fire alarm system and/or fire protection system. An input/output device can be a physically separate device or its function can be integrated into another device, in which case this document can be used to assess t
23、his function. This document is applicable to input/output devices which include signal amplifiers and signal transfer in separate enclosures. Control and indicating equipment and ancillary control and indicating equipment (e.g. repeater panels and fire brigade panels) are not covered by this documen
24、t. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (includ
25、ing any amendments) applies. ISO 7240-1, Fire detection and alarm systems Part 1: General and definitions IEC 60068-1, Environmental testing Part 1: General and guidance IEC 60068-2-1, Environmental testing Part 2-1: Tests Test A: Cold IEC 60068-2-2, Environmental testing Part 2-2: Tests Test B: Dry
26、 heat IEC 60068-2-6, Environmental testing Part 2-6: Tests Test Fc: Vibration (sinusoidal) IEC 60068-2-27, Environmental testing Part 2-27: Tests. Test Ea and guidance: Shock IEC 60068-2-30, Environmental testing Part 2-30: Tests Test Db: Damp heat, cyclic (12 h + 12 h cycle) IEC 60068-2-42, Environ
27、mental testing Part 2-42: Tests Test Kc: Sulphur dioxide test for contacts and connections IEC 60068-2-75, Environmental testing Part 2-75: Tests Test Eh: Hammer tests IEC 60068-2-78, Environmental testing Part 2-78: Tests Test Cab: Damp heat, steady state IEC 62599-2, Alarm systems Part 2: Electrom
28、agnetic compatibility Immunity requirements for components of fire and security alarm systems 3 T erms, d efinitions and abbr e viat ed t erms For the purposes of this document, the terms and definitions given in ISO 7240-1 and the following apply. INTERNATIONAL ST ANDARD ISO 7240-18:2017(E) ISO 201
29、7 All rights reserved 1 ISO 7240-18:2017(E) ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/ /www.electropedia.org/ ISO Online browsing platform: available at http:/ /www.iso.org/obp 3.1 T erms and definiti ons
30、 3.1.1 conditioning exposure of a specimen to environmental conditions in order to determine the effect of such conditions on the specimen 3.1.2 recovery treatment of a specimen, after conditioning (3.1.1), so that the properties of the specimen may be stabilized before measurement 3.2 A bbr e viat
31、ed t erms FDCIE fire detection control and indicating equipment EMC electromagnetic compatibility 4 Requirements 4.1 Compliance 4.1.1 In order to comply with this document, the input/output device shall: a) meet the requirements of Clause 4, which shall be verified by visual inspection or engineerin
32、g assessment, b) be tested as specified in Clause 5, and shall meet the requirements of the tests, and c) meet the requirements of Clauses 7 and 8, which shall be verified by visual inspection. 4.1.2 For input/output devices integrated into another device that is already covered by an existing part
33、of ISO 7240, the environmental conditioning shall be performed in accordance with that part of ISO 7240, with the addition of the functional tests before, during and/or after conditioning, as required in this document. In some detector standards, the dry heat (operational) test is conducted in speci
34、al test equipment (e.g. in the heat tunnel for heat detectors). The required functional testing of the integrated input/output device before, during and after the dry heat conditioning may be done with this equipment, if this is possible without disrupting the detector measurements. Otherwise, a sep
35、arate dry heat test, with the same conditioning, shall be conducted. For heat detectors, the test temperature is the maximum application temperature. 4.2 Monit oring of deta chable de vic es If an input/output device is detachable (i.e. it is attached to a detachable mounting base), then a means sha
36、ll be provided for a remote monitoring system (e.g. the FDCIE) to detect the removal of the device from the base, in order to give a fault signal.2 ISO 2017 All rights reserved ISO 7240-18:2017(E) 4.3 Requirements for software controlled devices 4.3.1 General For input/output devices that rely on so
37、ftware control in order to fulfil the requirements of this document, the requirements of 4.3.2 and 4.3.3 shall be met. 4.3.2 Software design In order to ensure the reliability of the device, the following requirements for software design shall apply. a) The software shall have a modular structure. b
38、) The design of the interfaces for manually and automatically generated data shall not permit invalid data to cause error in the program operation. c) The software shall be designed to avoid the occurrence of deadlock of the program flow. 4.3.3 Storage of programs and data 4.3.3.1 The program necess
39、ary to comply with this document and any preset data, such as manufacturers settings, shall be held in non-volatile memory. Writing to areas of memory containing this program and data shall be possible only by the use of some special tool or code and shall not be possible during normal operation of
40、the device. 4.3.3.2 Site-specific data shall be held in memory that can retain data for at least two weeks without external power to the device, unless provision is made for the automatic renewal of such data, following loss of power, within 1 h of power being restored. 5 Tests 5.1 General 5.1.1 Atm
41、ospheric conditions for tests 5.1.1.1 Unless otherwise stated in a test procedure, carry out the testing after the test specimen has been allowed to stabilize in the standard atmospheric conditions for testing as specified in IEC 60068-1 as follows: temperature: (15 to 35) C; relative humidity: (25
42、to 75) %; air pressure: (86 to 106) kPa. 5.1.1.2 The temperature and humidity shall be substantially constant for each environmental test where the standard atmospheric conditions are applied. 5.1.2 Mounting arrangements The specimen shall be mounted by its normal means of attachment in accordance w
43、ith the manufacturers instructions. If these instructions describe more than one method of mounting, then the method considered to be most unfavourable shall be chosen for each test. ISO 2017 All rights reserved 3 ISO 7240-18:2017(E) 5.1.3 Operating conditions for tests 5.1.3.1 If a test method requ
44、ires that a specimen be operational, then the specimen shall be connected to suitable supply and monitoring equipment with characteristics as required by the manufacturers data. Unless otherwise specified in the test method, the supply parameters applied to the specimen shall be set within the manuf
45、acturers specified range(s) and shall remain substantially constant throughout the tests. The value chosen for each parameter shall normally be the nominal value or the mean of the specified range. 5.1.3.2 The details of the supply and monitoring equipment used shall be given in the test report (see
46、 Clause 6). 5.1.4 Tolerances 5.1.4.1 Unless otherwise stated, the tolerances for the environmental test parameters shall be as given in the basic reference standards for the test, e.g. the relevant parts of IEC 60068-2. 5.1.4.2 If a requirement or test procedure does not specify a tolerance or devia
47、tion limits, then deviation limits of 5 % shall be applied. 5.1.5 Functional test Each function of the input/output device shall be activated by a suitable means in accordance with the manufacturers specification and appropriate observations or measurements shall be made to confirm the correct opera
48、tion of the device. NOTE The variety and the diversity of the equipment within the scope of this document make it difficult to define the precise details of this functional test. This functional test is intended to exercise each function of the device in a simple way. A more complete assessment of t
49、he performance of these functions, in accordance with the manufacturers specification, is made in the performance and variation in supply voltage test (see 5.2). 5.1.6 Provision for tests 5.1.6.1 Twelve specimens are required to conduct the tests as indicated in the test schedule (see 5.1.7). These specimens shall be numbered 1 to 12 arbitrarily. 5.1.6.2 The number of specimens may be reduced to a minimum of nine if the same specimen is used for more than one EMC test (see footnote
