1、 ISO 2014 Fire resistance tests Fire dampers for air distribution systems Part 4: Test of thermal release mechanism AMENDMENT 1: Specific performance requirement for thermal release mechanism based upon performance of thermal release mechanism used in ISO 10294-1 test specimen Essai de rsistance au
2、feu Clapets rsistant au feu pour systmes de distribution dair Partie 4: Mthode dessai du mcanisme de dclenchement thermique AMENDEMENT 1: Exigence de performance spcifique du mcanisme de dclenchement thermique fonde sur le mcanisme de dclenchement thermique utilis dans lprouvette dessai de lISO 1029
3、4-1 INTERNATIONAL STANDARD ISO 10294-4 First edition 2001-04-01 Reference number ISO 10294-4:2001/Amd.1:2014(E) AMENDMENT 1 2014-12-15 ISO 10294-4:2001/Amd.1:2014(E)ii ISO 2014 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2014 All rights reserved. Unless otherwise specified, no part of this
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5、country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ISO 10294-4:2001/Amd.1:2014(E) Foreword ISO (the International Organization for Standardization) is a worldwi
6、de 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 technical committee has been established has the right to be represented on tha
7、t 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 of electrotechnical standardization. The procedures used to develop this docu
8、ment 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 document was drafted in accordance with the editorial rules of the ISO/IEC Directiv
9、es, 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 such patent rights. Details of any patent rights identified during the developme
10、nt 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 does not constitute an endorsement. For an explanation on the meaning of ISO spe
11、cific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information The committee responsible for this document is ISO/TC 9 2 , Fire safety
12、, Subcommittee S C 2 , Fire containment. ISO 2014 All rights reserved iii Fire resistance tests Fire dampers for air distribution systems Part 4: Test of thermal release mechanism AMENDMENT 1: Specific performance requirement for thermal release mechanism based upon performance of thermal release me
13、chanism used in ISO 10294-1 test specimen Page 3, 4.2 Amendment adds new performance requirement for thermal release mechanism based upon performance of the thermal release mechanism used in ISO 10294 test specimen. The new requirement is contained in 4.2.2.1. The amendment places the existing perfo
14、rmance requirement for thermal release mechanisms in 4.2.2.2. The amendment reorganizes 4.2 by adding subclauses. The new material is underlined. Material being moved to a new location is represented by strike through. 4.2 Response behaviour 4.2.1 Starting at an initial temperature of (25 2) C, the
15、specimen shall be exposed to an increasing air temperature such that it follows the relationship (see Figure 3): T = (25 + 20t) 2 whereT is the temperature, in degrees Celsius;t is the time from the start of the test period, in minutes. The response threshold of the thermal release mechanism shall n
16、ot exceed an 80 C rise above the starting temperature. A 25 C initial temperature and 80 C maximum temperature rise means that the maximum temperature of activation (threshold limit) will be 105 C. This means that the thermal release mechanism shall operate within 4 min. This test may be applied to
17、other operating temperatures and guidance is given Annex B. The mean air velocity at the start of this test shall be (1 0,1) m/s. The test shall be performed three times for each orientation and location of the thermal release mechanism. The thermal release mechanism shall operate before the thresho
18、ld limit is exceeded on each of the samples tested. 4.2.2 The response threshold of the thermal release mechanism shall not exceed: 4.2.2.1 The time equaling the average of the threshold time +10 % determined from a minimum of three tests on thermal release mechanisms representative of the thermal r
19、elease mechanism used in the ISO 10294-1 test specimen. A thermal release mechanism that has been previously tested to ISO 10294-1 fire damper test shall be used to determine a threshold response time. Three thermal release mechanisms, selected from a batch of five, shall be evaluated using the meth
20、od described in this International Standard. The threshold response time shall be determined as the average response time of these three thermal release mechanism for each orientation required (see 6.1). Or ISO 10294-4:2001/Amd.1:2014(E) ISO 2014 All rights reserved 1 ISO 10294-4:2001/Amd.1:2014(E)
21、4.2.2.2 The time required for an 80 C rise above the starting temperature. A 25 C initial temperature and 80 C maximum temperature rise means that the maximum temperature of activation (threshold limit) will be 105 C. This means that the thermal release mechanism shall operate within 4 min. This test may be applied to other operating temperatures, and guidance is given in Annex B.2 ISO 2014 All rights reserved ISO 10294-4:2001/Amd.1:2014(E) ISO 2014 All rights reserved ICS 13.220.50; 91.140.30 Price based on 2 pages
