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1、 Reference number ISO 21927-3:2006(E) ISO 2006 INTERNATIONAL STANDARD ISO 21927-3 First edition 2006-11-15 Smoke and heat control systems Part 3: Specification for powered smoke and heat exhaust ventilators Systmes de contrle de fume et de chaleur Partie 3: Spcifications pour les ventilateurs mcaniq
2、ues dvacuation des fumes et de la chaleur Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Qatar Petroleum/5943408001 Not for Resale, 04/12/2007 02:04:29 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 21927-3:2006
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6、O 2006 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the
7、 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 ii ISO 2006 All rights reserved Copyright International Organization for Standardization Provided by IHS und
8、er license with ISO Licensee=Qatar Petroleum/5943408001 Not for Resale, 04/12/2007 02:04:29 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 21927-3:2006(E) ISO 2006 All rights reserved iii Contents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references. 1 3
9、Terms and definitions. 1 4 Design requirements 4 4.1 Application classes 4 4.2 Motor rating. 4 4.3 Motor specification. 4 4.4 Hot-gas fan 4 5 General testing procedures. 4 6 Performance requirements and classification. 5 6.1 Temperature/time classification 5 6.2 Flow and pressure 5 6.3 Outer surface
10、 temperature and cooling air temperature of insulated ventilators . 5 6.4 Wind load. 6 6.5 Snow load 6 6.6 Operation at low temperature 6 6.7 Reliability. 6 6.8 Performance data of ventilators 7 7 Marking 7 8 Evaluation of conformity 7 8.1 General. 7 8.2 Initial type testing . 7 8.3 Factory producti
11、on control 8 Annex A (normative) Type approval schedule for a range of ventilators 9 Annex B (normative) Type approval schedule for a product range of motors 16 Annex C (normative) Test method for performance of powered ventilators at high temperature 17 Annex D (normative) Test method for resistanc
12、e to temperature of electric motors for use in powered ventilators 23 Annex E (normative) Test method for operation under load. 27 Annex F (normative) Direct field of application for powered smoke- and heat-exhaust ventilators. 28 Bibliography. 29 Copyright International Organization for Standardiza
13、tion Provided by IHS under license with ISO Licensee=Qatar Petroleum/5943408001 Not for Resale, 04/12/2007 02:04:29 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 21927-3:2006(E) iv ISO 2006 All rights reserved Foreword ISO (the International Organization for Standardi
14、zation) 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 technical committee has been established has the right to b
15、e 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 of electrotechnical standardization. International Standa
16、rds are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Inter
17、national Standard requires approval by at least 75 % of the member bodies casting a vote. 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. ISO 21927-3
18、 was prepared by Technical Committee ISO/TC 21, Equipment for fire protection and fire fighting, Subcommittee SC 11, Smoke and heat control systems and components. ISO 21927 consists of the following parts, under the general title Smoke and heat control systems: Part 1: Specification for smoke barri
19、ers Part 2: Specification for natural smoke and heat exhaust ventilators Part 3: Specification for powered smoke and heat exhaust ventilators Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Qatar Petroleum/5943408001 Not for Resale, 04/12/2007
20、 02:04:29 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 21927-3:2006(E) ISO 2006 All rights reserved v Introduction Smoke- and heat-exhaust ventilation systems create a smoke-free layer above the floor by removing smoke and thus improve the conditions for the safe esc
21、ape and/or rescue of people and animals and the protection of property and permit the fire to be fought while still in its early stages. They also exhaust hot gases released by a fire in the developing stage. The use of smoke- and heat-exhaust ventilation systems to create smoke-free areas beneath a
22、 buoyant smoke layer has become widespread. Their value in assisting in the evacuation of people from construction works, reducing fire damage and financial loss by preventing smoke logging, facilitating fire fighting, reducing roof temperatures and retarding the lateral spread of fire is firmly est
23、ablished. For these benefits to be obtained, it is essential that smoke- and heat-exhaust ventilators operate fully and reliably whenever called upon to do so during their installed life. A heat- and smoke-exhaust ventilation system is a scheme of safety equipment intended to perform a positive role
24、 in a fire emergency. It is important that components for smoke- and heat-exhaust systems be installed as part of a properly designed smoke and heat system. Smoke- and heat-exhaust ventilation systems help to keep the escape and access routes free from smoke, facilitate fire-fighting operations by c
25、reating a smoke-free layer, delay and/or prevent flashover and thus full development of the fire, protect equipment and furnishings, reduce thermal effects on structural components during a fire, reduce damage caused by thermal decomposition products and hot gases. Depending on the design of the sys
26、tem and the ventilator, powered or natural smoke and heat ventilators can be used in a smoke- and heat-control system. Powered smoke- and heat-exhaust ventilators can be installed in the roof or upper part of walls of buildings or in a ducted system with the ventilator inside or outside the smoke re
27、servoir or in a plant room. It is important that powered smoke- and heat-exhaust ventilation systems operate based on powered ventilators. The performance of a powered smoke- and heat-exhaust system depends on the temperature of the smoke, size, number and location of the exhaust openings, the wind
28、influence, size, geometry and location of the inlet air openings, the time of actuation, the location and conditions of the system (for example arrangements and dimensions of the building). Smoke- and heat-exhaust ventilation systems are used in buildings or construction works where the particular (
29、large) dimensions, shape or configuration make smoke control necessary. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Qatar Petroleum/5943408001 Not for Resale, 04/12/2007 02:04:29 MDTNo reproduction or networking permitted without license f
30、rom IHS -,-,- ISO 21927-3:2006(E) vi ISO 2006 All rights reserved Typical examples are single and multi-storey shopping malls, single and multi-storey industrial buildings and warehouses, atria and complex buildings, enclosed car parks, stairways, tunnels, theatres. Depending on differing circumstan
31、ces and the situation of the building or construction works that can affect their performance, powered or natural smoke- and heat-exhaust ventilation systems can be used. It is important that powered and natural exhaust ventilators not be used to extract smoke and hot gases from the same smoke reser
32、voir. Special conditions apply where gas extinguishing systems (e.g. in accordance with ISO 14520-1) are used. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Qatar Petroleum/5943408001 Not for Resale, 04/12/2007 02:04:29 MDTNo reproduction or
33、 networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 21927-3:2006(E) ISO 2006 All rights reserved 1 Smoke and heat control systems Part 3: Specification for powered smoke and heat exhaust ventilators 1 Scope This part of ISO 21927 specifies requirements and gives methods f
34、or testing powered smoke- and heat-exhaust ventilators that are intended to be installed as part of a powered smoke- and heat-exhaust ventilation system. It also provides a procedure for approving a range of powered smoke- and heat-exhaust ventilators and their motors, from a limited number of tests
35、. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 834-1, Fire resistan
36、ce tests Elements of building construction Part 1: General requirements ISO 5167 (all parts), Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full ISO 5221, Air distribution and air diffusion Rules to methods of measuring air fl
37、ow rate in an air handling duct ISO 5801, Industrial fans Performance testing using standardized airways ISO 10294-1, Fire resistance tests Fire dampers for air distribution systems Part 1: Test method ISO 13943, Fire safety Vocabulary ISO 21927-2:2004, Smoke and heat control systems Part 2: Specifi
38、cation for natural smoke and heat exhaust ventilators IEC 60034-1, Rotating electrical machines Part 1: Rating and performance IEC 60034-2, Rotating electrical machines Part 2: Methods for determining losses and efficiency of rotating electrical machinery from tests (excluding machines for traction
39、vehicles) 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 13943 and the following apply. 3.1 smoke- and heat-control system arrangement of components installed in a construction work to limit the effects of smoke and heat from a fire Copyright Intern
40、ational Organization for Standardization Provided by IHS under license with ISO Licensee=Qatar Petroleum/5943408001 Not for Resale, 04/12/2007 02:04:29 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 21927-3:2006(E) 2 ISO 2006 All rights reserved 3.2 smoke- and heat-exh
41、aust system smoke-control system that exhausts smoke and heat from a fire in a construction work or part of a construction work 3.3 smoke- and heat-exhaust ventilation system SHEVS components jointly selected to exhaust smoke and heat to establish a buoyant layer of warm gases above cooler, cleaner
42、air 3.4 natural ventilation ventilation caused by buoyancy forces due to differences in density of the gases because of temperature differences 3.5 powered ventilation ventilation caused by the positive displacement of gases through a ventilator NOTE Fans are usually used. 3.6 ventilator device for
43、enabling the movement of gases into or out of a construction work 3.7 exhaust ventilator device for the movement of gases out of the construction work 3.8 insulated motor motor thermally insulated from the environment which generally includes a motor casing 3.9 smoke- and heat-exhaust ventilator SHE
44、V device specially designed to move smoke and hot gases out of the construction work under conditions of fire 3.10 dual purpose ventilator smoke- and heat-exhaust ventilator that has provision to allow its use for comfort (i.e. day-to-day) ventilation 3.11 emergency ventilator smoke- and heat-exhaus
45、t ventilator that is not used for comfort (i. e. day-to-day) ventilation 3.12 automatically initiated powered smoke- and heat-exhaust ventilator powered smoke- and heat-exhaust ventilator that operates automatically after the outbreak of fire if called upon to do so 3.13 smoke reservoir region withi
46、n a building limited or bordered by smoke curtains or structural elements and which, in the event of a fire, retains a thermally buoyant smoke layer 3.14 hot-gas fan fan that is suitable for handling hot gases for a specified time/temperature profile Copyright International Organization for Standard
47、ization Provided by IHS under license with ISO Licensee=Qatar Petroleum/5943408001 Not for Resale, 04/12/2007 02:04:29 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 21927-3:2006(E) ISO 2006 All rights reserved 3 3.15 powered smoke- and heat-exhaust ventilator hot-gas
48、fan that is suitable for handling hot gases for a limited period only 3.16 powered roof ventilator partition fan designed for mounting on a roof and having exterior weather protection 3.17 insulated ventilator ventilator insulated to limit the external surface temperature to reduce the danger of injury to persons or damage to materials 3.18 smoke-reservoir ventilator ventilator suitable for operation fully immersed in a smo