Componentsforsmoke controlsystems
Part8:Codeofpracticeforplanning design installation missioning andmaintenance
..makingexcellence ahabit
Publishing andcopyrightinformation
The BSI copyright notice displayed in this document indicates when the document was last issued.
The British Standards Institution 2013
Published by BSI Standards Limited 2013
ISBN 978 0 580 79709 5
ICS 13.220.01; 91.140.30
The following BSI references relate to the work on this document: Committee reference FSH/25Draft for ment 13/ DC
Publication history
First published December 2013
Contents
Forewordii
0 Introduction1 2 adoos Normative references3 4 Terms and definitions Documentation and responsibility 7 45 Determining requirements for a smoke control system 8 Planning and design 86 7 Installation 238 9 Maintenance and servicing 29 Commissioning documentation certification and acceptance 26
Annexes
Annex B (informative) Model certificates 33Annex C (informative) Model format of system logbook40positive pressures 42 Annex D (informative) Location of roof ventilators in areas potentially subject to
Bibliography 49
List of figures
Figure 1 Process for planning designing installing missioning and maintaining a smoke control system 2Figure C.1 - Sample logbook event recording table 41 Figure D.1 Effect of adjacent tall buildings: Section through building withFigure D.2 - Louvred ventilators installed in the vertical43 adjacent or adjoining high bay 42Figure D.3 - Louvred ventilators installed at an angle greater than 30° 44Figure D.4 - Single-flap ventilators installed at 0° 10° to the horizontal 45 Figure D.5 Single-flap top-hinged units installed at 10° 30° abovehorizontal 45Figure D.7-Single-flap top-hinged units installed at 10°- 30° above Figure D.6 - Bottom-hinged single-flap ventilators 46horizontal47 Figure D.8 Examples of types of ventilators probably leading to negativedischarge 48
List of tables
Table 1 -Fuel storage capacity 21Table 2 - Intervals between pipe supports 24
Summary of pages
This document prises a front cover an inside front cover pages i to li pages 1 to 50 an inside back cover and a back cover.
Foreword
Publishing information
This British Standard is published by BSI Standards Limited under licence fromThe British Standards Institution and came into effect on 31 December 2013. It was prepared by Technical Committee FSH/25 Smoke heat control systems andponents. A list of organizations represented on this mittee can beobtained on request to its secretary.
Informationabout thisdocument
Federation of Environmental Trade Associations. Copyright is claimed on these Annex D contains a number of figures reproduced by permission of thefigures. Copyright holders are the Federation of Environmental Trade Associations 2 Waltham Court Milley Lane Hare Hatch Reading Berkshire RG10 9TH.
Presentationalconventions
The provisions of this standard are presented in roman (i.e. upright) type. ItsAeixne edoud au yu u sauauas ui passadxa ae suoepuaoa verb is “should*.
Commentary explanation and general informative material is presented insmaller italic type and does not constitute a normative element.
The word *should* is used to express remendations of this standard. The o aee ue se a issad ssadxa o xa a u pasn s! e pothe primary remendation of the clause. The word *can* is used to expresspossibility e.g. a consequence of an action or an event.
Notes and mentaries are provided throughout the text of this standard.Notes give references and additional information that are important but do notform part of the remendations. Commentaries give background information.
Use of this document
remendations. It should not be quoted as if it were a specification and As a code of practice this British Standard takes the form of guidance andparticular care should be taken to ensure that claims of pliance are notmisleading.
Any user claiming pliance with this British Standard is expected to be able to justify any course of action that deviates from its remendations.
Departures from the remendations of this British Standard are possiblethrough consultation and discussion and with the agreement of all interested parties (see 5.2).
It has been assumed in the preparation of this British Standard that theexperienced people for whose use it has been produced.
Contractual and legalconsiderations
This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application.
Compliance with a British Standard cannot confer immunity from legal obligations.
0Introduction
Smoke control systems create and maintain a smoke-free layer above the floor released by a fire in the development stage. In doing this smoke control systems or help to reduce smoke and heat build-up by removing smoke and hot gaseshelp to:
a)keep escape and access routes free from smoke;c)delay and/or prevent flashover and thus full development of the fire;e)reduce thermal effects on structural ponents during a fire; and
b)facilitate firefighting operations;
d)protect equipment and furnishings;
f)reduce damage caused by thermal deposition products and hot gases.
The use of smoke control systems has bee widespread. Their value inassisting in the evacuation of buildings reducing fire damage and financial loss by preventing smoke logging facilitating firefighting reducing rooftemperatures and retarding the lateral spread of fire is firmly established. Forthese benefits to be realized however it is essential that smoke control systems operate fully and reliably whenever called upon to do so during their installedlife.
A smoke control system is made up of ponents that have generally been tested to recognized European and International standards and needs to beinstalled as part of a properly designed system. The most relevant standards ssystem implementation involves the selection of appropriate products suitablecontrolled in such a way as to meet the design criteria. deployment of these products and ensuring they are then interconnected and
The remendations for the design planning installation missioning useand maintenance of a smoke control system are set out in the order given in Figure 1.
The first step in the design process is to assess the needs of the building for asmoke control system (see Clause 5). When a decision is taken as to the type and purpose of the system the planning and detailed design process begins(Clause 6).
The third step is installation which includes mounting and interconnecting theponents (see Clause 7).
The fourth step is the missioning of the system and verification of correctoperation (see Clause 8).
Once the smoke control system is handed over to the relevant responsibleansa o paas e pa si as a eu od s a osa remains fully operational (Clause 9).
The statutory responsibilities for a smoke control systems are set out in Annex A. xa ooo s e o a e sd x Annex B provides model certificates for the various steps of an installation figures relating to the location of roof ventilators in areas potentially subject to positive pressures.
