Introduction to Fire Safety Management
Introduction to Fire Safety Management
Introduction to Fire Safety Management
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<strong>Introduction</strong> <strong>to</strong> <strong>Fire</strong> <strong>Safety</strong> <strong>Management</strong><br />
<strong>Fire</strong> shutters – there are occasions when it is not practicable<br />
<strong>to</strong> protect an opening in a compartment with normal<br />
doors. In order <strong>to</strong> protect a large opening in compartment<br />
walls and fl oors there are a number of systems that can<br />
be applied including:<br />
➤ <strong>Fire</strong> resisting roller shutters (FRRSs)<br />
➤ Sliding doors in large scale industrial applications<br />
➤ <strong>Fire</strong> curtains in, for example, the proscenium arch of<br />
a theatre.<br />
The principles of operation remain the same for all these<br />
systems. However, the most common method of protecting<br />
large openings is with FRRSs. FRRSs are commonly<br />
fi tted <strong>to</strong> protect openings, for example:<br />
➤ In kitchen walls<br />
➤ In party walls between two premises<br />
➤ Between fl oors in shops fi tted with escala<strong>to</strong>rs in<br />
corridors<br />
➤ Protecting atriums or escala<strong>to</strong>r wells<br />
➤ Protecting vehicle entry openings<br />
➤ Entrances <strong>to</strong> retail s<strong>to</strong>res from shopping malls<br />
➤ Escala<strong>to</strong>r hood shutters.<br />
FRRSs must be capable of being opened and closed<br />
manually by the fi re service in the direction of the<br />
approach when positioned across fi re fi ghting routes.<br />
Power operated FRRSs must be provided with a<br />
Declaration of Conformity and following installation should<br />
be CE labelled in accordance with the EC Machinery<br />
Directive. Power operated FRRSs also fall within the<br />
scope of the Supply of Machinery (<strong>Safety</strong>) Regulations<br />
1992. Where an FRRS is held in the open position there<br />
should be controlled descent when the au<strong>to</strong>matic selfclosing<br />
device operates.<br />
There must be a planned system of maintenance<br />
with items maintained in an effi cient state, kept in<br />
effi cient working order and in good repair. It is critical <strong>to</strong><br />
provide safe operation when it is intended <strong>to</strong> connect <strong>to</strong><br />
a remote smoke control or fi re alarm system, which may<br />
result in activation and operation while there are persons<br />
in the vicinity of the opening.<br />
Typically, FRRSs are tested/assessed for any<br />
period between 30 and 240 minutes depending on what<br />
classifi cation the manufacturer wishes <strong>to</strong> achieve for his<br />
product.<br />
Traditionally FRRSs have been manufactured from<br />
steel; recent innovation has seen the introduction of<br />
new products made from reinforced glass fi bre matting.<br />
Aluminium is often used in security rolling shutters but<br />
melts at circa 660ºC. In a standard fi re test it is likely<br />
that the temperature will exceed this melting point in<br />
184<br />
Figure 9.16 <strong>Fire</strong> shutter<br />
less than 10 minutes and hence it is not an appropriate<br />
material for FRRSs.<br />
All FRRSs should be fi tted with an au<strong>to</strong>matic selfclosing<br />
device. In cases where self-closing would be<br />
a hindrance <strong>to</strong> normal use, they can be held open by<br />
a local heat detection release mechanism such as a<br />
fusible link particularly where a FRRS has been permitted<br />
across a means of escape route. All doors installed<br />
in compartment walls which need <strong>to</strong> be held open in<br />
normal use, should be fi tted with an au<strong>to</strong>matic release<br />
mechanism which is connected directly <strong>to</strong> a local or<br />
remote smoke detection system and not rely on local<br />
fusible link for operation. The smoke detection system, if<br />
local, should have the detec<strong>to</strong>rs mounted on both sides<br />
of the compartment wall and should activate both visual<br />
and audible warnings and cause the door or shutter <strong>to</strong><br />
close au<strong>to</strong>matically without any delay.<br />
Passage of pipes, ventilation ducts, chimneys and<br />
other services<br />
In the same way as fi re spreading through concealed<br />
cavities presents a serious risk, buildings are also vulnerable<br />
<strong>to</strong> fi re spreading through compartment walls<br />
and fl oors as a result of openings in them that provide<br />
no resistance <strong>to</strong> fi re. When buildings are designed, built<br />
and managed it is vital that when pipes, ventilation ducts<br />
or other services pass through a compartment wall or<br />
fl oor they are provided with adequate ‘fi re s<strong>to</strong>pping’.