Modern fire alarm technology can really reduce
the on-site labour time, making the pressured final
installation process towards the end of a building
project far simpler and quicker.
False alarms are also reduced by the new
devices as they enable systems to be far more
flexible. If a basic sensor is causing false alarms
(for example if steam is present) in a specific room,
it is simple to replace that device with a more
sophisticated model to provide advanced detec-
tion. Similarly, if increased audibility, a voice
message or a strobe is required, then a simple
device change can meet this requirement.
Such devices can also include a short circuit
isolator to reduce disruption if faults occur, also
making repair work far more straightforward.
More innovative systems such as Gent's S-Quad
include these isolators in every device, maintaining
100 per cent integrity if a cable fault occurs. It also
lets the contractor have the freedom to install the
system in the easiest way possible, without having
to consider where short circuit isolators have to be
installed every time the cabling enters or leaves a
zone.
Loop-powered sensors and sounders make
modern systems more reliable and efficient, pro-
viding greatly increased capacity for up to 200
devices on each loop.
The move driven by the British Standards to
install reduced volume in every room � as opposed
to ear-splitting corridor alarms needing to reach
people in several rooms nearby � creates a more
even spread of alarm noise around the building.
This is possible and far less expensive than may
first be apparent, as sensors in each room are now
able to double up as sounders as well. As a result,
up to eight devices may be provided for the same
price of just one traditional sounder and its own
cabling and installation.
The fire industry has been working hard to
respond to the challenge of cost, meeting the
requirements of the current economic climate.
Innovation and technology are resulting in intelli-
gent solutions which reduce the disruption of false
alarms, give far greater alarm system flexibility and
keep prices at a minimum. IFP
INTERNATIONAL FIRE PROTECTION 85
FIRE ALARM SYSTEMS COST KEPT IN CHECK
FIRE DETECTION TECHNOLOGY
Mark Ayton is the Managing
Director of Gent by
Honeywell and has worked
for the company for eight
years. He is also a member of
the Fire Industry Association
Board.
Modern fire alarm technology
can really reduce the on-site
labour time, making the
pressured final installation
process towards the end of a
building project far simpler
and quicker.

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