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3.2.4.18.(9) | Application | Intent |
OS1 |
Objective | OS1 Fire Safety |
Attribution | |
Application | Application 1: Silencing and restoration of audible signal devices
[forming part of a fire alarm system] located within dwelling
units, in buildings described in Sentence 1.3.3.2.(1) in which fire alarm systems are installed.
Application 2: This also applies to buildings to
which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application
of Part 9] in which fire alarm systems are installed, as stated in Sentence 9.10.18.6.(1).
Exceptions:
except as permitted by Sentence 3.2.4.18.(13), which applies
to automatic signal silencing for audible signal devices within dwelling
units that are wired on separate signal circuits.
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Intent | Intent 1: To supersede the requirements of Sentence 3.2.4.6.(2) and
permit manual silencing switches outside the fire alarm control unit, where
silenced audible signal devices automatically restore to normal operation
after 10 min. This is to limit the probability
that audible signal devices will:
This is to limit the probability of the signal devices not operating
in a fire situation, which could lead to persons not being promptly notified,
which could lead to delays in the evacuation or movement of persons to a safe
place, which could lead to harm to persons.
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