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3.2.4.13.(1)
OS1
ObjectiveOS1 Fire Safety
Attribution
Application
Application 1: 
Shutting down central vacuum cleaning systems in buildings described in Sentence 1.3.3.2.(1) of Division A 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).
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Intent
Intent 1: 
To limit the probability of the spread of smoke between storeys, suites or fire compartments by means of an air handling system, which could lead to harm to persons.
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