Back3.2.4.12.(1)

ATTRIBUTION:

Functional Statement:

F03

To retard the effects of fire on areas beyond its point of origin.

Objective:

OS1.2

 

APPLICATION:

Design, with respect to preventing the circulation of smoke, of air handling systems, where the air handling system serves more than one:
This applies to buildings described in Sentence 1.3.3.2.(1) of Division A in which fire alarm systems are installed.
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).

INTENT:

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.
To limit the probability that smoke originating from a fire in an air handling system will spread through the duct system, which could lead to harm to persons.