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9.10.9.18.(2) | Application | Intent |
| OS1 |
| Objective | OS1 Fire Safety |
| Attribution | |
| Application | Application 1: Fans in individual fire compartments referred
to in Sentence 9.10.9.18.(1) that exhaust directly into ducts in vertical service spaces. This
applies to buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
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| Intent | Intent 1: To limit the probability that pressure from such fans will
overload the exhaust fan required at or near the exhaust outlet, which could
lead to the build-up of a positive pressure in the shared exhaust duct, which
could lead to smoke from a fire in one compartment being spread to another
compartment, which could lead to harm to persons in the other compartment.
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