ARCHIVED - 3.3.5.3.(2)

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3.3.5.3.(2)


Objective	OS1 Fire Safety
Attribution	[F06-OS1.5,OS1.2] Applies to the separation of entrances to basements and to rooms containing building services from the remainder of the building.
Application	Application 1: Separation of entrances to basements and to rooms containing building services from the remainder of the building, in buildings where: the storage, manufacture or handling of volatile materials can generate explosive air-vapour mixtures, or processes occur that produce explosive dusts. This applies to buildings described in Sentence 1.3.3.2.(1) of Division A. Application 2: This also applies to: tents and air-supported structures, as stated in Sentences 3.1.6.1.(1) and 9.10.1.2.(1), and rooms and spaces intended for the storage, manufacture or use of hazardous or explosive material, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9], as stated in Sentence 9.10.1.2.(4). Exceptions: except as stated in: Sentence 3.1.6.2.(1), which prohibits air-supported structures from being located above the first storey on any building, Sentence 3.1.6.2.(2), which prohibits air-supported structures from being used for classrooms or for Groups B, C, or Group F, Division 1 major occupancies, and Sentence 3.1.6.2.(3), which requires air-supported structures to be designed as open floor spaces without interior walls, mezzanines, intermediate floors or similar construction.
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Intent	Intent 1: To limit the probability that emergency responders will be delayed in gaining access to basements and rooms containing building services in a fire situation involving another part of the building occupied by the hazardous activity, which could lead to delays in fire emergency response operations, which could lead to: delays in the evacuation or movement of persons to a safe place, which could lead to harm to persons, and the spread of fire to other parts of the building, which could lead to harm to persons.
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