ARCHIVED - 9.8.2.2.(1)

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9.8.2.2.(1)

Application

Intent

OS3


Objective	OS3 Safety in Use
Attribution	[F30-OS3.1] [F10-OS3.7]
Application	Application 1: Minimum clear height over stairs, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9]. Application 2: This also applies to stairs within dwelling units in buildings to which Part 3 applies [see Sentence 1.3.3.2.(1) of Division A for application of Part 3], as stated in Sentence 3.3.4.7.(1).
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Intent	Intent 1: To limit the probability of insufficient clear height over stairs: in dwelling units (1.95 m), where occupants are likely to be intimately familiar with their surroundings, or in other than dwelling units (2.05 m), where occupants might not be familiar with their surroundings. This is to limit the probability of: persons accidentally contacting the ceiling with their head, or persons accidentally contacting the ceiling with their head in an emergency, which could lead to persons falling, which could lead to delays in the evacuation or movement of persons to a safe place. This is to limit the probability of harm to persons.
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