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9.9.6.2.(2) | Application | Intent |
| OS3 |
| Objective | OS3 Safety in Use |
| Attribution | |
| Application | Application 1: Minimum clear opening height under door closers and
other devices at exits doors, at doors that open into
or are located within a public corridor, and
at doors that open into or are located within another facility that provides access to exit from a suite,
in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
Exceptions:
except as stated in Sentence 9.9.6.2.(3), which applies to
doorways serving a single dwelling unit.
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| Intent | Intent 1: To limit the probability of persons contacting or colliding
with items at the ceiling level, which could lead to harm to persons.
Intent 2: To limit the probability that exits will have insufficient
headroom clearance to permit efficient egress in an emergency situation, which
could lead to delays in the evacuation or movement of persons to a safe place,
which could lead to harm to persons. Intent 3: To supersede the requirements of Sentence 9.9.3.4.(1),
which would otherwise require a greater headroom clearance in exits, and of Sentence 9.9.6.2.(1), which would otherwise require a greater height in doorways,
and permit a reduction, on the basis that the reduction is limited and should
not negatively affect exit usage. |
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