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9.7.5.3.(1) | Application | Intent |
OS3 |
Objective | OS3 Safety in Use |
Attribution | |
Application | Application 1: Protection for windows over stairs, ramps and landings
that extend to less than 1 070 mm above the surface of the treads,
ramp or landing, 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 9.7.5.3.(2), which applies to
protection for windows over stairs, ramps and landings that extend to less
than 900 mm above the surface of the treads, ramp or landing.
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Intent | Intent 1: To limit the probability of inadequate protection under
conditions of crowding in stairs, ramps or landings or for other reasons,
which could lead to persons -- who are pushed or who lose their balance --
falling against windows, which could lead to harm to persons. Intent 2: To limit the probability of inadequate protection under
conditions of crowding in stairs, ramps or landings or for other reasons in
an emergency, which could lead to persons--who are pushed or who lose their
balance--falling against windows, 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 expand the application of Subsection 9.8.8. to
include certain windows in stairs, ramps or landings. Intent 4: To expand the application of the guard loading requirements
in Part 4 [more specifically Article 4.1.5.15.] to certain windows
covered in Part 9. |
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