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9.8.7.5.(1)
OS3
ObjectiveOS3 Safety in Use
Attribution
Application
Application 1: 
Minimum clearance between handrails and any surface behind them, in stairs and ramps serving 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 Clause 3.8.3.4.(1)(e), which applies to barrier-free design in buildings described in Sentence 3.8.1.1.(1) [see Sentence 9.5.2.1.(1)].
Application 2: 
This also applies to handrails for stairs and ramps 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 that an inadequate clearance between a handrail and the wall to which it is fastened will lead to users not having a secure grip, which could lead to:
  • persons falling, or
  • persons falling in an emergency, 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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