Sentence 9.10.9.15.(3)

  1. OS1
  2. OP1

Objective

OS1 Fire Safety

Attribution

Intent

Intent 1:

To exempt public corridor separations from the application of Sentence 9.10.9.15.(1) by waiving the requirement for a fire separation if certain conditions are met [i.e. the floor area is sprinklered throughout, the sprinkler system meets certain operational requirements, and the corridor has a minimum width].

This [the sprinklering and the minimum corridor width] is to limit the probability:

  • that a fire will not be controlled or suppressed [sprinklering], which could lead to the spread of fire into the public corridor, or from the public corridor into a suite, and
  • of overcrowding in corridors during a fire situation [minimum corridor width].

This is to limit the probability of:

  • delays in the evacuation or movement of persons to a safe place, or
  • delays or ineffectiveness in fire emergency response operations, which could lead to
    • delays in the evacuation or movement of persons to a safe place, or
    • the spread of fire to other parts of the building.

This is to limit the probability of harm to persons.

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