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9.10.10.5.(1)
OS1OP1
ObjectiveOS1 Fire Safety
Attribution
Application
Application 1: 
Minimum fire-resistance rating of fire separations that separate service rooms containing an incinerator from the remainder of the building.
This applies to 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 9.10.10.1.(1), which applies to service rooms that are located within dwelling units, and
  • Sentence 9.10.10.2.(1), which applies to floor assemblies that are immediately below a service room.
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Intent
Intent 1: 
To supersede the requirements of Sentence 9.10.10.3.(1), which would otherwise require a minimum 1 h fire separation, and require a higher minimum rated separation, on the basis that incinerators pose a higher risk of fire or explosion.
Intent 2: 
To limit the probability that fire will spread from a service room containing an incinerator to other parts of the building, which could lead to harm to persons in the other parts of the building.
Intent 3: 
To limit the probability that a fire originating in a location outside a service room containing an incinerator will spread into the service room, which could lead to the disruption and discontinuation of service from equipment located in the service room, which could lead to an undue fire hazard in the building, which could lead to harm to persons.
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