5.10.1.1.(1)

Objective

OS1 Fire Safety

Attribution

(a) [F61,F63-OS1.4]Applies where required life safety systems are incorporated in environmental separators.

Intent

Intent 1:

To limit the probability:

  • that the thermal performance of materials and components will fall significantly below expectations, which could lead to the inadequate control of heat transfer through environmental separators under expected environmental loads, and
  • with respect to CAN/ULC-S703, that metallic components of environmental separators will be corroded by chemicals in the cellulose.

Where required life safety systems are incorporated in environmental separators, this is to limit the probability of compromised operation of temperature-sensitive or moisture-sensitive life safety systems, which could lead to harm to persons.

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