9.32.3.11.(6)

Objective

OS1 Fire Safety

Attribution

(a),(b),(c)[F02,F03-OS1.1]
(a)[F80-OS1.1]
(c)[F82-OS1.1]

Intent

Intent 1:

[Clause (a)] To limit the probability of melting or burning of the duct on exposure to heat from a fire or to corrosion, which could lead to the perforation of the duct, which could lead to the growth and spread of fire, which could lead to harm to persons.

Intent 2:

[Clauses (b) and (c)] To limit the probability of the entry and accumulation of grease and embedded dust in the exhaust fans or ducts.

This is to limit the probability that, in the event of a cooktop appliance fire, the ductwork will contribute to the spread of flame and smoke, which could lead to harm to persons.

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