The Ontario Building Code | Recessed Lighting Fixtures
3.2.7.2. Recessed lighting="http://thehandyforce.com/electrical/" title ="East York Electrician">lighting Fixtures
(1) A recessed lighting="http://thehandyforce.com/electrical/" title ="East York Electrician">lighting fixture shall not be located in an insulated ceiling unless the fixture is designed for this type of installation.
In Plain Language
This clause sets requirements for how an emergency generator or other emergency power source must be installed, including fuel supply, ventilation, and separation from the rest of the building, so it remains reliable and doesn't itself become a fire hazard.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.