The Ontario Building Code | Nonmetallic Raceways
3.1.4.4. Nonmetallic Raceways
(1) Totally enclosed nonmetallic raceways used in a plenum in a buildingpermitted to be of combustible construction shall meet the requirements of Clause 3.1.5.20.(1)(a).
3.1.4.4. Nonmetallic Raceways
(1) Totally enclosed nonmetallic raceways used in a plenum in a buildingpermitted to be of combustible construction shall meet the requirements of Clause 3.1.5.20.(1)(a).
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