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Flame spread requirements for totally enclosed non-metallic raceways (see Appendices B and G)

Totally enclosed non-metallic raceways installed in buildings shall meet the flame spread requirements
of the National Building Code of Canada.

Source: Rule 2-132, CSA C22.1:21, Canadian Electrical Code, Part 1 (25th Edition), Safety Standard for Electrical Installations. © 2021 Canadian Standards Association. Please visit store.csagroup.org

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