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  1. J

    High rise fire and life safety systems

    thx for the info I found the rules I needed. Underground to the 2hr rated shafts or 2hr fire rated room where the fire pump and ATS are located can be run in pvc(DBII) no fire rating required. Is this assumption correct?
  2. J

    High rise fire and life safety systems

    Hello I'm new to this forum but hoping I can get some answers. I've been scouring the national building code of Canada looking for fire ratings. I need to know when I have to use 2 hour fire rated cable in a 23 storey building with a 2 hour rated riser shaft. Fire alarm cables, emergency...
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