NFPA 72, 2016 Edition uses the phrase "2-hour fire-rated construction" in a few places; what does this refer to?
It's confusing to me since a variety of elements within the building could be 2-hour rated. For example, NFPA 72-2016 Section 18.104.22.168 states:
"Two-way in-building wired emergency communication systems shall have a pathway survivability of Level 2 or Level 3. Exception: Level 1 shall be permitted where the building is less than 2-hour fire-rated construction."
Buildings are not designated with a fire-rating, elements are. How do you interpret this?
Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe
Subscribe and learn something new each day:
Top Nov. '23 Contributors
Get 100 Days of Free Sample Questions right to you!
PE PREP SERIES