Well, I cleared things up quite a bit with a site visit. The submittal I was working off of made it appear that the duct run would be parallel with the wall on which the sidewall heads are going, with a stand-off, so that's why I was worried about vertical spacing/stacking and cold soldering...
We have an existing electrical transformer room (wet transformers) in a healthcare occupancy that is protected by a preaction system. Our facility management dept. has a project to replace the transformers. The contractor is proposing to remove some of the existing sprinkler piping (standard...
38.3.2.1 General. Hazardous areas including, but not limited to, areas used for [highlight #FCE94F]general storage[/highlight], boiler or furnace rooms, and maintenance shops that include woodworking and painting areas shall be protected in accordance with Section 8.7.
My opinion is that the...
For New Business, the section in NPFA 101-15 is 38.3.2.1, which redirects to 8.7. Existing Business also redirects to 8.7.
8.7 allows a few options:
Enclose with a 1-hr fire barrier with no windows allowed; or
Protect with and automatic extinguishing system; or
Doing both of the above if the...
Our hospital has a direct vent fireplace. We have a plug-in CO Alarm (Kidde KN-COPP-3, plug-in with battery backup) in the same room as the fireplace. It's a single-station unit, so it doesn't report anywhere. NFPA 101, 2012 edition, Chap 19.5.2.3(2)(f) requires an "electrically supervised...
What's your jockey pump doing? If it's used to maintain pressure, and it's out, then your fire pump will still kick on and supply the pressure. So are you really impairing the system? If your fire pump run reports as a supervisory, no big deal. But if your fire pump run reports as an alarm...
From NPFA 101, 2009 edition:
18.3.6.3* Corridor Doors.
18.3.6.3.1* Doors protecting corridor openings shall be constructed to resist the passage of smoke, and the following also shall apply:
(1) Compliance with NFPA80, Standard for Fire Doors and Other Opening Protectives, shall not be required...
