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Thomas Waghorn
Hi  I have a question regarding the distance from the hsw sprinkler to a ventilation outlet that is placed about 25mm from the sprinkler head. The sprinkler deflector is not obstructed by the ventilation. But my concern is that the air will cool the sprinkler so much that the sprinkler activation will be delayed. Is this ok? I can't find anything… (Show more)
in Fire Protection Systems
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H. Mohammad
Hi all  ? How to approve by an engineering analysis that the fire will be halted after the sprinkler system activation Thanks   
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Nancy Chaplin-Reynolds
I live in Albuquerque NM. A house next to my rental property was mostly gutted due to a smoke fire over 10 years ago. The floor joists are exposed, most walls are missing, an extension cord has been run from the outside electrical panel to the inside, the inside is littered with wood, and uninstalled appliances cabinets. It was partially boarded… (Show more)
in Building & Life Safety
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legendlcox
I work as an outsourced IT HelpDesk position in a school district that wants us to install wire molding to conceal extension cords and Ethernet cables. Ethernet cables yeah sure that's fine they are under 50 volts, but as I understand extension cords are not supposed to be used in place of a permanent outlet especially if it is in the ceiling. The… (Show more)
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Faith Berry
  As I was finishing raking up the mess from this year’s past storm fronts, I was thinking about how residents living in wildfire prone areas can do so much to reduce their risk of loss to wildfires by completing some simple and low cost property maintenance chores.  Spring cleaning can also improve your wildfire safety.  In a recent article,… (Show more)
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marco causo
As part of fit out works for a major infrastructure project, we are carrying out the installation of static smoke barriers in suspended ceiling void. The original design showed these smoke barriers made with gypsum boards and mineral wool infill. We are installing 2 x 12.5 mm fire rated  gypsum boards for each side, creating a cavity smoke… (Show more)
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Nick Sasso
I don't recommend using it at this point in time:   Electrical Service Grounding Option: The Steel Rebar 'Sticking-Out' Method? | Electrical Contractor Magazine 
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carl mister
See attached sketch for fire pump controller neutral. Fire pump controller has the service disconnecting means and transfer switch. The phase conductors on the normal side will be tapped in a separate section at the main switchboard. Since this is a service, per 250.24(c) the grounded conductor (neutral) needs to terminate at the service switch… (Show more)
in Electrical