That will not be a cheap fix. How long do you think it will be down?

 

Last time it took a year and half to get duct from Siemens. We will temp connect.

 

Years ago when I was an apprentice in Dayton Ohio the gear that fed a large hospital burned up. They brought in a semi trailer generator to temporary replace commercial power. I got sent to Square D in Cincinnati to get new bus plates. It was 1:00 am when I arrived. They had opened up the manufacturing plant and called a machinist in to cut out the plates from ruff stock, it was neat to watch a skilled machinist work. I got back, they got the plates and they had them back to normal by 9:00 am. Bet that was expensive.

 

Which hospital?

 

I only work with residential and smaller commercial properties so looking at this and knowing from personal experience the repairs needed after a fire this is intense. Thankfully it only affected 3 floors, although the repairs look tedious and siemens is not my favourite although I mostly work with their panels and breakers (super sensitive might I add).

 

It affects entire building. Duct runs from basement to top apt floor.

 

Is that common to use busduct for apartments? I work with it daily in my manufacturing facility, but would've thought it needlessly expensive for a residential application. Worst blowup I've ever seen on busduct is an outdoor duct coming from a connection cabinet to a service. Water got in, went phase to phase to phase. The piece of duct was just... Gone.

 

Very common. If you ran conduit and conductors, it is more expensive. Multiple conduits and supports/tons of conductors THAT ALSO HAVE TO BE SUPPORTED. Jboxes and the connections to multiple floor equipment. If a duct fails, you can replace a section. Also duct does not take up much room. And space is $$$$$ in buildings.

 

Have a gander at these...