Temp feeder requirements

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brantmacga

brantmacga

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Georgia
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Former Child
I have a building being 75% gutted and remodeled.

In a corner of this building is a server room that must stay operational. The existing feeder must be removed and re-worked. The scheduling is going to require me to temp the 60A 208/120v feeder to the panel in this room for at least a month.

I put money in the job for a generator, but looking at the site today, I have concerns about the amount of pedestrian and vehicular traffic around the building. I feel like at some point, it's going to be vandalized. The location isn't as secure as I thought it would be.

I'd like to run a temporary feeder from the existing MDP that will be untouched approx 200' across the building. But every room it passes through will be demo'd.

Is it acceptable to run either an SO or MC cable across the floor to feed this panel? I think there is also the possibility that I can get through the ceiling of the mechanical room and up over the 2nd floor and run it across the bar joists. The main issue with that routing is that the 2nd floor over the mechanical room is not being remodeled, so I would have to get between the floors and into the area being gutted before I can turn up.

I can't start running the conduit for the new feeder until demo is complete.

In the space that is being remodeled, they are completely removing the 2nd floor to make one large area with 19' ceilings.


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Why not run it outside? I wouldn't want a Temporary feeder near where demolition is going on to feed a critical load. Personally if I was the company I would seriously consider relocating the server while construction is going on. All kinds of bad things happen when construction is going on. And there is no guarantee that two weeks into the Construction someone doesn't go on strike or pushover the wrong wall.
 
I would run mc or ser up and over out of the way or run around or up and over the roof and back down the outside the building to feed the servers.

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I was involved in a similar scenario once. Shocks from the demo (jackhammer suspected) caused disk drive failures in the RAID array and brought the company to its knees for almost a week.

Relocating the servers is a good idea.
 
retirede said:
I was involved in a similar scenario once. Shocks from the demo (jackhammer suspected) caused disk drive failures in the RAID array and brought the company to its knees for almost a week.

Relocating the servers is a good idea.
Click to expand...

That's a good point. We have a lot of trenches to cut in the slab near this room.


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Went back today; there is a 2" conduit on the floor above this room feeding an AHU that will be removed. Looks like I can use that pipe and conductors for the temporary, set a junction and take it down to the data room.


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