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Posted by essenz on November 7, 2007, 9:30 pm
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I have no real background to use as a frame of reference just general
knowledge. I am concerned the buildings electrical contractor is
taking advantage of me.
Today he told me his hourly rate is $95 per hour. And I got part
pricing from a supplier, back calculating using his rates, it appears
installing a panel will take him 3 days, installing HVAC connection
will take 2 days, and so on.
Now I am not a professional electrician, but I do know that a panel
does not take 3 days to install.
In telecom I break my butt at $65 per hour doing work, and 8 hours
gets a lot down. I refuse to have an electrical contractor sit around
for 3 days for something that can be done in less then 8 hours. I've
moved entire datacenters in less then 8 hours!
I'm getting other bids, but its a real corrupt business all this union
electrical stuff.
-John
> j...@essenz.com says...
>
> > Doing some electrical work in a datacenter and have been told to use
> > the buildings approved electrical contractor.
>
> > The quote he gave me seems outrageous, and I wanted to see what people
> > thought. If anyone here has experience in building/pricing out new
> > breaker panels in a datacenter, I would love to here what you paid to
> > help put my quote into perspective.
>
> > Here is a basic run down of the environment.
>
> > My suite has a 480V 3PH 200amp feed coming into it.
>
> > 1. Install a 480V 400A 3PH panel and connect to incoming feed (5ft
> > hard conduit)
> > Price: $5800
>
> Copper is very expensive right now but that seems abnormally high for 5
> feet of cabling and conduit along with connections. Should be about 1/3
> that price.
>
> > 2. Install a 208V 200A 3PH panel
> > Price: $4200
>
> The panel itself only costs about three hundred dollars. Breakers are
> about $30 each. So lets say there are 50 breakers and 4 hours labor at
> $125 an hour it'd be around $2,300
>
> > 3. Run an electrical connection (15 feet / hard conduit) with remote
> > disconnect to an HVAC unit
> > Price: $2300
>
> Again, way out of line. Even if the cable were $20 a foot it'd only come
> out to $300 and metal conduit is reasonably cheap, say about the same
> price as cable. Eight hours labor is $1,000 so $1,300 seems reasonable.
>
> > 4. Wire a UPS into the LINE 480V panel, and the LOAD 208V panel, total
> > of 10 ft of hard conduit.
> > Price: $1300
>
> That sounds about right.
>
> > 5. Run three conduits from the 208V UPS load panel to three 208V 200A
> > 3PH sub-panels. Use 100amp breakers on the main, and 45 feet total
> > conduit.
> > Price: $9000
>
> See the pricing for the panels and derive numbers from that. $9,000
> seems high.
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