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Electrical dilemma: changing 200 amps to 400 amps
Posted on 10/5/17 at 1:59 pm
Posted on 10/5/17 at 1:59 pm
I have a space in a new construction strip mall with a 200 amp service with two boxes. I need 400 amps for the business. Do you know what's involved and what's the cost to solve this dilemma? Concrete has not been poured inside. Thanks!
Posted on 10/5/17 at 3:51 pm to jojoca
Is the drop line run underground from the transformer to meter? Not that really matters b/c it may only need to be a new meter socket, surge protector and amp panel. I'm going guess maybe a couple of grand. I'm not an electrician so I wouldn't know if wire guage needs to be changed in this situation. Early in construction it may not be as much as I'm guessing.
This post was edited on 10/5/17 at 3:54 pm
Posted on 10/5/17 at 5:03 pm to jojoca
quote:
200 amp service with two boxes.
Two "boxes" as in panelboards? What is the current rating?
Does each store in the strip mall have its own transformer + feeder, or does the mall have one feeder going to a switchboard + meter center, which then feeds each store?
400 amps is a pretty big arse load for a typical strip mall place. Restaurant without gas to the building? (ETA: I'm used to commercial buildings with 277/480 services, at 120/208 400A is more reasonable but still pretty high for the kind of place that I'm picturing).
As for cost, no idea as I rarely do estimating. I believe that Entergy (or whichever utility provider you have) will typically upsize the transformer free of charge since they'll make it up by selling you more electricity. Other than that, I don't know enough about your situation yet.
This post was edited on 10/6/17 at 9:09 am
Posted on 10/5/17 at 10:35 pm to THRILLHO
This board can be absolutely electric at times...
Posted on 10/6/17 at 8:35 am to jojoca
You need an electrical PE to draw you up some plans, stamp them, get them approved by the AHJ and then have a licensed contractor follow the plans.
Posted on 10/26/17 at 8:39 pm to THRILLHO
I have worked it out. There are two boxes because the space was divided into 2 and then became one. That's why there are two boxes. 400 amps are for an infrared sauna workout studio. Thanks for your help
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