COMMUNITY FORUM

kallan

01:35PM | 12/14/04
Member Since: 12/13/04
2 lifetime posts
Bvelectrical
Am building a new home and have been told to bring in 320amp service since I will be building a shop also.Can I run to services from the 320amp meter base to both the load center in the house and a seperate run to the load center in the shop?Am I able to install 200amp load centers in both locations?Would the 320amp service overload 200amp centers?What is the correct way to do this?

theeagle

05:05PM | 12/14/04
Member Since: 11/27/04
174 lifetime posts
my place i have a 200 amp panal in the house and then a 100 amp cable run out from that on a 100 amp breaker to my shop to a 100 amp sub panal.


Wireman

08:06PM | 12/20/04
Member Since: 12/19/04
62 lifetime posts
Kallan,

What size of home are you building? And the shop. Is it for your own use? Lots of machinery, power tools, etc? Employees working there or just for your use. Unless your building a very large home with a lot of power consuming extras you may be able to get a way with a 200 amp service with a 60 to 100 amp feed to the work shop. Think about the amount of tools you'll have going at one time. You may have 60 amps worth of machinery but never run more than 20 amps at a time since you are the only one in the shop. Can't give you a definite answer unless I know your loads and how they are going to be used.

Ron

kallan

04:23AM | 12/21/04
Member Since: 12/13/04
2 lifetime posts
The house is approx 2200 sq ft with the shop being 40 x 36 ft. The shop is for my own use of restoring older cars.I have a mig welder, regular stick welder, 220 air compressor, many flueresent lights. The service at the house will also be running a 220 pool pump, plus another 220 pump for my well,plus all appliances.I just don't want to get to the point of not having enough amperage. I'd rather have two much and not need it than to need it and not have it. Thanks alot for your input and direction on this.

Wireman

07:55PM | 12/22/04
Member Since: 12/19/04
62 lifetime posts
Kallan,

The 200 amp service will be fine. Taking into consideration the size of your shop I would recommend a 100 amp feeder to a 100 amp main breaker panel. Remember, even though the total amperage of each item added together may sound like a lot you will never run everything at one time. In the trade we have load calculations we do for something like this but I am speaking from experience. Bring in a 200 amp service with a 40 circuit panel, install a 100 amp breaker in that panel for the feeder to the shop. If your shop is a remote building you will have to install 2 ground rods and a grounding electrode conductor between the rods and the panel. How the GEC is terminated depends upon what you run to the shop from the house. Good luck on the project. Any old buicks?

Ron

Wireman

07:58PM | 12/22/04
Member Since: 12/19/04
62 lifetime posts
Kallan,

By the way, I also recommend using either SQD QO panels or Cutler-Hammer type CH panels, especially for handling the welders and shop equipment.

Ron
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