Steven Triggs
05-22-2007, 8:21 PM
I'm trying to decide on how exactly I want to do the electrical system for my new shop. All along, I've been planning to run a 100 amp sub-panel off of my existing 200 amp main panel.
However, I've been starting to wonder if this will work well. I figure at most I might simultaneously use the Dust Collector (18 amps), Compressor (18 amps), Planer (22 amps), lights (4 amps), A/C (15 amps), and Air Cleaner (3 amps). This would draw about 80 amps. Is it likely that my existing 200 amp panel can take a hit for a continuous load of 80 amps and still provide sufficient power to the house. I consider it very feasible that while I'm in the shop, the house would have the Air or Heat on, the water heater could kick in, the dryer could be running, and the oven might be on.
The following are my planned circuits:
planer 30 amp, 240 volt
jointer 20 amp, 240 volt
dust collector 20 amp, 240 volt
table saw 20 amp, 240 volt
compressor 30 amp, 240 volt
band saw 20 amp, 240 volt
car lift 30 amp, 240 volt
A/C 20 amp, 240 volt
drill press 15 amp, 120 volt
air cleaner 15 amp, 120 volt
lights 1 15 amp, 120 volt
lights 2 15 amp, 120 volt
gen. recept. 1 20 amp, 120 volt
gen. recept. 2 20 amp, 120 volt
I was considering adding a second meter, but my local building department said "no go" on adding a second meter to the same building (workshop is attached). That said, my only option for getting larger capacity would be to replace my meter, and that is really going further than I want to both in terms of cost and hassle.
Anyway, please let me know your thoughts on this.
Thanks.
However, I've been starting to wonder if this will work well. I figure at most I might simultaneously use the Dust Collector (18 amps), Compressor (18 amps), Planer (22 amps), lights (4 amps), A/C (15 amps), and Air Cleaner (3 amps). This would draw about 80 amps. Is it likely that my existing 200 amp panel can take a hit for a continuous load of 80 amps and still provide sufficient power to the house. I consider it very feasible that while I'm in the shop, the house would have the Air or Heat on, the water heater could kick in, the dryer could be running, and the oven might be on.
The following are my planned circuits:
planer 30 amp, 240 volt
jointer 20 amp, 240 volt
dust collector 20 amp, 240 volt
table saw 20 amp, 240 volt
compressor 30 amp, 240 volt
band saw 20 amp, 240 volt
car lift 30 amp, 240 volt
A/C 20 amp, 240 volt
drill press 15 amp, 120 volt
air cleaner 15 amp, 120 volt
lights 1 15 amp, 120 volt
lights 2 15 amp, 120 volt
gen. recept. 1 20 amp, 120 volt
gen. recept. 2 20 amp, 120 volt
I was considering adding a second meter, but my local building department said "no go" on adding a second meter to the same building (workshop is attached). That said, my only option for getting larger capacity would be to replace my meter, and that is really going further than I want to both in terms of cost and hassle.
Anyway, please let me know your thoughts on this.
Thanks.