Building a woodshop, and have Power Questions.

[dan kim]

I am building a woodshop in a 2 car detached garage. I think i have 1 115V
circuit into it from the house. I would like to have at least one,
preferrably 2, more circuits running into the garage. I would hate to trip
a breaker with my circular saw and have the lights shut off.

I don't know how all this works.

From what i'm told, each circuit must be run from the line going into the
house. a trench must be dug from what i understand to bury the lines. but
i really don't know.

now some questions
How much does something like this cost?
Can i have circuit breakers in the garage?
I was told i need 2 115V lines to make 1 230V line. How much does it cost
to create such a line?
If i want 1 115V circuit for lights, 1 220V line for my table saw, and 1
115V line for other power tools, do i need a total of 4 lines?
is it usually legal to have such power lines and requirements running into a
detached garage?

background info>
table saw will draw 20 Amps at 120V
router draws 12 amps at 120V
dust collector <20 amps at 115V
drill press 6.5amps at 115v
planer 15 amps at 115v
air cleaner 5 amps at 115v

hope someone has the answers out there.

-danny

 

[dan kim]

One more bit.

at any one time, there will only be 1 power tool running (table saw, router,
planer, jointer, etc) + the dust collection and air cleaner + lighting.
lighting will probably be flourescent.

-danny

 

[Greg-EE]

I am building a woodshop in a 2 car detached garage. I think i have 1 115V
circuit into it from the house. I would like to have at least one,
preferrably 2, more circuits running into the garage. I would hate to trip
a breaker with my circular saw and have the lights shut off.

I don't know how all this works.

From what i'm told, each circuit must be run from the line going into the
house. a trench must be dug from what i understand to bury the lines. but
i really don't know.

now some questions
How much does something like this cost?
Can i have circuit breakers in the garage?
I was told i need 2 115V lines to make 1 230V line. How much does it cost
to create such a line?
If i want 1 115V circuit for lights, 1 220V line for my table saw, and 1
115V line for other power tools, do i need a total of 4 lines?
is it usually legal to have such power lines and requirements running into a
detached garage?

background info>
table saw will draw 20 Amps at 120V
router draws 12 amps at 120V
dust collector <20 amps at 115V
drill press 6.5amps at 115v
planer 15 amps at 115v
air cleaner 5 amps at 115v

hope someone has the answers out there.

-danny
By your questions, it would seem that you are in need of a licensed

electrician. This is not something an amateur should try.

 

[Bob Weiss]

Since you will need to dig a trench and run cable or (better yet)
conduit, I would suggest installing a subpanel in the garage, fed from a
2-pole breaker installed in the main house panel. Incremental cost over
several runs of smaller cable isnst that much more, and you get higher
capacity, as well as having the shop breakers right in the shop, rather
than back in the house. A 60A or 100A 240V feeder to the shop should
provide plenty of capacity for future expansion.

This kind of installation is probably not a DIY kind of job, but you
might save a substantial amount of money if you do the trenching and
backfilling yourself. Check with your electrical contractor and local
inspector for burial depth and other requirements.

Bob Weiss N2IXK

 

[bummster]

wasn't going to try it. the thought of handling power lines sort of uh,
scares me. wood and big power tools on the other hand, i have no problems
with.

-danny