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Critique my electric plan

Innovate1

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Jul 28, 2014
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4,333
Location
Illinois near St. Louis, Missouri
Starting wiring. Main panel location is fixed by feed in floor.

Please give me feedback and suggestions on my attached plan. Panel is 100A, 24 space. I noted outlets (technically receptacles) as "0", Lights as "L". I only included some lights. The main lighting for the larger areas is not worked out yet - would welcome suggestions on that too. 30 x 40 x 14' ceiling. The bath and sink area has an 8 x 8 mezzanine at 8' - the lights there are LED recessed pucks. The outdoor lights are 3.5" wall mount boxes so get a better seal that a full size box. The one by the man door will be under a canopy in the soffit. I drew circles around what I am thinking for each circuit.

Only showed 120V receptacles. Receptacles are at 54" to the bottom of the box to be above tool boxes and 4' material. I don't have any 240V equipment now but may in the future so added a couple boxes I can make high current and/or 240V. One might become an RV plug in. A few things that went into that are that all receptacles have to be GFCI and within easy reach. So the high GDO has to have a lower GFCI and I chained it to others in the area that are lower. Cord reel is ceiling mount.

Box above panel is going to have 1" conduit in wall to panel and extend out of wall so I could add surface conduits as needed.

Building will get various use. Some light wrenching on cars, mowers, etc. Woodworking, possible bridgeport or CNC mill. Some sheet metal forming/punching. Small RV.

The area next to the panel will have some network and low voltage stuff with a dedicated receptacle.

I grouped all the bath together with one of the shop sink receptacles. The other is on a different circuit in case we want to put a refrigerator or microwave on them.

I didn't alternate receptacle circuits - perhaps I should in case I have a couple large loads in the same area.

What size boxes should I use for the two boxes that may get who knows what added later?

HVAC may be one or two circuits depending on if I go with furnace/AC or heatpump.
 

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Innovate1

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Messages
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Location
Illinois near St. Louis, Missouri
Can you elaborate on that? It's a detached garage. Are you talking about a dedicated circuit for the receptacle in the bath? It will have a light, a fan, and a receptacle. Just looked up some details. Will likely put the fan and light on the same switched circuit. I would make the receptacle it's own circuit.
 
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alfredeneuman

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Mar 3, 2011
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Fullerton, CA
Can you elaborate on that? It's a detached garage. Are you talking about a dedicated circuit for the receptacle in the bath? It will have a light, a fan, and a receptacle. Just looked up some details. Will likely put the fan and light on the same switched circuit. I would make the receptacle it's own circuit.

Yes, I'm talking about the receptacle. It doesn't matter where on the property it is. You can just put the light and fan on that circuit too....You don't have to, but it's allowed.
 

ddawg16

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Jul 11, 2008
Messages
21,005
Location
S. California
Yes....the piss closet must have it's own 20a ckt....

I would alternate the outlets. The extra cost in wire is minimal and gives you more flexibility in case you do need the power.

If you have more than 6 breakers, then you have to have a single disconnect for power. For some reason, the NEC determined you can't turn off more than 6 breakers quickly should there be an 'oh ****' moment.

Remember, it's always easier to not use slots than to need slots and not have them.
 
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