I'm building a small music studio on our property and I'm looking for some advice on the electrical end of things. The building is almost 130 ft. away from a proposed sub panel, and another 70 ft. away from the the main panel of our 48v solar system. I'm hoping to do this on one circuit after the sub panel (130ft. away)
The known items for load will be two 450w speakers, one 200w speaker, a 60w amp, 40w analog mixer, 6 10w LED lights, 60w computer charger.. some other chargers/peripheral devices, etc. that I can't account for yet.
Here's the plan so far. I'm wondering if I can run this all on one circuit by branching off in a few spots to the lights (in pink).
Best Answer
I don't have the reputation to comment so I'll jot this down as a partial answer.
Install 12A wire in the building You are outfitting an accessory building to do music production; not just lighting a room. By July it will occur to you that you need a small AC window unit and a mini-fridge. Don't skimp on the wire now.
Strongly consider installing a sub-panel This allows you to run separate circuits for lighting and electronics. Not to mention a 20A circuit for your future wet-bar.
Think about lightning risk; think about ground loops If lightning strikes this building what is the path to earth? If you ground the sub-panel locally you can introduce a ground loop. Especially since you probably have a mix of grounded electronics (computers with 3-prong plugs) and un-grounded musical equipment (amps with 2-prong plugs). I suspect the best approach will be to avoid a separate local ground and tie back into your main house ground. So make sure your grounding conductor back to the house is of sufficient gauge. I don't know if putting the dimmers on a separate energized wire from your wall outlets will help avoid magnetically induced hum. If it does, this would be one justification for running MWBC as others have suggested.