Questions on Dedicated 20 amp home wiring

Carlsbad2
I would ONLY approach splitting a 220V or a 240V line by havening a licensed electrician do the work. In many cases it won't even be legal according to NEC. Much less safe. My first job out of highschool, was in an appliance shop where the owner tried that, one on each side of the shop. You didn't dare touch any thing like two refrigerators  that were plugged in on opposite walls. You become a bride for the third leg of the 3rd phase. So many ammeters on this site!

8th-note

Yo need to look up the definition Hospital grade. It has NOTING to do with Stainless. My PS audio outlets as actually marked as Hospital grade and I don't think there is one gram of steel of any kind in them. And I have NEVER heard of anyone referencing chemical exposure when discussing Hospital grade. When looking them up Leviton did mention that SS was used in HEAVY DUTY Hospital grade batu that is the only reference I can find. Here is the NEC Specs.
https://www.excel-medical.com/the-necs-hospital-grade-receptacle-requirement/

A true dedicated branch circuit does not share a neutral, hot or ground with any other branch circuits.😎

Mike

FWIW: Another reason for multiple branch circuits for audio besides dedicated power see my previous post below:

ditusa

1,073 posts

12-20-2022 at 08:35pm

@jea48Wrote:

Probably the biggest reason for installing more than one Dedicated Branch Circuit is to decouple the power supplies of audio equipment from one another. Example digital source(s) equipment from analog equipment.

I agree!

That was one of the reasons I ran four 60’ runs of galvanized steel armored MC solid copper core conductor cable 10AWG. That’s four true dedicated branch circuits, one for each mono block amp, one for analog and one for digital. It helps to reduce noise on the AC lines, by reducing the amount of transformers and power supplies on each circuit. Also, the MC helps to reduce hashing noise EMI, and electric fields, on the dedicated branch circuits feeding your audio equipment. You don’t realize how much hashing noise is on the AC lines, until it’s reduced. No ground loop hum. No noise. System is dead quiet with ear against speaker horn, I have tube and SS amps. (The efficiency of my speakers is 2.7% sensitivity 96dB). 😎

Mike

Bigtwin, the panels and wiring is in an unfinished basement and will be mounted on the ceiling and passed through to the first floor.  The run from panel to the stereo is probably 40 feet.

I ran 50 feet of 12 awg romex connected of course to a 20 amp dedicated breaker at the panel. The other end terminates at a Audioquest NG Edison receptacle. I use two power strips, a Audioquest Niagara 1200 (connected via AQ Z3) and a Furman PST-8. The Amp/integrated is connected to the Audioquest’s provided high current outlet via AQ Thunder, and most source components (streamer, turntable, cassette deck, etc) connect to the Furman via AQ X3’s. Seems to be all I need for now. Installed myself, on the cheap. AQ’s Garth Powell designed Furman’s PST-8, when he was with the company.

Lot's of great information here, I'll only comment on the receptacles. I ran a good sized comparison of receptacles, and had a couple of my audio buddies give their 2 cents. I do not have my notes, so I can't go into detail on each.

I used 8 different including Hubbell, hospital grade, and a bunch of name brands.....there were 3 that stood out that I can recommend: Furutech GTX-D(G) Gold plated, Furutech GTX-D)R) Rhodium plated, Oyaide R1 (NOT Oyaide SWO-XXX), and Cardas 4181. I preferred the Furutech GTX-D(G) over the GTX-D(R) as I felt the Rhodium was a little too detailed. That is just my preference, I can see how many might find it just perfect