15A or 20A dedicated circuit


Hello 'goners:
Would love to learn about members experiences with hiring an electrician to install a dedicated line off the panel, either 15A or 20A. 
In my case the outlet supplying power to the entire HT rig is shared by a few other outlets, one being a treadmill; often, when the treadmill is started (belt moving) the in-rush must be enough to trip the 15A breaker. The proper way to fix this is either route the treadmill to another outlet (not very easy and not aesthetic) or run a new independent line to the HT, which is my preference.

In the basement we, thankfully, have used drop ceiling and the run to the panel pretty clean. 
Any tips I should pay attention to or things to avoid?

Did anyone notice an improvement with a dedicated line?

Thanks!



dpac996
The treadmill should have it’s own dedicated circuit. 15 amp minimum, 20 amp recommended. Not because of the breaker size but rather the branch circuit wire size. Usually only #14awg is used for 15 amp, though bigger can used.
#12awg is the bare minimum size for a 20 amp branch circuit.

As for the HT system, if you are going to pay an electrician to install a dedicated line for the HT, it’s a waste of time and money to install a 15 amp circuit. For only a few more dollars, difference in the cost of the wire, you can have a 20 amp dedicated circuit installed.

I would recommend you have two new dedicated circuits installed. IF conduit must be used DO NOT install the HT dedicated circuit in the same conduit as the treadmill dedicated circuit. If Romex can be used have the electrician keep them separated from one another by at least 12" after he gets out of the electrical panel as soon as practical as he begins their parallel run to the two outlet locations. (24" separation is better yet.) The treadmill more than likely uses a switch mode power supply.

Jim

Hi!

Where is the treadmill?
Where is the HT rig?

If in the same room, I’d suggest a minimum of two 20A lines. Three would be best. 4, better still.

Remember, 15A ckts trip off right at 1300 watts. 20A likewise at about 1800 watts.

Use all copper.

As said for the money putting in one line is the issue. Once that decision is made, then at the same time installing more lines should be done, if panel space or a sub panel feed is inserted as their cumulative costs won’t be a lot more than running a single line. Again, if there is enough existing panel space. For new breakers.
Convincing your electrician the importance of doing things so pedantically will bring a smile to his or her lips, and they’ll think you quite foolish too perhaps. Don’t give that a second thought. Dedicated ckts are always a good addition to an audio or HT outfit. Always.

The HT gear ded lines should be on one phase, the treadmill on another.

Will it fix any present anomalies you are audibly experiencing? Maybe.

Adding a passive power line conditioner for the front end gear (DVD, BR player, Proc/Rec, DAC, CATV box, etc.) will help more, once the lines are installed.

If you go with 3, you’ll have future proofing in place should you choose to add more amps.

I have four but did not have them set to any particular phase so only two sets of two are on different phases. I wish I had three 20A on one phase

I also wish I had 12 AWG THHN stranded run rather than using 12 AWG solid 12/3 Romex.

As well, it would have been a nice idea had I run each line into its own half inch PVC #40 conduit, depending on the run itself. Length. Logistics. Walls. Floors. Etc. shorter runs I’d use Flex tubing. A bit tuffer to work with in adding connectors but superior in durability and maintenance. One big benney is it has a metal flexible tubing inside the poly exterior shell or coating. It will need to be strapped periodically where accessibility is readily available.

BTW.. a number of accounts here on this subject intimate one should ‘twist’ the positive and neutral wires loosely. As if they were a braid. At the moment I can’t recall the ‘why’ of this but I feel its valid. Inductance comes to mind.

It will also take a bit of time to fully eliminate some power line issues even with a PLC in the mix. Some grounding issues and or motor artifacts may not be fully ameliorated even with ded ckts. Albeit, there ought to be significant attenuation of stator noise from the mills motor. And it will no longer be starving the power from the HT once on a ded ckt of its own.

One very good item derived from this pursuit is isolating later issues from the system will be much, much simpler should they arise.

Naturally, it adds to the value and functionality of the home going forward.

Live and learn. Good luck.

I am a Journeyman Commercial Electrician certified in 7 states.1:Follow the advice and stick to 20amp circuits,1 for the treadmill and 1 for stereo,with separate raceways & on separate phases of the panel..2:DON'T CHEAP OUT ON RECEPTACLES...I promise you NO electrician you hire to do this is going to broach the subject of the $0.79 receptacle he just plugged your multi thousand dollar system into.
1+ jea48, freediver & blindjim they know what they are talking about!
@freediver Is it okay to use 8 or 10 gauge on a 20 amp run assuming a 20A breaker and receptacle. 
noromance
Is it okay to use 8 or 10 gauge on a 20 amp run assuming a 20A breaker and receptacle.
Oh yesssss, and there are good  reasons to do just that, including limiting voltage drop.
Thank you all so much for the input!
I was looking at this for an outlet:

https://www.grainger.com/product/HUBBELL-WIRING-DEVICE-KELLEMS-20A-Heavy-Use-Hospital-Grade-49YK79

NO TVS, no GFCI, just a basic heavy duty 20A outlet.

Wiring from panel to new 20A outlet:

IGUS Chainflex

https://www.igus.com/product/1094

This is wicked overkill, but heck, in the realm of overkill audio it fits.

Probably nicer material and construction than the majority of the high dollar IEC power cables we buy for our components.

Not 100% it's to same residential wiring code as standard 12 AWG romex, but the specs are killer. 1000V with a testing voltage of 4000V. 
-40F to 194F (fixed)

If it's permissible I would tied one end of the shield to the earth return on the panel with a crimp or solder sleeve to generate the feeder.

The cable length run from my 200A panel to the proposed outlet is ~30 feet.

I plan to run all the HT and sensitive digital stuff on my power conditioner, with the Bryston 4B3 connected direct to the outlet. 

I will also make sure I go onto the other phase, than the treadmill.

Cheers





OP a few points...1:While the construction of standard hospital grade receps is much better than a 79cent resi recep they are still a poor choice due to the use of thin copper plating over brass for it’s blades and cheap stranded internal wire..A dedicated audiophile recep will have solid copper internal components & also have an additional layer of isolation between current carrying conductors and ground...
2:Stick with standard Romex..IMO and from a few empirical reports I read stranded wire has a much higher inductance compared to solid core romex and can limit high level transients(dynamics) in amplifiers..The power cords I have looked at using stranded wire utilize special winding techniques and copper or aluminum foil to control emf and inductive distortions..Someone out there but I can’t remember who makes super pure audiophile Romex at about $2.00 a foot that I would love to play around with...
3:No reason to spend extra on size 10 wire unless you plan to run 220v gear.With a 30’ run there will be no voltage drop..
As for as outlets go there are many to chose from.
If you don't want to spend a fortune I would personally recommend you purchase the Porter Port sold here on Audiogon from Albert Porter.
Link: https://www.audiogon.com/listings/ac-distribution-porter-port-porter-port-outlets-cryo-various-color...
I'm sure you will hear from both sides however based upon the testing I have done over the years I can hear definite sonic improvements over the standard Hubble outlets and other outlets after break-in period because the outlet is Cryogenically treated.
If you want to spend more I recommend the Furutech GTX-D Rhodium outlets.



@ dpac996,
Hello ’goners:
Would love to learn about members experiences with hiring an electrician to install a dedicated line off the panel, either 15A or 20A.
I assume you are going to hire a licensed electrician to install the electrical wiring and outlets. The electrician will know what meets the electrical safety code for your area.

IGUS Chainflex
https://www.igus.com/product/1094

Is not designed by the manufacture, nor recognized by NEC (National Electrical Code), or the AHJ, (Authority Having Jurisdiction), for the city you live in for use as branch circuit wiring.

I suggest you consult with an electrician before buying any electrical materials.

jea48 Said:

I would recommend you have two new dedicated circuits installed. IF conduit must be used DO NOT install the HT dedicated circuit in the same conduit as the treadmill dedicated circuit. If Romex can be used have the electrician keep them separated from one another by at least 12" after he gets out of the electrical panel as soon as practical as he begins their parallel run to the two outlet locations. (24" separation is better yet.) The treadmill more than likely uses a switch mode power supply.
Informational note:
If the electrician questions why it is recommended dedicated branch circuits should not occupy the same conduit, or if the dedicated branch circuits are installed using NM-B sheathed cable, (Romex is a Trade Name manufacture of NM-B), should be separated from one another when run parallel to other branch circuit wiring, it is to reduce induced voltage transfer, created by the magnetic fields of the Hot and neutral current carrying conductors, onto the conductors of the dedicated branch circuit for the HT audio/video equipment. Especially an induced voltage onto the safety equipment grounding conductor of the branch circuit.

If conduit is required by the AHJ in your area, ask the electrician if MC aluminum armor cable can be used.
https://www.homedepot.com/p/Southwire-12-2-x-100-ft-Solid-CU-MC-Metal-Clad-Armorlite-Cable-68580023/...

Jim