Dedicated circuits

@immatthewj 

did the work boxes in between them and the outlets degrade them and does it affect them that each as two other outlets that are not being used?

I know some audiophiles really like to dissect every morsel of an AC circuit for audio, but in your case, I wouldn't sweat it. IMO, they're still considered dedicated circuits. Some with golden ears may not agree with that, but that's my opinion. 

FWIW:

jea48

3,919 posts

06-07-2022 at 08:04pm 

@kijanki

+1

 

Please explain what happens if the power transformer’s secondary winding voltage is lower feeding the rectifier, due to a quick AC mains VD event, and the electrolytic capacitors voltage is higher. Just going from memory the rectifier will not conduct and the caps do not get recharged for that "(millisecond pulse)" in time.

 

Jim

Response:

kijanki

4,296 posts

06-07-2022 at 08:46pm 

@jea48   You are right - there will be no current thru rectifiers until capacitor voltage will drop below rectifier supplied peak voltage.  Theoretically it is possible to build LPS where capacitors keep average instead of peak voltage, but it requires huge inductor in series (in order of Henries) made with thick wire and AFAIK nobody is doing it.  One problem is lower rail voltage (average instead of peak) while the other is dependency on the load current.

http://www.r-type.org/articles/art-144.htm

I prefer Aluminum armored solid conductor 10 - 2 with ground MC (Metal Clad) cable for branch circuit wiring. MC NOT AC metal clad cable.

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One topic that doesn’t get discussed much is available voltage. The rule of thumb is that what voltage can’t accomplish, current will (I know I’m probably getting a bit technical here). So let’s take that USA goal of providing 120 volts at an AC outlet, and you are measuring or only providing 115 volts (this can sometimes take place during hot air conditioning days in your neighborhood or building). Your amplifier could in reality pull more amps on peaks (compared to providing it 120 volts), due to the fact that you’re providing a lower AC voltage to it. This is when voltage drop becomes part of the equation. I guarantee that in most situations this won’t ever be a problem, but it is something to consider, especially with longer runs of AC wiring to the outlet from the circuit breaker box (technically called load centers). Again, this is normally not a big concern in almost all installations, except for some, but at the same time, it is worth noting. Here are a few examples of voltage drop charts:

Cerrowire Voltage Drop Chart

Voltage Drop Chart

@dpop  okay, I can happily live with that!

If a train leaves New York travelling at 60 MPH, and a Hot Air Balloon can accend at a rate of 5 feet per second when the ambient air temp is 78.3 degrees, can I still hear any difference between a 12 gauge 15 amp line and a 10 gauge 20 amp line, when playing side two of Zappa's Burnt Weeney Sandwich LP?  Feel free to discuss ad nauseam.  🤣