plga
I
will connect the line to the main breaker of the Electrical Company who
supplies me the service. Not the street!!! I meant I will by pass my
house's main breaker. I do not think that complies with NEC - you'll also have to check your local code. That is definitely not allowed where I live.
I will connect a dedicated positive, a
neutral and ground. The latest will be connected to a new copper bar,
wich I will bury on the ground.
I'm not sure what you mean by "dedicated ground." All grounds and neutrals must be connected together inside the service panel. No exception - that's NEC. Also, some local codes require more than a single ground rod so again, so check local code.
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perazzi28A 20 amp circuit should be a 20 amp breaker with 12 gauge 2 conductor + ground. Not necessarily - it depends in part on the distance between the panel and the outlet. Always check NEC and your local authority. Exceeding the recommended wire gauge for a specific amperage breaker is just plain dangerous. It isn’t clear what you mean here, as Al has already noted. It is absolutely safe to use a thicker wire than is required by code. Attempting to wire 3 separate circuits to your hi-fi room to 3 separate outlets is a terrible waste of $$ and you will absolutely assure yourself of a serious ground loop & concomitant noise/hum. Hmmmm, not in my system. Just the opposite! Many people are under the misconception that the electrical ground for your home/apartment/domicile (in the foregoing referred to as home) is provided by your electric company. Very false. The ground is a true earth ground made by the electrician that wired your home. It is a 6’ copper rod driven in the ground and connected to your electrical panel with a large single conductor to the ground bar in your service panel. You are mistaken. Electricity flows back to the source. The grounding rods are safety grounds. All of your grounds go to that ground bar in your service panel. That’s true. |
audioman58If using dedicated lines and keeping your musical signal pure
don’t put the surge protection in a box to corrupt line conditioning
a dedicated unit such as the Siemens is excellent handles med spikes to large 100k surge protection right at the breaker panel ... I'm not sure exactly what this means regarding "keeping your musical signal pure" but using a dedicated line with surge protection at the service panel doesn't obviate the benefit of power conditioning between it and an audio component ... at least in some systems.
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millercarbonIts a common misconception, that the big benefit of the dedicated line is current. It sure does not seem that way to me. I have found it to be a major benefit, but I have a complex biamplified system with big amplifiers.
Originally ... my
room was a normal 15A circuit. Normal in gauge. Normal in the circuit
running from outlet to outlet, four or five of them, including lights,
with my system outlet sort of in the middle of this mess.
When I replaced this with one wire run directly to the one system
outlet the improvement was huge, obvious, unambiguous. Even though it
was the same breaker, same wire. Only thing different, one continuous
wire not going outlet to outlet with multiple connections at each.
Yup, I'm not surprised that resulted in improvement. Tight, direct connections; simple, direct grounds; those things make a big difference.
Next I replaced the normal gauge (10/2 I think, whatever) with overkill 4 ga.
Whoa, 4AWG! That's huge, and difficult to install. For a 20A line, 8 or 10 AWG should be fine and is still way beyond code.
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ieales Not so. Full current is supplied by the PSU caps. You’re either deliberately splitting hairs here, or just not reading carefully. Obviously, the PSU caps can’t supply current to components not connected to it, but which are connected to other dedicated lines and power supplies. Those components are indeed powered by their individual caps which are charged by ... the line. They can’t be charged by the line if it has run out of current - hence the advantage of dedicated lines. (And a reason to not power all components from the same leg - but that’s a separate and debatable issue.) |
three_easy_payments What would I notice in terms of sound quality during a transient voltage drop ... Sorry, but I'm not one of the users here who instruct others on what they will or will not hear. I suggest you listen for yourself.
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three_easy_paymentsI’ve often wondered why so many folks think they need a 20A circuit for their 2-channel audio systems. It helps reduce voltage drop. And there are other reasons to run multiple dedicated lines, such as keeping digital components on a different circuit from analog components. If you have high power amplifiers as I do, it’s nice to have each amp on its own circuit. That way, when big crescendos emerge, you know full current is still available to the rest of the system. |
You should check your local code. In the US, if you’re sharing neutrals, you’d need to have each of the circuits connected so that if one trips, they all trip, such as by using double breakers. That means the lines would be on different legs, which many think isn't ideal. I think common audiophile advice would recommend against doing that.
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