vgizzi OP6 postsAre you referring to the line side of the breaker contact to the Hot bus tap connection? Is the electrical panel Line bus copper or aluminum? If copper is it bare or plated? Manufacturer of electrical panel?
07-05-2021
10:31am
4krowme, The grunge I cleaned off wasn’t greasy, or oily like the de-oxit spray. It was the sort of powdery oxidation that’s so common.
How did you clean the electrical connections surfaces? Abrasives should not be used on electrical aluminum bus in an electrical panel. The aluminum bus and aluminum alloy neutral/ground bars are plated. Even light sanding can remove the thin plating.
Also, I have the same question about a dedicated circuit. What is it actually doing?Basically a dedicated wiring circuit is used to feed a specific, dedicated, load(s). Like audio equipment.
Unlike a convenience outlet branch circuit that may feed several outlets and in some cases will also feed ceiling lighting fixtures/lights. The convenience outlet branch circuit has many electrical connections. With the passage of time and connected varying loads over time the connections may/will loosen and or corrode. (Methods used for making the connections can very. From very good, to not so good). Poor electrical connections can add series resistance to the branch circuit wiring. Also a loose and or corroded connection can cause micro arcing which can/will create electrical noise on the wiring. Add to that the integrity of the wall duplex receptacle female contacts. Most houses have cheap residential grade outlets installed. With the passage of time, and use, the outlets lose their contact pressure and ability to grip the male plug tightly. When a load is connected the poor contact connections will cause micro arcing and put noise back onto the branch circuit wiring. Last but not least the loads that are connected to the convenience outlet branch circuit will add their own noise directly onto the circuit wiring.
A dedicated branch circuit in most cases will not have any splices/connections from the breaker, neutral, and equipment ground connection in the electrical panel to the electrical wall outlet. No other loads are connected directly to the branch circuit.
The type of branch circuit wiring used and wiring method used can greatly influence the quality of how your audio system will sound.
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