@DavidHalko in my experience, aluminum bussing is more prone to arcing - burning. If the clip on the breaker is loose, with high current, there will be arcing. Aluminum, being a soft metal, will pit and carbonized fairly easily with arcing. As the arcing eats away the aluminum, the gap grows and the arcing becomes more violent.
@@abrelectric - when the HVAC compressor trips on and you hear a short ZZZZ in the breaker box, could this be what’s happening inside the breaker panel?
@@abrelectric - with older breakers, is that dangerous? (I heard it do this for over 20 years, I have not been concerned about it, the panel is probably 40-50 years old, I hate to touch working stuff! LOL!)
Just tell em it’s to keep it from freezing up in the winter
What causes burned bussing?
@DavidHalko in my experience, aluminum bussing is more prone to arcing - burning. If the clip on the breaker is loose, with high current, there will be arcing. Aluminum, being a soft metal, will pit and carbonized fairly easily with arcing. As the arcing eats away the aluminum, the gap grows and the arcing becomes more violent.
@@abrelectric - when the HVAC compressor trips on and you hear a short ZZZZ in the breaker box, could this be what’s happening inside the breaker panel?
@DavidHalko could be, especially during the start up. Sometimes, it's the sound of an older breaker handling the motor start-up currentspike
@@abrelectric - with older breakers, is that dangerous?
(I heard it do this for over 20 years, I have not been concerned about it, the panel is probably 40-50 years old, I hate to touch working stuff! LOL!)
@@DavidHalko shouldn't be. Worst case, the breaker will fail.