One is a 20A interior circuit in a livingroom and batthroom. The other is a 15A outside circuit.
This is an older home I bought last Summer. The breaker box has a 200A breaker, in addition to the other breakers.
Over the past 2 weeks I was operating my UPS-protected computer off the livingroom circuit and I began to get a lot of electrical noise, which was recorded on my log.
During these short episodes of noise I also got a real staic-y buzzing noise coming from the breaker box.
While operating a small drill outside the power for both circuits would completely shut down, for about 10 minutes.
The circuit breakers did NOT trigger. I flipped them on/off a few times and it had no effect. The other circuits in the home were fine and had no interruption. Some of these are on the same side of the breaker box as the problem circuits.
The problem DOES seem to start-up when I am running MORE things on the circuits.
Neon nightlights in the circuits flicker when the clothes drier is running and the breaker box noise will occur whenever a load such as the washer starts up.
Last week, during a wet snowstorm, there was an "arcing" noise coming from the power pole and wired-in outside light.
I've tried to include as much info as I can recall.