Over the past year the electricity in my house has been acting very strange. The thing is, half of my house never has a problem and the other half always has the problem. A couple months ago the electricity was shutting off every 5 to 10 minutes, only for a couple seconds, and this went on for about 4 hours. Then it never happened quite like that again. After that it would happen only once and maybe 2 to 3 times per month, so it hasn't been a big deal. Today the power went out and it stayed off for 90 minutes. I called an electrician, he thought he fixed it, and then it happened again 5 minutes after he left. When he was here he put some antixoidant on the wires and he also switched the placement of 2 wires on 2 15 amp breakers (just revered their positions so hopefully I would not lose electric to my furnace). The circuit with issue runs my refrigerator, the fan for my furnace, the kitchen, and 2 bedrooms. I don't think they all go to one breaker as I have 4 of these 15 amp breakers that seem to power most of my house, including all the electric on the things going out. I haven't added any new appliances, I'm not running them all at once when I have troubles, it just seems to happen at totally random times without a specific cause. If this makes any sense and you can help, it'd be much appreciated. The electrician thinks it could be the meter outside or maybe I just need an entire new breaker box because it's old. I know nothing about this, I hope someone can help