We live in a mobile home built in 1977. The electricity at several outlets inside and the power to my little shop goes out for hours sometimes and then just magically comes back on. The breakers did not ever trip. We traced what we think are the affected circuits and i replaced the breakers. all was well for a week. then today it happened again. the breakers were both split 20amps. and im not getting any power out of three of them and only 87 volts out of one of them. i have tested all the outlets in my house while the power has been out and there is one outlet that is getting 19 volts. i wonder if this could be where the problem is?