What is Mastoiditis? Mastoiditis, the infection of mastoid bone just behind the ear, is often the result of middle ear infections (acute otitis media) spreading to the surrounding bones. Mastoid process is the conical prominence that extends from the temporal bone, just behind where the ear is located.
How much does it cost to replace main breaker load center? Electric panel replacement cost vary from $750 for 100 Amp with 14 - 18 circuit breakers load center and simple work to $1,650 or even more for 200 Amp with up to 42-circuit breakers indoor main load center and complex work including labor cost and materials expenses.
Resetting and Changing a Breaker. When a breaker trips, it displays a red flag, and to reset it, you need to turn it all the way off and then on again. Changing a circuit breaker is a job that should be preformed by an electrician, because it involves removing the panel cover.he fuse box had a knife-blade disconnect, a 30-amp main fuse, and 10- or 15-amp fuses for the branch circuits. These fuses, which screwed into a ceramic housing, each featured a carefully calibrated metal strip that would melt when the current exceeded its rating.