A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit.Its basic function is to detect a fault condition and interrupt current flow.n early form of circuit breaker was described by Thomas Edison in an 1879 patent application, although his commercial power distribution system used fuses.
Since the shortest swim distance in a triathlon is likely 400â800 meters, and typically more, one needs to consider what training is required to sustain a good pace for the distance to be swum. 800 meters is no sprint.
Swimming a mile depends on how fast you are. One of my favorite swimmers, Katie Ledecky, has a record 15:13.30 on 1500 metres long course (closest to one mile event) freestyle at the age of 17. For other regular competitive swimmers, many of them swim the mile in 20 - 30 minutes.