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.
Photo Credit Jacob Ammentorp Lund/iStock/Getty Images. A triathlon traditionally starts with the swim portion of the race and is followed by the bike and the run segments. Although most athletes change shoes during the transitions to bike and run, they usually go barefoot for the swim.hoto Credit Jacob Ammentorp Lund/iStock/Getty Images. A triathlon traditionally starts with the swim portion of the race and is followed by the bike and the run segments. Although most athletes change shoes during the transitions to bike and run, they usually go barefoot for the swim.