8. Add the distance of your answer to the position of the first mark and make the second mark. In this case, 6 inches plus another 6 inches places the second mark at 12 inches.
Breaking capacity or interrupting rating is the current that a fuse, circuit breaker, or other electrical apparatus is able to interrupt without being destroyed or causing an electric arc with unacceptable duration.reaking capacity current corresponds to a voltage, so an electrical apparatus may have more than one breaking capacity current, according to the voltage.
Metal-enclosed low voltage power circuit breaker switchgear is obvi-ously. for use on low voltage systems. The maximum ratings in C37.20.1 are 635 V for. ac switchgear and up to 3200 V for dc switchgear. The inter-rupting device is a. low voltage power circuit breaker, either withdraw-able or stationary. It may be. either manually or electrically operated, fused or unfused. Each circuit breaker is. enclosed in a grounded metal compartment, but other isolation, such as between.