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.
The Main is used to power all the circuits on or off at one time. The Main circuit breaker also identifies the amperage capacity of the electrical panel and will have a number on it identifying its amp capacity such as 100 or 150. 100 amp service is the minimum allowed by code today, with 150 amp being very common.