I was looking at an existing house that has 5 of the 2-pole GE THQL disconnects at the 200A single phase service. I have one 60A breaker, one 50A breaker, and three 30A breakers. All of the service disconnects are rated at 10kaic. I am wanting to remove an inside fuse panel and move the circuits outside. I was thinking about adding a panel. The old fuse panel is on the 60A 2-pole breaker. I would probably feed the new panel off the same breaker. But, I am wondering if 10kaic is enough. I am use to installing 200A services with one disconnect and over 20 kaic protection. So, I am not sure if 10 kaic is enough. If I add the panel, I could add a panel with a main breaker that has a greater aic. But, because I am being asked to look over the electrical for a potential owner, I feel that I need to at least be concerned about the other breakers that will not be changed out. If it is too low a rating, then I need to recommend changing out the other breakers for a correct aic. Or, if that is not possible, I should recommend changing out the panel. Should I be concerned about the 10 kaic?
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