I agree, AC isn't as well behaved as low voltage DC. At least you seem to have a line that's staying how is. Much easier to get rid of that way. It all depends on how the defect came to be as far as the cause. Overloading causes different problems than loose or uninsulated connections. Since the branch is tripping the breaker, there should be some evidence to prove it once you find the issue. Arc Burns or melted insulation or something similar.
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