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Reply to "circuit breaker location"

"As a result anywhere along the path of the feed circuit between source and load is fine.  The breaker or fuse opens the entire length when it trips, regardless of its position."

Nope. An open circuit breaker or fuse opens the circuit towards the load (downstream). It cannot open a wire behind it (upstream). The upstream feed wire is still energized.  This simple concept may not be applicable to the huge discussion above, but it's a fact of physics.

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