According to Richard J Kinch :
Jimmie writes:

Connecting the same phase together at some point gives a difference
of 0 volts but also no current and doesnt blow fuses..

Right, but the two conductors are still DEAD SHORTED TO EACH OTHER.

By the same definition, the two ends of a single wire are "dead shorted
to each other". What useful information does that yield?

Zip.

The term you're using completely obfuscates the real result: no current
flow, no breaker trip, device simply doesn't do anything.
--
Chris Lewis, Una confibula non set est
It's not just anyone who gets a Starship Cruiser class named after them.