The phase relationship relates to how the waveforms superimpose in time. For two signals of the same frequency they are in phase when there zero crossing times coincide. When out of phase the zero...
A clearance is defined as shortest distance through the air between two conductive elements. Practically all generators and many motors and high-power motors have 3 power conductors: the 3 phase...
This is called a "phase-to-phase" short and it will trip either the main circuit breaker in the panel, or the fuse protecting the panel. It might also result in personal injury if someone is in...