At the end of the day, who cares which wire is longer? This whole thread
is about as useful as a navel contemplation exercise. A properly
clamped cable will not pull free, if it does, then the clamp is faulty.
Which wire is disconnected is irrelevant, as the chance of actually
electrocuting someone is pretty close to zero! This is another example
of ISO9000 standards, which achieves nothing apart from ticking boxes.

Regards
Capitol