I was always taught to go that extra inch.
The reasons given to me when I was learning
was safety first. The tape is an extra layer of protection to the uneducated and
the youngsters that have more curiosity than
I was also taught to tape my wirenuts for
the same reasons. The master sparky kept
telling me that safety is a habit. If you
maintain safety habits and something out of
the ordinary comes up, it raises alarm bells
that make you extra cautious. It has saved
my butt more than once.
He also told me it is a "work signature"
where he could tell if someone else altered
his work or he could judge the quality of
someone else's work and judgement.
I am NOT saying that the electricians who
are not doing this are unsafe. What I am
saying is safety is a habit, and shortcuts
can lead to accidents.
When I started working for him, I thought he
was a PITA (first word is pain
time went by, I grew to respect and admire him.