On Feb 8, 7:16*pm, Jim Redelfs wrote:

Leaving slack cable inside a wall is a bad idea for several reasons: *The
slack will interfere with insulation. *It may be vulnerable to damage by
future attachments to the wall. *It is also contrary to common installation
practice.

JR:

I'm thinking mostly about exposed work here, although I also leave
this extra
when doing new work in a wall. Old work in a wall is always going to
have slack.

Jerry - That provision only applies to conductors passing through
without
splicing, as in "courtesy loops" left for the next guy. If you strip
and cut
the wire off 14" long and skin it at the midpoint
and end for attaching to 2 device screws, it wouldn't count as two.

A P