Kilowatt said:
More proof you can't argue with an idiot that thinks they know everything.
They call me stoopid.
Q. Is it permissible to wrap a stranded wire around the screw terminal
of
a
receptacle?
A. According to the UL White Book under the RTRT category, stranded wire is
permitted to terminate to a screw terminal of a receptacle [110.3(B)].
http://ecmweb.com/ar/electric_stumped_code_8/index.htm
In the field, stranded wires in the 18, 16, 14, 12, and 10 AWG sizes are
often wrapped around screws to the right.
110 3(b) simply states that the manufacturers listing instruction shall be
followed. Section 110.14 also states:
Connection by means of wire-binding screws or studs and nuts that have
upturned lugs or the equivalent shall be permitted for 10 AWG or smaller
conductors.
110.14 Electrical Connections.
Because of different characteristics of dissimilar metals, devices such as
pressure terminal or pressure splicing connectors and soldering lugs shall
be identified for the material of the conductor and shall be properly
installed and used. Conductors of dissimilar metals shall not be intermixed
in a terminal or splicing connector where physical contact occurs between
dissimilar conductors (such as copper and aluminum, copper and copper-clad
aluminum, or aluminum and copper-clad aluminum), unless the device is
identified for the purpose and conditions of use. Materials such as solder,
fluxes, inhibitors, and compounds, where employed, shall be suitable for the
use and shall be of a type that will not adversely affect the conductors,
installation, or equipment.
FPN: Many terminations and equipment are marked with a tightening torque.
(A) Terminals. Connection of conductors to terminal parts shall ensure a
thoroughly good connection without damaging the conductors and shall be made
by means of pressure connectors (including set-screw type), solder lugs, or
splices to flexible leads. Connection by means of wire-binding screws or
studs and nuts that have upturned lugs or the equivalent shall be permitted
for 10 AWG or smaller conductors.
Terminals for more than one conductor and terminals used to connect aluminum
shall be so identified.