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11.1.2.9 Upturned lugs, a cupped washer, or the equivalent shall be capable of retaining a conductor of
the size specified in 11.1.2.2 under the head of the screw or washer.
11.1.2.10 The free length of a lead inside an outlet box or wiring compartment shall be 6 inches (152 mm)
or more if the lead is intended for field connection to an external circuit.
Exception: A lead may be less than 6 inches long if it is evident that the use of a longer lead might result
in a risk of fire or electric shock.
11.1.2.11 A lead in a wiring compartment intended for field connection shall be provided with strain relief
complying with 42.3 so that stress on the lead will not be transmitted to terminals, splices, or interior
wiring.
11.1.2.11 revised October 15, 2004
11.1.2.12 A terminal intended for connection of a grounded power-supply conductor shall be made of or
plated with metal substantially white in color and shall be readily distinguishable from other terminals; or
proper identification of that terminal shall be clearly identified in some other manner, such as on an
attached wiring diagram.
11.1.2.13 The surface of a lead for the connection of a grounded power-supply conductor shall have a
white or gray color and shall be readily distinguishable from other leads.
11.1.2.13 revised October 15, 2004
11.1.2.14 For a device having components intended to be mounted on a cover of an outlet box or similar
enclosure, wiring terminals or other live parts and sharp-edged grounded or dead metal parts shall be
located or protected so that they will not be forced against wiring in the box during installation or servicing.
11.1.2.15 With reference to the requirements in 11.1.2.14, back wiring terminals may be employed if they
are recessed or are protected by close-fitting barriers of insulating material or the equivalent that will
prevent contact with wiring installed in the box. Terminals that do not project into the box beyond the plane
of the front edge of the box are acceptable.
11.1.2.16 With reference to 11.1.2.15, guards provided along the sides of terminals and extending not
less than 1/4 inch (6.4 mm) beyond the terminals before wiring, with a corresponding guard between
double-pole switching mechanisms, are acceptable.
11.1.2.17 To determine whether a construction other than that described in 11.1.2.16 will prevent wiring
in the box from being forced against live parts or sharp edges, a trial installation is to be made, using only
ordinary care and employing Type NM cable or supply cord of the sizes having ampacities in accordance
with the rating of the device. The wire is to extend 6 inches (152 mm) inside the box from its point of
entrance into the box.
OCTOBER 15, 2004UL 45824
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