Originally Posted By: jtedesco
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New provision for use of GFCI protection where equipment grounding means is not available in switch enclosure
404.9 Provisions for General-Use Snap Switches.
(B) Grounding. Snap switches, including dimmer and
similar control switches, shall be effectively grounded and
shall provide a means to ground metal faceplates, whether
or not a metal faceplate is installed. Snap switches shall be
considered effectively grounded if either of the following
conditions is met:
(1) The switch is mounted with metal screws to a metal
box or to a nonmetallic box with integral means for
(2) An equipment grounding conductor or equipment
bonding jumper is connected to an equipment grounding
termination of the snap switch.
Exception to (B): Where no grounding means exists within
the snap-switch enclosure or where the wiring method does
not include or provide an equipment ground, a snap switch
without a grounding connection shall be permitted for replacement
purposes only. A snap switch wired under the
provisions of this exception and located within reach of
earth, grade, conducting floors, or other conducting surfaces
shall be provided with a faceplate of nonconducting,
noncombustible material or shall be protected by a groundfault
New provision for the use of GFCI protection for luminaires where equipment grounding conductor is not available at outlet.
410.18 Exposed Luminaire (Fixture) Parts.
(A) Exposed Conductive Parts. Exposed metal parts shall
be grounded or insulated from ground and other conducting
surfaces or be inaccessible to unqualified personnel. Lamp
tie wires, mounting screws, clips, and decorative bands on
glass spaced at least 38 mm (11⁄2 in.) from lamp terminals
shall not be required to be grounded.
(B) Made of Insulating Material. Luminaires (fixtures)
directly wired or attached to outlets supplied by a wiring
method that does not provide a ready means for grounding
shall be made of insulating material and shall have no exposed
Exception No. 1: Replacement luminaires (fixtures) shall be
permitted to connect an equipment grounding conductor from
the outlet in compliance with 250.130(C). The luminaire (fixture)
shall then be grounded in accordance with 410.18(A).
NEW Exception No. 2: Where no equipment grounding conductor
exists at the outlet, replacement luminaires (fixtures)
that are GFCI protected shall not be required to be connected
to an equipment grounding conductor.
Joe Tedesco, NEC Consultant