Product Brochure

63
www.carlon.com
(f) At the luminaire (fixture) or lampholder end, the
conduit(s) is threaded wrench-tight into the box,
conduit body, or integral wiring enclosure, or into
hubs identified for the purpose. Where a box or
conduit body is used for support, the luminaire
(fixture) shall be secured directly to the box or
conduit body, or through a threaded conduit nipple
not over 75 mm (3 in.) long.
(G) Enclosures in Concrete or Masonry. An enclosure
supported by embedment shall be identified as
suitably protected from corrosion and securely
embedded in concrete or masonry.
(H) Pendant Boxes. An enclosure supported by a
pendant shall comply with 314.23(H)(1) or (2).
(1) Flexible Cord. A box shall be supported from a
multiconductor cord or cable in an approved
manner that protects the conductors against strain,
such as a strain-relief connector threaded into a box
with a hub.
(2) Conduit. A box supporting lampholders or lumi-
naires (lighting fixtures), or wiring enclosures within
luminaires (fixtures) used in lieu of boxes in accor-
dance with Section 300.15(B), shall be supported by
rigid or intermediate metal conduit stems. For stems
longer than 450 mm (18 in.), the stems shall be
connected to the wiring system with flexible fittings
suitable for the location. At the luminaire (fixture)
end, the conduit(s) shall be threaded wrench-tight
into the box or wiring enclosure, or into hubs
identified for the purpose.
Where supported by only a single conduit, the threaded
joints shall be prevented from loosening by the use of
set-screws or other effective means, or the luminaire
(fixture), at any point, shall be at least 2.5 m (8 ft.) above
grade or standing area and at least 900 mm (3 ft.)
measured horizontally to the 2.5 m (8 ft.) elevation from
windows, doors, porches, fire escapes, or similar locations.
A luminaire (fixture) supported by a single conduit shall
not exceed 300 mm (12 in.) in any horizontal direction
from the point of conduit entry.