Drawing
Order number of pieces required, in multiples of Standard Package Quantity.
K.6
Cable/ConduitBeam/PurlinHangers/Hanging
Systems
Stud WallCommunication/
Low Voltage
Dry WallAcousticalMiscellaneousIndex
Sizing Information
Reference
Codes & Standards
Reference
conduit body is not larger than the largest trade size of the conduit
or tubing:
(1) Intermediate metal conduit, Type IMC
(2) Rigid metal conduit, Type RMC
(3) Rigid polyvinyl chloride conduit, Type PVC
(4) Reinforced thermosetting resin conduit, Type RTRC
(5) Electrical metallic tubing, Type EMT
(F) Raceway-Supported Enclosures, with Devices, Luminaires,
or Lampholders. An enclosure that contains a device(s), other than
splicing devices, or supports a luminaire(s), lampholder, or other
equipment and is supported by entering raceways shall not exceed
1650cm
3
(100 in.
3
) in size. It shall have threaded entries or have
hubs identi ed for the purpose. It shall be supported by two or more
conduits threaded wrenchtight into the enclosure or hubs. Each
conduit shall be secured within 450mm (18 in.) of the enclosure.
Exception No. 1: Rigid metal or intermediate metal conduit shall be
permitted to support a conduit body of any size, including a conduit
body constructed with only one conduit entry, provided the trade size
of the conduit body is not larger than the largest trade size of
the conduit.
Exception No. 2: An unbroken length(s) of rigid or intermediate
metal conduit shall be permitted to support a box used for luminaire
or lampholder support, or to support a wiring enclosure that is an
integral part of a luminaire and used in lieu of a box in accordance
with 300.15 (B), where all of the following conditions are met:
(a) The conduit is securely fastened at a point so that the length of
conduit beyond the last point of conduit support does not exceed
900mm (3 ft.).
(b) The unbroken conduit length before the last point of conduit
support is 300mm (12 in.) or greater, and that portion of the conduit is
securely fastened at some point not less than 300mm (12 in.) from its
last point of support.
(c) Where accessible to unquali ed persons, the luminaire or
lampholder, measured to its lowest point, is at least 2.5m (8 ft.)
above grade or standing area and at least 900mm (3 ft.) measured
horizontally to the 2.5m (8 ft.) elevation from windows, doors,
porches, re escapes, or similar locations.
(d) A luminaire supported by a single conduit does not exceed
300mm (12 in.) in any direction from the point of conduit entry.
(e) The weight supported by any single conduit does not exceed
9 kg (20 lbs.).
(f) At the luminaire or lampholder end, the conduit(s) is threaded
wrenchtight into the box, conduit body, or integral wiring enclosure,
or into hubs identi ed for the purpose. Where a box or conduit body
is used for support, the luminaire shall be secured directly to the box
or conduit body, or through a threaded conduit nipple not over
75mm (3 in.) long.
314.27 Outlet Boxes.
(A) Boxes at Luminaire or Lampholder Outlets. Outlet boxes or
NFPA 70; National Electric Code; 2011 Revision
(continued)