Product Brochure

57
www.carlon.com
(2) A smooth inner surface with integral reinforcement
within the conduit wall, designated as Type LFNC-B
(3) A corrugated internal and external surface without
integral reinforcement within the conduit wall,
designated as Type LFNC-C
LFNC is flame resistant and, with fittings, is approved for the
installation of electrical conductors.
FPN: FNMC is an alternative designation for LFNC.
356.10 Uses Permitted. LFNC shall be permitted to be
used in exposed or concealed locations, for the following
purposes:
FPN: Extreme cold may cause some types of nonmetallic
conduits to become brittle and therefore more susceptible
to damage from physical contact.
(1) Where flexibility is required for installation,
operation, or maintenance
(2) Where protection of the contained conductors is
required from vapors, liquids, or solids
(3) For outdoor locations where listed and marked as
suitable for the purpose
(4) For direct burial where listed and marked for the
purpose
(5) Type LFNC-B shall be permitted to be installed in
lengths longer than 1.8 m (6 ft.) where secured in
accordance with 356.30
(6) Type LFNC-B as a listed manufactured prewired
assembly, metric designator 16 through 27 (trade size
1
/2 through 1) conduit
356.12 Uses Not Permitted. LFNC shall not be used as
follows:
(1) Where subject to physical damage
(2) Where any combination of ambient and conductor
temperatures is in excess of that for which the
LFNC is approved
(3) In lengths longer than 1.8 m (6 ft.), except as permitted
by 356.100(5) or where a longer length is approved as
essential for a required degree of flexibility
(4) Where voltage of the contained conductors is in
excess of 600 volts, nominal