Specification

K-13
Technical Information
ENT (Electrical Non-Metallic Tubing)
1. Cut ENT square and cleanly.
2. Insert end into fitting, making sure two (2) full corrugations
are snapped into fitting beyond flexible tabs (2 clicks).
3. ENT should be tied to rebar at 2–3 foot intervals to prevent
flotation. Keep ENT straight. Small deflections over a long run may
accumulate significant degrees of bend that will affect conductor
installation. Suitable materials include wire, tie wraps and tape.
4. When using rigid non-metallic conduit fittings for concrete
tight performance:
Concrete Encasement Guidelines
A. Do not use chemical primer or cleaner.
B. Use a brush to apply a light, uniform coat of cement labeled
for use with ENT on the coupling and ENT.
C. Do not use a dauber.
D. Brush excess cement out of ENT grooves.
E. Promptly insert ENT into fitting while cement is wet,
until the stop is reached, and give a quarter turn.
F. Do not disturb until joint is set.
Specifications:
1.1 Electrical Non-Metallic Tubing (ENT) is designed to replace EMT,
flexible metal conduit or other raceway or cable systems, for
installation in accordance with Article 362 of the National Electrical
Code
®
Section 12-1500 of the CEC, other applicable sections
of the Code and local codes.
1.2 Any ENT used shall be listed to the requirements of UL Standard
UL 1653 in accordance with Article 362 of the NEC
®
and Section
12-1500 of the CEC.
1.3 Any ENT used shall meet the requirements of BI National Standard
CAN/CSA-C22.2 No. 227.1-UL1653 and shall be Listed/Certified
in accordance to the Electrical Codes.
1.4 Carlon’s
®
ENT shall be installed per the technical assessment
prepared by fire cause analysis for use in 1-hour and 2-hour
rated construction.
1.5 Penetration of fire-rated walls, floors or ceilings shall use
Classified Through-Penetration Firestop Systems described in
the current Underwriters Laboratories Fire Resistance Directory.
1.6 Fittings and outlet boxes designed for use with ENT shall be listed.
All fittings, boxes and accessories shall be from one manufacturer.
1.7 Only Carlon
®
ENT Blue
™
cement recommended specifically
for use with ENT and rigid non-metallic fittings shall be used.
1.8 Unless indicated differently on drawings, ENT systems shall be
color coded: BLUE for branch and feeder circuit wiring, YELLOW
for communications and RED for fire alarm and emergency
systems, or colors can designate different voltages.
1.9 ENT, fittings and accessories shall be manufactured by Carlon
®
.
Features:
• Recognized for use with PVC rigid non-metallic conduit fittings
with all sizes of ENT
• ENT rated for 90°C conductors U.S., and 75°C Canada
• One-piece ENT Coupling, Threaded Terminator and RNC Transition
F
itting are rated concrete tight without tape
• Recognized for use in 2-hour fire-resistive nonload-bearing
and load-bearing wall assemblies
• Recognized for use in 1-hour fire-resistive nonload-bearing
wall assemblies
• Recognized for use in a fire-resistive ceiling assembly
(up to 3 hours)
• Recognized for Through-Penetration Firestop systems
as c
lassified by UL to meet ICC building codes.
• Conductors easily push through the raceway
(up to a
pproximately 50 feet)*
• For use in buildings in accordance with NEC
®
Article 362/
CEC Section 12-1500
• Outside Diameters meet IPS Dimensions
• Storage -4°F to 158°F
• Handling -4°F to 104°F
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