Temperature Rating

• 80°C to –30°C Dry
• 60°C Wet
• 70°C Oil resistant

References & Ratings

• UL 360, File Reference E26540, CSA Certified File LL51593, CSA C22.2 Number 56
• NEC® 250.118(6), 350.60, 390.15, 501.10(B)(2), 502.10(A)(2), 503.10(A)(2), 511.7(A)(1), 620.21(A)(d), 645.5(D)(2), 680.21, 680.42, 695.6(E), 695.14(E)
• Canadian Electrical Code (CEC) Part I Clause 12–1300
• UL approved for use in direct burial applications including concrete and earth burial (Sizes 3/8“ through 4”)
• Conduit in sizes 11⁄2″ and larger requires grounding conductor per NEC® 350.60
• May be installed under raised computer room floors per NEC® 645.5(D)

Grounding

Permanent circuit ground protection is provided through the continuous bonding strip built into the conduit core in sizes 3/8“ through 1–1⁄4”. A separate grounding conductor is required by the NEC® for trade sizes 11⁄2″ and larger. The Canadian Electric Code requires a grounding conductor for all trade sizes of Liquidtight Flexible Metal Conduit.

Markings

The surface of the outer jacket shall be clearly marked with a legible print legend in compliance with UL 360 and CSA C22.2 No. 56.

Performance Tests

In accordance with UL 360 and CSA C22.2 No. 56, the completed UL LIQUID-TUFF™ Liquidtight Flexible Steel Conduit shall meet all of the performance requirements outlined below

UL Performance Tests

• Resistance and High Current
• Fault Current
• Impact
• Deformation Test Pipe Stiffness
• Flexibility
• Zinc Coating
• Veritical Flame
• Pinhole Test
• Mechanical Water Absorption
• Moisture Penetration
• Sunlight Resistance
• Test for Secureness of Fittings
• Test for Durability of Ink Printing

CSA Performance Tests

• Physical Properties
• Original Tensile and Elongation
• Air Oven Aging Test
• Oil Immersion Test
• Deformation Test
• Tension
• Low Temperature Flexibility
• Vertical Flame
• Cold Impact
• Compatibility with Connectors