TELCOFLEX® IV
Central Office Power Wire and Cable
Class I Flexible Strand With Braid
Low Smoke, Non-Halogenated Insulation, Lead-Free and Silicone-Free, UL Central Office Power Cable with Cotton Braid. 105°C Dry as AWM, 60°C Wet; UL Listed RHH/ST1 90°C Dry and VW-1, 600 Volts DC or AC. Sizes 1/0 AWG and larger are UL Listed for CT USE. CSA AWM I B 105°C 600 Volt FT4.
This specification covers the construction requirements for limited smoke, non-halogenated central office power wire and cable, insulated with Southwire TelcoHyde®. UL listed Type RHH/ST1 with cotton braid for use in accordance with the National Electrical Code. The construction of the wire and cable is in accordance with Specification KS24194™, (List 4), Telcordia GR-347-CORE and ATIS-0600017.2014, Underwriters Laboratories requirements, and the requirements of CSA for the FT4 flame test. Sizes 1/0 AWG and larger are UL "CT Use" (Cable Tray) rated. Meets IEC including 60674 & 60332 and REACH – European Community Regulation.
Size: 8 AWG through 750KCMIL Single Conductor
Conductors: Class I modified bunched (8 and 6 AWG) or rope-bunched (4 AWG and larger) stranded, tin-coated copper conforming to ASTM B-33 and Underwriters Laboratories requirements. An opaque Mylar tape shall be applied over the conductor to facilitate stripping.
Insulation: 105°C rated low smoke, non-halogen TelcoHyde® conforming to Underwriters’ Laboratories Standard 44, Subjects 509 and 758, and CSA C22.2 No. 210-11. In addition, TelcoHyde® complies with the requirements of Telcordia Specification GR-347-CORE. The insulation has a Limiting Oxygen Index of 35%.
Separator: On sizes 6 AWG and larger, a 1 mil clear mylar tape shall be applied over the insulation.
Covering and Finisher: On all sizes, a natural cotton braid conforming to UL Standard 44 requirements is applied overall. A section of completed cable has a Limiting Oxygen Index of 35%. A moisture resistant, fire retardant saturant and a colored finisher are applied to the braid.
Surface Marking: Two sides of the cable shall be printed using an ink of a contrasting color and with the following information: "SOUTHWIRE AIW™ CORD BRAND TELCOFLEX® III/KS24194™ L4 NON-HAL (UL) E18321 SIZE (AWG or KCMIL) 600 VOLTS RHH ST1 FT4 OR AWM 3578 60°C WET VW-1 — LL8825 CSA AWM I B 105°C 600 VOLTS FT4 YEAR TIME JULIAN DATE — MEETS IEC INCLUDING 60674 & 60332." Add "FOR CT USE" before "(AWM3578)" on Sizes 1/0 AWG and larger. Sequential footage markings shall be applied at 2 foot intervals on one side of the cable.
Testing: Physical and electrical tests in accordance with the requirements of UL Standard 44, Subject 509 and 758, and CSA Standard C22.2 No. 210-11 as AWM.
Labels: UL and CSA tags and labels shall be applied to all packages.
| Size | Stranding (24 AWG) | Nominal CMA | Conductor Diamter | Insulation Min Avg Walls | Nominal Insulation Diameter | Nominal OD Over Braid | MAX. DC RES @ 20°C | Ampacity per NEC Table 310.15 (B)(16) | |
|---|---|---|---|---|---|---|---|---|---|
| AWG | In | Mils | In | In | Ohms/MFT | 75°C | 90°C | ||
| 8 | 41 | 16510 | .153 | 60 | .277 | .312 | 0.679 | 50 | 55 |
| 6 | 65 | 26240 | .189 | 60 | .312 | .346 | 0.436 | 65 | 75 |
| 4 | 126 | 41740 | .260 | 60 | .383 | .418 | 0.274 | 85 | 95 |
| 2 | 168 | 66360 | .315 | 60 | .438 | .478 | 0.172 | 115 | 130 |
| 1/0 | 266 | 105600 | .392 | 80 | .555 | .595 | 0.109 | 150 | 170 |
| 2/0 | 342 | 133100 | .455 | 80 | .618 | .658 | 0.0868 | 175 | 195 |
| 4/0 | 532 | 211600 | .590 | 80 | .745 | .785 | 0.0546 | 230 | 260 |
| 350 MCM | 888 | 350000 | .760 | 95 | .953 | .993 | 0.0334 | 310 | 350 |
| 500 MCM | 1221 | 500000 | .890 | 95 | 1.090 | 1.130 | 0.0234 | 380 | 430 |
| 750 MCM | 1850 | 750000 | 1.094 | 110 | 1.320 | 1.360 | 0.0157 | 475 | 535 |
TELCOFLEX® is a registered trademark of Southwire. TelcoHyde™ is a trademark of Southwire.
KS24194™ is a trademark of General Electric Corporation.
