Crush-Resistant TC-ER 600V and 1kV Mining Power and Lighting Cable
Heavy-duty crush- and impact-resistant UL 1277 Type TC-ER (Exposed Run) 600 V and 1 kV mining power distribution and drift stringer lighting cable. Engineered to pass UL 1569 Type MC metal-clad crush and impact tests without metallic armour using a reinforced dual-layer thermoset CPE/TPU impact-barrier jacket over 90 C XHHW-2 XLPE or EPR cores (14 AWG to 500 kcmil). MOQ 50 m; lead time 7 to 45 working days.
Mineral processing concentrators, coal preparation plants, overland conveyor galleries and underground mine drift lighting networks require 600 V and 1 kV feeder and branch cables that can transition directly from cable tray to motors, luminaire drops and field disconnects without conduit or rigid metallic armour. Standard tray cable is vulnerable to falling ore and rib pinch, whereas Crush-Resistant Type TC-ER (Exposed Run) 600 V and 1 kV Mining Power and Stringer Lighting Cable is engineered to meet UL 1277 Exposed Run crush and impact criteria equivalent to UL 1569 metal-clad (Type MC) cable.
By combining 90 C wet/dry XHHW-2 cross-linked polyethylene (XLPE) or thermoset EPR insulated copper conductors (Class B or flexible Class C/H stranding from 14 AWG to 500 kcmil) with an impact-absorbing inner polymeric matrix, high-tenacity synthetic binder/braid reinforcement and an extra-heavy-duty thermoset CPE or halogen-free LSZH outer sheath, this cable resists severe rock impact while remaining lighter and easier to terminate than interlocked armour.
In 14 AWG to 8 AWG sizes with high-visibility yellow or orange jackets, the cable serves as a rugged underground drift and tunnel stringer lighting trunk accepting molded LED luminaire drop tees and messenger-wire J-hooks. In 6 AWG to 500 kcmil sizes, it feeds crushers, flotation cells, slurry pumps and ventilation fans. TEBAOFLEX supplies custom lengths from a 50 m MOQ with a 7 to 45 working day lead time.
Explore the mining and tunneling cable range for related configurations.
Construction
The representative horizontal sample illustrates the 3C x 2/0 AWG + 1 x 6 AWG Ground 600 V / 1 kV Crush-Resistant Type TC-ER Mining Power Cable, showing three stranded copper phase conductors with 90 C XHHW-2 XLPE/EPR insulation, one green-insulated or bare copper equipment grounding conductor, impact-cushioning inner polymeric matrix with synthetic reinforcing braid and a heavy black/yellow MSHA and UL 1277 FT4 flame-retardant CPE outer jacket.
| Component | Material and construction |
|---|---|
| Phase Conductors (Class B / Class C or Flexible Copper) | Annealed bare or tinned stranded copper conductors (14 AWG to 500 kcmil) per ASTM B8 / B33 for low-loss power and stringer lighting distribution. |
| 90 C Wet/Dry XHHW-2 XLPE or EPR Insulation | Cross-linked polyethylene (XHHW-2 / RW90) or ethylene propylene rubber (RHW-2 / EPR) insulation rated 90 C wet and dry at 600 V or 1000 V. |
| Equipment Grounding Conductor (GND) | Bare stranded copper or green/yellow insulated copper grounding conductor sized to UL 1277 and NEC Table 250.122. |
| Impact-Cushioning Inner Matrix & Ripcord | Extruded elastomeric impact-absorption inner layer with high-tenacity synthetic reinforcement and aramid jacket ripcord. |
| Heavy-Duty TC-ER / MSHA Outer Jacket | Sunlight-, oil-, chemical- and crush-resistant thermoset CPE, TPU or LSZH outer jacket available in high-visibility yellow (stringer lighting) or black (plant feeders). |
Applications
Specify Crush-Resistant Type TC-ER 600 V and 1 kV Mining Power and Lighting Cable for exposed runs, messenger-wire suspension and tray-to-equipment drops across surface and underground mines.
- Underground mine drift, decline portal and tunnel excavation stringer lighting trunks suspended on rib J-hooks or catenary messenger wires (14 AWG to 10 AWG).
- Coal preparation plants, copper/gold concentrators, SAG/ball mill decks and flotation cell motor feeders requiring UL 1277 Exposed Run (TC-ER) tray-to-motor drops.
- Overland conveyor walkways, transfer towers and crusher houses exposed to falling ore, washdown water and vibration.
- Rapid replacement for rigid conduit or corroded interlocked metal armour (MC/TECK) in wet, acidic or high-vibration mineral processing zones.
Related selection resources
Specifications
| Parameter | Value |
|---|---|
| Design standard reference | Engineered to UL 1277 Type TC-ER (Exposed Run), UL 44 (XHHW-2 / RHW-2), IEEE 1202 / FT4 flame test and MSHA flame-resistance criteria |
| Rated voltage classes | 600 V and 600 V / 1000 V (1 kV) dual-rated constructions across 14 AWG to 500 kcmil |
| Crush & impact resistance | Reinforced dual-layer impact barrier engineered to UL 1277 Exposed Run crush and impact levels comparable to Type MC cable |
| Operating temperature range | -40 C cold impact to +90 C continuous wet/dry conductor temperature (130 C overload; 250 C short-circuit) |
| Minimum installation bend radius | 8 x overall cable diameter (vs 12 x O.D. for armoured cable), simplifying tight junction box entries |
| Commercial supply terms | Minimum order quantity 50 m; manufacturing lead time 7 to 45 working days in black or high-visibility safety yellow |
| Selection boundary vs CSA TECK90 & SOOW | Select Crush-Resistant TC-ER for armorless exposed-run plant feeders and drift stringer lighting; select TECK90 (6884) where metallic armour is mandated or SOOW (2309) for portable flexing. |
| Part Designation | Voltage Rating | Core Configuration | Phase Conductor Size | XHHW-2 / EPR Wall (mm) | Impact Jacket Wall (mm) | Nominal Overall O.D. (mm) | Approx. Net Mass (kg/km) | Ampacity at 90 °C Column (A) |
|---|---|---|---|---|---|---|---|---|
| TC-ER-CI 600V 3x14 AWG + 14 GND Stringer | 600 V | 3C + GND | 14 AWG (2.08 mm²) | 0.76 | 2.15 | 11.4 | 185 | 25 |
| TC-ER-CI 600V 3x12 AWG + 12 GND Stringer | 600 V | 3C + GND | 12 AWG (3.31 mm²) | 0.76 | 2.15 | 12.6 | 235 | 30 |
| TC-ER-CI 600V 4x12 AWG + 12 GND Stringer | 600 V | 4C + GND | 12 AWG (3.31 mm²) | 0.76 | 2.15 | 13.8 | 290 | 24 |
| TC-ER-CI 600V 3x10 AWG + 10 GND Stringer | 600 V | 3C + GND | 10 AWG (5.26 mm²) | 0.76 | 2.15 | 14.2 | 325 | 40 |
| TC-ER-CI 600V 4x10 AWG + 10 GND Stringer | 600 V | 4C + GND | 10 AWG (5.26 mm²) | 0.76 | 2.40 | 15.8 | 410 | 32 |
| TC-ER-CI 600V 3x8 AWG + 10 GND Feeder | 600 V | 3C + GND | 8 AWG (8.37 mm²) | 1.14 | 2.40 | 17.6 | 515 | 55 |
| TC-ER-CI 600V 4x8 AWG + 10 GND Feeder | 600 V | 4C + GND | 8 AWG (8.37 mm²) | 1.14 | 2.40 | 19.4 | 640 | 44 |
| TC-ER-CI 600V 3x6 AWG + 8 GND Feeder | 600 V | 3C + GND | 6 AWG (13.3 mm²) | 1.14 | 2.40 | 19.8 | 710 | 75 |
| TC-ER-CI 600V 3x4 AWG + 8 GND Feeder | 600 V | 3C + GND | 4 AWG (21.2 mm²) | 1.14 | 2.79 | 22.8 | 1020 | 95 |
| Part Designation | Voltage Rating | Core Configuration | Phase Conductor Size | XHHW-2 / EPR Wall (mm) | Impact Jacket Wall (mm) | Nominal Overall O.D. (mm) | Approx. Net Mass (kg/km) | Ampacity at 90 °C Column (A) |
|---|---|---|---|---|---|---|---|---|
| TC-ER-CI 1kV 3x2 AWG + 6 GND Power | 600 V / 1 kV | 3C + GND | 2 AWG (33.6 mm²) | 1.40 | 2.79 | 26.4 | 1480 | 130 |
| TC-ER-CI 1kV 3x1/0 AWG + 6 GND Power | 600 V / 1 kV | 3C + GND | 1/0 AWG (53.5 mm²) | 1.65 | 3.18 | 31.2 | 2210 | 170 |
| TC-ER-CI 1kV 3x2/0 AWG + 6 GND Power | 600 V / 1 kV | 3C + GND | 2/0 AWG (67.4 mm²) | 1.65 | 3.18 | 33.8 | 2690 | 195 |
| TC-ER-CI 1kV 3x4/0 AWG + 4 GND Power | 600 V / 1 kV | 3C + GND | 4/0 AWG (107 mm²) | 1.65 | 3.56 | 39.4 | 4050 | 260 |
| TC-ER-CI 1kV 3x250 kcmil + 4 GND Power | 600 V / 1 kV | 3C + GND | 250 kcmil (127 mm²) | 1.90 | 3.56 | 43.2 | 4820 | 290 |
| TC-ER-CI 1kV 3x350 kcmil + 3 GND Power | 600 V / 1 kV | 3C + GND | 350 kcmil (177 mm²) | 1.90 | 3.94 | 49.0 | 6580 | 350 |
| TC-ER-CI 1kV 3x500 kcmil + 2 GND Power | 600 V / 1 kV | 3C + GND | 500 kcmil (253 mm²) | 1.90 | 4.32 | 56.4 | 9140 | 430 |
| TC-ER-CI 600V 7x12 AWG Control | 600 V | 7C Control | 12 AWG (3.31 mm²) | 0.76 | 2.40 | 16.9 | 465 | 21 |
| TC-ER-CI 600V 12x12 AWG Control | 600 V | 12C Control | 12 AWG (3.31 mm²) | 0.76 | 2.79 | 22.1 | 760 | 15 |
Ampacities for 3-phase power cables follow NEC Table 310.16 (90 C XHHW-2/RHW-2 column at 30 C ambient); apply 0.88 ambient correction factor for 40 C mine drift environments.
Specify high-visibility yellow outer sheath for underground drift stringer lighting or UV-stabilized black outer sheath for surface plant cable trays.
Standards
| Standard or specification | Application |
|---|---|
| UL 1277 | Electrical Power and Control Tray Cables with Optional Optical-Fiber Members (Type TC-ER Exposed Run crush and impact qualification). |
| UL 44 & UL 1685 / IEEE 1202 | Thermoset-insulated XHHW-2 / RHW-2 90 C wet/dry conductors and 70,000 BTU/hr FT4 vertical tray flame propagation test. |
| NEC Article 336 (NFPA 70) | Type TC-ER exposed-run installation rules between cable tray and utilization equipment without metallic raceway. |
| MSHA 30 CFR Part 7 / Part 18 | Flame-resistance acceptance test for underground mine lighting and power distribution cables. |
Certifications and document support
TEBAOFLEX company certificates and quality system documentation
UL Standards — UL 1277 Type TC-ER Power and Control Tray Cables
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