Application & Operating Conditions
Type SHD-GC 5000 V medium-voltage portable power cable feeds high-output 2,400 V and 4,160 V underground longwall shearers, high-seam continuous miners, loading shovels, rotary blast-hole drills, and floating cutterhead dredges. Manufactured strictly to ICEA S-75-381 / NEMA WC 58, it upgrades dielectric reliability over 2 kV trailing cables by adding extruded semi-conducting conductor and insulation stress-control shields around a heavy 110–120 mil ozone-resistant EPR wall.
4.16 kV Longwall Shearers & Miners
Supports high-kilowatt longwall face motors over extended trailing runs with reduced voltage drop, torsion-stabilized integral filling, and continuous ground-check safety monitoring.
Loading Shovels, Drills & Dredges
Withstands repetitive ground dragging, rock impact, hydraulic oil exposure, and wet pit conditions on surface shovels, barge dredges, and mobile substation tie-ins.
Choice of CPE or Lightweight TPU
Select mold-cured thermosetting CPE for underground flame/heat ruggedness or extra-tough TPU to cut 10–18% off trailing weight and maximize cut-through resistance.
Medium-Voltage Termination Integrity: All 5 kV SHD-GC phases incorporate free-stripping insulation shielding and color-coded phase tracer braids (Black, White, Red) to streamline cold-shrink stress-cone terminations inside mine couplers.
Cable Construction (ICEA S-75-381 Type SHD-GC 5000 V)
True medium-voltage shielded trailing construction engineered from flexible rope-lay tinned copper through triple dielectric stress control, copper braid phase screens, and heavy reinforced outer sheathing.
| Layer / Component | Material & ICEA S-75-381 / NEMA WC 58 Engineering Specification |
|---|---|
| 1. Power Conductors (3×) | Flexible rope-lay stranded annealed tinned copper conductors, 6 AWG (133 strands) through 500 kcmil (1,221 strands), per ASTM B172 and ASTM B33. |
| 2. Conductor Stress Shield | Extruded thermosetting semi-conducting strand shield bonded over each flexible tinned copper conductor to eliminate air-void ionization. |
| 3. 5 kV EPR Insulation | Corona- and ozone-resistant +90°C Ethylene Propylene Rubber (EPR): 110 mil (2.79 mm) wall for 6 AWG–4/0 AWG and 120 mil (3.05 mm) wall for 250–500 kcmil. |
| 4. Insulation Screen & Braid | Extruded/taped semi-conducting insulation shield overlaid with a tinned copper and color-coded nylon tracer braid (minimum 60% metal coverage) on every power core. |
| 5. Grounds (2×) & GC Pilot (1×) | Two uninsulated stranded tinned copper grounding conductors (10 AWG to 4/0 AWG) contacting the phase shields, plus one 8 AWG yellow polypropylene-insulated ground-check core. |
| 6. Outer Jacket (CPE or TPU) | Integral elastomeric fill and reinforcing binder under a heavy 185–280 mil mold-cured black CPE jacket or high-visibility extra-tough TPU jacket. |
Type SHD-GC 5kV cutaway: 3 tinned copper phases with semi-con shields, 110–120 mil EPR, tinned copper braid screens, 2 bare grounds, 8 AWG yellow GC, and CPE/TPU sheath.
Technical Characteristics
Electrical, dielectric, thermal, and mechanical operating limits for 5,000 V Type SHD-GC trailing service.
| Parameter | ICEA S-75-381 / NEMA WC 58 Rated Value |
|---|---|
| Rated System Voltage | 5,000 V AC maximum (100% / 133% insulation level reference for 4.16 kV mine systems) |
| Conductor Temperature Rating | +90°C continuous operation | +130°C emergency overload | +250°C short circuit |
| Ambient Operating Range | -40°C to +90°C (CPE jacket) | -50°C to +90°C (TPU jacket) |
| Minimum Bending Radius | 6 × overall cable diameter (static routing); 8–10 × OD on motorized monospiral reels |
| Diameter Tolerance | +8% / -5% of nominal outside diameter |
| Design & Compliance Standards | ICEA S-75-381 / NEMA WC 58; ASTM B172 & ASTM B33; CAN/CSA-C22.2 No. 96; MSHA flame-resistant reference |
5000 V Dimensional, Grounding & Ampacity Data (CPE vs. TPU)
Complete dual-unit nominal specifications for all 11 standard 5 kV Type SHD-GC conductor sizes (6 AWG to 500 kcmil), comparing standard mold-cured CPE against lightweight extra-tough TPU.
Table 1: Type SHD-GC 3/C 5000 V — Reinforced Mold-Cured CPE Jacket (6 AWG to 500 kcmil)
| Power Cores | Area (mm²) | Power Strands | Grounding 2 × AWG (Strands) | GC Pilot | Insul. / Jkt (mil) | Nominal OD (in / mm) | Approx. Weight (lb/kft / kg/km) | Ampacity 40°C (A) |
|---|---|---|---|---|---|---|---|---|
| 3 × 6 AWG | 13.30 | 133 | 2 × 10 (49) | 8 AWG | 110 / 185 | 1.56 / 39.6 | 1,560 / 2,322 | 93 |
| 3 × 4 AWG | 21.15 | 259 | 2 × 8 (133) | 8 AWG | 110 / 185 | 1.68 / 42.7 | 1,920 / 2,857 | 122 |
| 3 × 2 AWG | 33.62 | 259 | 2 × 6 (133) | 8 AWG | 110 / 205 | 1.87 / 47.5 | 2,500 / 3,720 | 159 |
| 3 × 1 AWG | 42.41 | 259 | 2 × 5 (133) | 8 AWG | 110 / 205 | 1.95 / 49.5 | 2,860 / 4,256 | 184 |
| 3 × 1/0 AWG | 53.49 | 266 | 2 × 4 (259) | 8 AWG | 110 / 220 | 2.08 / 52.8 | 3,390 / 5,045 | 211 |
| 3 × 2/0 AWG | 67.43 | 323 | 2 × 3 (259) | 8 AWG | 110 / 220 | 2.20 / 55.9 | 3,830 / 5,700 | 243 |
| 3 × 3/0 AWG | 85.01 | 418 | 2 × 2 (259) | 8 AWG | 110 / 235 | 2.36 / 59.9 | 4,418 / 6,575 | 279 |
| 3 × 4/0 AWG | 107.2 | 532 | 2 × 1 (259) | 8 AWG | 110 / 235 | 2.50 / 63.5 | 5,300 / 7,887 | 321 |
| 3 × 250 kcmil | 126.7 | 627 | 2 × 1/0 (266) | 8 AWG | 120 / 250 | 2.69 / 68.3 | 6,450 / 9,599 | 355 |
| 3 × 350 kcmil | 177.3 | 888 | 2 × 2/0 (323) | 8 AWG | 120 / 265 | 2.95 / 74.9 | 7,880 / 11,727 | 435 |
| 3 × 500 kcmil | 253.4 | 1221 | 2 × 4/0 (532) | 8 AWG | 120 / 280 | 3.31 / 84.1 | 10,440 / 15,536 | 536 |
Table 2: Type SHD-GC 3/C 5000 V — Extra-Tough TPU Jacket (6 AWG to 500 kcmil)
| Power Cores | Area (mm²) | Power Strands | Grounding 2 × AWG (Strands) | GC Pilot | Insul. / Jkt (mil) | Nominal OD (in / mm) | Approx. Weight (lb/kft / kg/km) | Ampacity 40°C (A) |
|---|---|---|---|---|---|---|---|---|
| 3 × 6 AWG | 13.30 | 133 | 2 × 10 (49) | 8 AWG | 110 / 185 | 1.56 / 39.6 | 1,342 / 1,997 | 93 |
| 3 × 4 AWG | 21.15 | 259 | 2 × 8 (133) | 8 AWG | 110 / 185 | 1.68 / 42.7 | 1,629 / 2,424 | 122 |
| 3 × 2 AWG | 33.62 | 259 | 2 × 6 (133) | 8 AWG | 110 / 205 | 1.87 / 47.5 | 2,228 / 3,316 | 159 |
| 3 × 1 AWG | 42.41 | 259 | 2 × 5 (133) | 8 AWG | 110 / 205 | 1.95 / 49.5 | 2,447 / 3,642 | 184 |
| 3 × 1/0 AWG | 53.49 | 266 | 2 × 4 (259) | 8 AWG | 110 / 220 | 2.08 / 52.8 | 2,760 / 4,107 | 211 |
| 3 × 2/0 AWG | 67.43 | 323 | 2 × 3 (259) | 8 AWG | 110 / 220 | 2.20 / 55.9 | 3,238 / 4,819 | 243 |
| 3 × 3/0 AWG | 85.01 | 418 | 2 × 2 (259) | 8 AWG | 110 / 235 | 2.36 / 59.9 | 3,792 / 5,643 | 279 |
| 3 × 4/0 AWG | 107.2 | 532 | 2 × 1 (259) | 8 AWG | 110 / 235 | 2.50 / 63.5 | 4,548 / 6,768 | 321 |
| 3 × 250 kcmil | 126.7 | 627 | 2 × 1/0 (266) | 8 AWG | 120 / 250 | 2.69 / 68.3 | 5,427 / 8,076 | 355 |
| 3 × 350 kcmil | 177.3 | 888 | 2 × 2/0 (323) | 8 AWG | 120 / 265 | 2.95 / 74.9 | 7,070 / 10,521 | 435 |
| 3 × 500 kcmil | 253.4 | 1221 | 2 × 4/0 (532) | 8 AWG | 120 / 280 | 3.31 / 84.1 | 9,407 / 13,999 | 536 |
Medium-Voltage Mining Trailing Cable Comparison
Compare Type SHD-GC 5kV against 2kV portable cables and 8kV pit shovel/dragline feeders.
| Mining Cable Model | Voltage Class, Ground / Shield Architecture & Primary Mining Duty |
|---|---|
| DLO 2kV Locomotive Power Lead | Single-core 2000 V flexible Class I tinned copper lead (14 AWG–1111.1 kcmil, UL RHH/RHW-2 & CSA RW90) for diesel-electric traction motors, VFD cabinets, haul trucks, and mine switchgear. |
| Type G-GC 2kV Round Portable | Unshielded 3-core 2000 V trailing cable with 2 grounding cores and 1 yellow PP ground-check core (8 AWG–500 kcmil) for blast-hole drills, continuous miners, shuttle cars, and dewatering pumps. |
| Type SHD-GC 2kV Shielded | Individually metallic-braid-shielded 3-core 2000 V trailing cable (CPE, extra-tough TPU, or night-luminous jacket) for high-fault underground continuous miners, roof bolters, and longwall shearers. |
| Type SHD-GC 5kV Shielded | Medium-voltage 5000 V trailing cable with extruded semi-conducting stress control, 110–120 mil EPR insulation, tinned copper braid shields, and CPE or TPU jacket for longwall miners and shovels. |
| Type SHD-GC 8kV Shovel & Dragline | Medium-voltage 8000 V trailing cable with 150 mil (3.81 mm) EPR dielectric, extruded semi-con shields, and heavy-duty CPE or TPU jacket for electric rope shovels, walking draglines, and dredges. |
| Type SHD-GC 15kV & 25kV Dragline | High-voltage 210 mil (15kV) and 260 mil (25kV) EPR shielded trailing cable with dual semi-con stress screens and CPE or high-visibility TPU jacket for ultra-class walking draglines and pit substations. |
Frequently Asked Questions (FAQ)
Answers to engineering questions regarding 4.16 kV longwall selection, center vs. interstitial GC, and coupler compatibility.
Is Type SHD-GC 5kV suitable for 4,160 V underground longwall shearer circuits?
Yes. Type SHD-GC 5000 V (110–120 mil EPR wall) is the primary North American trailing cable for 4.16 kV longwall shearers and continuous miners. If your monospiral shearer reel experiences severe dynamic S-bending, we also manufacture center-pilot Type SHD-CGC 5kV.
Do the CPE and TPU 5kV jackets use the same cable gland and coupler grommets?
Yes. Both jacket compounds are extruded to identical ICEA S-75-381 nominal wall thicknesses (185 to 280 mils) and overall diameters (39.6 mm to 84.1 mm), ensuring 100% interchangeability with standard 5 kV mine couplers.
What ground-check conductor size is supplied in 5kV Type SHD-GC?
Across all 5 kV sizes from 6 AWG through 500 kcmil, TEBAOFLEX supplies a heavy 8 AWG (133-strand) tinned copper ground-check conductor insulated with yellow polypropylene for high tensile break resistance.
Request a Type SHD-GC 5kV Trailing Cable Quote
Provide your 4.16 kV / 5 kV conductor gauge (6 AWG to 500 kcmil), CPE or TPU jacket preference, and required drum lengths for engineering review and quotation.
Explore All Mining & Tunneling Cables
