MSHA Approved 15kV/25kV G-GC Mining Cable | 3/C 4/0 AWG + 8 AWG Ground Check | EPDM/CPE Heavy-Duty Trailing Cable

15kV/25kV G-GC Heavy-Duty Mining Cable

Engineered for Extreme Mining Operations

This high-voltage G-GC cable delivers reliable power in demanding mining environments:

  • High-Voltage Equipment: Continuous miners, shuttle cars, longwall systems

  • Surface & Underground Mining: 15kV/25kV power distribution systems

  • Safety-Critical Circuits: Ground-check monitoring for hazard prevention

  • Mobile Equipment: Draglines, excavators, and portable substations


Certifications & Compliance

  • MSHA Accepted: P-136-135, LR65300

  • UL Listed: Type RHH/RHW-2 (UL 44/UL 1072)

  • c(UL) Certified: CSA C22.2 No. 96

  • Standards Compliance:
    ✓ ICEA S-75-381
    ✓ NEMA WC-58
    ✓ ASTM B-174 Conductors
    ✓ FT-5 Flame Test Certified
    ✓ RoHS Compliant


Robust Construction

  1. Phase Conductors:

    • 3 × 4/0 AWG

    • Annealed stranded bare copper (ASTM B-174)

    • Rope-lay stranding for maximum flexibility

  2. Ground Check Conductor:

    • 1 × 8 AWG

    • Dedicated safety monitoring circuit

  3. Insulation:

    • Premium oil-resistant EPDM rubber

    • Phase identification: Color-coded per industry standards

  4. Assembly:

    • Cable core bound with fillers

    • Concentric, circular design

  5. Jacket:

    • Heavy-duty Chlorinated Polyethylene (CPE)

    • Black, sunlight-resistant compound

    • Flame-retardant (FT-5 rated)


Key Performance Specifications

Parameter Specification
Voltage Rating 15kV / 25kV
Temperature Range -40°C to 90°C (Dry) / -40°C to 75°C (Wet)
Continuous Ampacity 260A (90°C conductor)
Bending Radius 6× cable diameter
Environmental Resistance Oil, chemicals, ozone, moisture, abrasion

Technical Data: 3/C 4/0 AWG + 8 AWG GC

Component Specification
Phase Conductors 3 × 4/0 AWG stranded copper
Ground Check Conductor 1 × 8 AWG stranded copper
Insulation Material EPDM Rubber
Jacket Material CPE
Approx. Weight 8,200 kg/km
Flame Rating FT-5 Certified

Engineering Selection Guide

  • Voltage Systems: 15kV/25kV three-phase AC with ground check

  • Current Capacity: 260A continuous load

  • Safety Features: Ground-fault monitoring compatible

  • Environmental Suitability:
    ✓ Underground mines (MSHA compliant)
    ✓ Oil-exposed industrial sites
    ✓ Extreme temperature environments
    ✓ High-moisture areas


Installation & Maintenance

  • Minimum Bending Radius: 6× overall diameter

  • Reeling Compatibility: Designed for continuous trailing

  • Identification: Indent-printed for circuit tracing

  • Service Life: Optimized for 10+ years in heavy mining service