TRM-J 0.69/1.15kV Highly Flexible Mining Rubber Cable – VDE 0250 Compliant

Mining Cables
Description

Product Overview

The TRM-J Highly Flexible Multi-conductor Rubber Cable is specifically engineered for applications requiring exceptional mechanical strength and flexibility under very heavy operational stresses. It is ideally suited for the most demanding environments including mines, shaft sinking operations, harbors, steel mills, quarries, and oil rigs.

Design Standard: In line with VDE 0250 Part 812

Key Characteristics

  • Excellent Flexibility: Engineered for continuous flexing and movement in mobile applications

  • Environmental Resistance: Excellent resistance to ozone, heat, and oil

  • Flame Retardant: Self-extinguishing properties for enhanced safety

  • Wide Temperature Range:

    • Mobile application: -25°C to +80°C

    • Fixed installation: -40°C to +80°C

Specifications

Parameter Specification
Voltage Rating 0.69/1.15kV
Conductor Flexible tinned copper, Class 5 to IEC 60228
Insulation Ethylene propylene rubber IEP equivalent 3GI3 acc. DIN VDE 0207 part 20
Inner Sheath Ethylene propylene rubber type EI 4 acc. DIN VDE 0207 part 20 (Natural color)
Concentric Screen Tinned copper wires (0.30 mm diameter) braided, min. 90% coverage
Separator Polyester tape under and over the braid
Outer Sheath Synthetic thermosetting compound type 5GM3 acc. DIN VDE 0207 part 21 (Yellow)
Circuit Identification 4-core: black, blue, brown, earth: green-yellow
Multi-cores: black with numbering, earth: green-yellow

Construction Details

  1. Conductor: Flexible tinned copper conductor, Class 5 stranding per IEC 60228, ensuring high flexibility and corrosion resistance.

  2. Insulation: Ethylene propylene rubber (IEP) type 3GI3 according to DIN VDE 0207 part 20, providing excellent electrical properties and thermal stability.

  3. Core Identification:

    • 4-core configurations: Black, Blue, Brown, and Green-Yellow (earth)

    • Multi-core configurations: Black cores with white numbering, plus Green-Yellow earth conductor

  4. Core Assembly: Power cores are laid up around a rubber filler (if needed) and wrapped with PET tape to maintain circular geometry and mechanical stability.

  5. Inner Sheath: Ethylene propylene rubber type EI 4 according to DIN VDE 0207 part 20, applied in natural color as a bedding layer.

  6. Concentric Screen (All Sizes): Braided tinned copper wires (0.30 mm diameter) with minimum 90% coverage, providing effective electromagnetic shielding and earth continuity.

  7. Separator: Polyester tape applied both under and over the braided screen for mechanical protection and separation.

  8. Outer Sheath: Synthetic thermosetting compound type 5GM3 according to DIN VDE 0207 part 21, in distinctive yellow color for high visibility and safety.

Standards Compliance

Component Applicable Standard
Overall Design In line with VDE 0250 Part 812
Conductor IEC 60228 (Class 5)
Insulation Material DIN VDE 0207 Part 20 (Type 3GI3)
Inner Sheath Material DIN VDE 0207 Part 20 (Type EI 4)
Outer Sheath Material DIN VDE 0207 Part 21 (Type 5GM3)

Typical Applications

  • Mining: Heavy-duty power supply for mobile mining equipment

  • Shaft Sinking: Flexible power cables for vertical shaft operations

  • Harbors: Ship-to-shore power connections and dock equipment

  • Steel Mills: Power supply for cranes, ladles, and heavy machinery

  • Quarries: Mobile equipment and extraction machinery

  • Oil Rigs: Offshore drilling platforms and support vessels

  • Very Heavy Stress Environments: Any application requiring exceptional mechanical strength and continuous flexing

Temperature Ratings

Condition Temperature Range
Mobile Application -25°C to +80°C
Fixed Installation -40°C to +80°C