TRM-J 0.69/1.15kV mining rubber cable by TEBAOFLEX with black rubber sheath for underground mining
TRM-J 0.69/1.15kV Mining Rubber Cable | VDE 0250 Standard
  1. TRM-J 0.69/1.15kV mining rubber cable by TEBAOFLEX with black rubber sheath for underground mining
  2. TRM-J 0.69/1.15kV Mining Rubber Cable | VDE 0250 Standard

TRM-J 0.69/1.15kV Mining Rubber Cable | VDE 0250 Standard

TRM-J is a high-flexibility mining rubber cable specifically designed for extreme heavy-duty mobile applications, with a rated voltage of 0.69/1.15kV. It features a tinned flexible copper conductor and EPR (Ethylene Propylene Rubber) insulation, complemented by a concentric braided screen. The cable offers excellent flexibility, as well as outstanding resistance to oil, ozone, and flame. It is widely used in mines, shafts, ports, steel mills, and oil drilling platforms where cables are subject to frequent movement and high mechanical stress.

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Product Overview

The TEBAOFLEX TRM-J 0.69/1.15kV mining rubber cable is a heavy-duty, flexible multi-conductor trailing cable designed for extreme mechanical stress in underground mining, tunneling, quarry, steel mill, and harbor applications. Manufactured to VDE 0250 Part 812, it combines high electrical performance with exceptional abrasion, oil, and weather resistance.

Construction

Layer Material Description
Conductor Tinned copper, Class 5 (IEC 60228) Flexible stranded, oxidation resistant
Core Insulation EPR 3GI3 (DIN VDE 0207-20) Black, Blue, Brown + G/Y (4-core)
Inner Sheath EPR type EI 4 Natural color, waterproof buffer
Concentric Screen Tinned copper wire braid ≥90% coverage, 0.30mm wire, with PET tapes under/over
Outer Sheath 5GM3 (DIN VDE 0207-21) High-visibility Yellow, thermosetting

6-layer architecture with polyester separation tapes ensures dimensional stability under continuous flexing and reeling.

Technical Data

Parameter Value
Rated Voltage (Uo/U) 0.69 / 1.15 kV
Max Conductor Temp +90°C (mobile), +250°C (short circuit)
Ambient Temp (fixed) -40°C to +90°C
Ambient Temp (mobile) -25°C to +90°C
Min Bending Radius 6× OD (flexing), 4× OD (fixed)
Flame Retardant IEC 60332-1-2 / DIN EN 60332-1-2
Oil & Chemical Resistance IEC 60811-404
Ozone / UV / Weather Excellent — suitable for direct outdoor exposure

Dimensions & Ratings (4-Core Example)

Core x mm² Stranding Approx. OD (mm) Current in Air 30°C (A) Weight (kg/km)
4×2.5 50×0.25 18.5 30 480
4×4 56×0.30 20.0 40 600
4×6 84×0.30 22.5 52 800
4×10 80×0.40 26.0 72 1,150
4×16 128×0.40 29.5 96 1,600
4×25 200×0.40 34.0 127 2,350
4×35 280×0.40 37.5 158 3,000
4×50 400×0.40 42.0 196 3,950
4×70 560×0.40 47.5 242 5,100
4×95 684×0.40 55.5 301 6,322
4×120 864×0.40 61.0 346 7,800
4×150 1080×0.40 67.0 385 9,500
4×185 1332×0.40 73.5 440 11,500
4×240 1728×0.40 82.0 510 14,800

De-rating factor applies when reeled — consult datasheet for multi-layer coiling capacity.

Standards & Certifications

  • VDE 0250 Part 812 — design and testing
  • IEC 60228 — Class 5 flexible conductor
  • IEC 60332-1-2 — flame retardant
  • IEC 60811-404 — oil resistance
  • DIN VDE 0207-20 / -21 — insulation and sheath compounds
  • RoHS compliant
  • ISO 9001:2015 — factory quality management

Key Features

  • High-visibility Yellow 5GM3 sheath — prevents vehicle run-over accidents
  • Tinned copper Class 5 conductor — superior flex life and corrosion resistance
  • ≥90% concentric screen coverage — effective EMI protection
  • UV / ozone / oil / chemical resistant — all-weather outdoor durability
  • Suitable for continuous reeling, bending, and dragging over rough terrain

Applications

  • Underground & open-pit mining trailing cables
  • Continuous miner, shearer, and conveyor power supply
  • Shaft sinking and tunneling equipment
  • Port crane and ship loader reeling systems
  • Steel mill mobile machinery
  • Quarry stone crushers and screening plants

Why Choose TEBAOFLEX TRM-J?

TEBAOFLEX Advantage Benefit
Factory-direct manufacturing Lower cost, faster lead time
In-house lab testing Every drum certified
Custom lengths & cross-sections Tailored to your reeling drum
VDE / IEC / ASTM compliance Global project acceptance

TRM-J vs TRMC-J — Side-by-Side Comparison

Parameter TRM-J TRMC-J
Standard VDE 0250 Part 812 Mining Safety Mark (MA)
Voltage Rating 0.69/1.15 kV (LV) Medium voltage capable
Construction Layers 6-layer 7-layer
Screening Single overall tinned copper braid (≥90%) Double screen: individual core screens (Cu/Nylon) + overall braid
Conductor Class 5 tinned copper Very finely stranded flexible copper (higher flex life)
Core Insulation EPR 3GI3 EPR 3G13
Outer Sheath 5GM3 synthetic thermosetting CR (Polychloroprene) — higher tear & oil resistance
Temp Range (Mobile) -25°C to +90°C -35°C to +60°C
Temp Range (Fixed) -40°C to +90°C -40°C to +80°C
OD (4×95mm²) 55.5 mm 60.0 mm
Weight (4×95mm²) 6,322 kg/km 7,156 kg/km
Primary Application General mining trailing, reeling, light/medium duty Extreme torsional stress, heavy continuous mining (drill rigs, stackers)
Target Voltage Range Low voltage preferred Low to medium voltage

Key Takeaway: TRM-J is a cost-effective LV solution with wider operating temperature range; TRMC-J uses double-screen and CR sheath for extreme torsional environments where mechanical abuse and EMI are primary concerns.

Ordering Information

To request a quotation or technical datasheet, please contact:

  • Email: factory@tebaoflexcablegroup.com

Please specify: quantity, core count × cross-section, required drum length, and any special certification requirements (VDE / IEC / BS / ASTM).

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