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4 Core Mining Cable Rubber Sheathed Flexible Power Cable For Underground Coal Mining Equipment
4 Core Mining Cable
,70mm Mining Cable
,120mm flexible power cable
Mining Cable 4 Core Rubber Sheathed Flexible Power Cable for Underground Coal Mining Equipment
Mining Cable 4 Core Rubber Sheathed Flexible Power Cable is engineered for underground coal mining mobile equipment, compliant with MT818.5-2009 and IEC 60245 standards, featuring 4-core (3+1) balanced structure, Class 5 flexible copper conductors, premium rubber insulation and heavy-duty rubber sheath. It delivers exceptional flexibility, mechanical durability, flame retardancy and underground safety certification (MA), ideal for continuous miners, shearers, loaders and underground mobile machinery power connection.
Technical Specifications
| Parameter | Value |
|---|---|
| Rated Voltage | 0.38/0.66kV, 0.66/1.14kV |
| Conductor Size | 4×1.5mm², 4×2.5mm², 4×4mm², 4×6mm² |
| Conductor DC Resistance (20°C) | ≤13.3Ω/km (1.5mm²), ≤7.98Ω/km (2.5mm²) |
| Insulation Resistance | ≥100MΩ·km (20°C) |
| Operating Temperature | -30°C to +65°C (continuous) |
| Minimum Bending Radius | Static: 6×D; Dynamic: 8×D (D=outer diameter) |
| Flame Retardancy | Class B (IEC 60332-3) |
| Certification | MA, ISO9001, RoHS |
- Conductor: 4-core (3 phase + 1 ground), Class 5 stranded bare copper, high flexibility, low resistance, tight stranding for minimal deformation under frequent bending.
- Insulation: EPR/EPDM or nitrile-chloroprene composite rubber, 25kV/mm dielectric strength, heat-resistant (-25°C to +65°C), ozone and moisture resistant.
- Sheath: Heavy-duty black rubber (CPE/chloroprene), reinforced with flame retardant additives and nano-zinc oxide, abrasion, oil, tear and flame resistant, passes GB/T 18380.36 Class B flame test.
- Structure: Symmetric 4-core stranding, compact round geometry for uniform stress distribution during dragging, bending and twisting.
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