
Product Overview
N3GHSSYCY Shielded Rubber-Insulated PVC Sheath Mining Cable is engineered for high-voltage applications in hazardous mining and tunneling environments. Featuring comprehensive shielding, monitoring conductors, and robust construction, this cable provides reliable energy supply to medium-voltage equipment while enabling continuous insulation monitoring for enhanced safety in underground operations.
Key Features & Benefits
-
Comprehensive Monitoring System: Phase-concentric earth conductor and monitoring shield enable continuous insulation fault detection
-
High Voltage Capability: Available in 3.6/6kV, 6/10kV, 8.7/15kV, and 12/20kV ratings
-
Enhanced Mobility: Designed for progressive unwinding as excavation work advances
-
Robust Mechanical Protection: Galvanized steel wire armour with multiple PVC sheaths
-
Superior Electrical Performance: Low capacitance design suitable for expanded 5kV networks
-
Environmental Adaptability: Suitable for both indoor and outdoor applications in harsh conditions
Applications
Critical high-voltage applications in mining and tunneling:
-
Mobile Operating Equipment: Energy supply to MV equipment in tunneling and underground mining
-
High-Voltage Transformers: Stationary operation in mining and tunneling applications
-
Progressive Excavation: Equipment shifted forward in stages as excavation work progresses
-
Hazardous Environments: Mines and underground excavations with dangerous conditions
-
10kV and 5kV Networks: Suitable for expanded networks due to low capacitance design
-
Container Installation: Mobile laying in containers with progressive unwinding capability
Construction

Advanced Multi-Layer Construction:
-
Conductors: Flexible stranded copper conductor, class 5 (DIN VDE 0295)
-
Insulation: EPR compound type 3GI3
-
Electrical Field Control: Inner and outer semiconductive layer of semiconductive rubber
-
Pilot Cores: Stranded copper conductor with EPR insulation
-
Earth Conductor: Spiral of copper wires over the outer semiconductive layer
-
Inner Sheath: PVC compound type YM5
-
Monitoring Conductor: Conductive tape serving and overall concentric Cu wire spinning
-
Intermediate Sheath: PVC compound type YM5
-
Armour: Braid of galvanized steel wires
-
Outer Sheath: PVC compound type YM5
Characteristics
Electrical & Mechanical Performance:
-
Voltage Rating (Uo/U): 3.6/6kV | 6/10kV | 8.7/15kV | 12/20kV
-
Test Voltage:
-
3.6/6kV: 11kV
-
6/10kV: 17kV
-
-
Maximum Short Circuit Temperature: +250°C
-
Maximum Working Temperature: +90°C (conductor)
-
Ambient Temperature:
-
Fixed: -40°C to +80°C
-
Flexed: +5°C to +80°C
-
-
Minimum Bending Radius:
-
Fixed: 6 × overall diameter
-
Flexed: 10 × overall diameter
-
-
Maximum Tensile Load: 15N/mm²
Standards Compliance
Applied Standards:
-
VDE 0250 Part 605
Specifications
3.6/6kV Specifications:
| Number of Cores × Nominal Cross Section | Minimum Overall Diameter | Maximum Overall Diameter | Nominal Weight |
|---|---|---|---|
| No. × mm² | mm | mm | kg/km |
| 3×25+3×16/3E+3×2.5ST+UEL | 49.0 | 53.0 | 4190 |
| 3×35+3×16/3E+3×2.5ST+UEL | 52.0 | 56.0 | 4800 |
| 3×50+3×25/3E+3×2.5ST+UEL | 55.0 | 59.0 | 5600 |
| 3×70+3×35/3E+3×2.5ST+UEL | 59.0 | 63.0 | 6650 |
| 3×95+3×50/3E+3×2.5ST+UEL | 63.0 | 67.0 | 7940 |
6/10kV Specifications:
| Number of Cores × Nominal Cross Section | Minimum Overall Diameter | Maximum Overall Diameter | Nominal Weight |
|---|---|---|---|
| No. × mm² | mm | mm | kg/km |
| 3×25+3×16/3E+3×2.5ST+UEL | 55.0 | 58.0 | 5300 |
| 3×35+3×16/3E+3×2.5ST+UEL | 58.0 | 61.0 | 5910 |
| 3×50+3×25/3E+3×2.5ST+UEL | 61.0 | 65.0 | 6790 |
| 3×70+3×35/3E+3×2.5ST+UEL | 65.0 | 69.0 | 7860 |
| 3×95+3×50/3E+3×2.5ST+UEL | 68.0 | 73.0 | 9180 |
8.7/15kV Specifications:
| Number of Cores × Nominal Cross Section | Minimum Overall Diameter | Maximum Overall Diameter | Nominal Weight |
|---|---|---|---|
| No. × mm² | mm | mm | kg/km |
| 3×25+3×16/3E+3×2.5ST+UEL | 58.0 | 62.0 | 6810 |
| 3×35+3×16/3E+3×2.5ST+UEL | 61.0 | 65.0 | 7850 |
| 3×50+3×25/3E+3×2.5ST+UEL | 64.7 | 68.7 | 9130 |
| 3×70+3×35/3E+3×2.5ST+UEL | 67.9 | 71.9 | 10750 |
| 3×95+3×50/3E+3×2.5ST+UEL | 72.4 | 76.4 | 12290 |
12/20kV Specifications:
| Number of Cores × Nominal Cross Section | Minimum Overall Diameter | Maximum Overall Diameter | Nominal Weight |
|---|---|---|---|
| No. × mm² | mm | mm | kg/km |
| 3×25+3×16/3E+3×2.5ST+UEL | 62.3 | 66.3 | 8790 |
| 3×35+3×16/3E+3×2.5ST+UEL | 65.3 | 69.3 | 9930 |
| 3×50+3×25/3E+3×2.5ST+UEL | 69.0 | 73.0 | 11360 |
| 3×70+3×35/3E+3×2.5ST+UEL | 72.2 | 76.2 | 13100 |
| 3×95+3×50/3E+3×2.5ST+UEL | 76.8 | 80.8 | 14750 |
Key Advantages
-
Advanced Safety Monitoring: Integrated monitoring system detects insulation faults and external damage
-
High Voltage Versatility: Multiple voltage ratings from 3.6/6kV to 12/20kV for various applications
-
Progressive Deployment: Mobile design allows unwinding as excavation operations progress
-
Robust Protection: Multiple protective layers including steel armour and PVC sheaths
-
Technical Compliance: Meets VDE 0250 Part 605 standards for mining applications
-
Reliable Performance: Maintains electrical integrity in harsh underground environments
