NTSCGECEWOU 3.6/6kV, 6/10kV, 8.7/15kV and 12/20kV Cable
The NTSCGECEWOU 3.6/6kV, 6/10kV, 8.7/15kV and 12/20kV Cable is a flexible, heavy-duty medium-voltage trailing/reeling cable designed for demanding mining and tunnelling operations. It features class 5 finely stranded tinned copper phase conductors for superior flexibility and corrosion resistance, semi-conductive conductor and insulation screens for field control, EPR (ethylene propylene rubber) insulation providing high dielectric strength and 90°C continuous operation, individual copper wire screens serving as earth conductors, control conductors, a monitoring conductor (ÜL), and a robust rubber outer sheath resistant to oil, flame, abrasion, tearing, and mechanical stress. Compliant with DIN VDE 0250, it supports high tensile loads, fast reeling speeds, tight bending radii, and effective EMC shielding across voltage ranges. The NTSCGECEWOU ensures safe, reliable MV power supply to mobile equipment such as shearers, tunnel boring machines, and conveyors in harsh underground and opencast environments, minimising downtime and enhancing operational efficiency.
- Voltage Rating Uo/U 3.6/6kV | 6/10kV | 8.7/15kV | 12/20kV
-
Test Voltage
3.6/6kV: 11kV
6/10kV: 17kV
8.7/15kV: 24kV
12/20kV: 29kV - Temperature Rating Fixed: -40°C to +80°C
- Minimum Bending Radius Fixed: 6 x overall diameter
- Maximum Short Circuit Temperature +250°C
Construction
Technical Specifications
Quality Control
Application
Construction
NTSCGECEWOU 3.6/6kV, 6/10kV, 8.7/15kV and 12/20kV Cable Constrution
Phase Conductor
Class 5 tinned copper conductor
Insulation
Rubber compound Type 3GI3
Protective Earth Conductor
Individual copper wire braid
Central Filler
Rubber compound on a polyester textile support
Inner Sheath
Rubber compound Type GM1b
Outer Sheath
Rubber compound Type 5GM3
Sheath Colour
Red
Manufacturer Standard
VDE 0250 Part 813, VDE 0295, EN 60228
Flame Retardant
IEC/EN 60332-1-2
Semi-Conductive Layers
Semi-conductive tape over the conductor and inner and outer
Semi-conductive rubber layer on the insulation
Semi-conductive rubber layer on the insulation
Application
NTSCGECEWOU 3.6/6kV, 6/10kV, 8.7/15kV, and 12/20kV cables are flexible medium voltage cables for use in fixed power supply systems around mines and material handling equipment in accordance with DIN VDE 0250. The cables are suitable for indoor and outdoor use and have good abrasion resistance and mechanical strength.
Technical Specifications
NTSCGECEWOU 3.6/6kV, 6/10kV, 8.7/15kV and 12/20kV Cable
NTSCGECEWOU 3.6/6kV Cable
NTSCGECEWOU 6/10kV Cable
NTSCGECEWOU 8.7/15kV Cable
NTSCGECEWOU 12/20kV Cable
|
No. Of Cores |
Nominal Cross Sectional Area mm² |
CONDUCTOR DIAMETER |
MINIMUM OVERALL DIAMETER |
MAXIMUM OVERALL DIAMETER |
NOMINAL WEIGHT |
|
|
Phase Conductor |
Earth Conductor |
mm | mm | mm | kg/km | |
| 3+3 | 25 | 25/3E | 6.8 | 43.9 | 45.6 | 2870 |
| 3+3 | 35 | 25/3E | 7.8 | 45.4 | 47.1 | 3230 |
| 3+3 | 50 | 25/3E | 9.4 | 48.5 | 50.3 | 3860 |
| 3+3 | 70 | 35/3E | 11.2 | 54.1 | 55.9 | 5010 |
| 3+3 | 95 | 50/3E | 12.7 | 58.4 | 60.2 | 6150 |
| 3+3 | 120 | 70/3E | 14.4 | 62.5 | 64.8 | 7450 |
| 3+3 | 150 | 70/3E | 16.3 | 68.9 | 71.3 | 8980 |
| 3+3 | 185 | 90/3E | 17.6 | 71.9 | 74.3 | 10290 |
|
No. Of Cores |
Nominal Cross Sectional Area mm² |
CONDUCTOR DIAMETER |
MINIMUM OVERALL DIAMETER |
MAXIMUM OVERALL DIAMETER |
NOMINAL WEIGHT |
|
|
Phase Conductor |
Earth Conductor |
mm | mm | mm | kg/km | |
| 3+3 | 25 | 25/3E | 6.8 | 43.9 | 46.2 | 2910 |
| 3+3 | 35 | 25/3E | 7.8 | 45.4 | 47.7 | 3270 |
| 3+3 | 50 | 25/3E | 9.4 | 48.5 | 50.9 | 3900 |
| 3+3 | 70 | 35/3E | 11.2 | 54.1 | 56.5 | 5050 |
| 3+3 | 95 | 50/3E | 12.7 | 58.4 | 60.8 | 6190 |
| 3+3 | 120 | 70/3E | 14.4 | 62.5 | 65.5 | 7490 |
| 3+3 | 150 | 70/3E | 16.3 | 68.9 | 72 | 9020 |
| 3+3 | 185 | 90/3E | 17.6 | 71.9 | 75 | 10330 |
|
No. Of Cores |
Nominal Cross Sectional Area mm² |
CONDUCTOR DIAMETER |
MINIMUM OVERALL DIAMETER |
MAXIMUM OVERALL DIAMETER |
NOMINAL WEIGHT |
|
|
Phase Conductor |
Earth Conductor |
mm | mm | mm | kg/km | |
| 3+3 | 25 | 25/3E | 6.8 | 47.3 | 49 | 3200 |
| 3+3 | 35 | 25/3E | 7.8 | 48.8 | 50.6 | 3570 |
| 3+3 | 50 | 25/3E | 9.4 | 53.7 | 55.5 | 4440 |
| 3+3 | 70 | 35/3E | 11.2 | 57.5 | 59.3 | 5410 |
| 3+3 | 95 | 50/3E | 12.7 | 60.8 | 63.1 | 6480 |
| 3+3 | 120 | 70/3E | 14.4 | 66.8 | 69.1 | 8060 |
| 3+3 | 150 | 70/3E | 16.3 | 71.5 | 73.9 | 9370 |
|
No. Of Cores |
Nominal Cross Sectional Area mm² |
CONDUCTOR DIAMETER |
MINIMUM OVERALL DIAMETER |
MAXIMUM OVERALL DIAMETER |
NOMINAL WEIGHT |
|
|
Phase Conductor |
Earth Conductor |
mm | mm | mm | kg/km | |
| 3+3 | 25 | 25/3E | 6.8 | 49.8 | 51.6 | 3450 |
| 3+3 | 35 | 25/3E | 7.8 | 51.3 | 53.1 | 3810 |
| 3+3 | 50 | 25/3E | 9.4 | 56.3 | 58.1 | 4740 |
| 3+3 | 70 | 35/3E | 11.2 | 60.1 | 61.9 | 5730 |
| 3+3 | 95 | 50/3E | 12.7 | 63.3 | 65.6 | 6810 |
| 3+3 | 120 | 70/3E | 14.4 | 69.3 | 71.7 | 8420 |
Quality Control
NTSCGECEWOU 3.6/6kV, 6/10kV, 8.7/15kV and 12/20kV Cable
Raw Material Test
Raw Material Test for NTSCGECEWOU 3.6/6kV, 6/10kV, 8.7/15kV, and 12/20kV Cable ensures premium MV-grade materials for mining durability. The rigorous process includes: Supplier Certification Review: Verify class 5 tinned copper meets DIN EN 60228/IEC 60228 for purity (>99.9% Cu), stranding, and tin coating to enhance corrosion resistance. Conductor Analysis: Test tinned copper for tensile strength (>200 MPa), elongation (>20%), conductivity (≥97% IACS), and tin layer uniformity to guarantee performance under mechanical stress. Semi-Conductive & Insulation Testing: Semi-conductive layers checked for resistivity, adhesion, and compatibility; EPR insulation evaluated for tensile (>6.5 MPa), elongation (>300%), dielectric strength (>20 kV/mm), and thermal aging per IEC 60502 across voltage ratings.
Process inspection
Process Inspection during manufacturing of NTSCGECEWOU 3.6/6kV, 6/10kV, 8.7/15kV, and 12/20kV Cable maintains precision for MV integrity. Steps include: Conductor Stranding: Monitor fine class 5 stranding of phase/control/monitoring conductors for uniform lay length, compactness, and flexibility using online gauges. Layer Extrusion: Apply semi-conductive screens and EPR insulation at controlled thicknesses; inline scanners, spark testers, and eccentricity monitors detect voids or defects across voltage configurations. Screening & Assembly: Braid copper wires for earth/screening with precise coverage/tension; integrate control and monitoring conductors under controlled conditions. Outer Sheath Extrusion: Apply robust rubber sheath; real-time checks on thickness, surface finish, and adhesion to ensure sealing and durability.
Finished Product
Finished Product Test confirms the NTSCGECEWOU 3.6/6kV, 6/10kV, 8.7/15kV, and 12/20kV Cable meets MV standards before shipment. The procedure includes: Visual & Dimensional Inspection: Examine full length for defects, uniformity, markings, and measure outer diameter/weight per meter across all voltage variants. Electrical Tests: Perform DC resistance, insulation resistance (>1000 MΩ·km), high-voltage withstand (11kV for 3.6/6kV, 17kV for 6/10kV, 24kV for 8.7/15kV, 29kV for 12/20kV/5 min), partial discharge, and screen/monitoring continuity per VDE/IEC. Mechanical Evaluation: Test bending radius (6–8× OD), tensile strength, abrasion, tear, and torsional resistance to simulate mining conditions. Sheath & Insulation Performance: Verify oil immersion, flame retardancy (IEC 60332), thermal aging, and moisture resistance for long-term durability.
Application
The NTSCGECEWOU 3.6/6kV, 6/10kV, 8.7/15kV, and 12/20kV Cable is ideal for underground/opencast mining trailing/reeling systems, tunnel boring machines, coal cutters, conveyor power feeds, mobile equipment connections, and switchgear links requiring flexible, screened MV cable with monitoring in high-mechanical-stress environments.
Technical Advantages
● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions
Product Packaging
Wires and Cables packaging (1)
Wires and Cables packaging (2)
Wires and Cables packaging (3)
Wires and Cables packaging (4)
Wires and Cables packaging (5)
Wires and Cables packaging (6)
Wires and Cables packaging (7)
Wires and Cables packaging (8)
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What are the advantages of power cables and overhead lines?(1) Reliable operation, because it is installed in a hidden place such as underground, it is less damaged by external forces, has less chance of failure, and the power supply is safe, and it will not cause harm to people; (2) The maintenance workload is small and frequent inspections are not required; (3) No need to erect towers; (4) Help improve power factor.
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Which aspects should be considered when choosing the cross section of a power cable?(1) The long-term allowable working current of the cable; (2) Thermal stability once short circuited; (3) The voltage drop on the line cannot exceed the allowable working range.
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What are the measures for cable fire prevention?(1) Use flame-retardant cables; (2) Use fireproof cable tray; (3) Use fireproof paint; (4) Fire partition walls and fire baffles are installed at cable tunnels, mezzanine exits, etc.; (5) Overhead cables should avoid oil pipelines and explosion-proof doors, otherwise local pipes or heat insulation and fire prevention measures should be taken.
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What should be paid attention to during the transportation and handling of cables?(1) During transportation, loading and unloading, cables and cable reels should not be damaged. It is strictly forbidden to push the cable reels directly from the vehicle. Generally, cables should not be transported and stored flat. (2) Before transporting or rolling the cable reel, ensure that the cable reel is firm, the cable is wound tightly, the oil pipe between the oil-filled cable and the pressure oil tank should be fixed without damage, the pressure oil tank should be firm, and the pressure indication should meet the requirements.
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What inspections should be carried out for the acceptance of cable lines?(1) The cable specifications should meet the regulations, the arrangement should be neat, no damage, and the signs should be complete, correct and clear; (2) The fixed bending radius of the cable, the related distance and the wiring of the metal sheath of the single-core power cable should meet the requirements; (3) The cable terminal and the middle head should not leak oil, and the installation should be firm. The oil pressure of the oil-filled cable and the meter setting should meet the requirements; (4) Good grounding; (5) The color of the cable terminal is correct, and the metal parts such as the bracket are completely painted; (6) There should be no debris in the cable trench, tunnel, and bridge, and the cover should be complete.
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