(N)TMCGEWOU - 12/20kV, 14/25kV and 18/30kV Cable
The (N)TMCGEWOU - 12/20kV, 14/25kV and 18/30kV Cable is a robust, flexible single-core medium-voltage power cable built for extreme industrial and mining demands. It includes class 5 finely stranded tinned copper conductors for flexibility and corrosion resistance, semi-conductive conductor and insulation screens for field control, high-grade EPR (ethylene propylene rubber) insulation offering superior dielectric strength and 90°C continuous operation, tinned copper wire braid screen for EMI shielding and grounding, and a tough halogen-free rubber outer sheath (type 5GM5) resistant to oil, flame, abrasion, moisture, and mechanical damage. Compliant with DIN VDE 0250 Part 813 and IEC equivalents, it handles high test voltages (29kV for 12/20kV, 36kV for 14/25kV, 43kV for 18/30kV) and supports short-length or mobile connections with excellent bending and tensile performance. The (N)TMCGEWOU delivers safe, reliable high-voltage power in harsh environments.
- Voltage Rating Uo/U 12/20V | 14/25kV | 18/30kV
-
Test Voltage
12/20kV: 29kV
14/25kV: 36kV
18/30kV: 43kV - Maximum Short Circuit Temperature +250°C
- Minimum Bending Radius Fixed: 6 x overall diameter
- Temperature Rating Fixed: -40°C to +80°C
Construction
Technical Specifications
Quality Control
Application
Construction
(N)TMCGEWOU - 12/20kV, 14/25kV and 18/30kV Cable Constrution
Phase Conductor
Class 5 flexible stranded tinned copper
Insulation
Rubber compound Type 3GI3
Earth Conductor
Copper wire screen
Outer Sheath
Rubber compound Type 5GM5
Sheath Colour
Red
Manufacturer Standard
VDE 0250 Part 812, 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
(N)TMCGEWOU cable is used for short-length medium voltage connections of transformers, switchgears, and mobile mining equipment. It is ideal for both indoor and outdoor installations, including alongside conveyor systems in harsh industrial environments.
Technical Specifications
(N)TMCGEWOU - 12/20kV, 14/25kV and 18/30kV Cable
(N)TMCGEWOU Cable 12/20kV
(N)TMCGEWOU Cable 14/25kV
(N)TMCGEWOU Cable 18/30kV
| 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 | |
| 1 | 25 | 16E | 6.8 | 22.4 | 24.3 | 870 |
| 1 | 35 | 16E | 7.8 | 23.1 | 25 | 970 |
| 1 | 50 | 16E | 9.4 | 25.4 | 27.3 | 1120 |
| 1 | 70 | 16E | 11.2 | 27.2 | 29.1 | 1440 |
| 1 | 95 | 16E | 12.7 | 28.8 | 30.8 | 1690 |
| 1 | 120 | 16E | 14.4 | 31.6 | 33.6 | 2060 |
| 1 | 150 | 25E | 16.3 | 34 | 36 | 2510 |
| 1 | 185 | 25E | 17.6 | 35 | 37 | 2810 |
| 1 | 240 | 25E | 20.6 | 39 | 41 | 3540 |
| 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 | |
| 1 | 25 | 16E | 6.8 | 24.6 | 26.5 | 980 |
| 1 | 35 | 16E | 7.8 | 26.1 | 28 | 1130 |
| 1 | 50 | 16E | 9.4 | 27.6 | 29.5 | 1320 |
| 1 | 70 | 16E | 11.2 | 29.4 | 31.4 | 1570 |
| 1 | 95 | 16E | 12.7 | 32 | 34 | 1900 |
| 1 | 120 | 16E | 14.4 | 33.8 | 35.8 | 2210 |
| 1 | 150 | 25E | 16.3 | 36.3 | 38.3 | 2680 |
| 1 | 185 | 25E | 17.6 | 38.2 | 40.2 | 3060 |
| 1 | 240 | 25E | 20.6 | 41.1 | 44 | 3730 |
| 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 | |
| 1 | 25 | 16E | 6.8 | 27.2 | 29.1 | 1120 |
| 1 | 35 | 16E | 7.8 | 28.1 | 30 | 1240 |
| 1 | 50 | 16E | 9.4 | 29.6 | 31.6 | 1440 |
| 1 | 70 | 16E | 11.2 | 32.4 | 34.4 | 1770 |
| 1 | 95 | 16E | 12.7 | 34.1 | 36.1 | 2040 |
| 1 | 120 | 16E | 14.4 | 35.9 | 37.9 | 2360 |
| 1 | 150 | 25E | 16.3 | 39.3 | 41.3 | 2920 |
Quality Control
(N)TMCGEWOU - 12/20kV, 14/25kV and 18/30kV Cable
Raw Material Test
Raw Material Test for (N)TMCGEWOU - 12/20kV, 14/25kV and 18/30kV Cable verifies premium MV-grade inputs. The detailed process includes:Supplier Certification Review: Confirm class 5 tinned copper meets DIN EN 60228/IEC 60228 for purity (>99.9% Cu), stranding, and tin coating; EPR insulation and rubber sheath compounds certified to VDE 0250-813.Conductor Analysis: Test tinned copper for tensile strength (>200 MPa), elongation (>20%), conductivity (≥97% IACS), and uniform tin coating.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 stability per IEC 60502.
Process inspection
Process Inspection during manufacturing of (N)TMCGEWOU - 12/20kV, 14/25kV and 18/30kV Cable maintains precision for higher voltage integrity. Steps include: Conductor Stranding: Monitor fine class 5 stranding for uniform lay, compactness, and flexibility. Layer Extrusion: Apply semi-conductive conductor screen, EPR insulation, and insulation screen at precise thicknesses; inline scanners, spark testers, and eccentricity monitors detect voids or defects. Screening Application: Braid tinned copper wires with controlled coverage and tension for effective shielding. Outer Sheath Extrusion: Apply durable rubber sheath; real-time monitoring of thickness, surface quality, and adhesion. Continuous Checks: Conductor resistance, insulation integrity, screen continuity, and overall diameter tracked throughout.
Finished Product
Finished Product Test confirms the (N)TMCGEWOU - 12/20kV, 14/25kV and 18/30kV Cable meets stringent MV standards before release. The procedure includes: Visual & Dimensional Inspection: Examine full length for surface defects, uniformity, markings, and measure outer diameter/weight per meter.Electrical Tests: DC conductor resistance, insulation resistance (>1000 MΩ·km), high-voltage AC withstand (29kV for 12/20kV, 36kV for 14/25kV, 43kV for 18/30kV/5 min), partial discharge, and screen continuity per VDE/IEC. Mechanical Evaluation: Bending radius (typically 6–8× OD), tensile strength, abrasion, and tear resistance tested.Sheath & Insulation Performance: Oil immersion, flame retardancy (IEC 60332), thermal aging, and moisture resistance verified. Thermal & Short-Circuit Validation: Confirm 90°C continuous rating and short-circuit withstand capability.
Application
The (N)TMCGEWOU - 12/20kV, 14/25kV and 18/30kV Cable suits underground/open-pit mining, tunneling equipment, switchgear-to-transformer links, mobile substations, conveyor systems, and heavy machinery power feeds requiring flexible, screened, flame/oil-resistant MV cable under high mechanical and environmental stress.
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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