NTSCGECWOEU Coal Cutter Cable VDE 0250 Mining Cable
The NTSCGECWOEU Coal Cutter Cable is a medium-voltage flexible mining trailing cable designed for coal cutter machines (shearers), longwall mining systems, and underground mobile mining equipment.
- StandardDIN VDE 0250 Part 813
- Voltage classMedium-voltage
- ConductorTinned copper, Class 5 (IEC 60228)
- InsulationEPR rubber (Type 3GI3)
- Heat resistanceUp to 90°C
- Semiconductive layersInner and outer semiconductive layers
- Inner sheathRubber compound (GM1b type)
- Outer sheathHeavy-duty rubber compound (5GM5)
The NTSCGECWOEU Coal Cutter Cable is a medium-voltage flexible mining trailing cable designed for coal cutter machines (shearers), longwall mining systems, and underground mobile mining equipment.
It is manufactured according to DIN VDE 0250 Part 813, a German standard specifically developed for high-mechanical-stress mining cables used in:
- Underground coal mining
- Continuous mining systems
- Mobile cutting machines
- High-load cable chain systems
- Continuous bending and twisting
- High tensile load
- Crushing from mining machinery
- Abrasion from rock and coal dust
- Moisture and underground humidity
- Oil and chemical exposure
Construction
Material and build-up
The NTSCGECWOEU cable uses a multi-layer rubber-insulated mining cable structure designed for extreme underground conditions.
- 1. Conductor System
- Flexible stranded tinned copper conductor
- Class 5 extra-flexible design (IEC 60228)
- High fatigue resistance under continuous movement
- 2. Semiconductive Layer System
- Inner semiconductive layer over conductor
- Outer semiconductive screen over insulation
- 3. Insulation Layer
- High-performance EPR rubber insulation (Type 3GI3)
- High dielectric strength
- Heat resistant up to 90°C
- 4. Earth & Monitoring System
Depending on design version:
- Split earth conductors in outer interstices
- Concentric earth system
Optional:
- Pilot cores for control systems
- Monitoring conductors for safety circuits
- 5. Mechanical Reinforcement Layer
- High-strength reinforcing tape
- Optional anti-torsion textile braid
- Heavy-duty bedding compounds
- 6. Inner Sheath
- Rubber compound (GM1b type)
- Oil resistant
- Moisture resistant
- Shock absorption layer
- 7. Outer Sheath
- Heavy-duty rubber compound (5GM5)
- Flame retardant
- Abrasion resistant
- Oil, ozone, chemical resistant
Request this cable.
Send the core configuration, length and application details.
Quality Assurance
Testing at every stage in our own workshop and laboratory, from incoming copper to the packed drum.
Raw Material Inspection
Every batch of copper rod, rubber compound and reinforcing material is checked before it reaches the line.
- Copper: conductor resistance, elongation and surface condition on incoming rod and drawn wire
- EPR, CPE, PUR and silicone compounds: hardness, tensile strength, elongation and ageing samples from each mix
- Suppliers and batch numbers are recorded so every drum can be traced back to its materials
Manufacturing Process Control
Stranding, insulation extrusion, core assembly and sheathing run under recorded process parameters.
- Class 5/6 stranding with lay length and tension monitored for trailing and reeling flexibility
- Continuous-vulcanisation extrusion with wall thickness and spark tests logged on every length
- Operators sign off each stage before the cable moves to the next machine
Electrical Testing
Finished lengths go through the routine tests required by the referenced VDE, ICEA, IEC or NEK standard.
- Conductor resistance and insulation resistance on every length
- Voltage withstand (3.5 kV and higher) and partial-discharge measurement in the shielded HV laboratory
- Screen and pilot-core continuity checks for mining and reeling constructions
Mechanical and Ageing Tests
Samples from production are tested for the duty a mining, crane or submersible cable will actually see.
- Tensile strength and elongation of insulation and sheath before and after ageing
- Hot-set, ozone, oil-immersion and low-temperature bending tests
- Constant-temperature water bath for insulation resistance of submersible constructions
Flame Test and Final Inspection
Before packing, the cable is checked against the order and the flame-performance requirement of its standard.
- Single-cable vertical flame test to IEC 60332-1-2 where specified
- Metre marking, printing, drum length and appearance inspection
- Test report and packing list issued with every shipment
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