(N)TMCGCW11Y UL PUR Mining Cable

The (N)TMCGCW11Y UL is a screened single-core medium voltage cable engineered for high-flexibility applications in mining, crane reeling systems, and offshore power supply. Featuring a thermoplastic polyurethane (PUR) outer sheath, this cable delivers superior abrasion resistance, exceptional flexibility across extreme temperatures (-40°C to +125°C), and halogen-free safety. It is UL certified and designed in accordance with DIN VDE 0250-813, making it an ideal choice for applications where durability, flexibility, and safety are paramount.

Product Overview & Applications

The (N)TMCGCW11Y UL is specifically designed for short-run power connections in switchgear and transformer installations where tight bending radii are required, as well as for heavy-duty mobile applications involving frequent reeling and unreeling cycles. Key applications include:

  • Mining Equipment: Power supply for heavy-duty mining machinery in reeling and trailing applications

  • Crane Systems: High-flexibility power cables for port cranes, intermodal cranes, and container cranes

  • Shore-to-Ship (ONS) Power Supply: Offshore power connections for vessels at port via energy chains or reeling operations

  • Energy Chains & Cable Carriers: Power supply for large electrical drives and applications via cable carrier systems

  • Transformer Connections: Flexible connections in switchgear or transformer houses with limited installation space

Model Code Breakdown

Based on the VDE standard designation, the model code provides key construction information:

Code Meaning
(N) Compliant with German VDE standard (optional prefix)
T Trailing/Reeling cable – designed for mobile and reeling applications
M Mining cable – primary application sector
C Screened cable – with metallic screen
G Ground/earth conductor – integrated protective conductor
C Copper wire screen – metallic screening layer
W Weather/Oil resistant – suitable for outdoor and oil-exposed environments
11Y Thermoplastic Polyurethane (PUR) outer sheath – VDE Type 11Y designation
UL UL certification – approved for North American market

Core Structure & Technical Parameters

Structural Component Material/Specification Characteristics
Conductor Tinned copper, Class 5 flexible (IEC 60228) High flexibility, corrosion resistance
Field Control Inner and outer extruded semi-conductive rubber layers Uniform electric field distribution, prevents partial discharge
Insulation EPR (Ethylene Propylene Rubber), Type 3GI3 Excellent electrical and thermal stability, 90°C continuous operation
Screen Spirally applied tinned copper wires, ≥85% coverage Electromagnetic shielding and grounding continuity
Outer Sheath Thermoplastic Polyurethane (PUR) – VDE Type 11Y Superior abrasion, oil, notch, and weather resistance; halogen-free
Sheath Color Red (RAL 3000) Enhanced visibility in dark underground environments

Key Performance Specifications

Parameter Specification
Rated Voltage (U₀/U) 3.6/6kV, 6/10kV, 8.7/15kV, 12/20kV, 14/25kV, 18/30kV
Temperature Range (Mobile) -25°C to +80°C (max 90°C conductor)
Temperature Range (Fixed) -40°C to +80°C
Max. Short Circuit Temp. 200°C (conductor)
Minimum Bending Radius (Mobile) 8 × Outer Diameter (6D for specialized configurations)
Minimum Bending Radius (Fixed) 6 × Outer Diameter
Maximum Tensile Strength 15 N/mm²
Reeling Speed (Typical) Up to 240 m/min in cable carriers
Water Resistance AD8 rating – permanent submersion up to 10 bar pressure

Key Performance Advantages

Superior Abrasion & Notch Resistance
PUR/TPU sheath demonstrates approximately 70% lower abrasion loss compared to conventional elastomeric compounds, with tensile strength exceeding 40 N/mm² and elongation at break approaching 600%. This translates to significantly longer service life in abrasive mining and reeling applications.

Exceptional Flexibility
The (N)TMCGCW11Y offers tighter bending radii (6D-8D operational) compared to rubber-sheathed alternatives (8D-12D), allowing more compact reel drum designs and simplified installation in confined spaces.

Extended Temperature Performance
PUR/TPU sheath maintains reliability from -40°C to +125°C, providing an additional 35°C thermal margin compared to thermoset elastomer compounds, ensuring reliable performance in proximity to heat-generating equipment or in direct sunlight exposure.

Halogen-Free & Fire Safety
Zero halogen content (<0.5%) ensures minimal toxic gas and smoke emission during combustion, critical for underground mining applications and enclosed spaces.

High Reeling Speed Capability
Superior anti-kink properties and flexibility enable reeling speeds up to 240 m/min in specialized configurations, compared to 120 m/min for rubber-sheathed alternatives – essential for modern high-speed crane and mining operations.

UL Certification
Approved by UL (Underwriters Laboratories) for the North American market, ensuring compliance with international safety standards and facilitating global project procurement.

Applicable Standards

Standard Description
DIN VDE 0250-813 Flexible trailing cables for power installation – overall design standard
IEC 60228 Class 5 Conductor standard – flexible stranded copper
VDE 0482-332-1-2 / IEC 60332-1-2 Single vertical flame propagation test
DIN EN 61034 / IEC 61034 Smoke density measurement
DIN EN 50267 / IEC 60754 Halogen-free testing – low toxic gas emission
EN 60811-404 Oil resistance testing
UL Certification North American market approval

Available Voltage Ratings & Cross-Sections

The (N)TMCGCW11Y UL is available in the following representative configurations:

Voltage Rating (U₀/U) Conductor Sizes (mm²) Reference Part No.
3.6/6kV 1×35/16 054848
6/10kV UL 1×35/16, 1×95/16, 1×120/16, 1×150/25, 1×185/25, 1×240/25 053018, 054511, 054743, 054510, 054708, 054777
8.7/15kV UL 1×150/25, 1×240/25 054794, 054795
12/20kV UL 1×35/16, 1×150/25, 1×240/25 053019, 054778, 054779