F-(N)TSCGEWÖU | (N)TSCGEWOU LWL TBM Reeling Mine Cable

(N)TSCGEWOU TBM Reeling Mine Cable Technical

Temperature range

Fixed installation: – 40°C + 80°C
Flexible installation: – 25°C + 60°C
Test voltage: 11000 V to 43000 V, acc. to DIN VDE 0250, part 813

Max. permessible temperature

on conductor: + 90°C Max. permessible temperature
On short-circuit: + 250°C
Max. permessible operating voltage in A.C.systems: UoU 4.2/7.2 kV to 20.8/36 kV
Max. permessible operating voltage in D.C. systems: UoU 5.4/10.8 kV to 27/54 kV
Tensile load: up to 20 N/mm2 Torsional stresses: ± 100°/m
Max. speed: 100 m/min Oil resistant: acc. to DIN VDE 0473 part 811-2-1 part 10
Fire resistant: acc. to DIN VDE 0482 EN IEC 60332-1-2
Weather resistance: outdoor use, resistant to moisture ozone and UV rays

(N)TSCGEWOU TBM Reeling Mine Cable International Standard

construction:  DIN VDE 0250-813
General Requirements : DIN VDE 0250-1
Guide Use:  DIN VDE 0298-3
Electrical Tests:  DIN VDE 0472-501, 503, 508
Non-Electrical Tests:  DIN VDE 0472-401. 402,602,303, 615
Under Fire Condition Tests:  DIN VDE 0472-803, 804
Flame Retardant:  VDE 0482-332-1-2,DIN EN 60332-1-2,IEC 60332-1
Oil Resistant:  HD/EN/IEC 60811-2-1.,DIN VDE0473-811-2-1

Difference Between F-(N)TSCGEWÖU and (N)TSCGEWÖU

Although both cables are manufactured according to the same VDE mining cable standard and share similar electrical construction, they are designed for different operating conditions.

Feature	F-(N)TSCGEWÖU	(N)TSCGEWÖU
Primary Purpose	Fixed installation	Trailing & reeling applications
Installation	Stationary or semi-fixed	Continuously moving equipment
Mechanical Stress	Medium	Very high
Torsional Stress	Low	High
Cable Reeling	Not recommended for continuous reeling	Specifically designed for continuous reeling
Typical Equipment	Conveyor systems, substations, pump stations	Draglines, electric shovels, bucket-wheel excavators, continuous miners
Cable Movement	Occasional	Continuous
Service Environment	Fixed mining infrastructure	Mobile mining machinery

Which Types of Cable Should You Choose?

• Choose F-(N)TSCGEWÖU if your application requires a flexible medium-voltage cable installed in a fixed position with only occasional movement.
• Choose (N)TSCGEWÖU if your equipment is continuously moving and the cable must withstand repeated bending, torsion, and high-speed reeling throughout its service life.
• Selecting the appropriate cable not only improves operational reliability but also reduces maintenance costs and extends cable service life.

F-(N)TSCGEWÖU TBM Reeling Cable Technical Information 

What’s F-(N)TSCGEWÖU?

F-(N)TSCGEWÖU is a medium-voltage flexible mining power cable for fixed installation, developed in accordance with DIN VDE 0250-813 for demanding mining, tunnelling, and bulk material handling applications.

Unlike the standard (N)TSCGEWÖU trailing cable, which is designed for continuous cable reeling and mobile equipment, the F-(N)TSCGEWÖU version is optimized for fixed or semi-fixed power distribution where high electrical reliability is required but continuous trailing movement is not.

The prefix “F” stands for Fixed Installation, indicating that the cable is intended for stationary installation alongside conveyor systems, transfer stations, shiftable mining equipment, substations, cable booms, and submersible pump installations. Although the cable remains highly flexible, its primary purpose is to provide a durable medium-voltage power connection rather than repeated trailing or high-speed reeling.

F-(N)TSCGEWÖU maintains the same premium electrical construction found in the standard cable, including:

• Class 5 flexible tinned copper conductors
• Semi-conductive conductor and insulation screens
• High-performance EPR insulation
• Split earth conductors
• Heavy-duty PCP rubber outer sheath
• Excellent resistance to moisture, ozone, oil, UV radiation, and mechanical impact

Precautions for using (N)TSCGEWöU Reeling Cable in TBM Equipment

(N) TSCGEWöU is a commonly used medium voltage drum-type reeling cable for TBMs/tunnel boring machines. The key is to strictly control bending/torsion/tension, ensure proper protection and winding management, standardize joint connections and inspections, and adapt to the underground environment. Otherwise, core breakage, sheath cracking, shielding failure, and short circuits are likely to occur.

I. Core Parameter Limits (Must be observed)

1. Rated Voltage: 3.6/6kV, 6/10kV, 8.7/15kV, 12/20kV
2. Long-term Temperature: 90℃; Minimum -25℃ for mobile installations, -40℃ for fixed installations.
3. Minimum Bending Radius: Fixed 6D, Mobile 10D (D = Cable Outer Diameter)
4. Maximum Torsion: ±25°/m, excessive torsion is strictly prohibited.
5. Maximum Tensile Force: ≤20–25kN (according to cross-section and manufacturer’s specifications)

   

II. Installation and Laying Precautions

1. Route and Bending

• o Avoid sharp angles and sharp bends throughout the installation; dynamic sections should have a radius ≥10D; use curved cable guides/pulleys at bends.
• o Allow 0.5–1m slack every 10m to prevent stretching; dragging, rolling, and pulling are strictly prohibited.

2. Fixing and Protection

• o Secure with dedicated clamps every 2–3m, adding wear-resistant rubber/nylon sliders at metal contact points.
• o Single-layer arrangement within the drum/drag chain, no cross-stacking; drum diameter ≥12D.
• o Wear prevention: Install protective grooves/guide frames inside the tunnel to avoid friction with tunnel segments and steel structures.

3. Joints and Terminals

• o High-voltage joints use cold-shrink/heat-shrink terminals, waterproof rating ≥IP68; shielding layer continuously grounded 360°.
• o Joints should be kept away from bending/stretching areas; joints must not pass over the drum.