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Product

power connection cable series(N)TSCGEHXOEU Wind MV/HV±100°/m Nacelle Loop Torsion12/20 kV · 18/30 kV · 38/66 kV

(N)TSCGEHXOEU Three-Core Torsion-Resistant Wind-Turbine MV/HVDIN VDE 0250-813 6/10–20/35 kV (38/66 kV) ±100°/m torsion-resistant wind MV/HV cable

(N)TSCGEHXOEU Three-Core Torsion-Resistant Wind-Turbine MV/HV Cable (6/10 kV, 12/20 kV, 18/30 kV, 20/35 kV & 38/66 kV; 3×25 mm² to 3×185 mm²) engineered per DIN VDE 0250-813 and IEC 61400 for onshore and offshore wind-turbine.

±100°/m @ -40 °C Loop Torsion
Halogen-Free LSZH ('HX')
Offshore Salt-Mist & Oil Proof
DIN VDE 0250-813 / IEC 61400
Order designation
(N)TSCGEHXOEU 3×70+3×35/3E 18/30kV
Conductors
3 × 70 mm² + 3 × 11.7 mm² E
Outer Ø ≈
65.8 mm
Weight ≈
5,690 kg/km
Ampacity (air 30°C)
265 A
All sizes (6)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Standards
VDE 0250-813 / I
Wind-turbine MV/HV loop cable
Voltage classes
6/10 to 38/66 kV
12/20, 18/30, 20/35 & 38/66 kV
Cross-sections
3 × 25 to 185 mm
+ 3 split earth cores ('E')
Torsion rating
±100° / m
≥ 10,000 yaw cycles (-40 °C)
Insulation
3GI3 EPR (+90 °C
Triple-extruded semicon ('G')
Outer sheath
HX-OEU Halogen-F
IEC 60332-3-24 & oil resistant

Typical values for this cable type, based on DIN VDE 0250-813 / IEC 60502-2 / IEC 61400 — confirmed in the datasheet and quotation for your order.

Application fit

Is (N)TSCGEHXOEU right for your machine?

In modern 5–18 MW onshore and offshore wind turbines with nacelle-mounted step-up transformers, the 20 kV, 33/35 kV or 66 kV power cable hangs in a free catenary loop from the rotating nacelle into the upper tower—twisting up to ±3.5 full turns as the nacelle yaws into the wind.

Free-hanging vertical run

Suitable

Torsion-optimized rope-lay Class 5/6 tinned copper + sliding layers + anti-torsion reinforcement withstand ±100°/m twist over a.

TBM gantry & advancing tunnel reel

Suitable

Halogen-free ('HX') flame-retardant elastomer sheath passes IEC 60332-3-24 vertical tray fire, IEC 60754-2 zero-halogen and IEC.

Immersion & wet locations

Suitable

Resists offshore marine salt fog, hydraulic pitch/yaw oil mist, condensation and -40 °C arctic nacelle startup temperatures.

Fixed installation

Suitable

Self-supporting vertical drop construction clamps directly to tower ladder saddles below the torsion loop all the way to the base.

Typical machinesOffshore Wind Turbines (8–18 MW · 33 kV & 66 kV Array)Onshore Wind Turbine Nacelle-to-Tower MV Drip LoopsFloating Offshore Wind Dynamic Tower RisersTidal Stream & Wave Energy Nacelle Yaw LoopsVertical Shaft & Swivel-Boom Medium-Voltage Drops

Construction

Layer by layer

(N)TSCGEHXOEU Three-Core Wind-Turbine MV/HV Cable showing three torsion-optimized Class 5/6 tinned copper phase conductors, triple-extruded inner semiconducting layer, 3GI3 EPR insulation and outer semiconducting screen ('G'), three split tinned copper earth conductors ('E') in the outer interstices, open-weave anti-torsion braid, and Black/Red halogen-free oil-resistant ('HXOEU') elastomer outer sheath.

12345
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
13 × Torsion-optimized Class 5 / Class 6 tinned copper conductorsElectrolytic tin-coated extra-flexible annealed copper wires with calibrated pitch length for bidirectional twisting (3 × 25 mm² to 3 × 185 mm²)Prevents strand bird-caging or core corkscrewing during ±3.5-turn nacelle yaw
2Triple-extruded inner & outer semiconducting elastomer screens ('G')Vulcanized inner conductor screen and torsion-stable outer semiconducting elastomer co-extruded with the EPR dielectricMaintains partial discharge ≤ 5 pC even after 10,000 × ±100°/m twist cycles
33GI3 Ethylene Propylene Rubber (EPR) MV/HV dielectric90 °C ozone- and corona-resistant thermoset EPR compound Type 3GI3 (6/10 kV up to 20/35 kV & 38/66 kV)Remains supple at -40 °C without cracking under torsional shear
43 × Split tinned copper interstitial earth cores ('E')Three semiconducting-sheathed tinned copper earth conductors laid symmetrically in the outer interstices (e.g., 3×25/25E or 3×95/50E)'E' = Einzelader-Erdleiter: tolerates bidirectional torsion far better than rigid copper tape screens
5HX-OEU Halogen-Free, Oil- & Flame-Resistant double sheathInner elastomer bedding + open-weave synthetic anti-torsion braid + Black or Red cross-linked halogen-free ('HX') oil-resistant ('OEU') outer sheathPasses IEC 60332-3-24 vertical tray fire, IEC 60754-2 and offshore salt-mist tests

(N)TSCGEHXOEU 12/20 kV (3×35+3×16/3E to 3×150+3×25E)

20/22 kV three-core torsion-resistant halogen-free wind-turbine nacelle loop cable for 3–6 MW onshore turbines

(N)TSCGEHXOEU 18/30 kV & 20/35 kV (3×50+3×25/3E to 3×185+3×35E)

33/35 kV (Umax 36–42 kV) three-core torsion-resistant MV loop cable for 6–12 MW onshore & offshore wind turbines

(N)TSCGEHXOEU 38/66 kV (3×70 to 3×185 mm² ·Umax 72.5 kV)

66 kV high-voltage torsion-resistant nacelle-to-tower loop cable for next-generation 12–18 MW offshore wind turbines

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on DIN VDE 0250-813 / IEC 60502-2 / IEC 61400. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage tiers (Uo/U)
6/10 kV · 12/20 kV · 18/30 kV · 20/35 kV · 38/66 kV (Umax up to 72.5 kV)
Routine AC test & PD
29 kV (12/20) · 43 kV (18/30) · 50 kV (20/35) · 95 kV (38/66) + PD ≤ 5 pC
Max. DC resistance @ 20 °C
0.393 Ω/km (50) · 0.277 Ω/km (70) · 0.206 Ω/km (95) · 0.132 Ω/km (150)
Free-air ampacity (30 °C)
215 A (3×50) · 265 A (3×70) · 320 A (3×95) · 415 A (3×150)

Thermal

Continuous conductor temp.
+90 °C continuous operation
Short-circuit temperature
+250 °C (up to 5 s)
Operating ambient range
-40 °C to +80 °C (qualified for -40 °C cold torsion)

Mechanical

Torsion capability
±100° / m (up to ±150° / m) over free loop for ≥ 10,000 cycles
Min. bend radius
6 × OD (fixed tower clamping) · 10 × OD (dynamic nacelle loop)
Max. vertical tensile load
20 N / mm² of total copper cross-section (self-supporting drop)

Resistance

Tower fire & smoke safety
IEC 60332-3-24 Cat C bunched flame · IEC 60754-1/2 LSZH · IEC 61034-2
Hydraulic oil & grease
EN 60811-404 resistant to turbine gearbox & yaw hydraulic oils ('OEU')
Offshore salt fog & ozone
ISO 9227 salt-spray, UV and high-voltage ozone resistant

Reference standards

Design standards
DIN VDE 0250-813 · IEC 60502-2 · IEC 61400 wind turbine series
Halogen-free standards
IEC 60754-1 / 60754-2 & IEC 61034-2
RoHS, REACH & CE
2011/65/EU RoHS 2, REACH & CE compliant

Identification

VDE code breakdown
(N)TSCGE=MV/HV torsion 3C+3E · HX=Halogen-free · OEU=Oil/Flame
Outer sheath colour
Black or Red
Customs tariff (HS)
8544.6010

Sizes

6 standard (N)TSCGEHXOEU 18/30 kV & 20/35 kV Wind-Turbine MV/HV configurations

Phase & split-earth cross-section, outer diameter, weight, vertical tensile load and ampacity.

18/30 kV & 20/35 kV dimensions & ratings
VDE designation3 Phase + 3 Split EarthOuter Ø ≈
mm		Weight ≈
kg/km		Max. pull
kN		Air 30°C
A		Enquiry
18/30 kV (Umax 36 kV) 3-Core Wind Loop
(N)TSCGEHXOEU 3×35+3×25/3E 18/30kV3 × 35 mm² + 3 × 8.3 mm² E58.54,1502.1175
(N)TSCGEHXOEU 3×50+3×25/3E 18/30kV3 × 50 mm² + 3 × 8.3 mm² E61.84,7803.0215
(N)TSCGEHXOEU 3×70+3×35/3E 18/30kV3 × 70 mm² + 3 × 11.7 mm² E65.85,6904.2265
(N)TSCGEHXOEU 3×95+3×50/3E 18/30kV3 × 95 mm² + 3 × 16.7 mm² E70.26,7805.7320
20/35 kV (Umax 42 kV) 3-Core Offshore Wind
(N)TSCGEHXOEU 3×120+3×70/3E 20/35kV3 × 120 mm² + 3 × 23.3 mm² E76.58,2407.2370
(N)TSCGEHXOEU 3×150+3×70/3E 20/35kV3 × 150 mm² + 3 × 23.3 mm² E80.89,4809.0415
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Also available in 6/10 kV, 12/20 kV and 38/66 kV (offshore 66 kV array voltage) configurations.

Quality & approvals

Testing & inspection

Routine tests on every production length, sample and type tests per batch — documented on an EN 10204 3.1 inspection certificate.

  1. ConductorClass 5 stranding
  2. Spark test100 % in-line
  3. Lay-upCores, earth, fillers
  4. SheathingInner, braid / screen, outer
  5. Electrical testsAC voltage, resistance
  6. DimensionsOD, wall thickness
  7. Inspection documents & dispatchDrum & dispatch
Testing & inspectionTest value / referenceFrequency
Routine tests
100 % High-voltage AC dielectric (29–95 kV) & PD test (≤ 5 pC @ 1.73 Uo)Zero breakdown for 5 min and PD ≤ 5 pC on all 3 phase coresEvery manufactured drum
Sample tests
10,000-cycle ±100°/m nacelle loop torsion test (-40 °C to +90 °C) + PD checkZero strand breakage, zero jacket cracking and PD remains ≤ 5 pC after torsionWind turbine qualification
IEC 60332-3-24 vertical tray fire, IEC 60754-2 LSZH & IEC 61034-2 smokePasses bunched flame, zero halogen (pH ≥ 4.3) and light transmittance ≥ 60 %Type qualification

Inspection certificate

Issued with every drum, listing the routine test results for that length.

Product approvals

DIN VDE 0250-813 CompliantIEC 60332-3-24 & IEC 60754-2Offshore Wind Qualified

Company certificates

ISO 9001ISO 14001ISO 45001VDE marks approvalUL / cULCE · LVD / EMC

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX (N)TSCGEHXOEU 3x70+3x35/3E 18/30kV WIND TORSION LSZH VDE 0250-813 CE
Delivery form
Fumigated wooden drums or steel export reels
Standard lengths
500 m · 1000 m (or custom cut lengths)
MOQ
100 m (standard) · 500 m (custom)
Lead time
2–4 weeks ex-works
Incoterms
EXW, FOB, CIF, DAP

Technical documents

Downloads

PDF(N)TSCGEHXOEU Three-Core Torsion-Resistant Wind-Turbine MV/HV – technical datasheet6 sizes · construction, technical data, approvalsXLSX(N)TSCGEHXOEU spec data (Excel)All 6 sizes with dimensions and data, for your BOM or quotation
Revision
2026-10-20
Updated
2026-10-20

FAQ

Questions engineers ask first

Not covered here? Send your drawing — an engineer replies within 2 business hours.

Why do wind turbines with nacelle-mounted transformers need (N)TSCGEHXOEU instead of standard MV reeling cable (N)TSCGEWÖU?
Standard (N)TSCGEWÖU is optimized for planar bending over crane sheaves and uses a chlorinated polychloroprene ('WÖU') rubber jacket. Inside an enclosed 100–150 m wind turbine tower, fire safety regulations forbid halogenated polychloroprene jackets and require a halogen-free low-smoke ('HX-OEU') compound passing IEC 60332-3-24 and IEC 60754-2. Furthermore, the wind loop cable hangs vertically and twists bidirectionally (±100°/m down to -40 °C) rather than spooling onto a drum.
How does the '3E' split interstitial earth design survive ±100°/m torsion without damaging the MV stress screen?
If a conventional helically lapped copper tape screen were twisted ±100°/m over 10,000 yaw cycles, the copper tape would cinch down in one direction and bird-cage in the other, cutting into the semiconducting layer and triggering partial discharge failure. By using semiconducting elastomer field-control layers ('G') paired with three flexible rope-lay tinned copper earth cores ('3E') nestled in the outer interstices, the entire 3-core assembly twists elastically without screen buckling.
Where is the step-up transformer located when (N)TSCGEHXOEU is used?
When the step-up transformer (stepping 690 V or 3.3 kV generator output up to 20 kV, 33/35 kV or 66 kV) is located up inside the rotating nacelle to reduce current and I²R losses down the tower, a single 3-core (N)TSCGEHXOEU cable carries the full 6–18 MW turbine output across the yaw drip loop down to the tower base switchgear.
What if the step-up transformer is located at the bottom of the tower instead of the nacelle?
When the transformer is at the tower base, the nacelle-to-tower loop carries high-current low/medium voltage (0.6/1 kV or 1.8/3 kV) over multiple parallel single-core torsion-resistant cables—specify our (N)TMCHXOEU Single-Core LSZH Wind-Turbine Cable.

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(N)TSCGEHXOEU Three-Core Torsion-Resistant Wind-Turbine MV/HV

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