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Product

halogen-free wind turbine torsion & tower cable GB/T 29631 / NB/T 310341.8/3 kV (0.6/1 kV) (-40 to +105 °C)LSZH Thermoset Elastomer Outer Sheat

FDEH 1.8/3 kV (0.6/1 kV) GB/T 29631 & NB/T 31034 HEPR / LSZH Elastomer Wind Torsion CableGB/T 29631 / NB/T 31034 — 1.8/3 kV (0.6/1 kV) — -40 to +105 °C Wind Turbine Cable

FDEH 1.8/3 kV (0.6/1 kV) GB/T 29631 & NB/T 31034 HEPR / LSZH Elastomer Wind Torsion Cable (GB/T 29631 / NB/T 31034) engineered for 1.8/3 kV (0.6/1 kV) wind turbine service across -40 to +105 °C (min. bend radius 6 × OD).

Anti-torsion braid

Flame-retardant

Oil-resistant

Approved

Configuration

Order designation: FDEH 1.8 1×95 / 4G25 Cu
Outer Ø ≈: 21.6 mm
Net weight ≈: 1,080 kg/km
Max. pulling ≈: 14.2 kN
Core / stranding: IEC 60228 Class 5 Flexible Cu/SnCu

All sizes (3)

Request a quote Datasheet WhatsApp info@tebaoflex.com

Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum

Rated voltage: 1.8/3 kV (0.6/1
Operating temp.: −40…+105 °C
Min. bend radius: 6 × OD
Core / conductor: GB/T 3956 Class
Outer protection: LSZH Thermoset E
Standard: GB/T 29631 / NB/

Typical values for this cable type, based on GB/T 29631 & NB/T 31034 FDEH (±1080°/10m) LSZH Wind Torsion Cable Standard — confirmed in the datasheet and quotation for your order.

Application fit

Is FDEH 1.8/3 kV right for your machine?

Free-hanging vertical run

Suitable

Cross-linked EPR/HEPR insulation and 5GM5 / XL-EVA halogen-free jacket withstand ±100°/m to ±180°/m yaw drip-loop torsion at −40 °C.

Fixed installation

Suitable

IEC 60332-3 flame-retardant low-smoke zero-halogen (LSZH) outer sheath routes safely through vertical wind tower ladders and cleats.

Offshore platform & shipboard deck trays

Suitable

Oil-, ozone-, UV- and salt-mist-resistant thermoset EVA/elastomer sheath endures both onshore and offshore wind nacelle environments.

Motor stator, traction & converter leads

Suitable

Finely stranded IEC 60228 Class 5 copper or AA8000 Al-alloy conductors terminate cleanly into generator, converter and transformer lugs.

Motorised monospiral reel

Not suitable

Wind turbine drip-loop torsion and fixed tower cables are not designed for high-speed horizontal crane reeling drums.

Use Spreader Reel Cable

Typical machinesRenewable Energy & EV ChargingOnshore & Offshore Wind Turbine Nacelle Drip LoopsWind Turbine Generator-to-Converter Main Power DropsHalogen-Free Wind Tower Vertical Power DistributionCold-Climate (−40 °C) Renewable Energy Installations

Construction

Layer by layer

Shown: FDEH 1.8/3 kV (GB/T 29631 & NB/T 31034 FDEH (±1080°/10m) LSZH Wind Torsion Cable Standard) featuring gb/t 3956 class 5 flexible copper (1.5-400 mm²), 90 °c / 105 °c high-strength epr/hepr (code e) and lszh thermoset elastomer outer sheath (code h) (3-layer construction).

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	GB/T 3956 Class 5 Flexible Copper (1.5-4	Finely stranded plain or tinned copper conductor
2	90 °C / 105 °C High-Strength EPR/HEPR (C	Cross-linked ethylene-propylene rubber dielectric
3	LSZH Thermoset Elastomer Outer Sheath (C	Low-smoke zero-halogen XL-EVA/EVM jacket passing ±1080°/10m torsion

FDEH 1.8/3 kV — Standard Wind Turbine Execution

Built to GB/T 29631 & NB/T 31034 FDEH (±1080°/10m) LSZH Wind Torsion Cable Standard with gb/t 3956 class 5 flexible copper (1.5-400 mm²) and lszh thermoset elastomer outer sheath (code h)

FDEH 1.8/3 kV — Pre-Cut Tower / Drip-Loop Kit

Available on bulk export reels or pre-cut to turbine tower section and nacelle drip-loop lengths

FDEH 1.8/3 kV — Cold Torsion & Routine Certified

Supplied with EN 10204 3.1 routine dielectric, conductor DC resistance & cold-torsion qualification report

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on GB/T 29631 & NB/T 31034 FDEH (±1080°/10m) LSZH Wind Torsion Cable Standard. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage / operating system: 1.8/3 kV (0.6/1 kV) (GB/T 29631 & NB/T 31034 FDEH (±1080°/10m) LSZH Wind Torsion Cable Standard)
Core / conductor construction: GB/T 3956 Class 5 Flexible Copper (1.5-400 mm²) — Finely stranded plain or tinned copper conductor
Primary dielectric / insulation: 90 °C / 105 °C High-Strength EPR/HEPR (Code E) — Cross-linked ethylene-propylene rubber dielectric

Thermal

Continuous operating temperature: −40…+105 °C (wind turbine nacelle, hub & tower duty)
Low-temperature torsion & cold bend: Verified cold-flex and torsion endurance across −40…+105 °C per GB/T 29631 & NB/T 31034 FDEH (±1080°/10m) LSZH Wind Torsion Cable Standard
Storage & transport temperature: −40…+80 °C on export wooden/steel cable drum

Mechanical

Outer jacket / sheath protection: LSZH Thermoset Elastomer Outer Sheath (Code H) — Low-smoke zero-halogen XL-EVA/EVM jacket passing ±1080°/10m torsion
Minimum bending radius: 6 × OD
Intermediate screen / separator / core layer: 90 °C / 105 °C High-Strength EPR/HEPR (Code E) — Cross-linked ethylene-propylene rubber dielectric

Resistance

Oil, grease, ozone & UV resistance: Resistant to wind turbine gearbox oil, hydraulic fluid, ozone and UV weathering per GB/T 29631 & NB/T 31034 FDEH (±1080°/10m) LSZH Wind Torsion Cable Standard
Flame retardancy & smoke/halogen emission: Flame-retardant and environmental performance verified per GB/T 29631 & NB/T 31034 FDEH (±1080°/10m) LSZH Wind Torsion Cable Standard
RoHS & REACH compliance: RoHS 2 (2011/65/EU + 2015/863) & REACH SVHC compliant

Reference standards

Governing standard: GB/T 29631 & NB/T 31034 FDEH (±1080°/10m) LSZH Wind Torsion Cable Standard
Conductor & flame/test standards: IEC 60228 / IEC 60332-1-2 & -3 / UL 2277 WTTC / EN 10204
Quality management & inspection: ISO 9001:2015 & EN 10204 3.1 factory routine inspection

Identification

Model designation: FDEH 1.8/3 kV
Sheath colour & metre marking: Continuous metre-marked black outer finish (LSZH Thermoset E)
Customs tariff (HS): 8544.49 / 8544.60

Sizes

3 standard FDEH 1.8/3 kV wind turbine configurations

Manufactured to GB/T 29631 & NB/T 31034 FDEH (±1080°/10m) LSZH Wind Torsion Cable Standard for wind turbine yaw drip-loop, pitch control, tower power and converter applications.

Dimensions, tensile load & weights
Order designation	Configuration	Core / stranding	Outer Ø ≈ mm	Net weight ≈ kg/km	Max. pulling kN ≈	Min. bend R mm
FDEH 1.8/3 kV Construction Schedule (−40…+105 °C)
FDEH 1.8 1×95 / 4G25 Cu	1 × 95 mm² (or 4G25 mm² / 3/0 AWG)	IEC 60228 Class 5 Flexible Cu/SnCu	21.6	1,080	14.2	110
FDEH 1.8 1×185 / 4G50 Cu	1 × 185 mm² (or 4G50 mm² / 373 kcmil)	IEC 60228 Class 5 Flexible Cu/SnCu	27.8	1,960	27.5	140
FDEH 1.8 1×300 / 4G95 Cu	1 × 300 mm² (or 1×535/777 kcmil)	IEC 60228 Class 5 Flexible Cu/SnCu	34.6	3,120	45.0	175

Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
Custom conductor cross-sections, core counts, pre-lugged tower kits and drum lengths available per GB/T 29631 & NB/T 31034 FDEH (±1080°/10m) LSZH Wind Torsion Cable Standard.

Electrical & thermal parameters
Configuration	Max. DC R₂₀ Ω/km	Rating / Impedance	Operating temp.
1 × 95 mm² (or 4G25 mm² / 3/0 AWG)	0.21	1.8/3 kV (0.6/1 kV) (320 A Cu)	−40…+105 °C
1 × 185 mm² (or 4G50 mm² / 373 kcmil)	0.11	1.8/3 kV (0.6/1 kV) (495 A Cu)	−40…+105 °C
1 × 300 mm² (or 1×535/777 kcmil)	0.06	1.8/3 kV (0.6/1 kV) (680 A Cu)	−40…+105 °C

Every production length undergoes routine conductor DC resistance, AC high-voltage spark/dielectric and dimensional verification.

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.

ConductorClass 5 stranding
Spark test100 % in-line
Lay-upCores, earth, fillers
SheathingInner, braid / screen, outer
Electrical testsAC voltage, resistance
DimensionsOD, wall thickness
Inspection documents & dispatchDrum & dispatch

Testing & inspection	Test value / reference	Frequency
Routine tests
Conductor DC resistance & dimensional verification (GB/T 29631 & NB/T 31034 FDEH (±1080°/10m) LSZH Wind Torsion Cable Standard)	DC resistance at 20 °C and insulation/sheath wall thickness within GB/T 29631 & NB/T 31034 FDEH (±1080°/10m) LSZH Wind Torsion Cable Standard limits	Every manufactured drum length
AC high-voltage dielectric & insulation resistance test (GB/T 29631 & NB/T 31034 FDEH (±1080°/10m) LSZH Wind Torsion Cable Standard)	Zero dielectric breakdown and verified insulation resistance for 1.8/3 kV (0.6/1 kV) rating	Every manufactured drum length
Sample tests
Low-temperature drip-loop torsion, oil & flame qualification (GB/T 29631 & NB/T 31034 FDEH (±1080°/10m) LSZH Wind Torsion Cable Standard)	Verified cold torsion cycle endurance, oil resistance and flame retardancy across −40…+105 °C	Type qualification & periodic lot audit

Inspection certificate

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

Product approvals

GB/T 29631 / NB/T 31034 CompliantEN 10204 3.1 Factory Test CertificateCE, RoHS 2 (2011/65/EU) & REACH

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX FDEH 1.8/3 kV GB/T 29631 / NB/T 31034 1.8/3 kV (0.6/1 kV) CE

Delivery form: Heavy-duty export fumigated wooden drums, steel reels or pre-cut wind turbine tower & drip-loop kits
Standard lengths: 500 m, 1,000 m or custom cut-to-length nacelle drip-loop and tower section sets
MOQ: 100 m (standard configurations) · 300 m (custom wind builds)
Lead time: 2–4 weeks ex-works
Incoterms: EXW, FCA, FOB, CIF, DAP

Technical documents

Downloads

PDFFDEH 1.8/3 kV (0.6/1 kV) GB/T 29631 & NB/T 31034 HEPR / LSZH Elastomer Wind Torsion Cable – technical datasheet3 configurations · 3-layer construction, technical data, approvals XLSXFDEH 1.8/3 kV spec data (Excel)All 3 configurations with dimensions and ratings, for your BOM or quotation

Revision: 2026-10-27
Updated: 2026-10-27

FAQ

Questions engineers ask first

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

What governing standard and construction define FDEH 1.8/3 kV (FDEH 1.8/3 kV (0.6/1 kV) GB/T 29631 & NB/T 31034 HEPR / LSZH Elastomer Wind Torsion Cable)?

FDEH 1.8/3 kV (FDEH 1.8/3 kV (0.6/1 kV) GB/T 29631 & NB/T 31034 HEPR / LSZH Elastomer Wind Torsion Cable) is manufactured in accordance with GB/T 29631 & NB/T 31034 FDEH (±1080°/10m) LSZH Wind Torsion Cable Standard for 1.8/3 kV (0.6/1 kV) wind turbine service over -40 to +105 °C. Its 3-layer construction comprises gb/t 3956 class 5 flexible copper (1.5-400 mm²), 90 °c / 105 °c high-strength epr/hepr (code e) and lszh thermoset elastomer outer sheath (code h).

What is the minimum bending radius and operating temperature range for FDEH 1.8/3 kV?

The minimum bending radius for FDEH 1.8/3 kV is 6 × OD across its continuous operating temperature range of -40 to +105 °C, ensuring mechanical torsion resistance and dielectric reliability in wind turbine nacelles, hubs and towers.

How are the concentric layers of FDEH 1.8/3 kV arranged from inside to outside?

From inside to outside, the construction sequence is: (01) GB/T 3956 Class 5 Flexible Copper (1.5-400 mm²) — Finely stranded plain or tinned copper conductor; (02) 90 °C / 105 °C High-Strength EPR/HEPR (Code E) — Cross-linked ethylene-propylene rubber dielectric; (03) LSZH Thermoset Elastomer Outer Sheath (Code H) — Low-smoke zero-halogen XL-EVA/EVM jacket passing ±1080°/10m torsion.

What factory test certificates are supplied with FDEH 1.8/3 kV?

Every production drum of FDEH 1.8/3 kV undergoes routine conductor DC resistance, AC high-voltage dielectric and dimensional testing per GB/T 29631 & NB/T 31034 FDEH (±1080°/10m) LSZH Wind Torsion Cable Standard, and is delivered with an EN 10204 3.1 factory test certificate.

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03Message for our engineers

FDEH 1.8/3 kV (0.6/1 kV) GB/T 29631 & NB/T 31034 HEPR / LSZH Elastomer Wind Torsion Cable

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