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Product

flexible elastomer wind turbine torsion cable GB/T 29631 / NB/T 310341.8/3 kV (0.6/1 kV) (-40 to +90 °C)Polychloroprene (CR) / CSM Outer She

FDEFP 1.8/3 kV (0.6/1 kV) GB/T 29631 Tinned-Copper Braid Screened EPR/CR Wind Torsion CableGB/T 29631 / NB/T 31034 — 1.8/3 kV (0.6/1 kV) — -40 to +90 °C Wind Turbine Cable

FDEFP 1.8/3 kV (0.6/1 kV) GB/T 29631 Tinned-Copper Braid Screened EPR/CR 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 +90 °C (min. bend radius 6 × OD).

Anti-torsion braid

EMC screen

Oil-resistant

Approved

Configuration

Order designation: FDEFP 1.8 7G1.5 mm²
Outer Ø ≈: 11.4 mm
Net weight ≈: 215 kg/km
Max. pulling ≈: 2.4 kN
Core / stranding: IEC 60228 Class 5/6 / Class K Cu

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…+90 °C
Min. bend radius: 6 × OD
Core / conductor: Class 5 Flexible
Outer protection: Polychloroprene
Standard: GB/T 29631 / NB/

Typical values for this cable type, based on GB/T 29631 & NB/T 31034 FDEFP EMC-Screened EPR/CR Wind Torsion Cable Standard — confirmed in the datasheet and quotation for your order.

Application fit

Is FDEFP 1.8/3 kV Screened right for your machine?

Free-hanging vertical run

Suitable

Class 5 flexible copper cores and cross-linked EPR / silicone / PCP rubber jackets survive >10,000–18,000 yaw drip-loop torsion cycles.

Fixed installation

Suitable

Routes continuously from nacelle generators and yaw/pitch cabinets through the free-hanging drip loop into upper tower trays.

Offshore platform & shipboard deck trays

Suitable

Polychloroprene (CR/PCP), CPE, silicone (FDGG) and PUR (FDGU) sheaths resist hydraulic oil, grease, ozone, salt spray and −40 to −55 °C co

VFD inverter to AC motor screened feeder

Suitable

Copper-braid screened variants (FDEFP, FDEHP, WINDLINK WTTC) contain PWM converter electromagnetic interference along the drip loop.

Festoon & line chain

Not suitable

Wind turbine vertical torsion rubber cable is optimized for axial twist rather than high-speed trolley festoons.

Use (N)3GRDC5G-J/O Festoon Cable

Typical machinesRenewable Energy & EV ChargingOnshore & Offshore Wind Turbine Yaw Drip LoopsUltra-Cold (−55 °C) Arctic & High-Altitude Wind FarmsGB/T 29631 & NB/T 31034 Utility Wind GeneratorsNacelle Auxiliary Power, Yaw & Pitch Motor Circuits

Construction

Layer by layer

Shown: FDEFP 1.8/3 kV Screened (GB/T 29631 & NB/T 31034 FDEFP EMC-Screened EPR/CR Wind Torsion Cable Standard) featuring class 5 flexible copper / tinned copper cores, epr primary core insulation (code e) and polychloroprene (cr) / csm outer sheath (code f) (4-layer construction).

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	Class 5 Flexible Copper / Tinned Copper	Stranded flexible copper conductors rated up to 1.8/3 kV
2	EPR Primary Core Insulation (Code E)	High-dielectric ethylene-propylene rubber insulation
3	Tinned Copper Wire Braid Screen (Code P)	High-coverage braided tinned copper EMC shield
4	Polychloroprene (CR) / CSM Outer Sheath	Oil-, salt-spray- and torsion-resistant heavy rubber jacket

FDEFP 1.8/3 kV Screened — Standard Wind Turbine Execution

Built to GB/T 29631 & NB/T 31034 FDEFP EMC-Screened EPR/CR Wind Torsion Cable Standard with class 5 flexible copper / tinned copper cores and polychloroprene (cr) / csm outer sheath (code f)

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

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

FDEFP 1.8/3 kV Screened — 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 FDEFP EMC-Screened EPR/CR 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 FDEFP EMC-Screened EPR/CR Wind Torsion Cable Standard)
Core / conductor construction: Class 5 Flexible Copper / Tinned Copper Cores — Stranded flexible copper conductors rated up to 1.8/3 kV
Primary dielectric / insulation: EPR Primary Core Insulation (Code E) — High-dielectric ethylene-propylene rubber insulation

Thermal

Continuous operating temperature: −40…+90 °C (wind turbine nacelle, hub & tower duty)
Low-temperature torsion & cold bend: Verified cold-flex and torsion endurance across −40…+90 °C per GB/T 29631 & NB/T 31034 FDEFP EMC-Screened EPR/CR Wind Torsion Cable Standard
Storage & transport temperature: −40…+80 °C on export wooden/steel cable drum

Mechanical

Outer jacket / sheath protection: Polychloroprene (CR) / CSM Outer Sheath (Code F) — Oil-, salt-spray- and torsion-resistant heavy rubber jacket
Minimum bending radius: 6 × OD
Intermediate screen / separator / core layer: Tinned Copper Wire Braid Screen (Code P) — High-coverage braided tinned copper EMC shield

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 FDEFP EMC-Screened EPR/CR Wind Torsion Cable Standard
Flame retardancy & smoke/halogen emission: Flame-retardant and environmental performance verified per GB/T 29631 & NB/T 31034 FDEFP EMC-Screened EPR/CR 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 FDEFP EMC-Screened EPR/CR 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: FDEFP 1.8/3 kV Screened
Sheath colour & metre marking: Continuous metre-marked black outer finish (Polychloroprene )
Customs tariff (HS): 8544.49 / 8544.60

Sizes

3 standard FDEFP 1.8/3 kV Screened wind turbine configurations

Manufactured to GB/T 29631 & NB/T 31034 FDEFP EMC-Screened EPR/CR 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
FDEFP 1.8/3 kV Screened Construction Schedule (−40…+90 °C)
FDEFP 1.8 7G1.5 mm²	7G1.5 mm² (or 7C × 16 AWG)	IEC 60228 Class 5/6 / Class K Cu	11.4	215	2.4	70
FDEFP 1.8 12G1.5 mm²	12G1.5 mm² (or 12C × 16 AWG)	IEC 60228 Class 5/6 / Class K Cu	14.8	345	4.1	90
FDEFP 1.8 18G2.5 mm²	18G2.5 mm² (or 18C × 14 AWG)	IEC 60228 Class 5/6 / Class K Cu	19.6	680	9.8	120

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 FDEFP EMC-Screened EPR/CR Wind Torsion Cable Standard.

Electrical & thermal parameters
Configuration	Max. DC R₂₀ Ω/km	Rating / Impedance	Operating temp.
7G1.5 mm² (or 7C × 16 AWG)	13.30	1.8/3 kV (0.6/1 kV) (18 A)	−40…+90 °C
12G1.5 mm² (or 12C × 16 AWG)	13.30	1.8/3 kV (0.6/1 kV) (16 A)	−40…+90 °C
18G2.5 mm² (or 18C × 14 AWG)	7.98	1.8/3 kV (0.6/1 kV) (24 A)	−40…+90 °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 FDEFP EMC-Screened EPR/CR Wind Torsion Cable Standard)	DC resistance at 20 °C and insulation/sheath wall thickness within GB/T 29631 & NB/T 31034 FDEFP EMC-Screened EPR/CR Wind Torsion Cable Standard limits	Every manufactured drum length
AC high-voltage dielectric & insulation resistance test (GB/T 29631 & NB/T 31034 FDEFP EMC-Screened EPR/CR 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 FDEFP EMC-Screened EPR/CR Wind Torsion Cable Standard)	Verified cold torsion cycle endurance, oil resistance and flame retardancy across −40…+90 °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 FDEFP 1.8/3 kV Screened 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

PDFFDEFP 1.8/3 kV (0.6/1 kV) GB/T 29631 Tinned-Copper Braid Screened EPR/CR Wind Torsion Cable – technical datasheet3 configurations · 4-layer construction, technical data, approvals XLSXFDEFP 1.8/3 kV Screened 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 FDEFP 1.8/3 kV Screened (FDEFP 1.8/3 kV (0.6/1 kV) GB/T 29631 Tinned-Copper Braid Screened EPR/CR Wind Torsion Cable)?

FDEFP 1.8/3 kV Screened (FDEFP 1.8/3 kV (0.6/1 kV) GB/T 29631 Tinned-Copper Braid Screened EPR/CR Wind Torsion Cable) is manufactured in accordance with GB/T 29631 & NB/T 31034 FDEFP EMC-Screened EPR/CR Wind Torsion Cable Standard for 1.8/3 kV (0.6/1 kV) wind turbine service over -40 to +90 °C. Its 4-layer construction comprises class 5 flexible copper / tinned copper cores, epr primary core insulation (code e) and polychloroprene (cr) / csm outer sheath (code f).

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

The minimum bending radius for FDEFP 1.8/3 kV Screened is 6 × OD across its continuous operating temperature range of -40 to +90 °C, ensuring mechanical torsion resistance and dielectric reliability in wind turbine nacelles, hubs and towers.

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

From inside to outside, the construction sequence is: (01) Class 5 Flexible Copper / Tinned Copper Cores — Stranded flexible copper conductors rated up to 1.8/3 kV; (02) EPR Primary Core Insulation (Code E) — High-dielectric ethylene-propylene rubber insulation; (03) Tinned Copper Wire Braid Screen (Code P) — High-coverage braided tinned copper EMC shield; (04) Polychloroprene (CR) / CSM Outer Sheath (Code F) — Oil-, salt-spray- and torsion-resistant heavy rubber jacket.

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

Every production drum of FDEFP 1.8/3 kV Screened undergoes routine conductor DC resistance, AC high-voltage dielectric and dimensional testing per GB/T 29631 & NB/T 31034 FDEFP EMC-Screened EPR/CR Wind Torsion Cable Standard, and is delivered with an EN 10204 3.1 factory test certificate.

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01Selected sizes

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02Reel & motion

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03Message for our engineers

FDEFP 1.8/3 kV (0.6/1 kV) GB/T 29631 Tinned-Copper Braid Screened EPR/CR Wind Torsion Cable

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Reel & motion:
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