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Product

IEC 62067 EHV-HPTE 525 kV IEC 62067 / CIGRE TB 852320 kV – 525 kV−25…+90 °C

525 kV HPTE Thermoplastic Elastomer Insulated Extra-High-Voltage CableIEC 62067 / CIGRE TB 852 · 320 kV – 525 kV · -25 °C to +90 °C industrial EHV-HPTE 525 kV

525 kV HPTE Thermoplastic Elastomer Insulated Extra-High-Voltage Land Cable (EHV-HPTE 525 kV) engineered to IEC 62067 / CIGRE TB 852 for 320 kV – 525 kV service across -25 °C to +90 °C, featuring stranded aluminum conductor and hdpe outer sheath with minimum

Approved

Low-EMC design

EMC screen

Outdoor & humid

Configuration

Order designation: EHV-HPTE 525 kV 4G2.5
Outer Ø ≈: 10.8 mm
Total weight ≈: 186 kg/km
Min. bend R (fixed): 86 mm
Configuration: 4 × 2.5 mm²

All sizes (12)

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: 320 kV – 525 kV
Operating temp.: −25…+90 °C
Min. bend radius: 20 × OD
Conductor: aluminum conduct
Outer layer: HDPE outer
Standard: IEC 62067

Typical values for this cable type, based on IEC 62067 / CIGRE TB 852 — confirmed in the datasheet and quotation for your order.

Application fit

Is EHV-HPTE 525 kV right for your machine?

Fixed installation

Suitable

Engineered and verified for fixed service in accordance with IEC 62067 / CIGRE TB 852.

Switchgear & control cabinet wiring

Suitable

Suitable for switchgear, control panels and equipment terminations within 20 × OD bend radius.

TBM gantry & advancing tunnel reel

With conditions

Use mechanical conduit or armoured protection where exposed to rock fall or crushing loads.

Motorised monospiral reel

Not suitable

Not designed for high-speed monospiral crane reeling; select a dedicated reeling cable.

NSHTOU Reeling Cable

Typical machinesRenewable Energy & EV ChargingHigh-Voltage Grid & Substation InterconnectsWind, Solar & Hydro Power EvacuationUtility Overhead & Underground DistributionIndustrial Power Infrastructure

Construction

Layer by layer

Shown: EHV-HPTE 525 kV (IEC 62067 / CIGRE TB 852) with stranded aluminum conductor, inner water-swellable tape and hdpe outer sheath (8-layer construction).

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	Stranded aluminum conductor	High-conductivity aluminum conductor per IEC 62067 / CIGRE TB 852IEC 62067 / CIGRE TB 852
2	Inner water-swellable tape	Inner water-swellable tape (lapped tape)IEC 62067 / CIGRE TB 852
3	Inner semiconducting screen	Extruded Inner semiconducting screen stress-control layerIEC 62067 / CIGRE TB 852
4	HPTE polypropylene-based insulation	Extruded HPTE polypropylene-based insulation dielectric (continuous layer)IEC 62067 / CIGRE TB 852
5	Outer semiconducting screen	Extruded Outer semiconducting screen stress-control layerIEC 62067 / CIGRE TB 852
6	Water-swellable barrier tapes	Helically applied water-swellable barrier tapesIEC 62067 / CIGRE TB 852
7	Longitudinally welded aluminium sheath	Helically applied longitudinally welded aluminium sheathIEC 62067 / CIGRE TB 852
8	HDPE outer sheath	Extruded HDPE outer sheath protective layer (continuous layer)IEC 62067 / CIGRE TB 852

EHV-HPTE 525 kV — Standard Execution

Built to IEC 62067 / CIGRE TB 852 with stranded aluminum conductor and hdpe outer sheath

EHV-HPTE 525 kV — Custom Cross-Sections

Full range of metric mm² and AWG/kcmil conductor sizes per IEC 62067 / CIGRE TB 852

EHV-HPTE 525 kV — Export Drum Supply

Supplied with EN 10204 3.1 routine dielectric & conductor resistance test certificate

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on IEC 62067 / CIGRE TB 852. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage / duty: 320 kV – 525 kV (IEC 62067 / CIGRE TB 852)
Conductor construction: Stranded aluminum conductor — High-conductivity aluminum conductor per IEC 62067 / CIGRE TB 852
Primary insulation / dielectric: Inner water-swellable tape — Inner water-swellable tape (lapped tape)

Thermal

Continuous operating temperature: −25…+90 °C per IEC 62067 / CIGRE TB 852
Short-circuit / peak thermal limit: +160 °C to +250 °C (5 s adiabatic limit depending on dielectric class)
Minimum installation temperature: −5 °C (thermoplastic) / −25 °C (cross-linked or elastomer) / −40 °C (metallic)

Mechanical

Outer protection / covering: HDPE outer sheath — Extruded HDPE outer sheath protective layer (continuous layer)
Minimum bending radius: 20 × OD (installed / static routing)
Layer count & geometry: 8 concentric/structural layers verified by cross-section inspection

Resistance

Environmental & chemical durability: Engineered for industrial service in accordance with IEC 62067 / CIGRE TB 852
RoHS & REACH compliance: RoHS 2 (2011/65/EU + 2015/863) & REACH SVHC compliant

Reference standards

Governing product standard: IEC 62067 / CIGRE TB 852
Quality management & inspection: ISO 9001:2015 & EN 10204 3.1 factory routine inspection

Identification

Model designation: EHV-HPTE 525 kV
Customs tariff (HS): 8544.49 / 8544.60 / 7614.10

Sizes

12 standard EHV-HPTE 525 kV cable sizes

Manufactured to IEC 62067 / CIGRE TB 852 across standard single-core and multi-core cross-sections.

Dimensions, construction & weights
Order designation	Configuration	Outer Ø ≈ mm	Weight ≈ kg/km	Min. bend R fixed mm
EHV-HPTE 525 kV Standard Production Schedule (320 kV – 525 kV · −25…+90 °C)
EHV-HPTE 525 kV 3G1.5	3 × 1.5 mm²	8.4	105	68
EHV-HPTE 525 kV 4G1.5	4 × 1.5 mm²	9.2	128	74
EHV-HPTE 525 kV 5G1.5	5 × 1.5 mm²	10.1	156	81
EHV-HPTE 525 kV 3G2.5	3 × 2.5 mm²	9.8	148	78
EHV-HPTE 525 kV 4G2.5	4 × 2.5 mm²	10.8	186	86
EHV-HPTE 525 kV 5G2.5	5 × 2.5 mm²	11.9	228	95
EHV-HPTE 525 kV 4G4	4 × 4.0 mm²	12.6	268	101
EHV-HPTE 525 kV 4G6	4 × 6.0 mm²	14.2	365	114
EHV-HPTE 525 kV 4G10	4 × 10 mm²	17.5	580	140
EHV-HPTE 525 kV 4G16	4 × 16 mm²	20.4	845	163
EHV-HPTE 525 kV 4G25	4 × 25 mm²	24.8	1,290	198
EHV-HPTE 525 kV 4G35	4 × 35 mm²	27.9	1,710	223

Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
Single-core and multi-core sizes from 0.5 mm² up to 630 mm² (or AWG/kcmil) available per IEC 62067 / CIGRE TB 852.

Conductor resistance & current-carrying capacity
Cross-section	Max. DC R₂₀ Ω/km	Current in air A (30 °C) ≈	Voltage drop mV/A·m
1.5 mm² (AWG 16)	13.30	18	29.0
2.5 mm² (AWG 14)	7.98	26	17.5
4.0 mm² (AWG 12)	4.95	34	10.9
6.0 mm² (AWG 10)	3.30	44	7.3
10 mm² (AWG 8)	1.91	61	4.2
16 mm² (AWG 6)	1.21	82	2.7
25 mm² (AWG 4)	0.78	108	1.7
35 mm² (AWG 2)	0.55	135	1.2

Current ratings are for 3 loaded conductors at 30 °C ambient in free air/tray per IEC 60364-5-52 / NEC.

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 (IEC 62067 / CIGRE TB 852)	DC resistance at 20 °C and geometry within IEC 62067 / CIGRE TB 852 class limits	Every manufactured drum / spool
Routine dielectric / spark / structural integrity test (IEC 62067 / CIGRE TB 852)	Zero breakdown or structural defect over full production length	Every manufactured drum / spool
Sample tests
Thermal aging, mechanical & material qualification (IEC 62067 / CIGRE TB 852)	Full compliance with IEC 62067 / CIGRE TB 852 across −25…+90 °C	Type qualification & periodic sample audit

Inspection certificate

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

Product approvals

IEC 62067 CompliantEN 10204 3.1 Routine 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 EHV-HPTE 525 kV <size> IEC 62067 320 kV – 525 kV CE

Delivery form: Non-returnable fumigated wooden drums or precision DIN spools
Standard lengths: 500 m · 1000 m · 2000 m drums (custom cut lengths on request)
MOQ: 500 m (stock sizes) · 1000 m (custom production)
Lead time: 2–4 weeks ex-works
Incoterms: EXW, FCA, FOB, CIF, DAP

Technical documents

Downloads

PDF525 kV HPTE Thermoplastic Elastomer Insulated Extra-High-Voltage – technical datasheet12 sizes · construction, technical data, approvals XLSXEHV-HPTE 525 kV spec data (Excel)All 12 sizes with dimensions and data, for your BOM or quotation

Revision: 2026-10-21
Updated: 2026-10-21

FAQ

Questions engineers ask first

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

What governing standard and construction define EHV-HPTE 525 kV (525 kV HPTE Thermoplastic Elastomer Insulated Extra-High-Voltage Land Cable)?

EHV-HPTE 525 kV (525 kV HPTE Thermoplastic Elastomer Insulated Extra-High-Voltage Land Cable) is manufactured in accordance with IEC 62067 / CIGRE TB 852 for 320 kV – 525 kV service over -25 °C to +90 °C. Its 8-layer construction comprises stranded aluminum conductor, inner water-swellable tape, inner semiconducting screen, hpte polypropylene-based insulation, outer semiconducting screen, water-swellable barrier tapes, longitudinally welded aluminium sheath, hdpe outer sheath.

What is the minimum bending radius and installation temperature for EHV-HPTE 525 kV?

The minimum installed bending radius for EHV-HPTE 525 kV is 20 × OD across its continuous operating temperature range of -25 °C to +90 °C, ensuring mechanical and dielectric stability without conductor or insulation strain.

How are the concentric layers of EHV-HPTE 525 kV arranged from inside to outside?

From inside to outside, the construction sequence is: (01) Stranded aluminum conductor (High-conductivity aluminum conductor per IEC 62067 / CIGRE TB 852); (02) Inner water-swellable tape (Inner water-swellable tape (lapped tape)); (03) Inner semiconducting screen (Extruded Inner semiconducting screen stress-control layer); (04) HPTE polypropylene-based insulation (Extruded HPTE polypropylene-based insulation dielectric (continuous layer)); (05) Outer semiconducting screen (Extruded Outer semiconducting screen stress-control layer); (06) Water-swellable barrier tapes (Helically applied water-swellable barrier tapes); (07) Longitudinally welded aluminium sheath (Helically applied longitudinally welded aluminium sheath); (08) HDPE outer sheath (Extruded HDPE outer sheath protective layer (continuous layer)).

What factory test certificates are supplied with EHV-HPTE 525 kV?

Every production drum or spool of EHV-HPTE 525 kV undergoes routine conductor DC resistance, dimensional and dielectric/integrity testing per IEC 62067 / CIGRE TB 852, 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

EHV-HPTE 525 kV 525 kV HPTE Thermoplastic Elastomer Insulated Extra-High-Voltage Cable

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Reel & motion:
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