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35-500kV High Voltage Copper Conductor Cable XLPE Underground Industrial Power Transmission Cable

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F. T Cable Co., Ltd.

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35-500kV High Voltage Copper Conductor Cable XLPE Underground Industrial Power Transmission Cable

Insulation : Cross‑linked Polyethylene (XLPE) insulation

Brand Name : F.T

Application : Underground power transmission

Delivery Time : 30 days

Voltage Grade : 35kV‑500kV high voltage

Model Number : high voltage cable

Price : usd 0.14 ～ 1.28/ meter

Packaging Details : Wooden Drum、cardboard box、wooden pallet

emperature Rating : Max 90℃ continuous operating temperature

Place of Origin : china

MOQ : 1000

Shielding : Semi‑conductive shielding layer

Payment Terms : L/C,D/A,D/P,T/T,Western Union

Certification : CE，VDE,SO 9001

Supply Ability : 800–1500 kilometers per month

Conductor : High‑quality solid/stranded copper conductor

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35‑500kV High Voltage Copper Conductor Cable XLPE Underground Industrial Power Transmission Cable

Introduction

This series of high‑voltage power cables covers voltage levels from 35kV up to 500kV, mainly built with compact‑stranded high‑conductivity copper conductors and cross‑linked polyethylene (XLPE) insulation layers. Designed for long‑distance bulk power delivery, urban main grid networking, large industrial park power supply and new energy base transmission projects, it adapts stably to underground laying, tunnel installation and other complex construction environments. Every cable is produced following international power engineering standards, with strict partial discharge and aging resistance testing to ensure long‑term safe operation under heavy‑load conditions.

Specification

Nom. cross section (mm²)	Nom. Thickness of insulation(mm)	Nom. thickness of steel tape (mm)	Nom. thickness of sheath (mm)	Cable weight(km/kg) YJV	Cable weight(km/kg) YJLV	Max.D.C resistance of conductor at 20℃ (Ω/km) Cu	Max.D.C resistance of conductor at 20℃ (Ω/km) Al	Current rating at 25℃ (A) Direct in ground‑Cu	Current rating at 25℃ (A) Direct in ground‑Al	Current rating at 25℃ (A) Run in air‑Cu	Current rating at 25℃ (A) Run in air‑Al
3*2.5	0.7	1.8	11.3	158.5	111.4	7.41	12.1	35	27	26	20
3*4	0.7	1.8	12.2	210.4	135.8	4.61	7.41	45	36	34	27
3*6	0.7	1.8	13.4	280.4	167	3.08	4.61	57	46	43	35
3*10	0.7	1.8	16.1	430.7	238.3	1.83	3.08	77	59	60	47
3*16	0.7	1.8	18.4	623.6	318.2	1.15	1.91	105	80	83	64
3*25	0.9	1.8	22.1	947.1	463.7	0.727	1.20	125	100	105	82
3*35	0.9	1.8	24.6	1254	584	0.524	0.868	155	120	125	100
3*50	1.0	1.8	27.9	1660	752.2	0.387	0.641	185	145	160	125
3*70	1.1	1.8	32.8	2353	1041	0.268	0.443	225	175	200	155
3*95	1.1	2.0	37.1	3179	1359	0.193	0.320	270	210	245	200
3*120	1.2	2.1	41.2	3983	1684	0.153	0.253	310	240	285	220
3*150	1.4	2.3	45.8	4909	2084	0.124	0.206	345	270	325	250
3*185	1.6	2.4	50.9	6104	2561	0.0991	0.164	390	305	375	295
3*240	1.7	2.6	57.4	7941	3284	0.0754	0.125	450	355	440	345
3*300	1.8	2.8	63.4	9890	4049	0.0601	0.100	515	400	505	395

Product Structure

Conductor: Compact round stranded copper wire, low resistance, high current‑carrying capacity
Inner semi‑conductive shield: Smooth‑layer shielding to homogenize internal electric field
XLPE Insulation: Cross‑linked polyethylene core insulation, heat‑resistant and high‑insulation performance
Outer semi‑conductive shield: Controls external electric field and reduces partial discharge risk
Metal sheath: Corrosion‑resistant metal layer for mechanical protection and leakage prevention
Outer Sheath: HDPE anti‑aging jacket, waterproof, pressure‑resistant and wear‑resistant

35-500kV High Voltage Copper Conductor Cable XLPE Underground Industrial Power Transmission Cable

Application Scope

This high‑voltage XLPE cable is widely used in national main power grid construction, urban high‑voltage power transmission lines, large‑scale industrial zone power supply, wind farm & photovoltaic power station outgoing transmission, cross‑regional power delivery projects and key infrastructure power supporting projects.

35-500kV High Voltage Copper Conductor Cable XLPE Underground Industrial Power Transmission Cable

Core Advantages

Stable Conductivity & Low Power Loss

High‑purity compact copper conductor effectively cuts down transmission loss, suitable for long‑distance high‑voltage power delivery with continuous heavy‑load running.
Reliable Insulation Performance

XLPE cross‑linked insulation keeps stable electrical properties under high temperature and high‑voltage conditions, avoiding insulation breakdown during long‑term service.
Strong Environmental Adaptability

Anti‑corrosion, waterproof and pressure‑resistant outer sheath copes with underground burial, wet soil, chemical‑polluted zones and outdoor harsh weather.
Long Service Life & Low Maintenance

Strict quality control on shielding and insulation layers, partial discharge strictly limited, service life over 30 years with low later‑stage maintenance cost.
Standard‑Compliant Quality

Produced according to IEC, GB and other mainstream high‑voltage cable standards, with complete test reports and third‑party certification.

Quality Assurance & Certification

All products pass strict electrical performance, mechanical property and aging resistance tests. We provide test reports, factory inspection certificates and support third‑party certification inspection to match different national power grid bidding and engineering standards.

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