66KV POWER CABLE

Application

IEC 60840 66kV XLPE HV cable for primary transmission from utilities to substations, regional grid connections, industrial zone underground feeders, and wind farm collector networks. Triple-layer longitudinal/radial water-blocking system extends underground service life.

Core Strengths

Water ingress kills 66kV cable lifespan. Our triple-layer water-blocking system and XLPE insulation provide superior moisture protection for long underground service. CE/TÜV/ISO. Factory direct.

Standard

GB 11017， IEC60840

Construction

Conductor: Stranded copper (class 2)

Conductor screen: Semiconductive layer

Insulation: XLPE (cross-linked polyethylene)

Insulation screen: Semiconductive layer

Copper wire with copper tape: Metallic shield

Water‑proof layer: Semi‑conductive water‑blocking tape

Inner sheath: PVC or PE

Corrugated aluminum tape: Longitudinal or helical corrugated AL tape

Outer sheath: HDPE or PVC

Features

Rated voltage: 66kV (HV transmission)

XLPE insulation – 90°C continuous, 250°C short‑circuit

Copper wire + copper tape shield – uniform electric field, corona suppression, fault return path

Water‑proof layer – prevents longitudinal moisture ingress

Corrugated aluminum tape – radial water barrier with bending flexibility

Suitable for primary transmission, regional grid connections, underground feeders, wind farm collector networks

Installation: direct burial, ducts, tunnels, or submarine (with protection)

100% factory tested to IEC 60840

Product Data Sheet

Images