IEC 60840 is an internationally recognized standard developed by the International Electrotechnical Commission (IEC) that defines the test methods and performance requirements for high-voltage power cable systems with extruded insulation. The standard applies to systems designed for rated voltages above 30 kV (Um = 36 kV) up to and including 150 kV (Um = 170 kV), making it the essential reference for cables used in power transmission infrastructure, grid interconnections, and large-scale industrial energy networks.

on29/12/2025

What is IEC 60840 Cable?

IEC 60840 is an internationally recognized standard developed by the International Electrotechnical Commission (IEC) that defines the test methods and performance requirements for high-voltage power cable systems with extruded insulation. The standard applies to systems designed for rated voltages above 30 kV (Um = 36 kV) up to and including 150 kV (Um = 170 kV), making it the essential reference for cables used in power transmission infrastructure, grid interconnections, and large-scale industrial energy networks.

High-voltage XLPE (Cross-Linked Polyethylene) insulated power cables rated at 36/60÷69(72.5) kV represent the backbone of modern power transmission infrastructure. These cables are specifically engineered for applications requiring exceptional electrical performance, thermal stability, and mechanical durability under demanding operational conditions.

Technical Department

on12/12/2025

HIGH-VOLTAGE XLPE POWER CABLE S36/60÷69(72.5) kV

The cable designations XRUHKXS, 2XS(FL)2Y, and N2XS(FL)2Y indicate specific construction standards and regional compliance requirements. According to the International Electrotechnical Commission, IEC 60840 defines test methods and performance requirements for high-voltage power cable systems with extruded insulation, covering systems designed for rated voltages above 30 kV (Um = 36 kV) up to and including 150 kV (Um = 170 kV).

Wind turbine medium voltage cables serve as the critical power transmission lifeline connecting wind turbine generators to step-up transformers and grid infrastructure. These cables must withstand extreme operational conditions including continuous mechanical stress from nacelle rotation, temperature fluctuations from -40°C to +90°C, and exposure to moisture in both onshore and offshore environments.

Technical Department

on12/12/2025

Wind Turbine Medium Voltage XLPE Power Cables12/20 (24) kV — Longitudinally & Radially Sealed

12/20 (24) kV XLPE-insulated cables manufactured by Anhui Feichun Special Cable Co., Ltd. feature longitudinal and radial water-blocking technology, ensuring reliable performance throughout the cable’s 30+ year design life. The cross-linked polyethylene (XLPE) insulation provides superior dielectric properties compared to traditional PVC, enabling higher operating temperatures and improved current-carrying capacity.