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longitudinal water blocking

7 Min Read
High Voltage (HV) cables are the critical infrastructure for primary power transmission and distribution, operating at voltage levels from 45kV to 132kV and beyond. Unlike medium voltage distribution cables, HV cables are designed for bulk power transfer over long distances with minimal losses, connecting generating stations to primary substations and forming the backbone of national and regional power grids. Manufactured to IEC 60840 (Power cables with extruded insulation for rated voltages above 30kV up to 150kV), these cables utilize XLPE (cross-linked polyethylene) insulation for its exceptional electrical properties, thermal stability, and long service life. The German VDE designation system (2XS(F)2Y, etc.) has become the international standard for specifying HV cable construction.
Technical Department
on05/01/2026

What are High Voltage Cables?

2XS(F)2Y cable, 2XS(FL)2Y cable, A2XS(F)2Y cable, A2XS(FL)2Y cable, 2XSFL2Y, A2XSFL2Y, 2XSF2Y, A2XSF2Y, VDE cable designation, German cable standard, high voltage cable, HV cable, high tension cable, power transmission cable, underground HV cable, buried HV cable, transmission cable, EHV cable, extra high voltage
8 Min Read
IEC 60502 is an international standard published by the International Electrotechnical Commission (IEC) that sets out the specification for power cables with extruded insulation. The standard covers cables with voltage ratings from 1 kV (Um = 1.2 kV) up to 30 kV (Um = 36 kV), designed for fixed installations such as distribution networks and industrial installations. This widely recognized standard serves as a primary reference for cable manufacturers worldwide and forms the basis for numerous national and regional cable standards.
Technical Department
on29/12/2025

What is IEC 60502 Cable?

IEC 60502 對導體類型、絕緣材料和護套化合物提供了詳細規格。絕緣材料包括 PVC（最高溫度 70°C）、XLPE、EPR 和 HEPR（均為最高 90°C）。導體類別包括第 1 類（實心）、第 2 類（絞合）和第 5 類（柔性），尺寸範圍從 1.5 mm² 到 1600 mm²。護套化合物包括 PVC、PE 和用於防火敏感區域的無鹵素材料。XLPE 絕緣的標稱厚度從 0.6/1 kV 的 1.0 mm 到 18/30 kV 的 8.0 mm 不等。
5 Min Read
BS 6622 cable, XLPE insulation, AWA armour, SWA cable, medium voltage cable, 11kV cable, 33kV power cable, underground cable, direct burial cable
Technical Department
on05/12/2025

What is BS 7870-4.10 TRIPLEX Cable?

BS 7870-4.10 TRIPLEX cable represents a specialized category of medium voltage power distribution cables designed specifically for utility and industrial applications. According to the British Standards Institution, BS 7870-4.10 specifies requirements for distribution cables with extruded insulation rated from 11 kV to 33 kV. The TRIPLEX formation consists of three single-core cables laid together, providing a more efficient installation solution compared to individually pulled single-core cables.