IEC 60502-2 Medium Voltage Cable

This medium voltage cable is designed for fixed power distribution where insulation performance, shielding and mechanical protection all need to work together.

The cable uses Class 2 copper conductors with XLPE insulation. Conductor shielding and insulation shielding are applied by triple extrusion, followed by a copper tape screen. This structure is used to control the electric field around the insulation and provide a defined shielding path during operation.

The cable is rated at AC 3.6/6(7.2)kV and is suitable for medium voltage distribution in industrial facilities, substations, power infrastructure and other fixed installations.

The outer sheath is LSZH/ST8. It is a practical choice for projects where reduced smoke and halogen-free materials are required, especially in enclosed or public areas where fire conditions need to be considered.

• Class 2 copper conductor
• XLPE insulation
• Conductor shield and insulation shield
• Copper tape screen
• LSZH/ST8 outer sheath
• 3-core construction

The conductor shield, XLPE insulation and insulation shield are produced through triple extrusion. Keeping these layers closely controlled during production helps maintain a uniform insulation system around each conductor.

The copper tape screen provides the cable with a continuous metallic shielding layer and can be connected to the grounding system according to the installation design.

This cable is suited to fixed medium voltage distribution, including:

• Industrial plants and production facilities
• Substations and distribution systems
• Power supply lines between transformers and distribution equipment
• Commercial or infrastructure projects requiring LSZH cable
• Indoor installations where smoke and halogen emissions are a concern

For industrial projects, the LSZH sheath can be useful in areas where cable runs pass through enclosed buildings or occupied spaces. The cable is intended for fixed installation rather than applications involving repeated movement.

For a medium voltage cable, the insulation system is more than just an insulating layer. The conductor shield and insulation shield help keep the electric field around the XLPE insulation under control, while the copper tape screen provides a defined metallic screen around the cores.

This layered construction is particularly important in medium voltage systems, where insulation quality and field control have a direct effect on long-term cable operation.

The LSZH/ST8 sheath adds another consideration for projects with specific fire-safety requirements. Instead of using the same PVC sheath for every installation, the sheath material can be selected according to the conditions of the project.

The cable is designed in accordance with IEC 60502-2 and related standards, including IEC 60228 and applicable requirements for flame retardancy and halogen-free performance.

Certification and test documentation can be provided according to the project requirements.

Huayu Cable manufactures medium voltage cables for power distribution projects where the cable structure needs to match the installation environment, voltage level and applicable standard.
For project orders, our technical team can work from a cable schedule, specification sheet or project standard rather than relying only on a general catalogue description. This is especially useful when the project requires a specific sheath material, conductor size, shielding arrangement or certification package.

ISO Quality Management System Certificate
Verification to Standard: IEC 60502-2:2020, EN IEC 61000-6-1:2019,
EN IEC 61000-6-3:2021

• Built for industrial, utility and offshore medium-voltage power transmission circuits
• Multi-core copper conductors resist harsh outdoor and coastal air conditions
• Solid insulation performs well in damp, salt-spray and oily areas
• Heavy-duty outer sheath copes with underground moisture and chemical splashes
• Option for integrated SWA steel wire armour for burial & open-site mechanical protection
• LSZH / flame-retardant grades available to meet IEC 60502-2 power rules
• Every lot gets full electrical tests before shipment