Three Core XLPE Insulated Unarmored Cable with Copper Conductor
Three screened copper cores in one cable for medium-voltage distribution. XLPE insulation and individual copper tape screens combine with a common PVC sheath for a coordinated three-phase cable layout.
3.6/6 to 26/35 kV
Voltage configurations
25–400 mm²
Size range depends on voltage
Copper tape screen
Unarmored construction
Three Cores. One Coordinated Construction.
Conductor
Class 2 plain annealed, compacted copper.
Electrical Insulation System
Semiconductive conductor screen, XLPE insulation and semiconductive insulation screen.
Screen & Outer Protection
Copper tape screens around the insulated cores, non-hygroscopic filler, non-woven binder tape and a black PVC (ST2) outer sheath.
Voltage & Size Selection
What Does 8.7/15(17.5) kV Mean?
U₀ = 8.7 kV
Rated voltage between the conductor and earth or metallic screen.
U = 15 kV
Rated voltage between phase conductors.
Uₘ = 17.5 kV
Maximum system voltage associated with the rating.
Select the rating to match the system and its operating conditions. Voltage-rating reference.
Medium-Voltage Cable Basics
Why the Extra Screens?
Semiconductive layers help control the electric field around the insulation. The metallic screen is a separate component, coordinated with the earthing design.
Screening Is Not Armor
The copper tape is an electrical screen, not a substitute for mechanical armor. Route protection must suit the installation.
Accessories Matter
Joints and terminations must match the voltage rating, insulation diameter and screen construction. Stress control at cable ends is part of a complete MV connection.
Background: Prysmian electrical field control · Nexans termination stress control.
Operating Characteristics
Emergency and short-circuit limits do not describe continuous operation.
Dimensions & Weight
Select the voltage first, then the conductor cross-section per core. The tables show key structural dimensions for three-core cables; weights are approximate. Confirm the final cable data for accessory selection and installation planning.
Specify the Whole Cable System
Current & Heat
Current capacity depends on the installation method, ambient conditions and grouping. A cross-section alone does not define ampacity.
Water & Mechanical Exposure
Water-blocking and mechanical protection are construction choices. A standard PVC sheath alone does not establish suitability for every buried or wet route.
Installation Planning
Allow for the overall three-core cable diameter when planning ducts, bends and pulling. Match three-core terminations to the voltage, insulation diameter and screen arrangement.
General scope: IEC 60502-2 covers 6–30 kV cables (Uₘ up to 36 kV); the applicable specification for a 26/35(40.5) kV project must be established separately.
Professional Cable Manufacturing
Coordinated production processes support consistent conductor formation, cable assembly and finishing. Material selection and production planning follow the required cable construction and order specification.
Quality Control
Production and laboratory inspection capabilities support material evaluation and finished-cable quality control.
Plan Your Medium-Voltage Cable Order
Send the voltage rating, conductor size, route length, installation conditions, screen requirements and destination standard. Include the required drum lengths and termination interfaces.
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