Medium Voltage Power Cable

Underground: Installed in ducts, trenches, or direct burial.

Overhead: Supported on poles or towers.

Submarine: For underwater power transmission.

Conduits: Used for extra protection.

Key standards include:

IEC 60502-2: For cables rated from 1kV to 35kV.

IEEE/ICEA Standards: For North American applications.

BS EN 50618: For solar cable applications.

NEC (National Electrical Code): For installation guidelines.

Conductor: Copper or aluminum.

Insulation: XLPE, EPR, or PVC.

Shielding: Copper tape or wires.

Outer Sheath: PVC, HDPE, or LSZH (Low Smoke Zero Halogen).

Voltage rating and system requirements.

Current carrying capacity.

Installation conditions (underground, overhead, or in conduits).

Environmental factors (temperature, moisture, chemical exposure).

Short-circuit rating.

Single-core cables: For installations with limited space and low magnetic interference.

Three-core cables: For cost efficiency and compact design in certain applications.

Armored cables: With added protection for harsh environments.

Conductor Shield: Provides uniform electric field distribution.

Insulation Shield: Ensures proper grounding and minimizes electric stress.

Metallic Shield: Typically a layer of copper tape or wires to carry fault currents.

Outer Jacket: Provides mechanical protection and environmental resistance.

Distribution networks for utilities.

Renewable energy installations like wind and solar farms.

Industrial plants and manufacturing facilities.

Commercial buildings for substation-to-equipment connections.

Underground and overhead power transmission.

Medium Voltage (MV) power cables are designed to carry electrical energy in the range of 1kV to 35kV. They are used in industrial, commercial, and utility applications to transmit power between substations, transformers, and equipment.