Structure of an Underground Cable
Underground cables are made up of various layers to ensure safety and durability. The main parts include:
- Conductor: Made of materials like copper or aluminum to carry electricity efficiently.
- Insulation: Prevents current leakage and protects the conductor. Common materials include PVC, XLPE, or rubber.
- Metallic Sheath: Protects the cable from moisture and provides an additional layer of insulation.
- Bedding Layer: Provides cushioning and mechanical protection to the sheath.
- Armoring: A layer of steel or aluminum to protect the cable from physical damage.
- Outer Sheath: The final protective layer, resistant to environmental conditions.