The Role of PVC Cable Sheath and Insulation Layer

In the structure of wires and cables, the insulation layer and sheath layer are essential components.

• The insulation layer serves to isolate the current, preventing leakage and short circuits between conductors or between the conductor and external elements. This ensures safe and stable power transmission. PVC is one of the most widely used insulation materials due to its excellent electrical properties, easy processability, and cost efficiency. It is especially suitable for low- to medium-voltage power and control cables.

• The sheath layer acts as the “protective jacket” of the cable. It shields the cable from mechanical damage, chemical corrosion, moisture, and UV radiation. PVC sheathing offers outstanding weather resistance, abrasion resistance, and flame retardancy, effectively extending the cable’s service life and ensuring reliable performance in demanding environments.

Therefore, PVC insulation and sheath layers complement each other. They not only enhance the safety and durability of cables but also provide customers with a practical and cost-effective solution.

✨As a professional PVC compound manufacturer, we supply high-stability, tailor-made cable-grade PVC compounds with options for color customization and performance optimization. Whether for insulation or sheathing applications, our products help customers improve competitiveness and meet diverse market and application requirements.