
XHHW wire is a high-performance electrical conductor primarily used in applications where durability, heat resistance, and water resistance are critical. Its superior properties stem from its unique insulation material.
Characteristics
- Insulation Material: XHHW wire utilizes cross-linked polyethylene (XLPE) insulation. This thermosetting material undergoes a special process that creates a robust, three-dimensional molecular structure, making it stronger and more durable than traditional PVC insulation.
- Temperature Rating: Both standard XHHW and XHHW-2 variations boast an impressive maximum operating temperature of 90°C (194°F) in both dry and wet environments.
- Water Resistance: Thanks to its XLPE insulation, XHHW wire offers excellent moisture and water resistance. This makes it ideal for use in wet, humid, and even underground locations where other wire types might fail.
- Durability: The thicker XLPE insulation provides superior resistance to abrasion, chemicals, ozone, and tearing compared to PVC-insulated wires. This enhanced durability ensures a longer service life in harsh conditions.
- Flexibility: XHHW wire is more flexible than THHN wire. This improved flexibility can significantly ease installation in complex conduit and wiring projects.
- Safety: In the event of a fire, XLPE insulation typically produces less toxic smoke than PVC, contributing to safer environments, particularly in enclosed or public spaces.
- Cost: Due to its advanced material and enhanced performance, XHHW wire is generally more expensive than THHN wire.

Applications
XHHW wire is a preferred choice for rigorous applications where its resilience to challenging conditions is essential:
- Wet, Humid, and Underground Environments: Commonly used in conduits, raceways, and cable trays in damp or wet locations, and even for direct burial in some cases.
- Industrial Facilities: Ideal for demanding industrial settings like chemical plants, and oil and gas facilities, where resistance to chemicals, oils, and gasses is necessary.
- Outdoor Power Distribution: Suitable for power distribution in outdoor and wet areas due to its excellent moisture resistance.
- Heavy-Duty Industrial and Commercial Applications: Perfect for situations requiring high heat and moisture resistance for robust power delivery.
- Low Smoke, Halogen-Free Requirements: XHHW-2 wires suitable for sensitive areas such as public buildings, hospitals, and auditoriums where fire safety is paramount.
In essence, XHHW wire is built to perform reliably in environments where standard wires might not suffice, offering superior longevity and safety. If you need any XHHW XHHW-2 wires, please contact us via email: sales@tindepowercable.com