XHHW wires utilize XLPE cross-linked polyethylene insulation, which boasts exceptional dielectric strength and chemical resistance, maintaining stable performance in harsh industrial environments characterized by high temperatures, high humidity, or corrosive gases. They operate stably for extended periods in dry or humid environments up to 90°C and withstand short-term temperatures up to 125°C, demonstrating excellent heat resistance. Furthermore, XHHW wires exhibit significant moisture and mildew resistance, maintaining good insulation even in coastal areas or underground installations. They also possess high mechanical strength and abrasion resistance, resisting the effects of tension, bending, and mechanical vibration, which is ideal for heavy-duty or high-intensity industrial applications.

THWN/THWN-2 wires are widely used in industrial applications, have become the mainstream choice for industrial power distribution and control systems due to their excellent heat resistance, moisture resistance, and chemical resistance.

THHN wires, besides their common use in construction, are also frequently used in industrial electrical systems. Featuring a thermoplastic insulation layer and a nylon outer sheath, they can withstand high temperatures, high abrasion, and chemically corrosive environments. Their rated temperature typically reaches 90°C (dry environment), and they possess excellent electrical insulation properties and mechanical strength.