What type of conductor is moisture- and heat-resistant?

Type XHHW conductors are designed to withstand moisture and heat, making them suitable for a variety of demanding environments. These conductors have a cross-linked polyethylene (XLP) insulation that not only provides excellent resistance to heat (up to 90 degrees Celsius in wet locations) but also demonstrates superior moisture resistance, which helps prevent the deterioration that can occur from exposure to water or humidity.

This characteristic makes Type XHHW particularly effective for applications where conductors might be exposed to harsh conditions, such as in underground installations or for use in industrial settings where the environment is not climate-controlled. Other types, while they may have their own uses, do not offer the same level of heat and moisture resistance as Type XHHW.