What is the maximum operating temperature of type THHW in a dry location?

Type THHW conductors are typically rated for a maximum operating temperature of 90°C in a dry location. This rating allows for flexibility in application as it permits higher current-carrying capacities and reduced voltage drop, making these conductors suitable for a variety of installation situations, particularly in industrial and commercial applications. The higher temperature rating distinguishes THHW from other types of wire that may have lower temperature limits, which is significant when considering electrical load and safety standards in electrical installations.