What is the allowable ampacity of a 1-6 AWG, THHW copper conductor installed in a wet location?

The allowable ampacity of a 1-6 AWG, THHW copper conductor installed in a wet location is indeed 65 amps. This value derives from the National Electrical Code (NEC) which provides guidelines on the ampacity of conductors based on their size, insulation type, and installation conditions. For copper conductors of this size with THHW insulation, when exposed to wet locations, the NEC sets specific ampacity ratings to ensure safe and efficient operation.

It's essential to remember that ampacity can be affected by factors such as the conductor's installation method and surround conditions (like being in a conduit, exposed to air, etc.), but for a typical installation in a wet location, the standard rating is significantly established. Choosing a conductor with the correct ampacity is crucial for preventing overheating and potential electrical hazards. Although there are other ampacity values for different configurations and sizes, 65 amps represents the safe operational limit for a 1-6 AWG THHW copper conductor in wet conditions, aligning with recognized electrical standards.