A type XHHW insulated conductor in a wet location application has a maximum generating temperature of what?

In the context of the National Electrical Code (NEC), type XHHW insulated conductors are designed for use in wet locations and are recognized for their higher insulation temperature ratings compared to other types of conductors. Specifically, XHHW conductor insulation has a maximum generating temperature of 90°C when operating continuously.

This temperature rating is significant for applications where the conductors might be subject to moisture, as it indicates the highest temperature these conductors can handle without risk of degrading the insulation. Understanding this temperature rating is crucial when planning electrical installations in wet environments, as it ensures safety and compliance with the NEC regulations regarding conductor insulation.

Choosing a conductor with the appropriate temperature rating is essential for preventing potential overheating and insulation failure, which could lead to electrical hazards. Therefore, the choice of a 90°C rating reflects the specifications needed for safe use of type XHHW conductors in wet locations.