In table 310.104A it talks about the differences in conductor insulation. What is the main difference Between XHHW and XHHW-2 , XhhW-2 max operating temp is 90degreeC but it should still be able to be used for 75 degree C terminal ratings.
why does XHHW give the two temperature rattings? Thanks
why does XHHW give the two temperature rattings? Thanks