Can I use the 90ºC column if I'm using RHW-2/USE-2 for a commercial service? If so, then 100A Commercial service may use #2 Al RHW-2 Conductors?

My AHJ thinks so, but I thought we were limited to the 75ºC Column for services?

(Do to terminal temp ratings?)

[Linked Image]

(Still not gonna use the Mission Impossible guy yet... Just call me chicken!)


-Virgil
Residential/Commercial Inspector
5 Star Inspections
Member IAEI