2-2-2-4 Aluminum Quad Dyke Wire. This is the one that I was checking at Home Depot for $1.47 per foot, to use as a Service, 40' from the meter/disconnect to the Mobile Home inside panel in conduit (the inspector allowed to bypass a pedestal and going directly ...) but the "electrician" at HD stated that it if for 90 amps.
I am embarrassed to recognize that my mind at 72 is going downhill and I become more easily confuse. My apologies for this.
Form the 2008 NEC
Table 310.16 75 Deg. C. shows an ampacity 0f 90 amps # 2 AWG Aluminum
This may very well be what the employee at HD was referring to.
Table 310.15(B)(6) Conductor Types and Sizes for 120/240-Volt, 3-Wire, Single-Phase Dwelling
Services and Feeders. Conductor Types RHH, RHW, RHW-2, THHN, THHW, THW, THW-2,
THWN, THWN-2, XHHW, XHHW-2, SE, USE, USE-2
For service or feeder rating has an allowance of 100 amps for 2AWG Aluminum