Please, stick to the **NFPA 79 Standard**, [Table 13.5.1][1], which specify the allowable ampacities for conductors with smaller sections (30 AWG to 10 AWG) than the NEC ampacities (14 AWG to 2000 kcmil). 

This standard rates **2A for 22 AWG**, 90 deg., single conductor.

And considering 8 carrying conductors inside a same cable, we should apply a 70% derating factor, with an estimate of **1.4A for 22 AWG**, 90 deg., 8 carrying conductors.

This could vary according specific manufacturer certifications.


  [1]: https://www.gore.com/IndustrialCableConfigurator/popup_hfr_wirespecs.html