If you have #16AWG's, all Class 1 circuits, according to 240.4(D)(2), the maximum rated overcurrent protective device allowed is 10 Amps but (1) below that states continuous loads cannot exceed 80%, which is 8 Amps. That's the general rule for ampacities of #16 AWG.
That rule is amended by Art 725. In 725.51(A), you dont have to derate the #16AWG's for your Class 1 circuits unless they carry more than 10% of the 10 Amps continuously, which would be 1Amp. So if you have 90 conductors each in a single conduit, Class 1 Remote Control and Signaling circuit conductors exposed to 40 Deg C ambient with TFFN insulation for example and all are carrying less than 1A, then: 10A x .091= 9.1Amps (adjustment for ambient temp). Each current carrying conductor in the conduit needs to be protected with a fuse or CB rated or set not more than 10A since 240.4(B) allows the next standard size CB