We will be performing upgrades on the forums and server over the weekend. The forums may be unavailable multiple times for up to an hour each. Thank you for your patience and understanding as we work to make the forums even better.
Box fill applies to chapter 3 methods unless specified so, no. 314.16(B)1 only goes to 18awg so there would be no volume allowance to calculate box fill with something like UTP cat 5/6. There are raceway fill issues if medium powered.