Voltage drop using new reference handbook for 3 phase NOT unity power factor

[Sparky Bill PE]

I don't see how this formula can be line-to-neutral voltage drop, when it doesn't even consider the length of cable run. 

 

[akyip]

I don't see how this formula can be line-to-neutral voltage drop, when it doesn't even consider the length of cable run. 

View attachment 19462

I recognize this formula from NEC Chapter 9 Table 9. This is from one of the small notes just under the end of Table 9. In the NEC, this formula uses the ohms per unit length values for R and X.

But here, the NCEES reference handbook calls R and X as ohmic values instead of ohms per unit length values... Don't know why they did that...