Are the R,L,C specifications for a cable to be taken as the lumped circuit model paramters, or can I use the dimensions to actually calculate the cable's total R,L, and C? Say a cable has a specification of "capacitance = 10pF/m", then is it safe to say that if I have 10 meters of the cable, its total capacitance is 100pF? If I take a capacitance meter and put it on the inner and outter conductors of the cable, will it read, ideally, 100pF? Or is this spec only meant to be used in the transmission line equations for calculating characteristic impedance? Or is the spec valid for both?