Transport AC loss in a 5/2 YBCO Roebel cable (five 2 mm wide strands) with a pitchlength of 90 mm is measured over a range of frequencies from 59 to 354 Hz. Five rectangularvoltage loops are arranged from pairs of voltage taps attached at one pitch lengthseparation on each strand. There are significant differences in the apparent transport ACloss measured from the different voltage loops at low frequency due to phase shifts in thecurrent in each strand with respect to the phase of the total cable current. The difference intransport AC losses measured from different voltage loops becomes small with increasingfrequency, because current is more equally distributed in each strand due to the higherreactance at high frequency. At 354 Hz, results measured with different voltageloops agree well with each other. As theoretically expected, the transport AClosses at different frequencies calculated from the mean value of in-phase voltagesmeasured from the five different voltage loops agree well with each other. AtIt/Ic = 0.85, the transport AC loss in the 5/2 Roebel cable normalized by the number ofstrands and square of critical current per strand is around 2.9 times that in a singlestrand compared to the prediction of five times for a close bundle composed offive conductors. This difference may be due to the transposition of the strands.