The electrical transport of single crystal whiskers of the 2:2:1:2 pha
se of Bismuth Strontium Calcium Copper Oxide (BSCCO), and of very smal
l transverse dimensions, has been studied as a function of temperature
and magnetic field. Over a very wide range of magnetic fields the cur
rent voltage characteristics obey a simple but powerful scaling relati
onship. This scaling has made possible a very detailed study of the si
milarities between that data and the predictions of the thermally acti
vated flux creep (TAFC) model of Kim and Anderson. At lower fields and
currents the temperature and magnetic field dependence of the barrier
height displays typical behaviour for that class of model, but the fl
ux-bundle parameters deduced are temperature dependent. At high fields
and high currents the observed behaviour differs very significantly f
rom the TAFC prediction.