A system for determining the locations of faults on a cable by determining the positions of transformers is described. The coil contains at least one pair of loops of conductors, which are non-symmetrically positioned to each other and the conductors overlap each other so that the inductor has double conductors across the object to be heated and a single conductor parallel to the object to be heated at the edges. At least one pn-type junction is formed essentially along the entire, preferably longest, extension of the n-type layer and the p-type layer and, thus, essentially along the entire boundary layer thereof. According to an embodiment of the invention, the terminal performs cell reselection by using the dedicated priority list obtained from the first system so as to free the second system from establishing the dedicated priority list. The cleaning air flows out of the tubular member through the first intermediate vent, the second intermediate vent and the second lower vent to spread inside the boot.