In a method for arranging a plurality of wires in a pipe, length of a each wire is determined in accordance with locations a plurality of holes on a surface of the pipe, and each of the plurality of wires on a lead stick is fastened in accordance with the locations of the plurality of holes on the surface of the pipe. Ends of the wires are perpendicularly connected to the surface of the lead stick. The lead stick are inserted into the pipe, and the ends of the plurality of wires are extended from the plurality of holes.