DRAINAGE SYSTEM FOR ELECTRIC MACHINES, AND ELECTRIC MACHINES COMPRISING SAME

The present invention discloses a drainage system offering a high degree of protection at a low cost, which can be used in closed electric machines, and an electric machine using the drainage system, and comprising an envelope provided with: - a drainage body (1) that has an approximately cylindrical shape or can have other geometrical shapes, made of a water-proof material and provided with one or more openings (3) in said body (1), so as to form one or more inner and transverse channels (7) coupled to the drainage opening (8) of the envelope (2), in communication with the inside (A) of the envelope (2) and with the outside (B) of the envelope (2); - a plurality of transverse filaments (4) is arranged in the opening(s) (3), extending longitudinally through the channel(s) (7), it being possible for the filaments (4) to be longer than the drainage body (1).