Cable cleaning units

A cable cleaning unit comprising a chamber adapted to surround a section of the cable to be cleaned, a plurality of outlets located within the chamber through which jets of high pressure fluid are directed onto the surface of the cable, said outlets being arranged so that said jets strike the surface of the cable at an angle inclined to the longitudinal axis of the cable being cleaned and are deflected from the surface of the cable in the direction of travel of the cable cleaning unit, the portion of the chamber receiving the deflected jets being arcuate so as to direct the fluid with dirt and other matter entrained therein away from the surface of the cable, and means for withdrawing fluid from the chamber.