Laying network cables in sewers

摘要

A cable guide includes an upper face and a lower face. The lower face has a generally convex form so as to lie in contact with the flow channel when fitted in the flow channel. The upper face has a generally concave form and is shaped to minimize disturbance of the flow when fitted in the flow channel. A passage is defined between the lower face and the flow channel having an entrance opening at a first end of the cable guide and exit openings on the sides of the cable guide towards a second end. By utilizing a cable guide, disruption to the flow within the channel by the entrance or exit of the cable is minimized.

主权项

1. A cable guide, suitable for use in a flow channel of a sewer without substantially impeding a flow therein, the cable guide comprising:
an upper face that provides a boundary to the flow channel and is shaped to minimize disturbance of the flow; and a lower face adapted to lie in contact with walls of the flow channel wherein the lower face is generally downwardly convex; one or more substantially contiguous recesses defined on the lower face, with each recess being generally upwardly concave, each recess having at least one vane to subdivide the respective recess; one or more minor vanes projecting downwardly from a surface of the lower face; the cable guide being configured so that when the lower face lies in contact with the walls of the flow channel the walls of the flow channel and the one or more substantially contiguous recesses are in spaced apart relation so they together define therebetween one or more passageways suitable for carrying a cable from one edge of the cable guide to another edge, wherein contact between the lower face and the walls of the flow channel is made by a respective lower end of the one or more downwardly projecting minor vanes.