Patent ID: 7814600

Claim:
A corrosion protection system for a stay cable construction, said stay cable construction including a multiplicity of tension members, each tension member comprising: parallel steel tensile elements, said tensile elements extending between a first anchorage and a second anchorage and comprising a first end and an opposite second end, the first end co-operating with the first anchorage and the second end co-operating with the second anchorage, the corrosion protection system including tensile elements which are not provided with a permanent corrosion protection during their fabrication, wherein the corrosion protection system further includes: a plurality of stay pipes, each stay pipe freely surrounding a tension member made up of tensile elements which are not provided with a permanent corrosion protection, a dehumidification device which produces dry air, said dry air having a predetermined average humidity rate, a plurality of dry air supply pipes adapted to supply the dry air from a dehumidification device to predetermined points, each of the predetermined points being situated on one of the first anchorage, the second anchorage, and the plurality of stay pipes, a ventilation device configured to push the dry air in the plurality of dry air supply pipes, and surveying, measuring, controlling and testing facilities wherein the first anchorage of each tension member is situated in a first anchorage guide, and the second anchorage of each tension member is situated in a second anchorage guide and wherein: each second anchorage guide is connected to a dry air supply pipe and to the stay pipe which surrounds the connected tension member, wherein the connections are achieved in such a manner that the air injected in the second anchorage guide can form a dry airflow along the tension member in the stay pipe, and each first anchorage guide is connected to a stay pipe which surrounds the tension member with which it is connected, and wherein the first anchorage guide includes a first dry air outlet, through which dry air can escape.