
Duct banks are systems made up of pipe bundles, usually plastic and buried, through which various types of cables (fibre optics, power lines, telecommunications, etc.) are fed. Depending on the number of pipes and the distance to be covered, duct banks can be very large, with inspection chambers located several kilometres apart. These systems serve to protect the cables inside them against mechanical stresses and moisture, thus preventing potential oxidation damage. However, in traditional installations it is difficult to ensure a watertight seal between the duct bank and the inspection chamber, which can lead to water seepage and, in the most severe cases, the flooding of the chambers themselves. In such situations, the only solution is to pump out the water, which can be extremely expensive. The Polimask system – designed in combination with PPEcoforte pipes – has been developed to solve this problem. It is available in two versions: Polimask 110 and Polimask 160.
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