| 摘要 |
<p>The system is based upon the arrangement of a number of modular polymerised concrete prefabricated elements for ducting and guiding the cabling that feeds the beaconing signals arranged at airport runways. The system consists of a number of furrowed plates (2) axially and laterally coupled to each other, with the cables (3) arranged in their furrows, to cover the required stretch, in which a number of boxes (1) and (1') are arranged at a certain distance, housing therein electric transformers (5) that are connected to the cables (3). Furrowed plates (2) are arranged on one of the sides of the boxes (1) and (1') with transformers (5), resting on cable racks (4); recessed or easily torn portions (18) having been provided at the bases of the furrowed plates (2), when certain cables (3) need to be connected to the transformers (5), leading into the cable racks (4) and from these to the transformers (5) lying within the boxes (1) and (1'). <IMAGE> <IMAGE></p> |
