These pipes are fitted to install light cables into communication channels and are produced in 3 and 4 plies. They are black high density polyethylene (HDPE) pipes, and should be packed in the length of 255 m, dia. 120 cm, using winding m/cs in a fully circular form.
In addition to being an electrical insulator, the sub-duct has high fracture resistance, high bending and also in case of cracking, cracks spread slowly in it, it is easy to carry and install, it has a very high durability and is one of the most important features. Polyethylene subductors are fire retardants.