The cables are intended for the construction of local telecommunication networks, for laying in cable ducts and directly in the ground in areas with a low risk of mechanical damage. or two layers of uniform polyethylene (Xp), with a polyethylene coating with a moisture barrier (Xz), filled with (w), armored with varnished steel tapes (Ftl), with a polyethylene (x) or polyvinyl chloride cover (y).