| 摘要 |
Reinforced overhead multipurpose cable for outside telecommunications of Voice, Video, and Data Distribution (VVDD) type consisting of: a multipair construction core, electromagnetic shielding elements and external protection thermoplastic cover, characterized because it includes one or several externally placed metal or plastic supporting elements for cable self-support; a core integrated by insulated electrical conductors of 2 to 300 twisted pairs, formed with twisting closed lay lengths and reduced in the formation of said component pairs; a plastic tape helicoidally arranged; a tape wrapping the assembled core; said tape being of aluminum for electromagnetic shielding and an external insulating cover both for the core and the reinforcement element and optionally swellable powder not affecting the conductance or capacitance or resistance of the insulation. |
