Dielectric optical fiber cable having improved installation features

摘要

A telecommunication optical fiber cable and in particular a reduced diameter optical cable with improved installation features for use in the end part of an access telecommunication network. The optical fiber cable has a number of optical fibers; at least a core tube containing the optical fibers; a jacket surrounding the core tube; and at least one strength rod spaced from the central axis, the cable having a twisting stiffness G*J_p, wherein G is the elastic shear modulus; and J_p is the polar moment of inertia of a cable section, wherein the twisting stiffness G*J_p is lower than or equal to 0.10 Nm², preferably lower than or equal to 0.05 Nm², and more preferably lower than or equal to 0.02 Nm². The cable is profitably installable by a blown method.