Patent ID: 6371691
Filing Date: 2002-04-16
Classification: E02F,G02B,H02G

Abstract:
A process for introducing an optical cable, consisting of a tube and optical waveguides introduced therein, into solid ground with the aid of a laying unit, characterized in that the optical cable laid is a microcable or minicable (1) with an external diameter of the tube (8) of 2.0 to 10 mm, the tube (a) being homogeneous and pressurized-water-tight, wherein the process comprises cutting a laying channel (19) with a width of 4.5 to 12 mm which is adapted to the diameter of the microcable or minicable (1) in the fixed underlying laying surface (17) using the laying unit (23), introducing the microcable or minicable (1) into the laying channel (19) by means of a feed element such that the microcable or minicable is held at a constant laying depth, and filling the laying channel (19) with filling material (20) with a filling device (16) following the insertion of the microcable or minicable (1), wherein filling the laying channel comprises at least partially filling the laying channel with a water-resistant material that is different than the material removed to form the laying channel to thereby protect the optical cable from water intrusion.