Title :
The installation of conventional fiber-optic cables in conduits using the viscous flow of air
Author :
Griffioen, Willem
Author_Institution :
Dr. Neher Lab. of the Netherlands PTT, Leidschendam, Netherlands
fDate :
2/1/1989 12:00:00 AM
Abstract :
A technique using air to push fiber-optic cables makes it possible to install them in cheap HDPE (high-density polyethylene) ducts with an inner diameter of 26 mm, in spite of the tortuosity of the latter. An estimation of a convenient cable stiffness, based on conduit geometry and cable properties, is derived. When one installation unit (cablejet) is used, cables with a maximum length of 800 m can be installed with speeds up to 60 m/min. Even 36 right-angles curves in the conduit do not prevent the cable from going on. In less than one hour, 2000 m can be installed using the cablejets in cascade. So far, more than 150 km of fiber-optic cable have been installed in the public network in the Netherlands using the described method, resulting in considerable saving of time and labor
Keywords :
optical cables; optical fibres; 26 mm; HDPE; air; cable stiffness; conduits; fiber-optic cables; high-density polyethylene; viscous flow; Bars; Buildings; Circuit testing; Drag; Equations; Friction; Geometry; Optical fiber cables; Polyethylene;
Journal_Title :
Lightwave Technology, Journal of
