Underground Optical Fibre Cables

LOOSETUBE OPTICAL CABLE
(For Duct or Direct Buried Applications)

Cable Description:
Cable are designed for Duct / Direct Burial applications containing up to 144 optical fibres in water blocked loose tubes (Maximum 12 fibres per tube) and solid polyethylene fillers laid-up around a fibre reinforced plastic (FRP) central strength member, water blocked interstices, taped, polyethylene overall sheathed. Corrugated Steel tape armouring is provided for Armoured Cables.


Fibre Specifications: As per ITU-T G652B / G652C / G652D / G655


Construction details: Multiloose Tube Cables (2F -144F)
Number of elements (2F to 72F) 6 Nos
(144F ) 8 Nos
Tube/Fibre identification Colour coded
Central strength member Fibre Reinforced Plastic (FRP)
Fibre protection (tubes) Polybutylene Terephthalate (PBT)
Fillers As required
Water blocking Thixotropic gel (tubes)
Water Blocking Jelly (interstices)
Core wrapping Polyester tape
Armour Corrugated Steel Tape Armoured Cables
* Option available for Unarmoured Cables with or without PA-12 jacket
** Option of Ribbon Cables available for high fibre count
Construction for 24F Armoured Cable

Construction details: Unitube Cables ( 2F -24F)
Number of Fibres per tube 24 Nos
Fibre identification Colour coded
Strength member FRP rod / Steel Wire embedded in Sheath
Fibre protection (tubes) Polybutylene Terephthalate (PBT)
Water blocking Thixotropic Gel (tubes)
Water Swellable Tape
Sheath Polyethylene
* Option available for Unarmoured Cables with PA-12 jacket and Corrugated Steel Tape Armoured Cables.
Construction for 24F Unitube Unarmoured Cable


Specifications : IEC 60794 for Mechanical & Environmental testing