Characteristics : Co-efficient of friction – max 0.344 external surface of sub-duct with PVC main duct – max 0.056 internal surface of sub-duct against rope – max 0.08 internal surface of sub-duct against cable.
Advantages : Reduction of stress on cable during installation, Installation of Longer lengths made feasible, Negotiations of cable movement through bends and deflections are easier. Reduction of number of joints and minimizes number of splices, Faster and easy installation of cable with lesser man power, Reduction of overall cost of installation, maintenance and future upgrades, Retains it’s Properties throughout it’s life, Existing cables can be deployed after de-blowing from the duct, This does not have toxic and Derma tic hazards and is safe handling.
