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Remove adjacent paving materials which were damaged as a result of excavation;
Fulfill the cleaning conditions required by local authority and other concerned
authorities.
III.3.6: Trenching Guidance
During the installation in trench the following should be obeyed
a. Fiber optic cables shall be laid in trenches;
Trenches along road networks shall be sufficiently deep to provide appropriate fiber
cable protection and shall be placed at least 1.5m away from the edge of pedestrian
walkways or storm drainages along paved roads. In case of unavailability of the
required clearance distance due to the soil or terrain condition; the special request for
shorter clearance shall be sent to the Regulatory Authority, who will assess and
provide the feedback based on case specifications;
b. In the absence of pedestrian walkways, the cable must be located at a minimum
distance of 2.5 meters off the roadway. In case of unavailability of the required
clearance distance due to the soil or terrain condition; the special request for shorter
clearance shall be sent to the Regulatory Authority, who will assess and provide the
feedback based on case specifications;
c. Road surfaces where cable crossings have been installed shall be restored to its
original state in compliance with local authorities and other concerned authorities
specifications;
d. No cable installation will be permitted in a ditch line. Cable installations will be
permitted along the back of the ditch line only;
e. Where there are cable crossings along roads, ducting shall be of galvanized steel pipes
buried deep enough (1m or more) for protection from vehicular or pedestrian traffic
stresses. Similar galvanized steel pipe ducts shall be used at bridge crossings.
III.3.7:Trenchless Techniques
Trenchless techniques shall be used to reduce environmental damage, social costs and
provide an economic alternative to open-trench methods of installation.
Trenchless or no-dig technique used for long section FOC installation should be divided into
shorter sections of the work length accordingly to the characteristics of the machines and the
design requirements.
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