Ensure that pull and splice boxes house fiber optic cable without subjecting the cable to a bend radius less than 14 times the diameter of the cable.
Fiber cable pull box.
Otherwise the jacket may be stretched in the pull and the fiber can bunch up beneath the jacket when tension is released.
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At all major fiber optic cable and conduit.
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On long runs use proper lubricants and make sure they are compatible with the cable jacket.
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The most common damage is a broken fiber which is difficult to detect.
Lateral cable to be coiled in each pul box.
Never exceed the maximum pulling load rating.
You should pull on the fiber cable strength members only.
The basic approach to pulling fiber optic cable and copper cable is similar.
However optical fiber has a few idiosyncrasies.
Also use a tension meter to monitor the tension being applied to the cable during the pull.
A length of free cable shall be provided at each end of a cable pull.
The load must be applied to the strength bearing members of the cable.
After pulling fiber optic cable cut off approximately 10 feet of cable from the pulling end to remove any portion of the cable that may have been stretched or damaged during installation.
Placement and spacing place pull and splice boxes as shown in the plans and at the following locations unless directed otherwise by engineer.
Plastic wire ties shall not be allowed.
Caution shall be taken to coil the fiber cable per manufacturer s recommendations.
Fiber optic pull box.
The cables minimum bending radii shall not be violated.
The glass fiber within the cable is fragile and although the cable has been designed to protect the fiber it can be damaged more easily than a copper wire.
On really long runs pull from the middle out to both ends.
Fiber optic cable coils within pull boxes shall be tied to each cable rack.
Pull boxes shall be sized so that no cables in the box shall be tightly bent.
A simple way to avoid this is to tie a knot at the pulling end of small fiber optic cables.
13 pull box types as depicted on this project detail sheet shall not be installed in the asphalt or.