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 optic cable pull box.
2e how to handle slack.
Refine your search with our convenient filtering options at the top of the page.
When pulling cable out from a conduit or ceiling it will become necessary to coil up the cable in preparation to pull it in another direction.
Browse products like concrete cast pull boxes covers accessories and non metallic pull boxes to find the perfect item for any job or situation.
5 use a swivel when pulling to make sure twists in the pull rope are not translated to the fiber optic cable.
A length of free cable shall be provided at each end of a cable pull.
During the process installers should avoid cable damage despoiling the fiber properly and take pulling force into account.
Loops of cable commonly called service loops shall be provided at all.
Fiber optic pull box polycrete features 10k or 20k polymer concrete is lighter than traditional precast concrete but offers higher compressive strength for increased durability.
Number of 90 degree turns.
Boxes used with optical cables shall be designed for the purpose and shall be equipped with cable supports.
Also use a tensionmeter to monitor the tension being applied to the cable during the pull.
Pulling fiber optic cable is a dispensable and rather important part in fiber cable installation.
Fiber optic cable has a memory.
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.
The most common damage is a broken fiber which is difficult to detect.
2d do make every effort to pull cables from a conduit in as straight an angle as possible.
Pull boxes shall be sized so that no cables in the box shall be tightly bent.
Since the real fiber pulling environment could be more complex the recommended procedures we offered above is a simple.
Placement and spacing place pull and splice boxes as shown in the plans and at the following locations unless directed otherwise by engineer.
Pulling on an angle can cause damage to the cable.
And always use a swivel pulling eye because pulling tension will cause twisting forces on the cable.
The basic approach to pulling fiber optic cable and copper cable is similar.
However optical fiber has a few idiosyncrasies.
The number of 90 degree turns on a pull shall not exceed 6 for aerial cables and 4 for underground cable in conduit.