Loops of cable commonly called service loops shall be provided at all.
Pull boxes for fiber optic cable.
During the process installers should avoid cable damage despoiling the fiber properly and take pulling force into account.
The most common damage is a broken fiber which is difficult to detect.
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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.
Since the real fiber pulling environment could be more complex the recommended procedures we offered above is a simple.
Pulling underground fiber optic cable.
Number of 90 degree turns.
Boxes used with optical cables shall be designed for the purpose and shall be equipped with cable supports.
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.
A length of free cable shall be provided at each end of a cable pull.
5 use a swivel when pulling to make sure twists in the pull rope are not translated to the fiber optic cable.
Suggested distance between pull boxes.
Also use a tensionmeter to monitor the tension being applied to the cable during the pull.
Then position the pulling grip over the cable core and tape it in place.
However optical fiber has a few idiosyncrasies.
Special fiber optic blocks should be used on all turns or angles.
These are runs of 1 pvc going more like 375 feet to a pull box and then continues from there.
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.
Placement and spacing place pull and splice boxes as shown in the plans and at the following locations unless directed otherwise by engineer.
Pull boxes for fiber are usually much larger than for wire.
Pull boxes shall be sized so that no cables in the box shall be tightly bent.
Suggested distance between pull boxes.
The voltage drop requires a wire size of 4.
Pulling fiber optic cable is a dispensable and rather important part in fiber cable installation.
It has do with safe bending radiuses and space to handle the fiber.
Browse products like concrete cast pull boxes covers accessories and non metallic pull boxes to find the perfect item for any job or situation.
The basic approach to pulling fiber optic cable and copper cable is similar.
I think lb are a serious no no.
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