How to calculate underground pull box sizing.
Fiber optic pull box distance.
Determining the size of underground pull and junction boxes to meet nec 314 16 code standards is required to prevent damage to conductor insulation.
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Inspect the cable run to ensure there are no sharp bends or corners that exceed the minimum bend radius of the fiber.
In many runs if the pulling distance is short enough and the pathway straight enough fiber optic cable can be pulled by hand without the use of special equipment.
When installing optical cable what you don t know could really hurt you or damage your cable.
However first make sure the pull does not exceed the tensile loading limit established by the manufacturer for installation.
Never exceed the maximum pulling load rating.
Never directly pull on the fiber itself.
Familiarizing yourselfwith standard 301 is a smart step to avoid such problems up until a little over a year ago an installation standard for optical cable didn t exist.
If you are only planning to pull optical fiber cables a common industry practice is to place the handholes or pull boxes up to 450 m 1500 ft apart.
Om4 carries a 10gb up to 550 meters providing a distance upgrade to om3 similar to how om2 has the same speed but a greater maximum length than om1.
A new fiber optic installation standard.
Fiber optic cables have kevlar aramid yarn or a fiberglass rod as their strength member.
Om4 multimode fiber optic 550 meters.
You should pull on the fiber cable strength members only.
Ready to pull fiber optic pre terminated assemblies are a great solution for indoor indoor outdoor and outdoor runs and are available in singlemode and in multimode 62 5 125 om1 50 125 om2 and 50 125 om3 cable types.
Browse products like concrete cast pull boxes covers accessories and non metallic pull boxes to find the perfect item for any job or situation.
On long runs use proper lubricants and make sure they are compatible with the cable j.
Om3 multimode fiber optic 300 meters.
Calculating the correct size of pull box needed can be complicated so please feel free to contact us or call 800 767 1576 if you need assistance.
2 in many runs if the pulling distance is short enough and the pathway straight enough fiber optic cable can be pulled by hand without the use of special equipment.
