Fiber Optic Conduit Pull Boxes

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.

Fiber optic conduit pull boxes.

And always use a swivel pulling eye because pulling tension will cause twisting forces on the cable. A new fiber optic installation standard. This device locks onto and tightens around a cable as a tensile load is applied. 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.

Place pull and splice boxes as shown in the plans and at the following locations unless directed otherwise by engineer. At all major fiber optic cable and conduit junctions. Approximately every 2 500 feet for fiber optic cable applications in rural areas with any continuous section of straight conduit if no fiber optic cable splice is. 3 when additional mechanical force is needed for a pull use external pulling grips.

Pulling underground fiber optic cable. How to calculate underground pull box sizing. A simple way to avoid this is to tie a knot at the pulling end of small fiber optic cables. The number of 90 degree turns on a pull shall not exceed 6 for aerial cables and 4 for underground cable in conduit.

Leave enough cable at either end to reach the work area and closet terminating locations. Refine your search with our convenient filtering options at the top of the page. Browse products like concrete cast pull boxes covers accessories and non metallic pull boxes to find the perfect item for any job or situation. Amazon s choice for fiber conduit electriduct 1 4 split wire loom tubing polyethylene corrugated flexible conduit 0 25 inch id orange 100 feet 4 6 out of 5 stars 1 401.

Determining the size of underground pull and junction boxes to meet nec 314 16 code standards is required to prevent damage to conductor insulation. The load is applied to the strength members of the cable rather than the optical fiber. Installed and conduit size shall be as tabulated and shown on the plans. Conduit centerline shall be aligned within the pull box to facilitate fiber optic cable pulling.

Number of 90 degree turns. How to calculate underground pull box sizing. 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.