Fiber Optic Conduit Pull Boxes

The number of 90 degree turns on a pull shall not exceed 6 for aerial cables and 4 for underground cable in conduit.

Fiber optic conduit pull boxes. 3 when additional mechanical force is needed for a pull use external pulling grips. The load is applied to the strength members of the cable rather than the optical fiber. 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. 4 main backbone and lateral fiber cable conduit if installation includes multiple runs of conduit pull rope shall be installed in each individual conduit.

Place pull and splice boxes as shown in the plans and at the following locations unless directed otherwise by engineer. And always use a swivel pulling eye because pulling tension will cause twisting forces on the cable. 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.

Browse products like concrete cast pull boxes covers accessories and non metallic pull boxes to find the perfect item for any job or situation. A new fiber optic installation standard. 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.

Special fiber optic blocks should be used on all turns or angles. How to calculate underground pull box sizing. Refine your search with our convenient filtering options at the top of the page. 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.

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. Installed and conduit size shall be as tabulated and shown on the plans. Pulling underground fiber optic cable. When installing optical cable what you don t know could really hurt you or damage your cable.

Leave enough cable at either end to reach the work area and closet terminating locations. Number of 90 degree turns. 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.