For indoor fiber optic cables, the maximum pulling distance typically ranges from 100 to 200 meters. The shorter distance accounts for the lower tensile strength and the need for gentle handling to avoid damage to the delicate fibers. Understanding these factors is crucial for planning and executing a successful installation. Cable Type Different types of fiber optic cables have. The following formulas may be used to determine general guidelines for installing Corning Optical Communications' fiber optic cable; however, refer to the cable specification sheet for the listed minimum bend radius: NOTE: Corning® RocketRibbonTM extreme-density cable (1728- and 3456-fiber) exceeds. A pull box is an underground enclosure installed within a conduit system that provides access for pulling, routing, and managing conductors and cables. Pull boxes reduce the friction and tension that build up during long cable pulls, break complex conduit runs into manageable segments, and give. f pull boxes used in CFX's ITS infrastructure, which differ in material, size, shape, and intended use. Most pull boxes installed on CFX's system are made of composite materials and have an open bottom desi n allowing underground conduits to enter into the box from the bottom and to provide a means. When pulling long lengths of cable in conduit or innerduct (up to approximately 3 miles or 5 kilometers in the outside plant, hundreds of meters in premises cabling), use proper lubricants and make sure they are compatible with the cable jacket.