There are very few bends to add tension. The conduit is properly placed.
Lubrication is optimized.
Fiber Cables are Unique Not all pulling lubricants can produce such low coefficients of friction in fiber installation. A number of unique lubricant requirements have been discovered that are especially important for fiber pulling. To understand why these lubricant properties are important, we must first look at the unique character of fiber cable itself. Fiber cable is lightweight, much lighter than copper conductor cable. Thus, the fiber cable isn't squeezing or pressing on the lubricant as hard as copper cable would.