72-core optical cable thickness

The diameter of a 72-core optical fiber cable typically ranges from 8.2 mm to around 15 mm, depending on the cable design and construction.Typical Cable Constructions and DiametersSlimCORE™ 72F Indoor Cable: This indoor, subunitized 72-fiber cable has an outer diameter of 8.2 mm and a nominal weight of 65 kg/km, designed for high-density European environments and cable tray installations (ScaleFibre Europe) .GCCOBF72 Armored Outdoor Cable: A multi loose-tube armored cable with six gel-free tubes of 1.9 mm diameter each, corrugated steel tape armor, and LSZH jacket. The overall diameter is larger than indoor cables due to the armor and strength members, typically around 14–15 mm (Belden) .Metal-Free Outdoor LSZH Cable: A 72-core loose tube cable with aramid yarn strength members and LSZH jacket, designed for outdoor use. Its diameter is generally slightly smaller than armored cables, often in the 12–13 mm range (SABA Cable) .Factors Affecting Cable ThicknessCable Type: Indoor cables are usually thinner due to the absence of armor and smaller subunit construction. Outdoor armored cables are thicker to provide rodent protection and mechanical strength.Subunit Arrangement: 72 fibers are often organized in six 12-fiber subunits or tubes. The number and diameter of these tubes influence the overall cable diameter.Strength Members and Jacket: Steel or aramid yarns, corrugated armor, and LSZH or polyethylene jackets add to the cable thickness.Installation Environment: Direct burial, duct, or aerial installation requirements can dictate additional protective layers, increasing diameter.SummaryFor a 72-core optical fiber cable, the outer diameter typically ranges from 8.2 mm for compact indoor cables to 15 mm for armored outdoor cables. When planning installation, it is important to check the specific cable datasheet for the exact diameter, as it varies with construction, armor, and jacket type .