Urban Areas: 25–40m spacing (concrete poles, 10–12m height)., steel lattice structures). Factors: Cable weight (kg/km) Ice loading. This section covers Agency requirements for fiber optic service entrance cables intended for aerial installation either by attachment to a support strand or by an integrated self-supporting arrangement, for underground application by placement in a duct, or for buried installations by trenching. 20 meters (65 feet) to provide coupling between the inner cable and interlocking armo components in a vertical installation. COC recommends using a fixed object with a large enough diameter to support the coils. As an example, one could use a short sectio f pipe/pvc and wrap the cable around the. To this end, overhead optical cable construction generally has the following eight steps. Choose the type of pole The basic pole height is 7m and the tip diameter is 150mm. The charter of the FOA was to promote professionalism in fiber optics through education, certification, and. Tensile Strength: Minimum 1,500N for short spans, up to 12,000N for long-distance ADSS cables. Temperature Range: -40°C to +80°C for outdoor durability. It defines a minimum leve e fiber optic cabling extends between buildings. Although the standard covers premises installations, many of the provisions included here ar SI/ NFPA 70, the National Electrical Code (NEC). It is the responsibility of users.