Used by electric utilities on transmission lines with the voltage of 35 kV and higher for creating optical communication lines and protecting the power lines from lightning strikes.
Applied for aerial installation on distribution and power transmission lines for building long distance optical communication systems.
Used for distributed fiber optic sensing in different applications.
Used for indoor and outdoor applications where fire resistance is a must. Remain functional under direct flame for at least 180 minutes.
Applied in ducts, conduits and trays with no risk of rodent attacks. Can also be lashed.
Designed for high reliability in harsh environments with potential mechanical impact. Applied in all ground types, swamps, and harsh rivers.
Designed for air blowing in ducts and microducts for building reliable underground communication networks.
Designed for underwater application with increased crush and tensile loads.
InAir Figure 8
Used for cost-effective one-step aerial installation mostly in rural areas where the spans between poles are not long .
Applied in substations for control purposes.
Used to create communication lines between the common distribution box and a location inside the building (including vertical runs), between entrances or corridors in office buildings.
Applied for aerial installation on transmission towers, lightning poles, between buildings and structures for communication networks in rural areas.
An overhead fiber optic cable with an external strength member is used for cost-effective building aerial communication systems mostly in rural areas, where towers are located close to each other. Unlike all-dielectric self-supporting cables, where the strength member is placed in the core of the design, in Figure 8 cables the strength element is placed outside the core. The cross-section of this cable type is 8-shaped: the upper part is the suspension element, the lower one is the core with the fiber.
Cables with an external strength member are easier to install. Special clamps hold the cable by the external member, so the risk of damaging the loose tubes with fibers inside is relatively low. However, they have certain limitations related to the maximum permissible tensile load.
InAir Figure 8 cables are intended for multi-purpose outdoor installation. The typical type of installation is aerial fiber optic cable installation between poles and buildings, though these cables can also be pulled into underground ducts and sewer pipes and installed into indoor/outdoor cable conduits and trays.
Incab manufactures 4 types of InAir Figure 8 fiber optic cables:
InAir Figure 8 GSW — is a multi-tube design with a galvanized steel wire as an external strength member
InAir Figure 8 FRP — is a multi-tube design with a fiberglass rod as an external strength member
InAir Figure 8 CT GSW — is a central tube design with a galvanized steel wire as an external strength member
InAir Figure 8 CT FRP — is a central tube design with a fiberglass rod as an external strength member
Also check how InAir Figure 8 cables can be deployed as part of FTTH system.
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