What are the environmental requirements for the use of overhead optical cables? Aerial optical cable is an optical cable hung on a pole.
The overhead optical cable laying method can use the original overhead open wire poles to save construction costs and shorten the construction period.
Aerial optical cables are hung on poles and must be able to adapt to various natural environments.
Generally used for long-distance second-level or lower-level lines, suitable for dedicated network optical cable lines or some local special areas.
Usage environment: The distance between poles of overhead lines is 25~40 meters in urban areas, 40~50 meters in suburbs, and the maximum in other areas does not exceed 67 meters.
The hanging wire of the overhead optical cable should be made of 7/2.2mm galvanized steel strands. For hanging light armored optical cables, 7/2.0mm or /1.8mm steel strands can be used.
The sag of the aerial optical cable should consider the elongation produced when the maximum load is applied during and after erection.
Aerial optical cables can be appropriately extended and retracted on the poles.
The poles should be erected according to the design requirements, and the suspension wires should be placed or the original pole path should be used for renovation to meet the specified requirements.
The spacing between optical cable hooks is required to be 50 cm and the allowable deviation shall not be greater than ±3 cm.
The optical cables should be hung evenly, the hook pallets should be complete, and hook models of different sizes should be selected for the outer diameters of various optical cables.
