Let’s find out together what these devices, which you probably think are “current balancing”, but are not actually used for this purpose, what they are used for and what material they are made of.
The name of these devices that look like a poke-ball “warning globes”is It is usually seen near airports because it is placed on electrical wires to warn vehicles such as low-flying aircraft, helicopters.
They are also used in electrical wires passing over rivers, lakes, fjords, valleys, roads, railways, construction sites and pipelines. Moreover your military bases and near police stations.
Warning spheres, consisting of two hemispheres, are UV and ozone resistant materials.
It is connected to the air-going conductor with two bolt clamps. Thanks to the special installation mechanism by a single line technician can be easily placed on the conductor. Thanks to the design of the clamp structure, the deformation caused by the tightening of the bolts is prevented.
It is made of polyethylene. jaws from aluminum Since it is made and contains grooved channels, situations such as slipping never occur. Drainage holes in the sphere prevent the accumulation of rain in the sphere.
Color selection is very important in the warning spheres, which make high voltage lines easy to see.
In the area where the sphere is placed to the color of the background attention should be paid. Generally, colors such as white, red, orange are preferred. A contrast must be maintained between the background and the warning spheres. Sometimes the colors can be changed according to the seasons.
The place where they are installed is the lightning protection ground of the tower. hanging rope. The diameter of the spheres is usually 600 mm, the distance between them is 30 m. The distance increases with the size of the diameter.
Since it is very difficult to see high voltage lines, especially in foggy and cloudy weather, helicopter accidents have been prevented thanks to these red-white balls. But in the world generally high voltage line LED warning lamps available. They are much more visible than spheres, especially at night.
Sources: Electric Port, RM Electric
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