Aerial maker ball is used for overhead transmission lines, in particular ultra-high voltage (500,000-kilovolt) transmission lines and cross-river transmission lines, striking aerial balloons (aerial warning ball) shall be provided on the lines to provide warning signs.
The feature of aerial maker ball
1, aerial marking ball (aviation warning ball) installed in the overhead tower of the lightning protection wire on the cable, the distance between each marked ball, not more than 30 meters, and other settings.
2, air flag ball (aviation warning ball) has white, orange,red colors, should be set to white.
3, involving a number of wires, cables and other occasions, aviation signs ball (aerial marker ball) should be set at not less than the highest mark of the overhead line at the height.
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