Items and Installations of warning systems for overhead line projects, in the restricted areas and where required by the employer, warning spheres and obstacle lights shall be fitted on the earthwires of transmission lines and aviation warning lights on the towers. The towers shall also be painted red and white.



 Items and Installations of warning systems for overhead line projects, in the restricted areas and where required by the employer, warning spheres and obstacle lights shall be fitted on the earthwires of transmission lines and aviation warning lights on the towers. The towers shall also be painted red and white.

* Tower Obstruction Lighting complete including independent solar power supply according to ICAO regulations, used to indicate the presence of a tower supporting overhead wires. And it is usually located at three levels: at the top of the tower; at the lowest level of the centenary of the wires or cables; at approximately midway between these two levels.
* Aerial Warning Markers (Spehers) and Fittings on Earthwire complete with all fittings, red and white or international orange in accordance with Civil Aviation Authority Requirements

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