Solution For Transmission Line

Key points of installation:

The high voltage transmission tower is generally marked with high intensity obstruction lights type B.

They shall be located at three levels: at the top of the tower, at the lowest level of the catenary of the wires or cables and at approximately midway between these two levels.

Obstruction lights on the same tower should flash sequentially or flash simultaneously.

Aircraft warning spheres should be installed equally on overhead cables with the spacing not exceeding 30m.

Solar powered systems are often used as off-line power supplies for obstruction lights.

Design reference standards:

CAAC: MH5001-2021, MH/T6012-2015

ICAO: Annex 14 to the Convention on International Civil Aviation, Volume I-Ninth Edition, July 2022

FAA: AC150/5345-43J