The marking balls are placed on high voltage cables near mountain passes, in valleys, near major highway crossings and around airports. Their purpose is to make the cables visible on the aircraft. Helicopters and small aircraft often fly low on mountain passes or highways, and usually when approaching the airport.

2 Comments

1. Kari says:

   30/09/2021 at 12:57

   Great job I myself am a metal frame fitter and a helicopter fan I spend my ppl I'm looking for a place to work please give me a boost

   

   

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2. Roberto rivera says:

   07/08/2021 at 01:20

   Hello, what size are they, how much do they weigh and what material are they? ,son rojas o anaranjadas y como se.les conoce muchas gracias san José Costa rica …cerca del aeropuerto tobias bolaños en pavas

   

   

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