What are the colored balls on powerlines called | What is its Function, Size, Weight and colours

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Why are there colored balls on power lines. What they are called. What are there function, size, Weight and colours.

Marker balls Size weight colours functions

AJAZ UL HAQ Changed status to publish November 29, 2023
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The colored balls on the power lines are called marker balls. They are installed on the power lines to make the power lines noticeable (mainly during low visibility) to low flying aircrafts. The size of these balls vary from diameter of 520mm to 950mm. the weight of these balls is 7.7kgs. the colours used are Red, Yellow, Orange and white.

 

AJAZ UL HAQ Changed status to publish November 29, 2023
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