Visual Aids for Denoting Transmission Lines and Transmission Line Structures for the Safety of Air Crafts. For the safety requirement of low flying military aircrafts, all the transmission lines and transmission line structures falling within the safety zone of air field and air to ground firing ranges shall meet the requirements of the local authority.

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Visual Aids for Denoting Transmission Lines and Transmission Line Structures for the Safety of Air Crafts.

For the safety requirement of low flying military aircrafts, all the transmission lines and transmission line structures falling within the safety zone of air field and air to ground firing ranges shall meet the requirements of the local authority.

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