500kV Double Circuit Transmission Tower (Glass Insulator Type)
Three workers perform installation work on the top cross-arm of a 500kV double-circuit transmission tower, with long strings of blue-green glass insulators hanging from each cross-arm level. The clear blue sky with scattered cumulus clouds provides excellent visibility of the tower's structural details and conductor arrangement. Glass insulators offer easy self-breakdown detection and excellent arc resistance, widely used in EHV transmission lines.
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