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The Ameralik Span is the longest span of an electrical overhead power line in the world. It is situated near Nuuk on Greenland and crosses Ameralik fjord with a span width of 5,376 m (17,638 ft) at 64°6′18″N 51°14′16″W / 64.10500°N 51.23778°W / 64.10500; -51.
An overhead power line is a structure used in electric power transmission and distribution to transmit electrical energy along large distances. It consists of one or more conductors (commonly multiples of three) suspended by towers or poles .
Aerial bundled cables (also aerial bundled conductors or simply ABC) are overhead power lines using several insulated phase conductors bundled tightly together, usually with a bare neutral conductor. This contrasts with the traditional practice of using uninsulated conductors separated by air gaps.
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Mickey Pylon. The Mickey pylon (also known as the Mickey Mouse pylon) is a 105-foot-tall (32 m) double-deadend pole-type 230-kV power line pylon in front of Osceola Substation, which is used by The Walt Disney Company division Reedy Creek Energy Services for the power supply of Walt Disney World near Orlando, Florida, and which was completed on February 15, 1996.
The 735 kV power line is said to lessen the environmental impact of power lines, as one single power line operating at this voltage carries the same amount of electric power as four 315 kV power lines, which would require a right-of-way wider than the 80.0–91.5 metres (262.5–300.2 ft) [29] [30] width required for a single 735 kV line.
Additionally, the company said its distribution lines to the west of Eaton Canyon "were de-energized well before the reported start time of the fire" as part of its fire safety shut-off program.
Corona discharges on the 380kV overhead power line over the Albula Pass (Switzerland) in foggy weather conditions (30 second long exposure) Coronas can generate audible and radio-frequency noise, particularly near electric power transmission lines. Therefore, power transmission equipment is designed to minimize the formation of corona discharge.