Kita-Iwaki powerline

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Kita-Iwaki Powerline
Location
Country Japan
Coordinates Lua error in Module:Coordinates at line 668: callParserFunction: function "#coordinates" was not found.
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From Minami-Iwaki switch
To Higashi-Yamanashi substation
Construction information
Commissioned 1999
Technical information
Total length 240 km (150 mi)
AC Voltage 500 kV
Number of circuits 2

The Kita-Iwaki Powerline is the largest double-circuit powerline for three-phase electric power in the world. Built in 1999, it runs from Minami-Iwaki switch (Tamura, Fukushima) to Higashi-Yamanashi substation (Ōtsuki, Yamanashi) and has 2 circuits, which are operated at present with 500 kV, but can be switched over to 1100 kV if necessary equipment is installed. The conductors of the lines consist of 8*31.5 mm ACSR ropes providing for a total current capacity of 4000 Amperes. The line is supported by lattice towers with a typical height of 108 meters. These have three crossbars of spanning 31, 32 and 33 meters.

There are two such lines: the first one is 190 kilometers long and starts at Kashiwazaki-Kariwa Nuclear Power Plant and runs over Nishi-Gunma switch to Higashi-Yamanashi substation. It was built in 1993. The second 240 kilometers long line, which was built in 1999 starts at Nishi-Gunma substation and runs over Higashi-Gunma substation to Minami-Iwaki switch, whereby it passes close to Shin-Imaichi switch, which is not connected to the line.

Sites

Substation/switch Coordinates
Higashi-Yamanashi Lua error in Module:Coordinates at line 668: callParserFunction: function "#coordinates" was not found.
Higashi-Gunma Lua error in Module:Coordinates at line 668: callParserFunction: function "#coordinates" was not found.
Kashiwazaki-Kariwa Lua error in Module:Coordinates at line 668: callParserFunction: function "#coordinates" was not found.
Minami-Iwaki Lua error in Module:Coordinates at line 668: callParserFunction: function "#coordinates" was not found.
Nishi-Gunma Lua error in Module:Coordinates at line 668: callParserFunction: function "#coordinates" was not found.
Shin-Imaichi Lua error in Module:Coordinates at line 668: callParserFunction: function "#coordinates" was not found.

Source