Section／Towada power trunk line (Towada in Aomori Prefecture to Sannohe-machi, 12.5 km route length, 29 steel towers) Kitakami power trunk line (Osaki in Miyagi Prefecture to Kami-machi, 15.6 km route length, 37 steel towers)
Completed in 2010 The Towada-Kitakami power trunk line was built to serve as transport for power supply to the Shimokita Peninsula in Aomori Prefecture and as an artery for the power supply network in the Tohoku area. With an overall length of 300 km using 717 steel towers, the scale of these large backbone transmission lines is the largest in the nation, and we were responsible for the construction of 4 sections of the Towada power trunk line and 10 sections of the Kitakami power trunk line.
Higashi-Nagoya branch line
Transmission line／ACSR 410 mm2 (Double conductor)
Section／1.8 km section, wire replacement
Completed in 2010 To stabilize the power supply and enable equipment updates in the Nagoya district, we performed wire replacement work.
Section／Hamaoka-cho, Ogasa-gun, Shizuoka to Ogasa-cho. 7.1 km route length, 14 steel towers
Completed in 2004 It was built as a power transmission line for the Hamaoka Nuclear Power Plant fifth unit construction. It uses 3 conductors which is charactaristic of Chubu Electric Power.
Nishijobu trunk line
This 5,000 kV transmission line construction project comprised a total length of 110.4 km connecting the Nishi-Gunma switching station (Nakanojo-machi, Agatsuma-gun, Gunma Prefecture) and the Shin-Tokorozawa substation (Tsurugashima-shi, Saitama Prefecture). From 2006 to 2014, our company undertook the construction on these sections: Shibukawa-Misato 1, Misato Seimo 2, Nishi-Gunma Shibukawa 3, and Seimo Nagatoro 1.
Completed in 2015 The Boso line is an important Keiyo section connecting the Shin-Keiyo substation and the Boso substation. Nationwide there have been few records of large-scale steel tower replacement, but we successfully completed the four conductor wire transfer and temporary construction work.
Main equipment list
10t -m class
Extension line car
φ 1.5m, electric winder
φ 1.2m, electric winder
φ 1.0m, electric winder
Overhead line winch
Hydraulic 5t winder (crawler type)
Hydraulic 3t winder (crawler type)
Hydraulic drum stand
Hydraulic winding type
OPGW drum stand
Tensing wire winch
Hydraulic 3.0t winder (crawler type)
Hydraulic 2.5t winder (crawler type)
Hydraulic 2.0t winder (crawler type)
φ 800, urethane
φ 600, urethane
φ 600×3-wheel, urethane
φ 450, urethane
φ 300, urethane
φ 800, OPGW narrow groove
φ 300, steel plate
Suspension metal wheel, 6-sided
Suspension metal wheel, up-down, 2-wheel
Crawler-type, OPGW 120
Crawler-type, OPGW 300
Crawler-type, OPGW 290
For tensing wire, φ 90 × 1 wheel
For tensing wire, φ 90 × 2-wheel
For tensing wire, φ 120 × 1 wheel
For tensing wire, φ 120 × 2-wheel
For scaffolding, H=50m
For scaffolding, L75
Key lock rope
We also rent equipment.
Our transportation business that also makes up the arteries that connect cities and people. Railway electrical equipment that supports the infrastructures of cities, such used by the Shinkansen and the Japan Railway companies. Road electrical equipment, such as used in tunnels and on bridges. Our technical capabilities, backed up by our many years of experience and track record, are very highly regarded.
Since the operation of the Shinkansen began, we have been maintaining overhead lines for railways in the Tokyo area (including the Oi train yard).
(Photo courtesy of JR Tokai)
Completed in 2010 We performed electrical equipment construction work on the central circular Route (Yamate tunnel) between Nishi-Shinjuku junction and Ohashi junction.
Completed in 2005 We performed electrical equipment construction work at Minami-nagareyama Station.