Toko Electric is engaged in a wide range of businesses, focusing on internal and external line construction.
In the Achievements page, we introduce some of the projects we have undertaken.

Business

Area

Outdoor wiring WORKS

  • Outdoor wiring

    Kanto

    2015

    Boso line

    The Boso Line, which runs between the Shin Keiyo Substation and the Boso Substation, is an important line in the Keiyo section. While there have been few cases of large tower reconstruction in Japan, the project was successfully completed after the relocation and temporary construction of four conductors.

    Case Studies

    ■Voltage
    500kV

    ■Power lines
    ACSR/AC810m㎡

  • Outdoor wiring

    Kanto

    2014

    Nishijobu trunk line

    From 2006 to 2014, we constructed the Shibukawa-Minogo 1 section, Minogo-Nishige 2 section, Nishi-Gunma Shibukawa 3 section, and Nishige Nagatoro 1 section of this 110.4km-long 500kV transmission line connecting the Nishi-Gunma Switchyard (Nakanojo-machi, Agatsuma-gun, Gunma Prefecture) and the Shin-Tokorozawa Substation (Tsurugashima-shi, Saitama Prefecture).

    Case Studies

    ■Voltage
    500kV

    ■Section
    Nakanojo-machi, Agatsuma-gun, Gunma Prefecture – Tsurugashima-shi, Saitama Prefecture
    110.4km long

  • Outdoor wiring

    Chubu

    2004

    2nd Hamaoka trunk line

    It was constructed as a power transmission line due to the construction of Unit 5 at the Hamaoka Nuclear Power Station of Chubu Electric Power Co.
    Chubu Electric Power Co. It uses three conductors unique to Chubu Electric Power.

    Case Studies

    ■Voltage
    500kV

    ■Electric wire
    LN-TACSR/AC 1160mm2(3 conductors) x 2cct
    LN-OPGW260mm2×2
    LN-AC260mm2×1

    ■Section
    Hamaoka-cho to Ogasa-cho, Ogasa-gun, Shizuoka Prefecture
    7.1 km long, 14 towers

  • Outdoor wiring

    Chubu

    2010

    Joetsu thermal power line

    It was constructed as a power transmission line due to the construction of the Joetsu Thermal Power Station of Chubu Electric Power Co.

    Case Studies

    ■Voltage
    275kV

    ■Electric wire
    TACSR/AC 410mm2(4 conductors)×2cct

    ■Section
    Nagasawa, Myoko City, Niigata Prefecture – Iiyama City, Nagano Prefecture – Nagae, Nakano City, Nagano Prefecture 14.4 km long, 28 towers

  • Outdoor wiring

    Chubu

    2010

    Higashi-Nagoya branch line

    We carried out electric line replacement work to ensure a stable supply of electricity and to update facilities in the Nagoya area.

    Case Studies

    ■Voltage
    275kV

    ■Electric wire
    ACSR410mm2 (double conductor)

    ■Section
    1.8 km section of electric line replacement