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

all WORKS

  • Indoor wiring

    Kanto

    2014

    National Cancer Center, Clinic building

  • Indoor wiring

    National

    Data center construction results: 25 locations nationwide

    Case Studies

    ■Construction test example 1

    ・Building scale: 1 basement floor, 4 stories above ground, 1 story in the wing, total floor area 39,000 m2
    ・Outline of equipment: Special high voltage transformer 66kV/6.6kV 20MVA-2 units
          Generator equipment: 5,000kVA-3 units
          UPS equipment: 1,000kVA-8 sets
          PDU equipment: 250kVA-50 sets

     

    ■Construction test example 2

    ・Building scale: 4 floors above ground, 1 floor in the building, total floor area 22,320 m2
    ・Outline of equipment: Special high voltage transformer 66kV/6.6kV 15MVA-2 units
          Generator equipment: 4,500kVA-3 units
          UPS equipment: 550kVA-31 sets, 500kVA-3 sets
          PDU equipment: 500kVA-46 sets, 100kVA-4 sets

     

    ■Construction test example 3

    ・Building scale: 3 stories above ground, 1 building, total floor area 15,000 m2
    ・Outline of equipment: High-voltage transformer 77kVA/6.6kV 7.4MVA-2 units
          Generator equipment: 4,000kVA-3 units
          UPS equipment: 1,000kVA-6 sets
          PDU equipment: 500kVA-12 sets

     

    ■Construction test example 4

    ・Building scale: 1 basement floor, 5 floors above ground, 1 floor in the building, total floor area 13,700 m2
    ・Outline of facilities: Special high voltage transformer 66kV/6.6kV 30MVA-2 units
          Generator equipment: 7 units of 6,000kVA

     

     

  • 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