Overhead Transmission Lines

 

From our base in Egypt, Elsewedy Electric is the ideal partner for substations and high voltage transmission lines. We have designed and operated hundreds of substations as well as thousands of kilometers of high voltage transmission lines up to 500 kV/12,000 tons. With unrivalled experience of every type of challenge we can supply you with the right equipment to improve the quality of your operation and enhance the longevity of your installation.

Product Range

 

  • Plain bare drawn copper conductors
    1. Hard drawn conductor
    2. Soft drawn conductor

 

  • All Aluminum Conductors (AAC)

    Hard drawn Aluminum wires stranded in successive layers in opposite directions. Meets BS EN 50182 or IEC 61089. 
     
  • All Aluminum Alloy Conductors (AAAC)

    All-aluminum alloy (ALMELEC) conductors, stranded in successive layers. Meets IEC 61089 or BS EN 50182 or ASTM B 399.
  • Aluminum Conductor Steel Reinforced (ACSR)

    An outer layer of aluminum conductor concentrically stranded over the central core of galvanized solid or stranded steel wires. Meets BS EN 50182 or ASTM B 232 or IEC 61089. 

  • Aluminum Conductor Aluminum Clad Steel Reinforced (ACSR/AW)

    An outer layer of aluminum conductor concentrically stranded over the central core of aluminum clad steel solid or stranded. Conforms to ASTM B549.
  • Aerial Bundled Cables (ABC)

 

Bare Hard and Soft Drawn Copper Conductors.

Certification

Made from a copper conductor insulated by XLPE and assembled together to form two (Duplex), three (Triplex), four (Quadruplex) or more conductors. Meets ICEA S474-76, BS 7884 or customer specifications. 

Made from an aluminum conductor insulated by XLPE and assembled together to form two (Duplex), three (Triplex), four (Quadruplex) or more conductors. Meets ICEA S474-76, BS EN 50182 or customer specifications. 

High Temperature Low Sag (HTLS) conductors optimize the efficiency of overhead lines. By reconductoring existing lines they also avoid the time and cost of installing new transmission lines or acquiring tower sites with right-of-way issues. HTLS conductors increase power flow and can accommodate future demands for increased power. 

They are made from innovative aluminum materials that operate continuously at temperatures up to 250°C. Materials used for traditional overhead conductors are limited to a maximum operating temperature of 80°C. 

  • Aluminum Conductor Composite Core (ACCC)

    Aluminum Conductor Composite Core (ACCC) is a concentrically stranded conductor with one or more layers of trapezoidal shaped annealed 1350-O aluminum wires on a central core of light weight carbon-glass fiber composite. 

  • ACSS/MA

    Aluminum Conductor Steel Supported (ACSS) cable consists of one or more layers of annealed aluminum 1350-O wires stranded over a central core of zinc-5% aluminum mischmetal alloy-coated steel wires designed to withstand most or all of the mechanical load on ACSS. The conductors are manufactured according to ASTM B 856 or customer specifications.

  • ACSS/AW

    Aluminum Conductor Aluminum-Clad Steel Supported (ACSS/AW) cable consists of one or more layers of annealed aluminum 1350-O wires stranded over a central core of aluminum clad steel wires designed to withstand most or all of the mechanical load on ACSS/AW. Meets ASTM B 856 but we can also manufacture to other standards.
  • TACSR

    Thermal Resistant Aluminum Alloy Conductor Steel Reinforced (TACSR) cable consists of one or more layers of thermal resistant aluminum zirconium alloy (AT1) wires stranded over a central core of zinc coated steel wire(s). Conforms to IEC 62004 and IEC 60888 and generally to IEC 61089; we can also manufacture to other standards. 

  • TACSR/AW

    Thermal Resistant Aluminum Alloy Conductor Aluminum-Clad Steel Reinforced (TACSR/AW) cable consists of one or more layers of thermal resistant aluminum zirconium alloy (AT1) wires stranded over a central core of stranded aluminum-clad steel (20SA Type A) wire(s). Conforms to IEC 62004 and IEC 61232 and generally to IEC 61089, other standards possible.

  • STACIR/AW

    Super Thermal Resistant Aluminum Alloy Conductor Aluminum-Clad Invar Reinforced (STACIR/AW) cable consists of one or more layers of super thermal resistant aluminum zirconium alloy (AT3) wires stranded over a central core of stranded aluminum-clad invar wires. Invar is a special Fe/Ni alloy with very low coefficient of linear expansion. Conforms to IEC 62004 and generally to IEC 61089/IEC 61232 but we can also manufacture to other standards. 

Certification

Projects

Beni Suef – Nile Crossing Tower transmission lines, Egypt

Date: 2016 

Client: Egyptian Electricity Transmission Co (EETC)

A 500 kV OHTL project connecting the Beni Suef Power Plant. The 145-metre Nile Crossing Tower is higher than the Great Pyramid of Cheops.

  • 358km of cabling and 2140 m3 of reinforced concrete 
  • 255 tons of reinforced steel bars 
  • 413,280 safe working hours 
  • 14 months from start to finish
  • Tallest transmission tower in the MENA region

 

500kV Single Circuit OHTL Abo Quir-Badr (342 Kms)

Power Transmission

Client: Egyptian Electricity Transmission Co.

Year : 2009

Design, manufacturing, supply and construction for “ABU QUIR-BADR Single Circuit 500kV

OHTL Contract Package” for ABU QUIR-BADR Project three lots (total length approx. (342km) on turnkey basis.

 

 

New Akhmem-East Assiut & East Assiut-East Quna 356 kms OHTL project, Egypt

Date: 2017

Client: Egyptian Electricity Transmission Co (EETC)

  • Design, engineering, installation, testing & commissioning on turnkey basis for: 
  • 500 kV OHTL Double Circuit Quad conductors between Assuit East-New Akhmem with total estimated route length of 180 kms
  • 500 kV OHTL Double Circuit Quad conductors from New Akhmem-East Qena with total estimated route length of 176 kms 

Meika Wakena - Ramo and other transmission lines, Ethiopia

Date: 2008 

Client: Ethiopian Electric Power Corporation 

  • Supply and delivery of complete transmission line including conductors, wires, steel towers, insulators, fittings, OPGW & shield wires
  • 30 kV Meika Wakena - Ramo transmission ine
  • 230 kV Ramo - Gode transmission line materials
  • 132KV power transmission between Harar and Fik

Qatif substation, Saudi Arabia

Date: 2016 

Client: National Grid, Saudi Arabia 

  • EPC contract for all equipment & material
  • Construct, install, test, commission & put into service the overhead transmission line & underground cable circuits for the interconnection of Qatif-2, Line 2, 115/13.8 kV substation

Rural electrification, Mauritania

Date: 2018 

Client: SOMELEC

  • Design, engineering, installation, testing & commissioning on turnkey basis for 105 Km, 90 kV OHTL, lattice steel tower, single circuit single conductor, 2 bays 90 kV AIS type and 10 MVA, 90/33 kV transformer
  • EPC of 405 Km, 33 kV OHTL, metal poles. LV distribution networks for 36 points, including wooden poles, ABC conductor, meters and ready boards

Rural substations and transmission lines, Zambia

Date: 2010 

Client: ZESCO Limited 

  • Design, supply, installation, testing and commission on turnkey basis
  • Upgrade 132/88/33kV Chongwe substation
  • Construction of 66KV transmission line from Chambishi copper belt substation to Mwambashi & New Scaw and associated substations 66/11kV
  • Supply reinforcement at Ndeke village, which includes 45kms of OHTL & establish 2*20MVA/66/33kV & 2*10MVA 33/11kV substations
  • New 33/11kV substation & associated lines (33kv & 11kv) at Chalala and Bonaventure
  • Upgrade 33kv switchgear at 33/11kv Lusaka West & Liverpool substations
  • Upgrade transformer and reinforce 33/11kv Makeni, Chelstone, Matero and Kabulonga substations
  • Supply reinforcement in Chongwe area, incuding 25km of 33kv OHTL, & establish 20/26MVA,33/11kV 

Request Service

MAKE A QUERY