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Uni-Cable ACSR & ACSS Conductors for High Voltage Transmission Projects in Egypt
Release time: 2025-08-26

Uni-Cable ACSR & ACSS Conductors for High Voltage Transmission Projects in Egypt

Egypt has been rapidly expanding and modernizing its electric power infrastructure to support industrial growth, urbanization, and regional power interconnections. The Egyptian Electricity Transmission Company (EETC) initiated multiple 220kV and 500kV transmission line projects to enhance capacity and reliability.

These projects required high-performance overhead conductors capable of carrying large loads over long spans in harsh desert environments. Uni-Cable was selected to supply ACSR (Aluminum Conductor Steel Reinforced) and ACSS (Aluminum Conductor Steel-Supported) conductors, along with matching accessories, for critical sections of Egypt’s high-voltage grid expansion.

Product Scope & Parameters

1. ACSR Conductors (IEC 61089, ASTM B232/B232M)

  • Conductor Sizes: ACSR Zebra 54/7, ACSR Moose 54/7, ACSR Drake 26/7

  • Conductor Material: Hard-drawn aluminum (1350-H19) + galvanized steel core

  • Voltage Class: 220kV & 500kV transmission lines

  • Key Features: High tensile strength, economical, reliable for long-span overhead lines

2. ACSS Conductors (ASTM B856, ASTM B857)

  • Conductor Sizes: ACSS Drake, ACSS Grosbeak, ACSS Pheasant

  • Conductor Material: Fully annealed aluminum strands + high-strength steel core

  • Operating Temperature: Up to 250°C continuous without sagging issues

  • Key Features: Ideal for reconductoring existing lines with higher ampacity, reduced thermal sag, and longer service life

3. Matching Accessories

  • Compression Dead-End & Suspension Clamps

  • Splicing Sleeves & Repair Sleeves

  • Armor Rods & Spacer Dampers

  • Vibration Dampers for desert wind conditions

Applicable Scenarios & Solutions

  • New Line Construction: ACSR Zebra and Moose conductors were used for 220kV new transmission lines between Cairo and Upper Egypt.

  • Grid Reinforcement: ACSS Drake was deployed for reconductoring 500kV lines near the Aswan–Cairo corridor, where existing lines needed increased ampacity without tower replacement.

  • Desert Environment Adaptation: Conductors were designed with corrosion-resistant galvanization and optimized for thermal sag control under high ambient temperatures.

  • System Reliability: Matching accessories ensured seamless installation and long-term stability in sandy and windy conditions.

Quality Inspection & Production Standards

Uni-Cable followed strict international and Egyptian grid standards for manufacturing and testing:

  • Standards: IEC 61089, ASTM B232/B232M, ASTM B856/B857, EETC specifications

  • Electrical Testing: DC resistance of conductor, corona performance, ampacity rating

  • Mechanical Testing: Tensile strength, elongation, stress-strain characteristics

  • Environmental Testing: High-temperature sag test, corrosion resistance in salt fog chamber

  • Certificates: ISO 9001, ISO 14001, OHSAS 18001, Type Test Reports from independent labs

Export Packaging & Shipment

  • Packaging: Heavy-duty wooden/steel reinforced drums for long-length conductors

  • Protection: Moisture-proof wrapping to withstand marine transport and desert storage

  • Marking: Each drum marked with conductor type, standard, batch number, and QR code traceability

  • Shipment: Exported via Port of Alexandria, with staged delivery to match EETC’s project phases

Project Outcome

The use of Uni-Cable ACSR and ACSS conductors enabled Egypt to:

  • Expand 220kV and 500kV transmission capacity efficiently

  • Improve ampacity and reduce line losses on heavily loaded corridors

  • Achieve reliability in desert operating conditions with minimal maintenance

  • Ensure on-time project delivery thanks to Uni-Cable’s factory-direct supply and logistics coordination

EETC engineers praised Uni-Cable for:

  • Consistent product quality meeting IEC and ASTM standards

  • Competitive pricing with factory-direct sales model

  • Fast delivery schedules that supported phased construction

  • Complete solutions, with both conductors and matching accessories supplied

Uni-Cable has strengthened its position as a trusted partner for transmission projects not only in Egypt but across North Africa and the Middle East.

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