ACSS
Aluminum Conductor Steel Supported
ACSS conductors use fully annealed aluminum strands over a strong steel core, delivering high ampacity with minimal sag at elevated temperatures—ideal for long spans, uprating, and modern high-voltage transmission.
ACSS
Aluminum Conductor Steel Supported
ACSS conductors use fully annealed aluminum strands over a strong steel core, delivering high ampacity with minimal sag at elevated temperatures—ideal for long spans, uprating, and modern high-voltage transmission.
ACSS
Aluminum Conductor Steel Supported
ACSS conductors use fully annealed aluminum strands over a strong steel core, delivering high ampacity with minimal sag at elevated temperatures—ideal for long spans, uprating, and modern high-voltage transmission.
conductor construction
Flexible by nature. Powerful in capacity. Reliable at every load.
Designed for higher ampacity and minimal sag at extreme temperatures.
STRANDING
Aluminum 1350-O wires (Annealed Aluminum Conductivity of 63% IACS) for high current-carrying capacity.
CORE composition
High-strength steel core with zinc or Zn-5% Al-MM alloy coating or Al-cladding.
2x
Ampacity compared to ACSR, operating continuously at temperatures up to 250 °C.
2x
Ampacity compared to ACSR, operating continuously at temperatures up to 250 °C.
2x
Ampacity compared to ACSR, operating continuously at temperatures up to 250 °C.
5-7%
Lower electrical resistance with fully annealed aluminum strands.
5-7%
Lower electrical resistance with fully annealed aluminum strands.
5-7%
Lower electrical resistance with fully annealed aluminum strands.
30%
Less sag at high temperatures due to steel-supported core.
30%
Less sag at high temperatures due to steel-supported core.
30%
Less sag at high temperatures due to steel-supported core.
20+
Years of Extended service life with reduced fatigue and vibration damage.
20+
Years of Extended service life with reduced fatigue and vibration damage.
20+
Years of Extended service life with reduced fatigue and vibration damage.
APPLICATIONS
For Reliable Power in Demanding Environments
ACSS conductors are ideal for medium to extra-high voltage transmission, overhead lines in urban and rural networks, renewable energy integration, reconductoring projects, and regions facing extreme weather conditions.
Extreme Weather Conditions
Renewable Energy Transmission
Upgradation of Transmission and Distribution Lines
Medium, High and Extra High Voltage Transmission Lines
Extreme Weather Conditions
Renewable Energy Transmission
Upgradation of Transmission and Distribution Lines
Medium, High and Extra High Voltage Transmission Lines
Extreme Weather Conditions
Renewable Energy Transmission
Upgradation of Transmission and Distribution Lines
Medium, High and Extra High Voltage Transmission Lines
Extreme Weather Conditions
Renewable Energy Transmission
Upgradation of Transmission and Distribution Lines
Medium, High and Extra High Voltage Transmission Lines
Extreme Weather Conditions
Renewable Energy Transmission
Upgradation of Transmission and Distribution Lines
Medium, High and Extra High Voltage Transmission Lines
Extreme Weather Conditions
Renewable Energy Transmission
Upgradation of Transmission and Distribution Lines
Medium, High and Extra High Voltage Transmission Lines
Extreme Weather Conditions
Renewable Energy Transmission
Upgradation of Transmission and Distribution Lines
Medium, High and Extra High Voltage Transmission Lines
Extreme Weather Conditions
Renewable Energy Transmission
Upgradation of Transmission and Distribution Lines
Medium, High and Extra High Voltage Transmission Lines
FEATURES
Engineered for High Capacity and Low Sag
Built for higher operating temperatures, ACSS conductors combine superior conductivity and mechanical support—delivering consistent clearance, long-span efficiency, and reliable high-voltage transmission performance.
High Ampacity
More Power.
Less Limitation.
Operates continuously at temperatures up to 250°C, providing significantly higher current-carrying capacity than ACSR without excessive sag.
High Ampacity
More Power.
Less Limitation.
Operates continuously at temperatures up to 250°C, providing significantly higher current-carrying capacity than ACSR without excessive sag.
High Ampacity
More Power.
Less Limitation.
Operates continuously at temperatures up to 250°C, providing significantly higher current-carrying capacity than ACSR without excessive sag.
Enhanced Conductivity
Annealed Alumnium.
Efficient Flow.
Fully annealed aluminum strands reduce electrical resistance, improving transmission efficiency and lowering line losses.
Enhanced Conductivity
Annealed Alumnium.
Efficient Flow.
Fully annealed aluminum strands reduce electrical resistance, improving transmission efficiency and lowering line losses.
Enhanced Conductivity
Annealed Alumnium.
Efficient Flow.
Fully annealed aluminum strands reduce electrical resistance, improving transmission efficiency and lowering line losses.
Low Sag Performance
Stable Span.
Reliable Clearance.
Steel-supported core ensures minimal sag under high-temperature loads, maintaining safe ground clearance.
Low Sag Performance
Stable Span.
Reliable Clearance.
Steel-supported core ensures minimal sag under high-temperature loads, maintaining safe ground clearance.
Low Sag Performance
Stable Span.
Reliable Clearance.
Steel-supported core ensures minimal sag under high-temperature loads, maintaining safe ground clearance.
Enhanced Corrosion Resistance
Tough Core.
Lasting Strength.
Zn or Zn-5% Al-MM alloy coating or Al-cladding steel core enhances protection against corrosion and mechanical fatigue.
Enhanced Corrosion Resistance
Tough Core.
Lasting Strength.
Zn or Zn-5% Al-MM alloy coating or Al-cladding steel core enhances protection against corrosion and mechanical fatigue.
Enhanced Corrosion Resistance
Tough Core.
Lasting Strength.
Zn or Zn-5% Al-MM alloy coating or Al-cladding steel core enhances protection against corrosion and mechanical fatigue.
Long Service Life
Built to Last.
Grid Ready.
Less prone to vibration-induced damage, ACSS extends operational lifespan while reducing maintenance requirements.
Long Service Life
Built to Last.
Grid Ready.
Less prone to vibration-induced damage, ACSS extends operational lifespan while reducing maintenance requirements.
Long Service Life
Built to Last.
Grid Ready.
Less prone to vibration-induced damage, ACSS extends operational lifespan while reducing maintenance requirements.
Lightweight Efficiency
Less Weight.
Longer Spans.
Optimized aluminum-to-steel ratio allows for longer spans, reduced sag, and lighter overall structure.
Lightweight Efficiency
Less Weight.
Longer Spans.
Optimized aluminum-to-steel ratio allows for longer spans, reduced sag, and lighter overall structure.
Lightweight Efficiency
Less Weight.
Longer Spans.
Optimized aluminum-to-steel ratio allows for longer spans, reduced sag, and lighter overall structure.
VARIANTS
Variants That Match Your Vision
Multiple ACSS profiles, optimized for different conditions — from mechanical stress to conductor size, climate resistance, and voltage class.
ACSS
TW Suwannee
ACSS
TW Suwannee
ACSS
TW Suwannee
ACSS
Dog
ACSS
Dog
ACSS
Dog
Standards
Delivering performance consistency and compliance without compromise.
Committed to ASTM, BS, and IEC requirements, our products uphold global quality standards
FAQs
Got questions? We’ve got answers. Here’s everything you need to know about working with the Sterlite Team.
applications
Where are ACSS conductors typically used?
Where are ACSS conductors typically used?
Where are ACSS conductors typically used?
How do ACSS conductors support high-temperature operations?
How do ACSS conductors support high-temperature operations?
How do ACSS conductors support high-temperature operations?
Can ACSS conductors replace existing ACSR lines?
Can ACSS conductors replace existing ACSR lines?
Can ACSS conductors replace existing ACSR lines?
Are ACSS conductors suitable for renewable and urban projects?
Are ACSS conductors suitable for renewable and urban projects?
Are ACSS conductors suitable for renewable and urban projects?
Why are ACSS conductors preferred for reconductoring applications?
Why are ACSS conductors preferred for reconductoring applications?
Why are ACSS conductors preferred for reconductoring applications?
FEATURES and BENEFITS
What are the main features of ACSS conductors?
What are the main features of ACSS conductors?
What are the main features of ACSS conductors?
How does the annealed aluminum improve ACSS performance?
How does the annealed aluminum improve ACSS performance?
How does the annealed aluminum improve ACSS performance?
What are the advantages of ACSS over ACSR conductors?
What are the advantages of ACSS over ACSR conductors?
What are the advantages of ACSS over ACSR conductors?
Do ACSS conductors help improve system reliability?
Do ACSS conductors help improve system reliability?
Do ACSS conductors help improve system reliability?
Are ACSS conductors resistant to vibration and fatigue?
Are ACSS conductors resistant to vibration and fatigue?
Are ACSS conductors resistant to vibration and fatigue?
Technical Specifications
What is the construction of an ACSS conductor?
What is the construction of an ACSS conductor?
What is the construction of an ACSS conductor?
What is the maximum operating temperature for ACSS conductors?
What is the maximum operating temperature for ACSS conductors?
What is the maximum operating temperature for ACSS conductors?
How does ACSS performance compare in sag and ampacity?
How does ACSS performance compare in sag and ampacity?
How does ACSS performance compare in sag and ampacity?
What are the mechanical and electrical characteristics of ACSS conductors?
What are the mechanical and electrical characteristics of ACSS conductors?
What are the mechanical and electrical characteristics of ACSS conductors?
What are the available conductor configurations for ACSS?
What are the available conductor configurations for ACSS?
What are the available conductor configurations for ACSS?
certification and standards
Which standards govern the manufacturing of ACSS conductors?
Which standards govern the manufacturing of ACSS conductors?
Which standards govern the manufacturing of ACSS conductors?
Are ACSS conductors certified for high-voltage transmission use?
Are ACSS conductors certified for high-voltage transmission use?
Are ACSS conductors certified for high-voltage transmission use?
What testing protocols ensure ACSS quality and performance?
What testing protocols ensure ACSS quality and performance?
What testing protocols ensure ACSS quality and performance?
Do ACSS conductors undergo type and routine testing?
Do ACSS conductors undergo type and routine testing?
Do ACSS conductors undergo type and routine testing?
What quality control systems are implemented in ACSS production?
What quality control systems are implemented in ACSS production?
What quality control systems are implemented in ACSS production?
procurement and ordering
Can ACSS conductors be designed for specific project conditions?
Can ACSS conductors be designed for specific project conditions?
Can ACSS conductors be designed for specific project conditions?
What is the typical lead time for ACSS conductor delivery?
What is the typical lead time for ACSS conductor delivery?
What is the typical lead time for ACSS conductor delivery?
Are commercial terms and volume discounts offered?
Are commercial terms and volume discounts offered?
Are commercial terms and volume discounts offered?
Do you provide installation training and technical support for ACSS lines?
Do you provide installation training and technical support for ACSS lines?
Do you provide installation training and technical support for ACSS lines?
What documentation accompanies an ACSS conductor shipment?
What documentation accompanies an ACSS conductor shipment?
What documentation accompanies an ACSS conductor shipment?
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Empowering humanity by addressing the toughest challenges of clean energy delivery
get updates
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Designed and Developed by Figure&Plot
Empowering humanity by addressing the toughest challenges of clean energy delivery
get updates
follow us
Designed and Developed by Figure&Plot