ACSR: Strength and Efficiency for Modern Power Lines

Welcome to 4E Energy! We proudly present our ACSR overhead conductors — engineered to deliver outstanding mechanical strength, efficient power transmission, and long-term reliability. Whether for long-span overhead lines, high-voltage transmission, or demanding environmental conditions, our ACSR conductors are designed to meet the needs of modern power infrastructure with excellence and durability.

Home ACSR (Aluminium Conductor Steel Reinforced)

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The ACSR conductor combines the conductivity and lightweight advantages of high-purity aluminum with the mechanical strength of a steel core. This hybrid structure enables it to carry high electrical current while sustaining heavy mechanical loads, making it ideal for overhead transmission and distribution lines. Our ACSR is manufactured under strict standards and optimized for long spans, minimal sag, and stable performance — offering a cost-effective solution for utilities and infrastructure projects worldwide.

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Product Advantages

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Superior Strength & Long-Span Performance

ACSR conductors combine lightweight aluminum with a high-tensile steel core, delivering an exceptional strength-to-weight ratio. This structure enables the conductor to support long spans between towers while minimizing overall load and installation costs. The steel core enhances resistance to mechanical stress, wind, ice, and temperature variations, ensuring stable sag control and dependable long-term operation.

High Conductivity & Cost-Effective Efficiency

With outer layers made of high-purity aluminum, ACSR provides excellent electrical conductivity and low resistance, enabling efficient power transmission over long distances. Compared with all-copper or all-aluminum conductors offering similar performance, ACSR is a more economical solution while still meeting major global standards, making it both cost-efficient and internationally compliant.

Technical Specifications

Our ACSR conductors are designed in accordance with international standards and deliver stable electrical and mechanical performance. Key technical specifications include the following:

Conductor Structure & Material

ACSR conductors feature a central core made of galvanized or coated steel wires — available as single-wire or multi-strand options — providing strong tensile reinforcement. Surrounding this core are one or more layers of hard-drawn aluminum strands, ensuring excellent electrical conductivity. This aluminum-steel combination delivers both high mechanical strength and efficient current transmission, making the conductor suitable for long spans and heavy-load environments.

Available Sizes & Ratings

ACSR is manufactured in a wide range of cross-sectional sizes to support various transmission and distribution requirements. Specifications may include conductor diameter, total cross-section, DC resistance, tensile strength, and mass per kilometer. Larger configurations—such as 400/65, 500/85, and 630/100—provide higher current-carrying capacity and improved mechanical performance, allowing customization based on system design and environmental needs.

Performance & Operating Conditions

Standard ACSR conductors typically operate up to approximately 75 °C, maintaining stability under thermal changes and environmental stress. The aluminum strands ensure efficient power transmission, while the steel core minimizes sag and preserves mechanical integrity under wind load, ice accumulation, or long-span installations. These performance characteristics help ensure reliable operation and long service life across diverse operating conditions.

Application

Overhead Transmission Lines

ACSR is widely used in medium- and high-voltage overhead transmission systems, where its high tensile strength and excellent conductivity support efficient long-distance power delivery. It ensures stable performance across expansive grid networks and is a preferred choice for utility infrastructure upgrades.

Long-Span Crossings

Thanks to its steel-reinforced core, ACSR performs exceptionally well in long-span environments such as river crossings, deep valleys, and mountainous regions. Its ability to maintain low sag and high mechanical stability makes it ideal for installations requiring extended unsupported spans.

Heavy Wind & Ice Load Regions

In areas with harsh climatic conditions, ACSR provides reliable resilience against wind pressure, ice accumulation, and temperature fluctuations. The steel core prevents deformation and sagging, ensuring consistent ground clearance and operational safety even in severe weather.

Industrial & Rural Power Distribution

From industrial zones requiring robust and stable power to rural regions with wide span distances between poles, ACSR offers a durable and cost-effective solution. Its adaptability and long service life make it suitable for various distribution network configurations.

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With our team of experienced professionals, we provide reliable technical support and tailored one-stop solutions to meet the needs of customers worldwide. Whether you require product guidance or project assistance, we are here to help you every step of the way.

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FAQs

1. What is ACSR and how is it constructed?
ACSR (Aluminium Conductor Steel Reinforced) is a conductor made of hard-drawn aluminum strands wrapped around a galvanized steel core. The aluminum provides high conductivity, while the steel core delivers superior tensile strength for long-span applications.
2. Why is ACSR suitable for long-distance transmission lines?
Because of its high strength-to-weight ratio, ACSR can span long distances between towers with minimal sag. This makes it ideal for overhead transmission lines crossing rivers, valleys, mountains, and wide terrain.
3. What operating temperatures can ACSR withstand?
Standard ACSR conductors typically operate up to 75°C, maintaining mechanical integrity and stable sag performance even under heavy electrical load, wind pressure, or ice accumulation.
4. Does ACSR comply with international standards?
Yes. ACSR conductors are manufactured to comply with major global standards such as ASTM B232, IEC 61089, and DIN 48204, ensuring consistent quality, safety, and global compatibility.
5. What factors should be considered when selecting an ACSR size?
When choosing an ACSR conductor, key factors include required current capacity, span length, environmental conditions (wind/ice load), mechanical strength, and regulatory standards. Selecting the right combination ensures optimal performance and long-term reliability.

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If you have any questions or specific requirements regarding portable outdoor power solutions, please feel free to reach out to our customer service team. Our professional experts will provide detailed product information, answer all your inquiries, and help tailor the optimal solution to meet your needs

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