AACSR (Aluminium Alloy Conductor Steel Reinforced)

AACSR is suitable for large-span medium voltage, high voltage, and ultra-high voltage overhead lines. For example, transmitting electricity in mountainous, hilly, or severely frozen areas.AACSR has high strength and is very suitable for transmitting electricity under long spans or very harsh mechanical conditions.

Next Product Inquire Now

Product Description

AACSR Conductor: The Ultimate Solution for Demanding Power Transmission

When your project requires long spans, harsh environments, or upgraded capacity without rebuilding towers, AACSR (Aluminium Alloy Conductor Steel Reinforced) delivers unmatched performance. Combining a high-strength steel core with a conductive aluminium alloy outer layer, this composite conductor blends exceptional mechanical strength, efficient conductivity, and corrosion resistance. It’s engineered for medium, high, and ultra-high voltage overhead lines—perfect for mountainous regions, coastal areas, industrial zones, and new energy grid-connection projects.

Say goodbye to the limitations of pure aluminum conductors (low strength) and traditional steel-cored aluminium (mediocre heat resistance). AACSR is the trusted choice for reliable, cost-effective power delivery in the toughest conditions — and is supplied globally by Yingshang Aluminum Industry as a proven bare conductor supplier.

What Is AACSR Conductor?

AACSR Conductor, short for Aluminium Alloy Conductor Steel Reinforced, is a high-performance overhead power conductor manufactured via precision composite stranding. Its dual-layer design merges the tensile strength of a steel reinforcement core with the lightweight conductivity of an aluminium alloy outer layer—creating a conductor that excels in long-span installations and harsh mechanical environments.

Designed for 110kV–220kV (and above) lines, AACSR solves the core challenges of power transmission: it’s strong enough to span mountains and valleys, durable enough to resist coastal salt spray and industrial corrosion, and efficient enough to reduce energy loss while boosting capacity.

Aluminium Alloy Conductor Steel Reinforced

Core Structure of AACSR Conductor

Every AACSR conductor is built for stability, durability, and performance. Here’s a detailed breakdown of its design:

Component	Details & Functions
Steel Reinforcement Core	Two types available:- Aluminum-clad steel core: Steel wires with an aluminum coating (superior corrosion resistance for coastal/industrial areas).- Galvanized steel core: Reliable tensile support for general environments.
Aluminium Alloy Outer Layer	High-strength aluminium alloy wires with a circular cross-section. Stranded concentrically around the steel core, with strand count increasing with cross-sectional area.
Overall Design	Tight aluminum-steel interface, stranding pitch of 12–18x the conductor’s outer diameter. Circular cross-section with no gaps; optional light compaction for better space utilization.

Key Features & Benefits of AACSR Conductor

AACSR stands out for its practical advantages that directly translate to project success:

1. Exceptional Strength-to-Weight Ratio

3x higher strength-to-weight ratio than pure aluminum conductors—handles large tensions during long-span installation (ideal for mountainous/hilly regions).
Reduces the number of towers required, cutting engineering and land acquisition costs.

2. Superior Conductivity & Heat Resistance

Conductivity of 52%–61% IACS—balances power delivery efficiency with mechanical strength.
Maintains stability at high temperatures: current-carrying capacity only drops 8%–10% at 150℃, perfect for fluctuating load scenarios.

3. Corrosion Resistance & Longevity

Aluminum-clad steel core variant resists salt spray, industrial exhaust, and harsh weather—service life up to 70 years in coastal cities (e.g., Qingdao, Shenzhen) and petrochemical bases.
Galvanized steel core offers reliable protection for general outdoor environments.

4. Energy-Saving & Capacity-Boosting

Low DC resistance: 400mm² specification as low as 0.062Ω/km at 20℃—reduces power loss by 12%–15% compared to pure aluminum conductors of the same cross-section.
Higher current-carrying capacity: 300mm² variant delivers 585A (25℃, 1000W/m² solar radiation)—8%–10% more than traditional ACSR conductors.

Electrical Performance

AACSR conductor is engineered for consistent, efficient power transmission:

DC Resistance: Stable conductivity from the aluminium alloy layer—minimizes energy loss over long distances.
Current-Carrying Capacity: Outperforms traditional conductors, meeting the demands of large-scale new energy output and industrial loads.
Voltage Compatibility: Suitable for medium, high, and ultra-high voltage lines (110kV–220kV+), with reliable performance under rated voltage.

Installation & Construction Guidelines

To ensure safety and optimal performance, follow these key parameters:

Recommended Installation Temperature: -20℃ ~ 45℃.- Aluminum-clad steel core: Installable at -30℃ without preheating.- Galvanized steel core: Insulate when temperatures drop below -20℃.
Tension Control: Construction tension ≤ 45% of the minimum breaking load. Apply load in stages to avoid impact damage.
Bending Radius: ≥20x the conductor’s outer diameter (relaxed to 18x for aluminum-clad steel core variants).

Applications: Where AACSR Conductor Excels

AACSR’s versatility makes it the top choice for:

1. Coastal & Industrial Power Grids

Aluminum-clad steel core AACSR/AW is ideal for coastal cities and petrochemical bases. It resists salt spray and industrial corrosion, eliminating frequent maintenance and extending service life to 70 years.

2. New Energy Grid-Connection Projects

Used in collection lines and grid-connection lines for wind and photovoltaic bases. Its high strength supports long spans, while its high current-carrying capacity handles large-scale renewable energy output.

3. Aging Line Upgrades & Reconstruction

Replace outdated ACSR conductors in 110kV–220kV lines. Boost transmission capacity by 30%+ using existing tower foundations—no need for tower reconstruction, shortening the project cycle by 40%.

4. Harsh Terrain Transmission

Perfect for mountainous, hilly, or severely frozen areas. Its high strength-to-weight ratio withstands extreme mechanical conditions, reducing tower count and construction complexity.

Standard Specifications

Choose from 48+ specifications to match your project. Contact us for the full, detailed specification sheet.

NO.	Specifications	Structure (root/diameter)		Outer diameter	kilometer weight	Aluminum/steel ratio
NO.	Specifications	Aluminum	Steel	Outer diameter	kg/km	Aluminum/steel ratio
1	10/2	6/1.50	1/1.50	4.5	43.6	67.4/32.6
2	16/3	6/1.85	1/1.85	5.55	65.1	67.9/32.1
3	25/4	6/2.32	1/2.32	6.96	102.6	67.9/32.1
4	35/6	6/2.72	1/2.72	8.16	140.8	68.1/31.9
5	50/8	6/3.20	1/3.20	9.6	194.8	67.9/32.1
6	50/30	12/2.32	7/2.32	11.6	379.2	37.2/62.8
7	70/10	6/3.80	1/3.80	11.4	274.8	67.9/32.1
8	70/40	12/2.72	7/2.72	13.6	510.2	37.3/62.7
9	95/15	26/2.15	7/1.67	13.6	380.2	68.2/31.8
10	95/20	26/2.15	7/1.85		408.9	63.5/36.5
11	95/55	12/3.20	7/3.20	16	706.1	37.3/62.7
12	120/70	18/2.90	1/2.90	14.5	383.8	86.2/13.8
13	120/20	26/2.38	7/1.85	15.1	466.1	68.1/31.9
14	120/25	26/2.38	7/2.10	15.7	512.5	62.3/37.7
15	120/70	12/3.60	7/3.60	18	893.7	37.3/62.7
16	150/8	18/3.20	1/3.20	16	467.3	86.2/13.8
17	150/20	24/2.78	7/1.85	16.7	548.5	72.9/27.1
18	150/25	26/2.70	7/2.10	17.1	600.1	68.1/31.9
19	150/35	30/2.50	7/2.50	17.5	675	59.8/40.2
20	185/10	18/3.60	1/3.60	18	591.4	86.2/13.8
21	185/25	24/3.15	7/2.10	18.9	704.9	72.8/27.2
22	185/30	26/2.98	7/2.32	18.9	731.4	68.0/32.0
23	185/45	30/2.80	7/2.80	19.6	846.7	59.8/40.2
24	210/10	18/3.80	1/3.80	19	659	86.2/13.8
25	210/25	24/3.33	7/2.22	20	787.8	72.8/27.2
26	210/35	26/3.22	7/2.50	20.4	852.5	72.4/27.6
27	210/50	30/2.98	7/2.98	20.9	959	59.8/40.2
28	240/30	24/3.60	7/2.40	21.5	920.7	72.8/27.2
29	240/40	26/3.42	7/2.66	21.7	962.8	68.0/32.0
30	240/55	30/3.20	7/3.20	22.4	1105.8	59.8/40.2
31	300/15	42/3.00	7/1.67	23	949	87.0/13.0
32	300/20	45/2.93	7/1.95	23.4	1000.8	83.4/16.6
33	300/25	48/2.85	7/2.22	23.8	1057	79.7/20.3
34	300/40	24/3.99	7/2.66	23.9	1131	72.9/27.1
35	300/50	26/3.83	7/2.98	24.3	1207	68.1/31.9
36	300/70	30/3.60	7/3.60	25.2	1425.3	59.6/40.4
37	400/20	42/3.51	7/1.95	26.9	1284.3	87.0/13.0
38	400/25	45/3.33	7/2.22	26.6	1293.5	83.4/16.6
39	400/35	48/3.22	7/2.50	26.8	1347.5	83.8/16.2
40	400/50	54/3.07	7/3.07	27.6	1496	72.8/27.2
41	400/65	26/4.42	7/3.44	28	1608.7	68.0/32.0
42	400/95	30/4.16	19/2.50	29.14	1888.1	60.1/39.9
43	500/35	45/3.75	7/2.50	30	1658.7	83.3/16.7
44	500/45	48/3.60	7/2.80	30	1685.5	79.7/20.3
45	500/65	54/3.44	7/3.44	30.96	1878.4	72.8/27.2
46	630/45	45/4.20	7/2.80	33.6	2037	83.4/16.6
47	630/55	48/4.12	7/3.20	34.3	2206.4	79.6/20.4
48	630/80	54/3.87	19/2.32	34.82	2415.9	73.1/26.9

Quality Certifications & Manufacturing Standards

We adhere to global industry standards to ensure every AACSR conductor meets strict quality requirements:

IEC 61089 (International Electrotechnical Commission)
ASTM B232 (American Society for Testing and Materials)
GB/T 1179 (Chinese National Standard)
ISO 9001:2015 Quality Management System Certification

Every conductor undergoes rigorous testing—including tensile strength, conductivity, corrosion resistance, and dimensional accuracy—before delivery. You can trust AACSR to perform reliably in real-world conditions.

Customization & Technical Support

We understand every project is unique. We offer:

Custom core types (aluminum-clad/galvanized steel), cross-sections, and stranding configurations.
Expert technical consulting on installation, tension control, and application matching.
On-site guidance for complex projects (e.g., coastal installations, mountainous transmission lines).
Fast global delivery and responsive after-sales service.

Why Choose Our AACSR Conductor?

Unmatched Strength & Durability: 3x higher strength-to-weight ratio than pure aluminum—ideal for long spans and harsh environments.

Corrosion-Proof: Aluminum-clad core variant lasts up to 70 years in coastal/industrial areas.

Energy-Saving: 12%–15% lower power loss than pure aluminum conductors.

Capacity-Boosting: 30%+ transmission capacity increase for aging line upgrades—no tower reconstruction needed.

Quality Guaranteed: Complies with international standards and strict factory inspections.

Contact Us Today

Ready to elevate your power transmission project with high-performance AACSR conductor? Fill out the form below or contact us directly for a free quote, full specification list, or technical consultation. Our team will respond within 24 hours!