AAC (All-Aluminium Conductor)

Lightweight, cost-effective, good electrical conductivity. Ideal for power transmission/cables. Key traits: low density, corrosion-resistant

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Product Description

AAC Conductor: Your Go-To All-Aluminium Power Solution

When building or upgrading power distribution systems that need to balance performance, cost, and ease of installation, AAC (All-Aluminium Conductor) is the industry’s trusted choice. Crafted from high-purity aluminum, this conductor brings together the best of aluminum’s natural strengths—light weight, excellent conductivity, and durability—making it perfect for low to high-voltage overhead projects, from rural mountain grids to urban neighborhoods and factory floors.

Whether you’re looking to minimize installation costs, reduce tower load, or deploy a large-scale distribution network, AAC conductor delivers consistent, reliable performance without compromising on quality — and is widely supplied by Yingshang Aluminum Industry as a dependable bare conductor supplier.

Round Aluminum Conductor (AAC) is a circular cross-sectional conductor made of high-purity aluminum (usually ≥ 99.5% purity) through drawing and twisting. With its lightweight, low cost, and easy processing characteristics, it has become the basic type of conductor for low-voltage to high-voltage overhead power transmission and is widely used in power grid construction and distribution systems.

What Is AAC Conductor?

AAC Conductor, short for All-Aluminium Conductor, is a circular cross-section power cable manufactured through precision drawing and concentric stranding of high-purity aluminum (≥99.5% purity). Its core design follows a "1-center + outer layer surrounding" stranding structure, with common strand counts of 7, 19, or 37 (increasing as the conductor’s cross-section grows).

This simple yet robust design leverages aluminum’s inherent advantages to solve key pain points: it’s lighter than copper, more affordable than alloy conductors, and easy to process—making it the basic workhorse for overhead power transmission and distribution systems worldwide.

All-Aluminium Conductors

Core Structure of AAC Conductor

Every AAC conductor is engineered for stability, conductivity, and long-term use. Here’s a breakdown of its key structural elements:

Component	Details & Functions
Material	High-purity aluminum (≥99.5% purity) – ensures optimal electrical conductivity and ductility.
Stranding Design	Concentric stranding ("1-center wire + outer layers") – strand counts range from 7 to 37, adapting to different cross-section sizes and load requirements.
Appearance	Circular cross-section, smooth surface (no bumps or dents), and uniform stranding pitch – guarantees mechanical stability and consistent power flow.

Key Features & Benefits of AAC Conductor

AAC conductor stands out for its practical, project-friendly advantages that directly translate to cost savings and efficiency:

1. Ultra-Lightweight for Easy Installation

Aluminum density is just 2.7g/cm³ – about 1/3 the weight of copper conductors with the same cross-section.
Reduces tower load significantly, making it ideal for remote or mountainous areas where heavy lifting equipment is hard to access.
Cuts transportation and on-site labor costs, especially for large-scale grid rollouts.

2. Cost-Effective & Versatile

High-purity aluminum is widely available and affordable, lowering material costs compared to copper or steel-cored conductors.
Excellent ductility: Aluminum can be drawn into single wires as thin as 0.5mm, and won’t easily break during stranding – supporting production of cross-sections from 10mm² to 630mm².

3. Natural Corrosion Resistance

Aluminum forms a dense, protective oxide film on its surface naturally – no extra plating or coatings needed to resist rain, wind, or outdoor wear.
Performs reliably in conventional outdoor environments, reducing long-term maintenance and replacement costs.

4. Stable Electrical Performance

DC resistance decreases with increasing cross-section: For example, 16mm² = 1.91Ω/km; 120mm² = 0.253Ω/km; 630mm² = 0.0469Ω/km – ensuring it meets the needs of low to high-voltage distribution.
Voltage resistance: Insulation coordination complies with relevant voltage class standards – no breakdown or flashover at rated voltage.

Installation & Construction Guidelines

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

Recommended Installation Temperature: -10℃ ~ 40℃. When temperatures drop below -10℃, aluminum wires become brittle – take insulation and anti-brittle measures to avoid damage.
Maximum Allowable Tension: Construction tension must not exceed 40% of the conductor’s minimum breaking load – prevents core deformation or permanent damage.

Applications: Where AAC Conductor Excels

AAC conductor’s versatility and cost-effectiveness make it the top choice for:

1. Rural Power Grid Construction

Perfect for low to high-voltage distribution networks in rural areas. Its lightweight design simplifies installation in mountainous or hard-to-reach locations, and its cost advantage supports large-scale deployment across villages and farmlands.

2. Urban Low-Voltage Distribution

Used for 0.4kV power lines in residential areas, streets, and communities. Works seamlessly with transformers to deliver electricity directly to homes and small businesses, integrating easily with urban infrastructure.

3. Small-Scale Industrial Distribution

Ideal for power lines below 10kV inside factories and industrial parks. Meets the regular electricity needs of motors, production equipment, and other industrial loads – reliable and cost-efficient for on-site wiring.

Standard Specifications

Choose from a wide range of cross-sections to match your project’s needs. Contact us for the full, detailed specification sheet.

Nominal cross section	Number of conductors/single wire diameter	Conductor structure	First layer		Second layer		Third layer		Fourth layer		Control cross section (mm²)	Weight per meter	Standard resistance	Internal control resistance
mm	Number of conductors/single wire diameter	Conductor structure	Reference mold	Pitch	Reference mold	Pitch	Reference mold	Pitch	Reference mold	Pitch	Control cross section (mm²)	≤g/m	≤Ω/km	≤Ω/km
10	7/1.35	1+6	3.8	65-75							9.4	25.4	3.08	2.9876
16	7/1.71	1+6	4.7	75-90							15.2	41.1	1.91	1.8527
25	7/2.12	1+6	6	90-110							24	64.9	1.2	1.176
35	7/2.54	1+6	7	110-130							33.7	91.1	0.868	0.8506
50	10/2.54	2+8	8	120-140							46	124.3	0.641	0.6314
70	14/2.54	4+10	5.6	105-120	9.9	125-145					67	181.1	0.443	0.4364
95	19/2.54	1+6+12	7	130-145	11.6	150-170					92	248.7	0.32	0.3152
120	24/2.54	2+8+14	8.5	150-165	13	170-190					115	310.8	0.253	0.2492
150	30/2.54	4+10+16	5.7	120-140	9.8	155-170	14.5	180-205			143	386.5	0.206	0.2029
185	37/2.54	1+6+12+18	7	150-165	11.6	175-190	16.1	200-225			180	486.5	0.164	0.1624
240	48/2.54	3+9+15+21	10	190-210	14.2	215-235	18.5	235-255			235	635.2	0.125	0.1238
300	61/2.54	1+6+12+18+24	7	160-175	11.6	215-235	16.3	240-260	20.5	255-275	294	794.7	0.1	0.099
400	61/2.9	1+6+12+18+24	8.3	170-185	13.5	245-265	18.5	280-300	23.5	290-320	379	1024.4	0.0778	0.077
500	61/3.24	1+6+12+18+24	9.5	200-235	14.8	260-280	20.6	310-330	26.5	330-360	486	.1313.7	0.0605	0.0599
630	61/3.68	1+6+12+18+24	10.6	220-250	17.2	330-350	23.6	360-380	30	380-400	622	1681.3	0.0469	0.0464

Quality Certifications & Manufacturing Standards

We uphold strict quality control to ensure every AAC conductor meets global industry standards:

IEC 60228 (International Electrotechnical Commission)
ASTM B230 (American Society for Testing and Materials)
GB/T 1179 (Chinese National Standard)
ISO 9001:2015 Quality Management System Certification

Rigorous Production & Inspection Process

Raw material testing: Verify the purity of aluminum (≥99.5%) before drawing.
Stranding control: Monitor tension closely to avoid over-stretching single wires (which causes excessive DC resistance).
Surface inspection: Ensure conductors are smooth, clean, and free of oil stains, cracks, or mechanical damage.
Joint standards: Welding is allowed on single wires – same-layer joints must be ≥300mm apart; same-wire joints ≥15mm apart – all joints are smooth and rounded.
Final testing: Check resistance, weight per meter, and outer diameter before delivery – only qualified products leave our factory.

Customization & Technical Support

We understand every project is unique. We offer:

Custom cross-sections, strand counts, and single wire diameters.
Expert technical consulting on installation, tension control, and application matching.
On-site guidance for complex projects (e.g., rural mountain grids, dense urban distribution).
Fast global delivery and responsive after-sales service.

Why Choose Our AAC Conductor?

Cost-Saving: Affordable material and lightweight design cut material, transportation, and labor costs.

Easy to Install: Low weight reduces tower load and on-site work difficulty – perfect for remote areas

Reliable Performance: High-purity aluminum ensures stable conductivity and natural corrosion resistance.

Versatile: Fits rural, urban, and industrial low-voltage distribution needs.

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

Contact Us Today

Ready to build a cost-effective, reliable power distribution system with AAC 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!