AAC (All Aluminium Conductor) is a stranded conductor made from aluminium wires, commonly selected for overhead power distribution where low weight and electrical conductivity are important. To specify one correctly, define the applicable standard, conductor size, strand construction, electrical and mechanical requirements, and installation conditions—not just the product name. The right choice depends on the line’s required current, span, sag limits, environment, and compatibility with fittings. This guide explains what to check and what information to provide when requesting a quotation from Zhongdong Cable.
This guide is intended for utility buyers, electrical contractors, distributors, and project engineers sourcing bare overhead conductors. It is useful if you are comparing AAC with other conductor options, preparing a technical inquiry, or checking whether a proposed specification is complete. It is not a substitute for line-design calculations or the project’s governing electrical code. Confirm final conductor selection with the responsible engineer and the requirements of the local authority.
AAC is a concentric-lay-stranded overhead conductor made from aluminium wires. Its strands form a single conductive body, with no steel core. The conductor’s aluminium construction gives it a relatively low mass for its conductive cross-section, while the stranded design makes it suitable for installation along overhead routes.
AAC is commonly used in distribution networks and other overhead applications where the mechanical design is compatible with an all-aluminium conductor. Its suitability depends on span length, support spacing, required tensile performance, weather loading, and other project conditions. It should not be assumed to be interchangeable with ACSR or AAAC simply because nominal sizes appear similar.
Conductor standards and project documents define the permitted material, wire properties, strand arrangement, and dimensional tolerances. Electrical-grade aluminium is commonly associated with conductivity near 61% IACS, but the applicable material grade and test requirements must be verified against the specified standard. For reference, aluminium density is about 2.70 g/cm3; actual finished-conductor mass depends on the conductor’s dimensions and construction.
AAC is generally described by its nominal area, strand count, and wire diameter or by a code name, depending on the market and governing standard. Code names are not universal across all standards, so include the standard and full construction details in purchase documents. Where a project calls for a particular temper or wire grade, state it explicitly rather than relying on a generic AAC description.
A complete specification enables suppliers to quote the intended product and lets buyers compare offers on a like-for-like basis. The exact fields depend on the project standard and local practice. The following items are common starting points for a technical data sheet or request for quotation.
| Specification item | What to define or verify |
|---|---|
| Applicable standard | Name the required standard and edition, or provide the project specification where a standard is not stated. |
| Nominal size | State the required area and its units, or give the recognized designation under the specified standard. |
| Stranding | Specify strand count, individual wire diameter, and construction where required. |
| Electrical properties | Confirm maximum DC resistance and the reference temperature and test basis stated by the governing specification. |
| Mechanical properties | Check rated strength or other required mechanical values, along with the project’s span and sag criteria. |
| Dimensions and mass | Review overall diameter, calculated or specified mass per unit length, and permitted tolerances. |
| Supply and packaging | Define length per drum, drum requirements, marking, quantity, and any delivery or documentation requirements. |
Resistance values should be compared at the same reference temperature; 20°C is commonly used as a reference for conductor resistance, but the specified standard and test method govern. Do not compare a catalog value at one temperature with a project limit at another without applying the appropriate standard method. Likewise, nominal area alone does not establish the finished conductor’s diameter, mass, or mechanical performance.
Identify the required operating current, system conditions, and any design margin established by the project engineer. Ampacity is not a single fixed value for every installation: it can depend on ambient conditions, conductor temperature limits, wind, solar exposure, and installation assumptions. Ask for the rating basis when comparing supplier data, and use the project’s approved calculation method.
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Review span lengths, support locations, expected loading, sag limits, and installation conditions before selecting a conductor. AAC has no steel reinforcing core, so the project must verify that its mechanical characteristics meet the line design. Where long spans or higher tensile requirements are involved, the engineer should assess whether another conductor type is more appropriate.
Assess exposure to coastal or industrial conditions, temperature variation, vibration, and other site-specific factors. Confirm that clamps, connectors, dead-ends, and other fittings are compatible with the selected conductor’s material and dimensions. Compatibility should be checked against the accessory manufacturer’s requirements, not inferred from a similar-looking conductor size.
AAC conductor pricing depends on factors such as aluminium market pricing, conductor size and construction, order quantity, manufacturing requirements, packaging, and delivery location. Minimum order quantity and production lead time can vary with the requested specification and current production schedule. We recommend requesting these terms alongside the technical offer rather than treating them as fixed across all conductor sizes.
For a useful commercial comparison, ask suppliers to state the quotation validity period, price basis, quantity unit, packing details, estimated dispatch schedule, and any charges that affect landed cost. If your project has a required delivery window, include it in the inquiry. A lower unit price may not represent the best offer if the specification, drum arrangement, or delivery terms differ.
Before placing an order, check that the supplier’s quotation repeats your specified standard, size, construction, and quantity. Request the relevant technical data sheet and clarify what inspection or quality documents are available for the proposed order. Confirm how conductor lengths, drum labels, packing, and shipping documentation will be handled.
Also ask how deviations or substitutions will be communicated and approved. Do not accept a substitute designation based only on a similar name or nominal area; verify the technical equivalence against the project requirements. The buyer should retain the approved specification and order documents as the reference for delivery inspection.
At Zhongdong Cable, we support B2B buyers with AAC conductor inquiries by reviewing the requested standard, construction, quantity, and delivery requirements before preparing a quotation. To help us respond accurately, send the project specification or datasheet, destination, required quantity, preferred packing details, and target delivery schedule. If you are still comparing options, include your application conditions so we can help clarify which technical details need confirmation.
Selecting AAC conductor means matching a defined aluminium construction to both electrical requirements and the mechanical conditions of the overhead line. Specify the governing standard, size, stranding, resistance basis, mechanical criteria, accessories, and supply details, then have the project engineer verify the final design. For your next step, prepare these requirements and request a quotation that addresses each one explicitly. Zhongdong Cable can review your inquiry and provide a proposal based on the information supplied.
If you want to learn more, please visit our website AAC Conductor.