477MCM Cosmos AAC All Aluminum Stranded Conductor

The 477 MCM Cosmos AAC (All Aluminum Stranded Conductor) is a high-capacity overhead conductor designed for efficient transmission and distribution of electrical power. Made from high-purity aluminum strands, it offers excellent electrical conductivity, lightweight construction, and flexibility, which simplifies installation and handling. With a cross-sectional area of approximately 477,000 circular mils, the Cosmos AAC conductor is suitable for high-current applications in utility and industrial power systems. Its corrosion-resistant and durable design ensures long-term performance and reliability in outdoor environments exposed to various weather conditions. This conductor helps reduce electrical losses, improve system efficiency, and maintain stable operation, making it an ideal choice for reliable overhead power transmission.

  • 477mcm Cosmos Aac All Aluminum Stranded Conductor

477MCM Cosmos AAC All Aluminum Stranded Conductor


All Aluminum Conductor 477MCM Cosmos

  • Code Word Cosmos
  • Number of Stranded 19
  • Standard ASTM B231
  • Conductor Material All Aluminum Conductor


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AAC Cosmos Conductor Application

477MCM Cosmos AAC Cable can be used in low and medium voltage overhead lines. It’s commonly used in urban areas because of its ability to carry significant voltages over short distances. The long-lasting, corrosion resistant qualities of aluminum make this conductor a popular choice for use in coastal areas as well as for use in the railway and subway industries. Shipyards and offshore construction sites benefit from the conductor’s durability.477MCM Cosmos AAC Cable can be used for most overhead transmission duties when conductor strength is not a factor. The conductor can also be used for primary and secondary distribution applications.

AAC (all aluminum conductor) is the most economical bare overhead conductor due to its lighter weight. It offers easier handling during installation and use of simpler fittings. The wire is corrosion resistant due to its homogeneous construction.

STANDARD

AAC Cosmos Conductor Standard
-ASTM B-230: Aluminum 1350-H19 wire for electrical purposes.
- ASTM B 231: Concentric Lay Stranded Aluminum 1350 Conductors.

Construction

AAC Cosmos Conductor Construction
Aluminum alloy 1350 wires concentric lay stranded wrapped helically around a central wire. Each successive layer has six wires more than the previous underlying layer. Outer layer is right hand lay and reversed in successive layers.

 All Aluminum Conductor AAC Construction

All Aluminum Conductor AAC Construction

PARAMETER
Code name: Cosmos
Size AWG: 477
Stranding: 19
Stranding Class: AA
Diameter Individual Wire Aluminum (Inches): 0.1584
Diameter Complete Cable (O.D.) (Inches): 0.793
Cross Sectional Area (Sq. Inches): 0.3746
Weight Per 1000ft Total (Lbs.): 447.8
Rated Breaking Strength (Lbs.): 8360
Resistance DC 20°C Per 1000ft (Ω): 0.0362
Resistance DC 75°C Per 1000ft (Ω): 0.0445
Allowable Ampacity 90C (Amps): 639