Typical technical specifications for the bare overhead All Aluminium Conductor (AAC) that is intended to be met or improved on include: Cable Stranding Nominal Approx Breaking Modulus of DC Resistance Continuous Current Carrying and Wire Overall Mass of Load of Linear Capacity (Amps) Diameter Diameter Area of Cable Elasticity Expansion (Al) of Cable Cable of Cable Number / mm mm2 kg/km kN GPa x10-6 /oC At At Winter Summer Summer mm 20oC 75oC Night Noon Noon /km Still Air Still Air 1/m/s Ω 19/3.25 19/3.25 16.3 158 433 24.7 65 23.0 0.183 0.224 373 216 465 Notes: The electrical performance characteristics shown above do not take magnetic effects into consideration and are therefore only approximate. The following conditions are also applied to the ratings: conductor temperature rise ambient of 40°C; ambient air temperature of 35°C for summer noon or 10°C for winter night; direct solar radiation intensity of 1000W/m2 for summer noon and zero for winter night; diffuse solar radiation intensity of 100W/m2 for summer noon and zero for winter night; ground reflectance of 0.2; and emissivity and solar absorption coefficient of the conductor surface of 0.5.
Typical technical specifications for the bare overhead All Aluminium Conductor (AAC) that is intended to be met or improved on include: Cable Stranding and Wire Diameter (Al) Nominal Overall Diameter of Cable Area of Cable Approx Mass of Cable Breaking Load Modulus of Elasticity of Linear Expansion of Cable DC Resistance Continuous Current Carrying Capacity (Amps) Number / mm mm mm2 kg/km kN GPa x10-6 /oC At 20oC At 75oC Winter Night Summer Noon Summer Noon Ω /km Still Air Still Air 1/m/s 19/3.25 19/3.25 16.3 158 433 24.7 65 23.0 0.183 0.224 373 216 465 Notes: The electrical performance characteristics shown above do not take magnetic effects into consideration and are therefore only approximate. The following conditions are also applied to the ratings: conductor temperature rise ambient of 40°C; ambient air temperature of 35°C for summer noon or 10°C for winter night; direct solar radiation intensity of 1000W/m2 for summer noon and zero for winter night; diffuse solar radiation intensity of 100W/m2 for summer noon and zero for winter night; ground reflectance of 0.2; and emissivity and solar absorption coefficient of the conductor surface of 0.5.
Covered-Conductor-Performance-Specifications-April-2016.docx