Aluminium Conductors Alloy Reinforced (ACAR) are extensively used for overhead distribution and transmission lines.
ACAR has better mechanical and electrical properties as compared to an equivalent ACSR, AAC or AAAC. A very good balance between mechanical & electrical properties makes ACAR the best choice where ampacity, strength and low weight are main consideration for line design. ACAR offers higher strength and ampacity than ACSR of same weight. A higher UTS and current carrying capacity can be obtained by increasing aluminium alloy and aluminium content respectively.
|01||Conductor Area||10.6mm2 to 1520mm2||0.0164 in2 to 2.356 in2|
|02||Conductor construction||4Al/3Al Alloy to 72Al/19 Al Alloy|
|04||Conductivity of Al Alloy||52.5% to 53%|
|SR. NO.||CONDUCTOR CONSTRUCTION||MODOLUS OF ELASTICITY*||LINEAR COEFFCIENT*|
|01||7 Strands||62000||8992||23.0 X 10-6||12.8 X 10-6|
|02||19 Strands||60000||8702||23.0 X 10-6||12.8 X 10-6|
|03||37 Strands||57000||8267||23.0 X 10-6||12.8 X 10-6|
|04||61 Strands||55000||7977||23.0 X 10-6||12.8 X 10-6|
|01||Permissible Temp in continuous operation||85°C||185°F|
|02||Temp in a short circuit (duration up to 5 s)||200°C||392°F|