STER-ACAR
Aluminium Conductor Alloy reinforced (ACAR) is formed by concentrically stranded wires of Aluminium 1350 and high strength Aluminium-Magnesium-Silicon (AIMgSi) alloy core. The number of wires of each depends on the cable design. The typical design comprises a stranded core of AIMgSi alloy strands but in certain cable constructions, the wires of AIMgSi alloy strands can be in layers throughout the Aluminium 1350 strands
APPLICATION
Aluminium Conductors Alloy Reinforced - STER - ACAR™
Aluminium Conductors Alloy Reinforced (ACAR) are extensively used for overhead distribution and transmission lines.
ADVANTAGE
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.
MANUFACTURING CAPABILITY
| SR.NO | DESCRIPTION | RANGE | |
|---|---|---|---|
| 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 | |
| 03 | Conductivity | 61% | |
| 04 | Conductivity of Al Alloy | 52.5% to 53% | |
PHYSICAL PROPERTIES
| SR. NO. | CONDUCTOR CONSTRUCTION | MODOLUS OF ELASTICITY* | LINEAR COEFFCIENT* | ||
| MPA | KSI | /OC | /OF | ||
| 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 |
| SR. NO. | DESCRIPTION | RANGE | |
| 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 |
STANDARDS
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