ALUMINUM CONDUCTOR ALLOY REINFORCED（ACAR）

Testing raw materials for ACAR focuses on 1350 aluminum ingots and 6201 alloy rods. Spectrometry analyzes composition, verifying 99.7% aluminum purity for 1350 and precise Mg/Si ratios for alloy as per ASTM B231/B398. Tensile testing determines strength (60-150 MPa for aluminum, 300 MPa for alloy) and elongation (2-5%) with load curves. Conductivity probes confirm 61% IACS for 1350 and 52-55% for 6201. Density and microstructure checks identify voids or grain inconsistencies. Impurity screening ensures low iron/copper levels for corrosion resistance. Surface exams detect inclusions. Batches are documented and rejected if failing, safeguarding conductor performance in transmission applications.

In ACAR production, inspections cover critical phases. Drawing of 1350 and 6201 wires is checked for uniformity with gauges, maintaining tight tolerances. Surface integrity scans detect cracks early. Annealing is monitored for consistent heating to optimize properties, followed by hardness tests. Stranding verifies core reinforcement, tension, and lay per IEC 61089 using automated tools. Electrical tests on assemblies spot conductivity issues. Ductility sampling via bend tests assesses flexibility. Environmental controls prevent contaminants, with logs enabling audits and adjustments. This rigorous approach ensures defect-free, high-performance conductors for utility use.

Final ACAR evaluations include holistic testing. Breaking strength and modulus are tested to meet standards, confirming ratings. Resistance measurements ensure uniform conductivity. Dimensions, including diameter and stranding, are gauged precisely. Defect-free surfaces are inspected ultrasonically. Load simulations assess creep and relaxation for sag stability. Endurance against aeolian vibrations is simulated. Certificates validate compliance after passing, ensuring dependable deployment in power infrastructures with minimal failures.