Tyir / Tyir 50 Ol-Al Drop Cable 4 Core Aluminum Steel Conductors PVC Overhead Twisted Bundle Cable​ The Tyir / Tyir 50 Ol-Al Drop Cable is a 4-core overhead bundle cable, integrating aluminum-steel conductors for low-voltage (0.6/1kV) power distribution. Its 4-core design (25-50mm²) combines aluminum’s lightweight efficiency with steel reinforcement, delivering 120-200A total current—ideal for residential drops, rural electrification, and small commercial connections.​ PVC insulation ensures flexibility (-15°C to 70°C) and moisture resistance, while the twisted bundle structure minimizes EMI by 30% vs. parallel cables. The steel-aluminum hybrid conductors balance conductivity (61% IACS) and tensile strength (800N), reducing pole load by 40% vs. pure copper cables.​ Suitable for overhead drops from poles to buildings, it meets IEC 60228 and ASTM D1784 standards. Compatible with standard drop cable fittings, it simplifies last-mile power delivery in urban and rural areas.​ Key SEO terms: Tyir 50 Ol-Al drop cable, 4-core aluminum-steel cable, PVC overhead twisted bundle, 0.6/1kV distribution cable.