15kV Copper Conductor URD Cable - MV Underground Distribution Cable

Raw Material Test is the critical first step in manufacturing the 15kV Copper Conductor URD Cable. Incoming copper rods undergo detailed chemical composition analysis to confirm high purity and conductivity. Mechanical testing verifies tensile strength, elongation, and hardness for the conductor. Insulation compounds (TR-XLPE or EPR) and semi-conducting materials are rigorously tested for thermal stability, dielectric strength, moisture resistance, and tree-retardant properties. Jacket materials are evaluated for UV stability and mechanical performance. Surface quality inspection and dimensional measurements detect any defects or inconsistencies. Only raw materials that fully pass every stringent criterion are approved for wire drawing, stranding, and extrusion in the production of the 15kV Copper Conductor URD Cable. This thorough incoming inspection guarantees consistent high electrical performance, mechanical strength, and long-term reliability in medium-voltage underground applications.

Process Inspection during manufacturing of the 15kV Copper Conductor URD Cable maintains precise control at every stage. After conductor stranding, continuous monitoring verifies dimensional tolerances and surface quality. Triple extrusion of conductor shield, insulation, and insulation shield is carefully controlled for uniform thickness and clean interfaces. The concentric copper neutral application uses real-time tension control and lay length verification to ensure even helical winding. LLDPE jacket extrusion is monitored for proper thickness and adhesion. Online diameter measurement systems and frequent visual checks prevent defects such as voids or uneven layers. Key process parameters including temperature and speed are strictly logged. Mid-process sampling includes partial discharge and electrical tests. Any deviation triggers immediate corrective action. These rigorous in-process controls safeguard the structural integrity and electrical properties of the 15kV Copper Conductor URD Cable, delivering a high-quality medium-voltage cable ready for underground service.

Finished Product testing ensures every reel of 15kV Copper Conductor URD Cable meets the highest quality standards. Comprehensive dimensional verification confirms overall diameter, insulation thickness, and concentric neutral coverage. DC resistance, high-voltage AC, and partial discharge tests validate electrical performance per ICEA and AEIC requirements. Mechanical tests measure tensile strength and elongation. Full visual and tactile inspections check for surface defects or jacket imperfections. All examinations follow ICEA S-94-649 and AEIC CS8 standards with detailed records for full traceability. Packaging and marking accuracy are also verified. Only the 15kV Copper Conductor URD Cable that successfully passes 100% of these final inspections receives approval for shipment. This rigorous final quality gate assures customers of outstanding dielectric strength, moisture resistance, and reliable performance in medium-voltage underground distribution applications.