TW AND THW

NPC Electric conducts comprehensive Raw Material Tests for TW and TH Wires to ensure production quality from the source. Copper conductors are evaluated for electrical conductivity, mechanical strength, dimensional accuracy, and surface cleanliness. Insulation materials are tested for heat resistance, tensile strength, elongation, and aging characteristics. Only materials that pass all required tests are approved for manufacturing, ensuring NPC Electric TW and TH Wires achieve consistent electrical and mechanical performance.

Process Inspection is conducted throughout the manufacturing of NPC Electric TW and TH Wires to maintain consistent quality. Conductor drawing and stranding processes are monitored for dimensional accuracy and uniform structure. Insulation extrusion is inspected for thickness control, concentricity, and surface integrity. In-process checks are performed at each production stage to prevent defects and ensure compliance with applicable standards. This step-by-step inspection process guarantees stable production quality and dependable performance of TW and TH Wires.

Finished Product Test verifies the final quality of NPC Electric TW and TH Wires. Electrical testing includes resistance measurement, insulation integrity checks, and voltage withstand testing. Mechanical tests assess flexibility, bending performance, and overall durability. Final visual inspection confirms correct labeling and surface condition. Only products that fully meet specifications are released for shipment.