Underground cable fault testing and diagnostics in Bangladesh employ advanced techniques to locate and characterize faults in buried power and communication cables, minimizing downtime and excavation costs. Service providers use Time Domain Reflectometry (TDR), Secondary Current Injection, and Very Low Frequency (VLF) testing alongside surge generators to pinpoint cable breaches, sheath faults, and insulation weaknesses. Field teams deploy portable fault locators, earth-pit resistance testers, and partial discharge detectors in compliance with IEC 60840 and local grid codes. Major utilities (PGCB, DESCO) and private contractors offer both on-site pinpointing and off-site sheath testing. Detailed diagnostic reports guide trench planning and repair, optimizing resource allocation. As urban networks densify and aging cables proliferate, these integrated solutions enhance safety, reliability, and cost-efficiency across Bangladesh’s power and telecom infrastructures.
