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Cable fault location, testing, and diagnostics

Empower your decision making with our innovative cable fault solutions.

Reliable cable infrastructure plays a critical role in today’s landscape. Megger plays a critical role in helping you avoid service interruptions. That’s because Megger’s cable testers find faults other devices can’t detect — whether it’s damage to the cable, workmanship failures, or cable deterioration — helping you reduce costs and maximise the security of your supply. Our experience in testing, knowledge of cables, and cable test methods fuel our designs, resulting in the most efficient solutions and best-in-class performance.

Frequently asked questions

We provide a comprehensive range of products tailored to every stage of fault location, including fault prelocation, pinpointing, cable tracing, and phase identification. Our portable handheld instruments are ideal for efficiently resolving cable faults, while our standalone cable fault locating systems integrate multiple functions and testing methods to handle LV, MV, and HV cables in portable, rugged units designed for all terrains. For a complete solution, our vehicle-installed cable fault location systems come fully equipped, offering unmatched on-site diagnostic and testing capabilities. 

The main methods for resolving underground cable faults involve a structured approach using advanced testing equipment. This includes initial low-voltage testing to confirm the fault, followed by tools like time domain reflectometers (TDRs) to estimate the fault's location. If the fault is high-resistance, techniques like arc reflection or impulse current methods are employed. Finally, pinpointing is achieved with surge generators (thumpers) and specialized receivers to detect the fault's exact location. Our advanced cable fault detection tools offer quick, safe solutions, from compact devices to all-in-one systems for efficient fault location and identification. 

Many of our stand-alone cable testing products feature smart software that guides users through the fault location process, automatically adjusting parameters, interpreting results, and recommending the next steps. This simplifies the process for beginners and saves time for experts, while still allowing manual control over all settings when required.  

Contact us through our Support page for assistance finding the correct parts and accessories for your product. 

You can purchase our products and solutions directly from Megger, through our sales representatives, or via authorized distributors. For more information, reach out to us with an inquiry today through our contact form. 

Additional Resources

Take a deeper dive into cable fault testing instruments through our comprehensive guides.