Cable testing and diagnostics

Explore our full range of cable testing and diagnostic tools designed to support you at every stage — from commissioning and fault location to condition assessment and ongoing maintenance. Keep your cable network safe, reliable, and future-ready.

Our cable test and diagnostics systems help you avoid service interruptions by giving you the right tools at every stage of the cable lifecycle.

From verifying the quality of new cable installations to assessing ageing systems, our products support a wide range of tests that enable condition-based maintenance — reducing risk and improving long-term performance.

Every solution is built on Megger’s deep expertise in cable design, insulation behaviour, and proven test methods. That means you can trust our technology to deliver accurate, reliable results backed by decades of industry experience and state-of-the-art innovation.

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Trusted results you can act on

Accurate data is the foundation of good decision-making. Megger test systems are trusted worldwide for their precision, consistency, and reliability — helping you assess cable condition with total confidence. Our technology is engineered to detect early signs of insulation breakdown, installation faults, and cable degradation — delivering insight you can depend on across a range of network conditions. Every product is supported by Megger’s decades of expertise and built to meet the highest industry standards, ensuring you get reliable, repeatable results every time.

Built for tough environments

Megger systems are designed for the realities of fieldwork — remote access points, exposed conditions, and unpredictable weather. With rugged housings, weather-resistant construction, and industrial-grade components, our equipment can handle rough treatment and harsh environments without compromising performance. Whether it’s rain, dust, heat, or cold, your test gear keeps working — so you can stay productive no matter the conditions.

Designed to make testing simple

Testing should be efficient, not frustrating. Megger systems are developed with usability at the core, helping you carry out complex tests with ease. Features like touchscreen interfaces, automated test sequences, and built-in data management eliminate manual errors and speed up every step of the process — from setup to reporting. You don’t need to be an expert to get expert results. Our systems help you work faster and smarter, with minimal training and maximum clarity.

Expert support every step of the way

Megger gives you more than just reliable test equipment: you get access to a global team of cable testing experts ready to help you succeed. From in-person training and webinars to fast-response technical support, we make sure you’re confident and capable with your equipment from day one. If you need help optimising test setups, understanding results, or training your team, our technical specialists are just a call or email away. With Megger, you're never testing alone.

Frequently asked questions

Who can benefit from Megger’s cable test and diagnostics products?

Megger’s systems are built for professionals who need reliable insights into cable condition — from utility engineers and maintenance contractors to consultants managing complex infrastructure.

Our tools help reduce outages, confirm installation quality, and plan maintenance with confidence, across everything from industrial feeders to HV transmission lines.

Do you offer support or training for your products?

Yes. Every Megger product is backed by technical experts who provide setup assistance, operator training, and testing guidance.

Support can be delivered on-site or remotely and includes walk-throughs for real test sequences, troubleshooting advice, and tips to get the best performance from your equipment.

What kind of warranty and after-sales support does Megger offer for its cable tools?

Megger provides full warranty coverage, access to global service centres, and lifetime technical support.

If a unit needs servicing or an update, our support team can help you diagnose issues, repair equipment quickly, and keep your testing schedule on track — minimising downtime and disruption.

Can Megger products handle long cables or unique installations?

Yes. Megger designs systems specifically for demanding cable scenarios — including long cable runs, high capacitance, subsea networks, and underground installations.

Models like the VLF Sine 62 kV and TDS series deliver the power, test range, and portability needed to handle non-standard cable layouts and challenging environments with ease.

Get expert advice or request a quote

Choosing the right test system can be complex — but our team is here to help. We’ll match your application to the most suitable product, walk you through the key capabilities, and provide a quote tailored to your needs.

If you're preparing for a project or upgrading existing equipment, we’ll make sure you have the right information to move forward with confidence.

Request a quote or get expert advice