Earth Leakage in 2025: What Every Electrician Must Know

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Nuisance tripping isn’t just frustrating — it’s a sign your board could be overloaded with earth leakage.

And in 2025, with the way modern appliances are designed, it’s happening more than ever.

In this video, we take a deep dive into earth leakage and why understanding it is absolutely essential if you are fitting consumer units in domestic installs. Whether you are using split RCD boards or moving to RCBOs, leakage build up can cause unpredictable trips that damage your reputation and lead to call backs.

We will explain:

🟢 What earth leakage actually is and why it has become such a hot topic

⚫ How appliances like EV chargers, washing machines, and LED lighting contribute to cumulative leakage

🟢 What the 30mA RCD threshold really means in today’s world

⚫ How leakage can build across multiple circuits in a split RCD board

🟢 Why RCBOs offer better isolation and protection in real world conditions

⚫ The role of BS 7671 and why relying on just the regs is not enough anymore

This is not theory. These are real world issues affecting electricians on the job every day — and it is time to start designing boards with earth leakage in mind from the very beginning.

📘 Want to go deeper?This video gives you the fundamentals, but the full story — with detailed diagrams, circuit examples, and practical guidance — is in our free white paper.It is written in plain English, packed with insight, and designed to help you make better decisions on every install.

🔗 Download it here: https://www.navitascp.co.uk/downloads#white-paper

🎥 Need help choosing the right RCD for the job?Check out our video on RCD types and selection — including the differences between Type A, Type AC, Type B and more. It is everything you need to know to stay compliant and protect your customers properly.

👉 Watch now: https://youtu.be/43_wOmDZf40

Navitas. Designed to protect. Built to perform.We make high performance consumer units and protection devices — built for modern installs, backed by quality, and trusted by professionals across the UK.

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