In this online electrical lesson, learn the minute differences between an RCD (Residual current device) and an MCB (Circuit Breaker). As an electrician, you should be able to make the call as to what’s good for your customers.

Residual Current Device is a type of a circuit breaker that cuts off current when it detects an earth fault from live back to the neutral. In this online electrical technical business lesson, learn everything you need to know about RCDs.

What is the MEN system installed across Australia to ensure electrical safety? How does it function and why it is important? In this article, you will learn about the Multiple Earthed Neutral system -- a crucial component of electrical installation and safety in Australia.

Have you ever been at a loss while trying to locate an electrical fault? Implement the VRI Fault Finding Principle to find electrical faults quickly. It will help you to impress your customers and boss. You will feel good, too. Ready to be a champ?