What Are RCDs and also Why Do We Need Them?
1,361 ViewsResidual Current Devices (RCDs) rather unsurprisingly determine Residual Current. To understand what they do, we initially need to discuss what residual presence is. The amount of electrical energy (or more properly electric current) going into a setup (on the live supply cable), ought to correspond to the amount of current leaving the setup (either […]
