An RCD is a life-saving device designed to detect leakage current. In the event of detection, the device automatically disconnects the circuits being monitored. This helps to prevent the risk of a fire or electric shock.
RCDs are invaluable safety devices and are essential for anyone using or working on electricity, in either a fixed or portable environment. This encompasses a wide range of applications, from entire buildings to individual circuits and single pieces of equipment.
As per BS 7671 regulations, the vast majority of domestic circuits in the UK have been required to include an RCD since July 2008. This includes both new and rewired domestic properties and adhering to the standard is critical for safety reasons.