Most recent homes have additional protection in the form of residual current devices (RCDs). These have been compulsory in new installations since July 2008, and recommended for most socket outlet circuits in homes for a number of years, particularly where the outlet is used for equipment outdoors. An RCD detects currents which flow between the live or neutral wire and ground, as opposed to normal currents which flow between live and neutral. Such currents occur when there is a fault condition, such as a short circuit – which may be due to human contact – and turn off the current in a short time. If you do not already have RCDs protecting your home then it is well worth consulting a reputable electrical contractor about having them fitted.