Use an RCD on appliances used outside or in the wet
An RCD, or residual current device, is a life-saving device which is designed to prevent you from getting a fatal electric shock if you touch something live, such as a bare wire. It can also provide some protection against electrical fires. In the event of a fault the RCD will switch off the electricity supply, protecting the user The RCD is designed to protect the user from the risk of electrocution and fires caused by [...]

