Precautions while using Electrical Equipment
Use Residual Current Devices
Use Residual Current Devices (RCDs) for extra safety An RCD can provide additional safety. An RCD detects some (but not all) faults in the electrical system and rapidly switches off the supply. The best place for an RCD is built into the main supply or the socket outlet, as this means that the supply cables are permanently protected. If this is not possible, use a plug incorporating an RCD or a plug in RCD adaptor. RCDs for protecting people have a rated tripping current (sensitivity) of not more than 30 milliamps (mA).