Residual Current Device (RCD) testing requirement for electrical equipment are covered under AS/NZS 3760:2010 & AS/NZS 3012:2010 standards. An RCD (Residual Current Device) is a safety device that disconnects an electrical circuit when it detects an imbalance of the electric current. RCD’s provide a means of early fault detection. The RCD turns the power off almost immediately to prevent electrocution and reducing the risk of serious injury. RCDs also protect against fire caused by faults in appliance, tools and wiring. If these devices are faulty and not tested they could cause a fire, or personal injury. By law most work places have a Residual Current Device (RCD) testing requirement for electrical equipment under AS/NZS 3760:2010 & AS/NSZ3012:2010 standards.