A RCD is an electrical wiring device that disconnects a circuit whenever it detects that the electric current is not balanced between the energized conductor and the return neutral conductor. Such an imbalance may indicate current leakage through the body of a person who is grounded and accidentally touching the energized part of the circuit. A lethal shock can result from these conditions and in some cases can lead to death. RCDs are designed to disconnect quickly enough to prevent injury caused by such shocks.
We rely on RCDs to protect us but like all electrical components eventually they can fail and without regular testing we have no idea if they will actually protect us when we need them to, the life they don’t save may be yours or one of your workers.
We can test all your built-in and portable RCDs and make sure they comply with the New Zealand regulations and to ensure your workplace meets OSH standards.
We will test to make sure all your RCD devices will disconnect the power within their required time (milli seconds) and under the maximum tripping current (milli amps).