What is a RCD safety switch ?
Safety switches are your insurance against electric shock. They are designed to prevent injury or death.
They monitor the flow of electricity through a circuit. They automatically shut off the electricity supply when current is detected leaking from faulty switches, wiring or electrical appliances. This stops the chance of current flowing to earth, through a person, electrocuting them.
Testing and Tagging a safety switch is an inexpensive safety measure that protects everyone.
Safety Switches are tested to ensure that they trip below the allowable maximum tripping time in accordance to AS 3760:2003 Table 3
Although safety switches are a proven method of preventing serious electric shock, they are not a substitute for proper electrical maintenance and safe work practices