Safety switches are a “must have” for any home or business. They greatly reduce the risk of electric shock by detecting electrical fault conditions and once detected will switch off the power on the circuit. Also know as residual current devices or R.C.D’S, safety switches are surprisingly often are found not to be installed on many switchboards in older inner western Sydney homes. The cost of installation is typically only a few hundred dollars (contact us and we will be happy to offer a firm quotation on R.C.D. installation for your property) and these devices could literally save a life, so it is a very small price to pay for a high degree of electrical safety in your property. Safety switches operate by sensing any difference of current (differential current flow) between the active and neutral circuits. If there is a difference detected the safety switch cuts the power on that electrical circuit. They operate extremely quickly – typically in around 10 to 30 milliseconds, which, in comparison with the human heartbeat, is very fast and avoids possible electrocution. An R.C.D. does not totally mitigate electrocution risk and it is important to remember this and always treat electricity with the respect it demands.
Regular Testing Of R.C.D.’s
Most safety switches have a test button that should be used to test the device once every 3 months. It is also a smart move to have a licensed electrician thoroughly test your safety switches regularly and assess the overall safety of your premises electrical circuits at the same time. This is particularly applicable in older buildings.