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What is an RCD?


An RCD is a life-saving device that protects against dangerous electric shocks and reduces the risk of electrical fires. RCD stands for Residual Current Device. This is a sensitive switching device that quickly turns the electricity off when danger arises to reduce the risk of death or serious injury.


Why do we need RCDs?


Every year in the UK the Fire Brigade is called to over 10,000 incidents attributable to electrical faults. Half of these incidents are in the home and result in some 500 serious injuries and approximately twenty fatalities. Added to this, there are close to ten fatalities every year due directly to electric shocks; as well as a large number of serious injuries.


Residual Current Devices (RCDs) are electrical devices which when incorporated into an electrical installation, will provide the highest degree of protection against the risks of electrocution and fire caused by earth faults.


PowerBreaker Socket RCDs offer MFBL (Make First Break Last) technology, which is critical to avoid upstream RCD nuisance tripping at the consumer unit.


GreenBrook continues to develop high performance products for use in every situation, so that the name


Did you know....


• RCD is a generic term for all Residual Current Devices, which there are three types: Fixed, Portable and socket


• RCDs are available as both Active (Requires resetting after power failure) & Passive (Does not require resetting after power failure)


• Point of supply and point of use all need RCD protection • BSEN standards require RCDs to trip within 40 milliseconds at 5 x rated trip current • The new generation of RCD Sockets by PowerBreaker will trip in less than 20 milliseconds • The 17th Edition recommends use of RCDs for sockets as well as consumer units and circuits


• IET Wiring Regulations 415.1, 411.3.3, 522.6.202 & 522.6.203, 701.411.3.3, cover applications for RCDs


• RCDs detect very low earth leakage current, as low as 10 or 30 milli amperes depending on the model


Interesting Safety Facts....


• 13 million homes (50%) in the UK still have no RCD protection at all • Approximately 10% of all fires are caused by electrical faults


• Many of these incidents could be prevented by using RCDs


Always ensure that suppliers can back up claims with authentic certification - ask to see their test certificate.


3


remains eponymous with residual current devices and the protection of life.


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