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residual current device

   Also found in: Dictionary/thesaurus, Acronyms, Wikipedia, Hutchinson 0.01 sec.
residual current device
A circuit breaker that trips when there is a difference between the amount of current in the hot side and the neutral side. Also called a "ground fault circuit interrupter" (GFCI) and an "appliance leakage current interrupter" (ALCI), the current imbalance implies a leakage to ground or another circuit. Residual current devices (RCDs) are typically built into a wall outlet and are required for wet areas, such as bathrooms and kitchens, where electrical appliances can come in contact with water.


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The Royal Society for the Prevention of Accidents (RoSPA) said electric mowers and other power tools should always be used with an RCD - residual current device, which would cut off the power quickly in the event of an accident.
Mr Whittall, a builder, had raised the issue of installing a residual current device - a safety trip switch - on part of the circuit with Mrs Thompson.
Check your power tools for any defects, especially the leads, and invest in a residual current device if you'll be using the tools outside.
 
 
 
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