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residual current device

Line breaks: re|sidual cur|rent de¦vice

Definition of residual current device in English:

noun

A current-activated circuit-breaker used as a safety device for mains-operated electrical tools and appliances.
Example sentences
  • He said the warning to immediately install the safety switch or residual current device came after the electrocution of a young mother and her child this month.
  • Fit a residual current device, RCDs can reduce the risk of electrocution by cutting the power supply if an electrical tool malfunctions or a cable is cut.
  • The regulations require that a residual current device installed at a workplace shall be kept in a safe working condition and tested on a regular basis by a competent person to ensure its continued effective operation.

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