Electrical wiring in the United Kingdom lawnmower does it need an RCD?" The risk of electrical shock on construction sites can be reduced by several measures, including reduction of the normal 230 volt distribution voltage to 110 volts for electrical lighting and power tools. By using a centre-tapped transformer, each conductor of the circuit is only at 55 volts with respect to earth. This reduces the chance of dangerous electrical shock when using power tools in wet locations. Where 230 volts must be used, a residual current device (RCD) can be used to detect small leakage currents and automatically isolate faulty equipment. In sites where hazardous
RCD Espanyol cantera RCD Espanyol cantera The cantera ("quarry") of Spanish professional football club RCD Espanyol is the organisation's youth academy, developing players from childhood through to the integration of the best prospects into the adult teams. The final category within the youth structure is the "Juvenil A" under-18/19 team which represents the club in national competition. The successful graduates then usually move to the club's reserve team, Espanyol B, which is also considered part of the cantera due to being a stage in progression towards the senior team, albeit competing in the adult league system. The academy is based at the club