The residual current device (RCD) is used to detect earth fault currents and to interrupt supply if an earth current flows. The main application is to prevent electrocution but RCDs can also be used ...

When my washing machine (7 year old ) was running yesterday it trip the breaker ( that one ,first on the left , RCD i guess?!) and no power in home. We reset the trip and the same happened twice more ...

To rcd or not to rcd, that is the question? Whether it is better to fit and forget, or to understand and correctly select and apply the correct device? With apologies to William Shakespeare, these are ...

Daisy chain lighting is usually employed in specific situations; here, Davis explains why and where, “The main reason for daisy-chaining lights is to simplify an installation and reduce the amount of ...