How do Residual Current Devices (RCDs) work?
Residual current devices are electrical protective devices that can prevent electrical fires and electrocution, but how do they work?
RCDs monitor the current running through the positive conductor and then returning through neutral conductor, if the difference between these two values is not zero it means there is a current leak in the circuit, and the RCD will automatically shut off the power as a safety measure.
These protective devices come with a range of different fault current tolerances and can operate in less than 30 milliseconds when a fault occurs, this response time can not only prevent damage to devices, but also be life-saving.
RCD protection is a key part of a safe electrical installation, if you don’t have it installed, please don’t hesitate to get in touch today!
