This video demonstration from Doepke shows the result of low level leakage current tracking across a 50mm section such as roof truss in a building.
A correctly selected RCCBs can greatly reduce the risks associated with Phase to Earth Leakage currents. Guidance on the selection and installation of the correct rating and type of RCD is covered in the IEE wiring regulations.
For more information visit: www.doepke.co.uk
