3 Lead RCD Test in the Consumer Unit on RCBO's Saving Time During the Live Testing's Process Student training aid for testing an RCBO rated at 30mA using a MFT Megger tester. Includes a full demonstration of how to test the RCBO using 3 leads from with the consumers unit. Note my default position is always 3 lead testing as it’s my preferred method of testing for Earth Fault Loop impedance when RCD protection is present. 2 lead tests can also be carried out for both testing RCDs and circuit Impe

How to Carryout the RCD Ramp Test - Why Does my RCD Keep Tripping What can you do when faced with an RCD that keeps tripping. In this video Marcus explains how to carryout an RCD ramp test. This test can prove if an RCD is oversensitive by showing the electrician the amount of earth leakage current in milliamps that it takes to trip the installed RCD. Marcus carries out the ramp test from the load side of the RCCB with the MCB's OFF therefore removing all the loads in circuit. Videos are trainin

How to beat nearly any RCT2 scenario with just 4 tiles