How To Find An Earth Fault On A Ring Main. I am trying too understand how to find a fault on a ring main circuit. Since this is a ring circuit there will be two of each in the same terminal.
A few of the rooms have spurs added in at a later date with trunked cable above the skirting board to serve additional sockets. This is a typical ring with a fault on it causing a short between live and earth for example The first thing to do is split the ring at the mid point or as close as you can get The mid point of this ring is socket 7 so you would remove that socket front making sure all of the wires are seperate. Using a Megger MFT tester Marcus sets about finding an open circuit af.
I have read about splitting the ring finding which end has the fault test again until the fault is found.
This incomer feeder is given with the provision of bushing protruding from the enclosure of RMU for supply cable connection. If it is within a well-designed appliance it will be inconvenient. I know the basics when trying to find a fault like taking one side out of the cu and testing along the ring to locate the fault. The first thing to do is to check your ground fault circuit interrupter to ensure that there are no faults from it.
