phil d
Well-known member
Given that a lot of the time when we find problems such as a loss of earth, or a high earth loop value it's quite often down to the supply cable (incomer) I wonder why nobody has come up with a module to fit in a CU and monitor the earth, it wouldn't be that hard to do and I feel it would have a better acceptance than those stupid AFDD's that are being pushed at us.
I have one of those Kewtech test plugs, that as well as testing the wiring configuration also tests the loop value, now I know it only has 3 lights, red, orange and green, and the lights come on at different values (iirc the green lights sub1.5ohms). Now I'm well aware that they are no substitute for a proper meter and a measured value when doing an inspection, but they are useful in between proper tests, I use mine at the farm to periodically randomly check sockets as I'm walking around, I know the values were correct when last tested, so if I get a green on the plug in then it's still good, it's just a quick test. Now if we had something similar that was in a CU, even if it was just a red and green light, it would at least allow people to keep an eye on their earthing, and surely that has to be better than some useless AFDD, that we know isn't going to do a lot most of the time.
I have one of those Kewtech test plugs, that as well as testing the wiring configuration also tests the loop value, now I know it only has 3 lights, red, orange and green, and the lights come on at different values (iirc the green lights sub1.5ohms). Now I'm well aware that they are no substitute for a proper meter and a measured value when doing an inspection, but they are useful in between proper tests, I use mine at the farm to periodically randomly check sockets as I'm walking around, I know the values were correct when last tested, so if I get a green on the plug in then it's still good, it's just a quick test. Now if we had something similar that was in a CU, even if it was just a red and green light, it would at least allow people to keep an eye on their earthing, and surely that has to be better than some useless AFDD, that we know isn't going to do a lot most of the time.