I find it quite bizarre that DLM wouldn't keep records making it very clear it was SHINE and that they wouldn't check for that BEFORE spending money on new lines. I guess its because line replacement is standard and getting people out with RF detectors is not, so more expensive?
As always, with any situation .... you have to actually have been there to see the whole picture unfold.
I'm probably guessing that in the early stages of the fault-finding, various faulty lengths of cable were found and replaced as a result of our suite of tests we have to carry out. Raising a REIN/SHINE case shouldn't take place until the customers circuit passes all these tests.
Being a tiny, rural village in Wales, it wouldn't be surprising to hear that there were many minuscule length faults dotted about all over the place on a probable very lengthy run of cable ??.
Being a REIN engineer myself, I can tell you now SHINE is the one fault where you want to ring in sick, they are awful things to find. The DLM data may well have captured the snap-shot in time moment, but again ... if faulty cabling was initially thought to be the issue, it could quite easily have been dismissed as high frequency ingress due to the time of day, in that people start to get up and switch electrical items on ... in other words a surge of interference.
The worst one I had was a clocking in machine on a massive industrial estate that when switched on (circa 0550 each morning), it knocked out all other circuits in the area just for that one event. They were absolutely fine for the rest of the day.
As I say, 'we' can be very quick to judge based upon simply reading an article. Done it many times myself.