For what purpose, are you trying to find a fault before it occurs
For example, on a brand new installation, suddenly you see that there are like 5V on an earth-neuter contact. When there should be at most 1-2V. Why so? This is part of a regular test for continuity.
But then I find that there are like 10mA due to harmonics in the circuit. I know that as soon as it reaches 15mA the RCD is going to trip. Why there are like 10mA if there should be at most 1-2mA on the network? It would be nice to find the source of the issue.
Maybe I see this like a regular blood analysis: you might have all parameters in order, but suddenly, you see that cholesterol levels are slightly high, so better warn than curing?
Probably this is too much of a hassle for most.
only real thing to add to EICR's would be thermal imaging, but not many people have thermal cameras to do that anyway
Interesting this one. I saw some docs regarding this topic but have not gone deeper. Have you experienced with this?
Recently, they set a 6mm2 for the grid-panel connection on a friend's house, with 9kW and the technician told them that it was not worth to put the 10mm2 even though under the rulings it says that for 40A+ there should be 10mm2 at least (funny that he signed the certification with a 10mm2 cable)
I wondered the heat that those cables are picking when they went above 7kW
the guy who drives the forktruck but also 'fixes' stuff around the site
Trust me, there are certified technicians worse than that guy. Electricity rules are always progressing, and many guys with 20-30 years in the business, are now completely obsolete or think that the rules are a whim, so they keep building things the same way they did 30 years ago, and many sign certifications without caring about the reality of what they installed (as I mentioned in the previous paragraph)
Yesterday I was discussing with this man, that the SPD was mandatory nowadays, at least highly recommended since first in 2004 draft and officially mandatory after 2013 (at least in my country), and the guy replying me that lightnings only ocurr in certain parts of the USA and neuter issues in the grid are almost impossible, so setting such SPD was a waste of time and money (another certified technician)
I'm also setting my checklist because I want to give it to the technicians to check and sign. Here in my country at least this is not mandatory to be done explicitly. This is something that is implicitly known to be done, but the reality is that this is rarely done (at least not as thoroughly as I would like). Maybe I'm too picky, but personally, I would conduct a test of every single socket to check if there is right continuity. Some don't even check if the plug is working... imagine checking continuity.
Also, many technicians work with unattended apprentices, and they sign despite the work of them. This is very intricate and I have difficulties trusting by default.
Again no need for any further tests. Experience is going to tell you if your potentially going to have issues with voltage drop, then it's down to you to explain the non compliance to the client.
As I said, I'm not concerned about signatures and certificates. This is something personal.
