Stava cercando di sostituire una lampada e arrivò a questo casino. I due cavi (neri e blu) erano collegati alla vecchia lampada. C’era anche un cavo giallo/verde macinato che era attaccato alla vecchia luce ma quando non era collegato a nulla sul muro. Per quanto posso dire che il cavo neutro blu è legato a circa 4 verdi/gialli. Il cavo Black Live sembra essere legato ai cavi neri giusti, ma sono in perdita su cosa fare e dove collegare la nuova luce. Anche dove mi metto a terra e il cavo neutro blu dovrebbe essere collegato altrove? Qualsiasi aiuto sarebbe apprezzato!
https://i.redd.it/ummh2ylybegf1.jpeg
di Few_Perception4219
3 commenti
Not an electrician so take my words with caution, but it seems that “Klassische Nullung” is applied here, there’s no actual separate PE conductor, it’s simply shorted to N. While this is lacking important safety features of a proper PE terminated at a star grounding point, it’s rather common in old buildings. In any case, whenever there’s doubt I’d definitely get professional help.
Electrician here: if you’re absolutely unsure get professional help! BUT be aware that they’ll charge you seriuous money (up to 100€ including driving to your adress etc.) for a very minor job.
I, personally, would just connect blue to blue, black to black (or brown) on the counter part of the new light just like it was on the old one and be done. PE (green/yellow) not there is what the other person called “klassische nullung” and is old stuff protected by the nice word of “Bestandsschutz”… Make sure you turn off the fuse before handling it (but I guess it’s off anyway when you have the wires hanging around like that). It’s nothing too complicated and if you are a bit handy it’s a piece of cake.
You’d be certainly surprised. There is a sub for this. But the usual advice you’ll get there is “call an electrician”. So, you heard it here first.