Why does the socket crack when you insert the plug into it?
Good afternoon. When the neighbors plug into the outlet, the outlet begins to crack. Is this a problem in our outlet? And what needs to be done? Is it dangerous?
Good afternoon! You know better, in whose outlet the problem! You need to remove the outlet and see. Most likely the sockets are combined, i.e. installed in a through hole between two apartments and there may be a problem with the neighbors. Yes, it’s dangerous. It is necessary to strip the wire and stretch the contacts in a faulty outlet.

