The fuse disconnects the circuit, without an obvious short circuit.

Hello, we have a problem with the type of Czech movie.
Namely, some time ago I was renovating the hallway and kitchen. I had 2 sockets moved and sockets and contacts replaced with new ones. And after this renovation, for no reason, the cork from the sockets began to fall out of me. And what's strange, the cork crashes at minimal load, i.e. at night, although it also happens during the day that it will fire. What's strange, when the cork shot, I approached it and turned it on and the electricity was still on, sometimes it just happened that it knocked me back, but after a dozen or so seconds I turned it on and everything played. So basically I ruled out that any device was making a short circuit.

I have a board with old automata, which is a black piedol that looks like a fuse, but it's an automaton. And I thought that he was already tired and just let go, but two days ago I connected the fuse that is used now, i.e. the switch. Two days later (which is today) the cork broke again. And when I turned it on, it sparked and it bounced back. After a few unsuccessful attempts, I waited again for several seconds and since then the cork has not broken.

WHAT can it be?

If it was a short circuit in the installation, I could not turn on the plugs until the fault is removed, but I turn on the plug and for example: 2. 3 days is ok.
Somewhere I heard that there are some courts that can be connected to the installations and I will show you where the kuku is.

Please help, because I have absolutely no idea what's going on.

maybe you have welded 2 wires in the wall and with a slight overload there is a breakdown between the wires

you need to call an electrician who will measure the insulation resistance of the wires and generally look at your flowers.
The topic is very fast, unless you want to start a fire

Just as I wrote, the cork crashes when the load is minimal. How is the dishwasher or electric stove turned on? Does the washing machine have such situations that it knocks out the plugs. So overloading doesn't matter here. I think so.

Note under what conditions the fuse breaks the circuit. Perhaps it does it when there are some specific external conditions - high air humidity, etc. There is probably a breakdown somewhere between the wires.

Hello, as written February 49 you probably have damaged insulation on the wires somewhere, it can be, for example, fresh wet plaster + a nail in the wire.

The conditions are different every time. I have considered various variants. It always happens when you least expect it. I'm getting suspicious that my neighbor may be tapping into my lines. Only that it happens so unexpectedly that I am not able to check if the meter does not fly like a fool before removing the cork. I would have to mount a camera in front of the counter. Just how to check if it got into my installation.

What about fresh plaster, I finished the renovation a month ago, so the cekol on the walls and the tile glue have long since dried up.

As an educational introduction:
You're not an electrician. Your knowledge of what you present is also small, so I advise you to rely on a specialist.

As colleagues wrote above, the installation has a serious defect somewhere or the circuit has some branch that you do not take into account.

The basic measurement to find out what the problem is is to measure this instantaneous surge current, which will not be easy if it occurs in an unpredictable way (a counter is a bit too little). Next, it would be necessary to check the current consumption in the state of the assumed rest of the receivers. As it was written earlier, it is possible that the installation itself is an energy receiver and, when additionally loaded, causes the protection to trip.

If anomalies appear, disconnect the end parts of the installation one by one and in this way reach the place of damage.

I am writing here about measurements that can be done by an amateur using very basic measuring equipment.

Hello

I have a similar problem, I hope you will help. I have old screw-in plugs and I noticed that something "sparked", i.e. as if there was a short circuit. My husband unscrewed the plug and it turned out to be hot. About a month ago when drilling in the wall it crashed plugs, it turned out that we found a cable that should not be there. However, we replaced the plugs and I thought everything was ok, and now I hear these "shootings" Could it be what you write, that the cable insulation in the wall was damaged during drilling and hence the shooting. And what will you have to do in this situation, forge in the wall and connect the cables??? Is it possible to infect it somehow?? a little insulation, it's okay. I don't know if it's from that, but I thought the current flows and this insulation is not so necessary. I know it's funny, but I'm a woman not at all I know. Please help what can it be b live???

It looks standard: an old aluminum installation in which the contact loosened and fell on the fuse holder. Inspect, clean, tighten. It's better to have an electrician do it, because you are unlikely to disconnect the voltage from the fuse holder.

Thank you for this quick information Yep, that's the old setup
So you don't have to forge in the wall??? Will you be able to do it as you write??? and those cables with possible damaged insulation do not affect it??? If you do what you say, it will be ok??

Added after 4 [minutes]:

Thank you very much, but I'm glad you don't have to hammer in the wall I'll deal with it tomorrow, i.e. looking for an electrician. Do you know if such a repair is expensive??

Since "these shootings can be heard at the fuses" then colleague krzychol66 has already given the answer. If so far there have been no problems with the section of the installation that has been "drilled", it is likely that there will still be no problems unless the wire itself is damaged in addition to the insulation - then a disaster may occur if this section of the installation is overloaded. Damage at the fuses must be checked and repaired by an electrician, perhaps the wires have already been seriously damaged, the fuse holder as well.

If it's a simple glitch, it should close around PLN 100.

[quote="Lutek49"]Since "these shootings can be heard at the fuses", colleague krzychol66 has already given the answer. If so far there have been no problems with the section of the installation that has been "drilled", it is likely that there will still be no problems unless the wire itself is damaged in addition to the insulation - then a disaster may occur if this section of the installation is overloaded. Damage at the fuses must be checked and repaired by an electrician, perhaps the wires have already been seriously damaged, the fuse holder as well.

Well, I'm not sure if the wire wasn't damaged during drilling.
And the wires that, as you write, were damaged near the fuse, or are you talking about the ones in the wall??

As a result of overheating, the wires at the fuses may have been damaged.

Welcome gentlemen

An electrician from the cooperative visited me today, he buried something in the fuses, screwed something up and says it's ok Something has come loose there, as you wrote. Fortunately, it probably has nothing to do with this "drilled" cable.
Thank you for your help, how good that we have the internet today and good people to advise.

Let the electricians first bring the fuse socket to the proper condition and then measure the insulation resistance with a M?-meter and then you will know what its condition is, if it is bad, it means that suspicion will fall in the first place, at the place of the fault that was created by drilling with a drill in an unlucky place (wire).

Good luck

I see you must have been visiting while I was writing my post MR. ELECTRICIAN - DOCTOR

Well, I guess it's fine It took him about 3-5 minutes, and it was from the cooperative, i.e. for free, because it turned out that in my building they are responsible for it I hope he did the right thing, if anything happens I'll keep calling them.
Thanks again for the advice