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Installation short circuit - How to find a short circuit in the apartment's

tomek003533 35352 15
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
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  • #1 13929988
    tomek003533
    Level 1  
    I have a problem with the electrical installation, when it comes to sockets, everything is ok, but when you turn on the eska from the light, it blows out the fuses. When I disconnected individual cables from the escutcheon, I found out that there is a short circuit in the kitchen, bathroom or toilet. However, I have a question for you, how to find a wire that causes a short circuit? Thanks for the answers.
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  • #2 13930008
    Anonymous
    Level 1  
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  • #3 13930108
    stonefree
    Level 27  
    Have you checked the lighting fixtures?
  • #4 13930441
    zbich70
    Level 43  
    tomek003533 wrote:
    how to find a wire that causes a short circuit?

    Maybe with an ohmmeter?
    And preferably using an electrician with an ohmmeter.
  • #5 13930456
    stonefree
    Level 27  
    zbich70 wrote:
    Maybe with an ohmmeter?
    Good joke :)
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  • #6 13930616
    mrst
    Level 18  
    stonefree wrote:
    zbich70 wrote:
    Maybe with an ohmmeter?
    Good joke :)

    So what?
    Ammeter?
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  • #7 13930669
    zbich70
    Level 43  
    stonefree wrote:
    zbich70 wrote:
    Maybe with an ohmmeter?
    Good joke :)

    Maybe a friend will clarify what made him so funny.
    Because a short circuit is usually characterized by low resistance. And an ohmmeter is used to measure the resistance.
  • #8 13930677
    lukiiiii
    Level 29  
    Certainly not with an ohmmeter from a multimeter.

    Moderated By Łukasz-O:

    3.1.11. It is forbidden to publish entries that do not contain substantive content, contain harmful advice, advice that is not an attempt to solve the problem, and the publication of identical entries consecutive or repeating information from the discussion.

    My patience is starting to run out.

  • #9 13930681
    Łukasz-O
    Admin of electroenergetics  
    lukiiiii wrote:
    Certainly not with an ohmmeter from a multimeter.

    What ohmmeter? Clarify when you undermine.
  • #10 13930691
    zbich70
    Level 43  
    lukiiiii wrote:
    Certainly not with an ohmmeter from a multimeter.

    And why not?
    You just need to be able to interpret the values it shows.
  • #11 13930711
    lukiiiii
    Level 29  
    I meant a resistance and insulation meter with a sufficiently high voltage.

    What is there to interpret if the multimeter ohmmeter shows nothing? Well, unless it is a metallic short circuit, but we already know it, incl. by knocking out the eska.

    And by the way, what are these measurements for? We know the circuit on which the short circuit is, the question of finding it, that is, looking at cans, lamps, wire damage.
  • #12 13930863
    serwisor
    Level 29  
    tomek003533 wrote:
    When I disconnected the individual cables from the eska


    How many of these wires come to this "eska"?
    How many are leaving?

    How do you know that the one you are holding in your hand is from:
    tomek003533 wrote:
    that there is a short circuit in the kitchen, bathroom or toilet.


    And why all these rooms on one security?
    Is it "just" light?
    What kind of installation?
    Does this "eska" have any markings on it? And it certainly does.

    Are these installations protected by RCD?
  • #13 13930877
    stonefree
    Level 27  
    zbich70 wrote:
    Maybe a friend will clarify what made him so funny
    Of course - the location of the short circuit without opening the cans and unfastening the lighting fixtures with an ohmmeter made me laugh. Rather, I would disconnect the neutral wire and use the phaser to search for where the wall begins to "hum" over a larger area, and where it stops :)


    Moderated By Łukasz-O:

    Suggesting to disconnect N with L attached deserves a warning. So I warn you verbally, one more harmful advice on any topic in this section will result in a painful reward.
    Regarding the first part of the post. A colleague zbich70 recommended only the measurement method. He clearly mentioned the ability to interpret the measurement result. Disconnecting light sources or disconnecting parts of the circuit is probably obvious. If someone does not know this or is a layman in this field, he should call a specialist.

    3.1.11. It is forbidden to publish entries that do not contain substantive content, contain harmful advice, advice that is not an attempt to solve the problem, and the publication of identical entries consecutive or repeating information from the discussion.

  • #14 13930944
    Miniax
    Electrician specialist  
    stonefree wrote:
    Of course - the location of the short circuit without opening the cans and unfastening the lighting fixtures with an ohmmeter made me laugh. Rather, I would disconnect the neutral wire and use the phaser to search for where the wall begins to "hum" over a larger area, and where it stops :)


    Great idea. Apart from the fact that if the cable in the wall was not exposed to mechanical damage (e.g. drilling), the probability of its damage is practically zero. It is, not knowing the type of damage and short circuit, that you suggest to turn on the phase and let the author's current go somewhere.

    gromleon wrote:
    If you have the lighting turned off (switches in the wall), the failure is in front of the rooms you are writing about. There are probably still junction boxes where the circuits are splitting, so disconnect there and keep looking.


    This is not true. We know nothing about installation.


    On the other hand, the author should be asked a question first. Were any modifications / connections made to the installation in the short period of time preceding the failure (e.g. replacement of a connector, replacement of a lighting fixture) or were there any drilled / forged walls or anything else in the premises that could disturb the condition of the installation?
  • #15 13931041
    lukiiiii
    Level 29  
    Another question for the author: are all the switches working properly, has the contacts clumped together due to a short circuit caused by a burned out bulb (arc), which caused a short circuit in its plastic housing?

    Do the bulbs make a short circuit by screwing in? (cheap plastic lamp holders)
  • #16 13931243
    zbich70
    Level 43  
    lukiiiii wrote:
    Another question for the author

    No more questions are needed here.
    And you certainly do not need the advice of IT specialists "specializing" in the electrical industry.

    The author is a layman in this field (as well as some advisers), so the suggestion to call a specialist is the only one that can be given and the topic closed.
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Topic summary

The discussion revolves around diagnosing a short circuit in an apartment's electrical installation, particularly affecting lighting circuits. The user reports that fuses blow when the light switch is activated, indicating a potential short circuit in the kitchen, bathroom, or toilet. Responses suggest checking junction boxes, lighting fixtures, and the condition of wires. Some participants recommend using an ohmmeter or a resistance and insulation meter to identify low resistance indicative of a short circuit. Others emphasize the importance of understanding the installation's history, such as recent modifications or damage. The consensus leans towards consulting a qualified electrician for safe and effective troubleshooting.
Summary generated by the language model.
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