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Max Load for 3x1.5 Wire: Electrician Dispute - 4400W Appliances, 20A Fuse, 7-meter Cable Length

real_romek 170845 12
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
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  • #1 10103942
    real_romek
    Level 10  
    Hello. I am writing here because I have an electrician problem. They installed a surface-mounted socket for me in the kitchen and connected it with a 7-meter long 3x1.5 cable in a strip to a 20-amp fuse. The oven and dishwasher are to be connected to it, together max. 4400W. I found a table that says that for such a cable, max. load is 15.5 A. Electricians initially agreed to replace, but finally came with their own table which said that the maximum load was 22A. Who is right then?
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    #2 10104176
    kasprzyk
    Electrician specialist  
    In addition, the protection of this circuit is max. 16A, even with this protection, you can already exceed the permissible long-term load on the cable.
    For a kitchen, 2 separate circuits of 3 * 2.5mm is the minimum.
    Kisses
  • #3 10104199
    real_romek
    Level 10  
    Can I ask for a reference for some paper that I could show to the electricians?
    Please correct your spelling. Also in the previous post. [kkas12]
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    #4 10104309
    elpapiotr
    Electrician specialist  
    Hello.

    But of course: PN-IEC 60364-5-523: 2003
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    #6 10105729
    kasprzyk
    Electrician specialist  
    B2 - 15A - but in your case there are two loaded wires, not three, look for two wires.
    kisses
  • #8 10105947
    real_romek
    Level 10  
    Okay, I will. Meanwhile, I discovered that electricians presented me with the standard according to PBUE, which in some way no longer applies, but now the standard mentioned by my colleague above is in force. Generally, the new standards are more restrictive. How do electricians apply to such standards, or do they have to comply with them?

    PS. Thanks for the table, I don't have to search anymore;]
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    #9 10106024
    kkas12
    Level 43  
    All clear?
    Thanks given?
    If so, the topic needs to be closed.
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    #10 10106071
    kasprzyk
    Electrician specialist  
    It is about the safety and functionality of your installation, a 3 * 2.5mm wire should be laid.
    It is true that the devices you describe are not used continuously, but it's better to be safe than sorry.
    If the electricians insist on their own - ask for a protocol of measuring this circuit, you will pay some extra money, but you will have a "paper" which, in the event of an accident, will be your defense card.
    Kisses
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    #11 10106086
    GBW
    Level 31  
    Wires are one problem and the other is fuses.
    You do not write anything what type of security you have, so I will assume that it is S B20.
    This protection starts working only at 1.14In, i.e. 22A, the Idd current is not enough.
  • #12 10106199
    real_romek
    Level 10  
    Idd is not enough, i.e. the cable heats up and the fuse will not work? Well, the whole thing broke down about the fact that they brought me this table that will last up to 22A. They probably know what the standards are, but they decided that it would be ok because I will rarely use both devices at the same time. Thanks to everyone for your help, I have some arguments thanks to you, best regards, we are closing the topic
  • #13 10108147
    Akrzy74
    Rest in Peace  
    And no one reads the ads in the section anymore? Link
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Topic summary

The discussion revolves around the appropriate load capacity for a 3x1.5 mm² cable connected to a 20A fuse, intended for use with a kitchen oven and dishwasher with a combined maximum load of 4400W. The user highlights a discrepancy between two tables: one indicating a maximum load of 15.5A and another suggesting 22A. Responses emphasize that the maximum load for the cable should be 15A under the applicable standards, particularly for installations with two loaded wires. Participants recommend using a 3x2.5 mm² cable for safety and suggest obtaining a measurement protocol from the electricians to ensure compliance with current standards. The conversation also touches on the implications of fuse ratings and the importance of adhering to updated electrical standards.
Summary generated by the language model.
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