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Which power cable should I choose for the garage and is 5x2.5 enough?

luk009 37407 17
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 19906645
    luk009
    Level 5  
    Hello. I searched a lot but I can't find it.
    I'm doing a new installation in the garage and I have a related question. What kind of cable should I put in the garage, I mean the cable in the garage, the cable from the switchboard in the garage to the power socket? Is 5x2.5 enough? I don't know what I will use at the moment... Sometimes a circular circuit is connected.
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  • #3 19906679
    karolark
    Level 42  
    What is the cable length?
  • #4 19906769
    luk009
    Level 5  
    Which power cable should I choose for the garage and is 5x2.5 enough?

    I have a C25 at home, a C16 in garage no. 1 (I can always modify it) and in garage no. 2 I am also planning to build a switchboard and from there to the furthest power socket there will be about 24 m of cable. I am thinking of making two power sockets in the garage, the first one at a distance of about 9 m from the switchgear and from the first one to the second one 15 m. As I wrote that I am making new cables and I don't know what the load will be, at the moment a circular circuit is sometimes connected (not I know what engine power. The garage will be used for private, non-industrial purposes, so maybe there will be a forced welding machine, etc.
  • #5 19907008
    krzysiek7
    Moderator of Electricians group
    How many conductors and what cross-sections do the cables supplying these garages have?
  • #6 19907270
    atrix55
    Level 26  
    krzysiek7 wrote:
    How many conductors and what cross-sections do the cables supplying these garages have?


    He wrote that he wanted to give 5 x 2.5 mm.

    How long will the power line be and what will the total load of the receivers be?
    What protections are available on the 16 A or 32 A electrical connection?
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  • #7 19907292
    Krzysztof Reszka
    Moderator of Electrical engineering
    atrix55 wrote:
    He wrote that he wanted to give 5 x 2.5 mm.

    To garage no. 2, and my friend asked about garage 1 what cable he has, because it will power the second garage, logical.
    atrix55 wrote:
    What protections are available on the 16 A or 32 A electrical connection?

    luk009 wrote:
    I have C25 at home and C16 in garage no
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  • #8 19907310
    krzysiek7
    Moderator of Electricians group
    atrix55 wrote:
    krzysiek7 wrote:
    How many conductors and what cross-sections do the cables supplying these garages have?


    He wrote that he wanted to give 5 x 2.5 mm.

    I know what he wrote, I asked about what he didn't write.

    luk009 wrote:
    I searched a lot but I can't find it.
    I'm doing a new installation in the garage and the question is which cable to put in the garage I mean the cable in the garage, running the cable from the switchboard in the garage to the power socket? Is 5x2.5 enough?
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  • #9 19907340
    atrix55
    Level 26  
    In such a case, a cross-section of 2.5 mm is sufficient and the protection should be graduated. Well, 16 A and it will be OK.
  • #10 19907358
    karolark
    Level 42  
    atrix55 wrote:
    In such a case, a cross-section of 2.5 mm is sufficient and the protection should be graduated. Well, 16 A and it will be OK.

    Is it enough or not?
    The author does not know what the load, gradation and selectivity will be?
  • #11 19907801
    luk009
    Level 5  
    Maybe I will write more details that I learned and realized, so: From the board at home Es C25 - 3 fields. A 4x2.5 cable (about 6 m) goes to the box outside the house, and from there, from the box, a 4x4 cable (about 22 m) goes underground to the box in Garage No. 1, and here Es C16 - 3 poles, then from the box to Garage No. 2, a cable goes hanging 4x4 (about 12 m) and I want to make a box in garage No. 2 and insert Es, and I mean a power cable. I want to make two power sockets, the first one at a distance from the box about 9 m and a connection in this socket and then after about 15 m the second power socket, i.e. the furthest from the box about 24 m. I am also thinking about connecting the cables directly in the box in Garage No. 1, i.e. in front of In garage no. 2, make an earth connection to garage no. 2, i.e. insert an additional fifth cable and boards with ess there... And my question is, among other things, about the cable with which I will distribute the power on the walls from this board in garage no. 2 for the force sockets, which one to insert and can it be 5x2.5 or thicker?

    What kind of load is he planning, I haven't planned anything yet... At the moment, the only thing I'm using is a circular saw (I have no idea what engine it has), some kind of power welding machine, etc... But you know, I'm also wondering if I would modernize the installation someday (because it would be need), i.e. from garage No. 2 towards the house, at least garage No. 2 should have appropriate cables and then only the cables in the ground should be changed.
  • #12 19907828
    Krzysztof Reszka
    Moderator of Electrical engineering
    Buddy, run a new YKY 5X 4 mm cable? from the board straight to the second garage. Only a small inverter welder will work on this cable rosary.
  • #13 19908140
    atrix55
    Level 26  
    Krzysztof Reszka wrote:
    Buddy, run the new YKY 5X × 4 mm cable? from the board straight to the second garage. Only a small inverter welder will work on this cable rosary.



    You can also 5 x 4 mm
    At 12 m, 5 x 2.5 mm + 16 A protection is enough

    I have about 30 mb buried in 4 x 2.5 mm and I run Mig 180 A without any problems. Lathe, drill - 2.5 kW engines
  • #14 19908277
    Krzysztof Reszka
    Moderator of Electrical engineering
    atrix55 wrote:
    At 12 mb it's enough

    Buddy, did you read my post?
    Krzysztof Reszka wrote:
    from the board straight to the second garage.

    After all, you may not have noticed that;
    luk009 wrote:
    There is a 4x2.5 cable going to the house

    luk009 wrote:
    there is a 4x4 hanging cable
  • #15 19917475
    luk009
    Level 5  
    And let me ask you this. If I use a cable, e.g. 5x4, i.e. thicker, could there be something wrong, i.e. too thick, some voltage drop or something like that? Even if the previous cable that will power this 5x4 cable is thinner, does anything interfere with it?
  • #16 19917496
    Krzysztof Reszka
    Moderator of Electrical engineering
    luk009 wrote:
    If I use a cable, e.g. 5x4, i.e. thicker, could there be something wrong, i.e. too thick, some voltage drop or something like that? Even if the previous cable that will power this 5x4 cable is thinner, does anything interfere with it?

    Krzysztof Reszka wrote:
    Buddy, run a new YKY 5X 4 mm cable? from the board straight to the second garage

    It doesn't pose any threat, but what's the point of using a thicker cable if there's a thinner one in front of it? So the option I gave you is the best, put a 5x4 mm2 cable all the way from the board to the new garage, wrapping around the first garage. Always think ahead and with a certain reserve of power that comes from a thicker cable and all of the same cross-section.
  • #17 19917942
    CYRUS2
    Level 43  
    Times will change.
    You should consider charging an electric car.
  • #18 19918091
    luk009
    Level 5  
    Krzysztof Reszka wrote:
    So the option I gave you is the best, put a 5x4 mm2 cable all the way from the board to the new garage, wrapping around the first garage. Always think ahead and with a certain reserve of power that comes from a thicker cable and all of the same cross-section.


    At the moment I am putting new cables in garage no. 2 inside, especially about strength? I can't change the outside, i.e. the entrance, at the moment and it has to stay that way for some time, I mean, if I add 5x4, will it not interfere with anything? In this installation that is now there, i.e. access to the garage?

Topic summary

The discussion revolves around selecting the appropriate power cable for a garage installation, specifically questioning whether a 5x2.5 mm cable is sufficient. Key considerations include the length of the cable run (approximately 24 m total), potential loads (including a circular circuit and possibly a welding machine), and existing circuit protections (C16 and C25). Responses suggest that a 5x2.5 mm cable may be adequate for the current needs, but a thicker 5x4 mm cable is recommended for future-proofing and accommodating higher loads. Concerns about voltage drop with thicker cables were addressed, indicating that using a thicker cable does not pose risks but may be unnecessary if the upstream cable is thinner. The conversation emphasizes planning for potential future electrical demands, such as electric vehicle charging.
Summary generated by the language model.
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