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Cross-Section & Maximum Current Capacity of Internet Twisted-Pair Cable: Insulation Removal Issues

smartfon 34332 17
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
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  • #1 16761141
    smartfon
    Level 4  
    Hello. What cross-section has the cable from the twisted pair from the Internet? And what is the maximum current that can flow through it? I will add that it is difficult to remove the insulation squeegee because it also tears the cord (the squeegee has a minimum clamping value of 0.2mm2).
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  • #2 16761168
    1repcaK
    Level 21  
    The diameter measured by callipers - 0.45 mm
  • #3 16761173
    Foxtrott
    Level 34  
    Core diameter = 0.511 mm
  • #4 16761183
    marqqv
    Level 32  
    Write whether it is pure curiosity or do you really want to use it and for which installation?
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  • #5 16761200
    smartfon
    Level 4  
    I would like to use it to connect the rear reversing and fog lights. Light bulbs are one 21W and two 4W each. At the same time, this 21W or the two at 4 w can be lit, so the total load is 8W. Voltage 12V, or current at 21W is 1.75A, and at 8W 0.67A. Can it be done or not? It is worth noting that these lights are not constantly lit, and these wires from the twisted pair are about 7cm long, the rest of the installation is made by a factory-made cable, which is a bit thicker.
  • #6 16761209
    beatom
    Level 38  
    The diameter of the duct is not everything. In such applications, insulation must be adapted to the atmospheric conditions.
  • #7 16761229
    marqqv
    Level 32  
    Why do you want to use the twisted pair wire instead of the same cross-section of the wires that already exist in the original wiring installation and should be soldered and this should do the trick.
  • #8 16761238
    sanfran
    Network and Internet specialist  
    In the current PoE standard, the power pair carries 350 mA of current (15.4W at 44V).
    Considering that the current flows only one way because I assume that the return is through the mass of the vehicle, 8 wires give you the ability to send 2.8A without overloading the cable.
  • #9 16761247
    technikabasenowa
    Level 33  
    Dear author, saving has its limits
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  • #10 16761248
    smartfon
    Level 4  
    I have a cable in the twisted pair and not a wire. It can not be used to directly solder wires because it would be uncomfortable. The plates are made of aluminum and you have to get a little tired to solder it.
  • #11 16761260
    marqqv
    Level 32  
    And the twisted pair which technique will you connect with the installation?
  • #12 16761262
    smartfon
    Level 4  
    2.8A for 8 zlotys, or 0.35A for a single vein? Is 2.8A per single vein?
  • #13 16761267
    technikabasenowa
    Level 33  
    Colleagues about what to debate here :D

    I think it's only when the new subject is going to be out of light :D
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  • #14 16761281
    karolark
    Level 42  
    smartfon wrote:
    2.8A for 8 zlotys, or 0.35A for a single vein? Is 2.8A per single vein?


    Is not it better to make clips?
    The author do not go this way, do not go :D
  • #15 16761282
    smartfon
    Level 4  
    Let the great gentleman write what wire would be the most suitable for such installation? 0.75mm2?
  • #16 16761297
    karolark
    Level 42  
    The answer is resist mechanical strength and good insulation
    twisted pairing is not suitable for this
    And the topic to the basket :D
  • #18 16761479
    radsat
    Moderator  
    3.1.17. Do not send very basic questions that can be found in the user manual or generally available sources. Do not present the attitude that I am due. Take care of the level of questions and discussions. Thank you.
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Topic summary

The discussion revolves around the cross-section and maximum current capacity of twisted-pair cables used for internet connections. Users provide varying measurements for the core diameter, ranging from 0.45 mm to 0.511 mm. The author seeks to utilize the twisted pair for connecting rear reversing and fog lights, with a total load of 8W at 12V, which translates to a maximum current of 0.67A. Concerns are raised about the suitability of twisted pair cables for this application, with suggestions to use thicker, factory-made cables instead. The PoE standard is referenced, indicating that a power pair can carry up to 2.8A without overloading. The author expresses difficulty in removing insulation without damaging the cable, and alternative wiring solutions are discussed, including the use of clips and other types of cables.
Summary generated by the language model.
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