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Laying Electric Cable Next to Fiber Optic in a 5m Underground Tray: Distance Concerns?

misterio76 19023 5
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  • #1 4556746
    misterio76
    Level 10  
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    Hello, is it possible to lay an electric cable in an underground cable tray on a 5m section, next to the fiber optic cable (distance between the cables about 10 cm). Won`t this cause disruption?
    If so, what should be the minimum distance between wires?
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  • #2 4556776
    irekr
    VIP Meritorious for electroda.pl
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    There is no possibility of the electric cable affecting the fiber optic cable. They can lie almost next to each other. however, for service reasons, it is advisable to maintain a certain distance as mechanical protection when working on them. however, the fiber optic cable should be placed in a conduit allowing it to move freely along its entire length.
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  • #3 4556931
    ZGG
    Level 27  
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    Have you seen how optical fibers are run along high voltage power lines, even 110kV?
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  • #4 4558800
    irekr
    VIP Meritorious for electroda.pl
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    Most often they are inside lightning conductors...
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  • #5 4559505
    kasprzyk
    Electrician specialist
    Posts: 5595
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    What is an underground channel?

    colleagues wrote - no contraindications.
    as for laying at a distance from other cables - in practice - e.g. in telecommunications networks (in telecommunications manholes), optical fiber is laid together with other copper cables - it is not possible to maintain the distance (unless it is placed in a repeater)
    best regards
  • #6 4560043
    rymario
    Level 11  
    Posts: 6
    misterio76 wrote:
    Hello, is it possible to lay an electric cable in an underground cable tray on a 5m section, next to the fiber optic cable (distance between the cables about 10 cm). Won`t this cause disruption?
    If so, what should be the minimum distance between the wires?

    Mysterio
    Place it as you like. There should be no interference because an electric cable causes electromagnetic interference, and an optical fiber does not cause any interference. To put it simply, an optical fiber is a glass tube in which light travels, reflecting off the internal walls of the tube. You just need to pay attention to something else. You cannot bend the fiber too much, otherwise there may be signal losses.

    Regards
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