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TV and satellite cables stuck in the conduit.

Riton72140 Posted messages 6 Status Member -  
Riton72140 Posted messages 6 Status Member -


Hello,

For the switch to fiber, I wanted to prepare the site.
I wanted to remove a satellite cable that is useless to run the fiber, but unfortunately my dear electricians from back then ran both TV cables in the same conduit! ????
The installation is about 15 years old.
I managed to pull on one, it moved 40 cm and got stuck ????.
I don’t know if it’s better to pull both at the same time at the risk of not being able to pull the one for TNT back through.
If you have any solutions, I’m all ears.
Last piece of info, I have a basement but I have underfloor heating, so making a hole is more complicated.

Thank you in advance.

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6 answers

  1.
    Redbart Posted messages 20956 Registration date   Status Member Last intervention   3 384
     
    Hello
    you need to blow talc into the sheath

    --
    Take the time to comment!
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    Mark as resolved if your issue has been solved. I address everyone informally.
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  2. jeannets Posted messages 28454 Registration date   Status Contributor Last intervention   Ambassador 6 618
     
    Hello,

    It is true that the situation is tricky... these cables must be 6 mm in diameter and the inside of the sheath is 13 mm... the difficulty lies in the bends... and it also depends on the distance to be covered and whether everything is on the same level or spread over two floors...? we need to know that...?

    -- First of all, you need to have two people to do this... one at each end of the sheath... one pulling and the other pushing... in unison, you need to be synchronized... In my opinion, both together + extend the cable.

    -- If your sheath is vertical, you can apply Yellow (a type of grease) https://www.telenco-distribution.com/pr18672/lubrifiant-yellow-77-differentes-quantites-disponibles
    This lubrication helps to pull the cables... But it also hampers grip, hands slip, so you need rough gloves or to use sandpaper...

    -- If the sheath is horizontal, it is better to blow some medicinal talc inside, it should spread through the sheath; whereas the Yellow will not flow...

    -- You need to make pulling and pushing movements on the whole... and to be able to do this, you need to add medium rigid cable, well attached to these two cables, with a length sufficient to reach the other end...

    You need to strip the core, make loops that bind them well together, twisted enough, then a splice on top with spiral electrician tape... the end of the tape is secured with a few turns of sewing thread "Chinois" wrapped in tight adjoining coils... so that the tape does not come undone in the sheath... This swelling must be made to prevent slipping in the direction of pulling...

    That's it... the explanations that don't give the "final touch" try to do your best, but the basic ideas are there...

    Let's say that your network cable that will take its place will be in the same situation...
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    1. glandu Posted messages 25515 Registration date   Status Contributor Last intervention   4 093
       
      Hello, if I can support "Riton" in his decision, Jeannets' advice is always relevant. Yes, you need to pull the two cables at the same time. My variant is to attach an "awl" at the other end, that's what it's called, so that it can be used later to insert the fiber wires.
      https://www.123elec.com/utilisation-tire-fil
      https://www.manomano.fr/recherche/aiguille+electricien+30m?referer_id=695337&gclid=Cj0KCQjwsZKJBhC0ARIsAJ96n3UhqtEgcqGbLLtd11M1rVYiLOC1CKJDP2bxkgCKdknNoo2sdJW4uJ8aAvImEALw_wcB
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  3. Riton72140 Posted messages 6 Status Member
     
    It's on two levels, but with very little height, it reaches the ceiling of the garage.
    If we add the thickness of the concrete slab and the height of the outlets, I would say 40 to 50 centimeters. There is only one angle for crossing the living room. And I would say a total distance of 10 meters max. There is a French window; I think the duct should go underneath but not bypass it.
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  4. Riton72140 Posted messages 6 Status Member
     
    Thank you for your quick responses!
    I picked up a wire puller, but it seems rigid.
    I will test it to pull out the satellite cable, but I think it will get stuck if I leave the TV cable.
    Can I use lubricant spray for lubrication?
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    1. glandu Posted messages 25515 Registration date   Status Contributor Last intervention   4 093
       
      Hello
      a wire shot is always a bit rigid, it has to be sized appropriately for the configuration of the bends and the diameter of the duct.
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      1. Riton72140 Posted messages 6 Status Member > glandu Posted messages 25515 Registration date   Status Contributor Last intervention  
         
        We don't know the curves!
        The big problem is having put TV cables in a small conduit.
        My darling didn't trust me to do the electricity for the house.
        I'm an electrician, but industrial, and I don't have much knowledge in building work.
        I already struggled to redo all the connections of the panel and the outlets behind the professionals we hired back then.
        The wiring of the phone sockets was a total mess.
        With ADSL, one was useful.
        They sold obsolete stuff.
        And I wasn't keeping an eye on them, we trusted them a bit too much.
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      2. glandu Posted messages 25515 Registration date   Status Contributor Last intervention   4 093 > Riton72140 Posted messages 6 Status Member
         
        Hello, it's funny I did the same thing with the phone and the TV, I was using my standard roll of 16 or even 20
        currently the NF C15-100 standard requires a diameter 3 times larger than the diameter of all the wires introduced
        anyway, the dice are thrown, we need to pull out the wires, after that it’s all good for the 4 mm pulling wire, it's optimal
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      3. Riton72140 Posted messages 6 Status Member > glandu Posted messages 25515 Registration date   Status Contributor Last intervention  
         
        Thanks Glandu!
        I’ll check it out tonight, we'll need to find a buddy to lend a hand.
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    2. Redbart Posted messages 20956 Registration date   Status Member Last intervention   3 384
       
      specially don't use petroleum-based products, over time they attack the plastic on the surface and later it dries out and everything gets stuck (sleeve + cable)

      the best experience I have is with talcum powder
      you should already apply some when you sheath the cables, coaxial or fiber
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  7. Riton72140 Posted messages 6 Status Member
     
    I just did a test on my own, I routed the sheath differently over the electrical panel. And I managed to pull 40 centimeters on the satellite cable without moving the TV cable.
    Now we have to wait for the fiber technician to come.
    I will use the sat cable as a pull wire. And I will get some talcum powder.
    I’ll keep you updated on Friday.
    Thanks again.
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