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    Cut/Exposed Coaxial Cables Outside

    This is a discussion on Cut/Exposed Coaxial Cables Outside within the Sky & Sky+ TV forums, part of the Other Sky help and support category; Hi there, Just wondered, are coaxial cables for Sky TV dishes which have been cut/exposed outside supposed to be disconnected ...

    1. #1
      amalkin93's Avatar
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      Cut/Exposed Coaxial Cables Outside

      Hi there,

      Just wondered, are coaxial cables for Sky TV dishes which have been cut/exposed outside supposed to be disconnected from the dish or covered. I am asking because we have recently had one cut (its no longer in use) and its currently exposed to water, although we dont want to use it again, could this cause shorts/problems for the rest of the dish connections. Im asking because its the first time its rained since it was cut and all of our Sky boxes lost connection for 15 mins.


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      Re: Cut/Exposed Coaxial Cables Outside

      If you are able to access the LNB in a safe manner, I would defiantly recommend that you remove the remaining cut coaxial cable from it.

      It is possible for any water to travel up the cable, but I would have thought that it would normally be over a prolonged period.

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      Re: Cut/Exposed Coaxial Cables Outside

      Remove the cut cable from the dish, as suggested. Defiantly ( or definitely, even )
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      Re: Cut/Exposed Coaxial Cables Outside

      Quote Originally Posted by Kenedin View Post
      Remove the cut cable from the dish, as suggested. Defiantly ( or definitely, even )
      pmsl - sorry, dam spill checker!

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      Re: Cut/Exposed Coaxial Cables Outside

      Quote Originally Posted by amalkin93 View Post
      its the first time its rained since it was cut and all of our Sky boxes lost connection for 15 mins.
      In that case the damage may already be done. If water crept along the cable, the LNB may have moisture inside and could fail at any time. 'F' plugs should be filled with silicone grease to prevent moisture ingress. Unused LNB connections should be suitable protected to keep moisture out. (I use Blu-Tack quite successfully.)

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      Re: Cut/Exposed Coaxial Cables Outside

      Well the cable was cut by a BTO engineer the other day when resolving a broadband issue, as the old cable was in the way and it wasn't in any use. So i doubt from that time and the fact that the water would have had to flow vertically upward, that it isnt water damage. I was asking though as I was worried it could be shorting out the other dish connections from water contact, however it seems to be fine now, though I will remove them from the LNB later if you guys think its worth to do so?

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      Re: Cut/Exposed Coaxial Cables Outside

      Remove the redundant cable from the LNB, yes.
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      Re: Cut/Exposed Coaxial Cables Outside

      Quote Originally Posted by Scubbie View Post
      pmsl - sorry, dam spill checker!
      Dislexier as well, we should all Untie.


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      Re: Cut/Exposed Coaxial Cables Outside

      Quote Originally Posted by amalkin93 View Post
      So I doubt from that time and the fact that the water would have had to flow vertically upward, that it isn't water damage.
      Has it rained since?

      If the cable has an air-spaced dielectric, water can travel by capillary action at a speed of about one foot per second. I've watched it happening.

      If it's not air-spaced, water can still travel up the copper braid but it will be significantly slower. However, it will take hours, not days.

      This is not to say that water is the problem - just that you can't discount it so flippantly.
      (Do a search for "capillary action" if you didn't learn about it at school.)

     

     

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