Electrician Help Required - Underground Cable Termination

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JimmyLizar

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#35953 17-Jun-2009 13:49

We ran cable for a automated gate but decided not to install the gate. Dont want the small coil of cables sticking out of the ground, so plan to bury it just beneath the surface (under the grass)

What should I do to protect the cables especially the ends (worried about water ingress).

Will be:

- Telephone Cable
- Power Cable

Thanks.

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cyril7

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#225834 17-Jun-2009 15:01

Hi, I assume both cables are not terminated at each end, ie there is no way that the cable can become live without major deliberate intervention.

Edit: I assume both cables are in their own conduit, I would put a post in and contine the conduit to the post and instal pull boxs on the post to close off each cable. You will not fit much cable in the box, so just push the cable back down the conduit so only one loop ends up in the box. If you dont want to install a post then there must be a fence post already nearby to install it on. Also you should use orange conduit and boxs for power and grey for the phone/control.

You should also label the post to indicate buried cables, suitable labels are at your wholesaler. I would also label the power cable at the source end to indicate what it is and that its not connected at the far end. Same goes for telephone.

Cheers
Cyril

richms

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#226357 18-Jun-2009 17:50

non acid cure silicone over the end of the cable will stop water ingress to it - We put the cable into a small bag and filled it with silicone and cabletied it closed and the cables were sweet as 4 years later.

Richard rich.ms

cyril7

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#226404 18-Jun-2009 19:07

Yep silicon or I normally use PIB tape (self amalgamating tape).

Cyril

kevthesparky

79 posts

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#226828 19-Jun-2009 19:36

self amalgamating tape got my vote bloody good stuff i say.

Make sure the circuit is not live and I would check that the earth and neutrals are not tied into a circuit any where as if water does ingress it could trip your RCD if one is installed. as for the phone I would just use gelcrimps they are the best way of protecting the cable you should be able to get them from dick smiths I think.