Good morning,
We want to install a conduit with underground cable in the garden for 1-2 outdoor sockets. We plan to run the underground cable inside the conduit to protect it and allow for replacement.
The conduit would end just before the outdoor socket (pedestal socket) underground and exposed to the elements.
How can we properly seal the end to prevent water, sand, dirt, or animals from entering the conduit?
Should we foam the end of the conduit? If yes, with what?
Or should we use a waterproof heat-shrink sleeve?
Or is there another recommended method?
We only want to install one underground cable 3x2.5mm inside the conduit, so DN25 should be sufficient, right?
Can you recommend a conduit?
We want to install a conduit with underground cable in the garden for 1-2 outdoor sockets. We plan to run the underground cable inside the conduit to protect it and allow for replacement.
The conduit would end just before the outdoor socket (pedestal socket) underground and exposed to the elements.
How can we properly seal the end to prevent water, sand, dirt, or animals from entering the conduit?
Should we foam the end of the conduit? If yes, with what?
Or should we use a waterproof heat-shrink sleeve?
Or is there another recommended method?
We only want to install one underground cable 3x2.5mm inside the conduit, so DN25 should be sufficient, right?
Can you recommend a conduit?
I would press in a suitable sealing plug (e.g., Kaiser sealing plug ECON) and then cover it with heat shrink tubing. The sealing plug ensures airtightness, and the appropriately thick-walled heat shrink tubing also provides some mechanical protection for the end of the conduit.
What speaks against direct installation without conduit? After all, the underground cable is designed for that.
What speaks against direct installation without conduit? After all, the underground cable is designed for that.
F
FrankChief2 May 2024 09:56@Michilo Shouldn't the cable be installed in a conduit for additional protection and to allow for cable replacement in the future?
Can the Kaiser sealing plug make the conduit watertight?
How do you pass the cable through the plug?
Can the Kaiser sealing plug make the conduit watertight?
How do you pass the cable through the plug?
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nordanney2 May 2024 10:10FrankChief schrieb:
@Michilo, shouldn't the cable be installed in a conduit for extra protection and so it can be replaced in the future?Lots of theory. 1. The underground cable doesn't require additional protection. If you ever dig, the conduit won’t save it anyway.
2. Replacing the cable usually never happens.
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FrankChief2 May 2024 10:20@nordanney So you would recommend installing the underground cable without a conduit?
Is that mainly for protection against animals or digging tools?
Is that mainly for protection against animals or digging tools?
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nordanney2 May 2024 10:21FrankChief schrieb:
@nordanney So you would recommend laying the underground cable without a conduit?Yep. I've been doing it for 30 years without any issues (in my own houses).FrankChief schrieb:
Can the Kaiser sealing plug make the conduit waterproof?
How do you get the cable through the plug? I’m not sure if it’s waterproof. It was designed for airtightness. You can simply pierce the membrane with the cable.
FrankChief schrieb:
That’s more for protection against animals or shovels, right? A conduit or protective pipe (it’s no longer empty anyway) doesn’t really help against shovels. Just use the direct buried cable as is. If you’re worried about the future, use a 5x1.5 / 5x2.5 cable and terminate it in a Friedl junction box. You can then make all further connections there.
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