I assume your PVC conduit had water infiltration which corroded away the metal armor inside the cable assembly.
Next time pull indoor/outdoor wet location rated cable with XPLE insulation, it might work better.
My Home Fibre Network Disintegrated
231–237 of 237 posts
Re: My Home Fibre Network Disintegrated
#232Earlier quoted context omitted.
There's gotta be more to it than that. I've got a pair of dress shoes I wear maybe thee times a year at most, and I've had them for somewhere between ten and fifteen years, perhaps longer. The soles (rubber because winter) are in perfect condition, and the leather isn't too bad either, though I've not really conditioned it enough and it's starting to show.
Both can be true. I have specifically heard that shoe glue needs to be repeatedly compressed to be maintained or it will disintegrate. Anecdotally as well, I had a pair of quality, lightly used, but old, hiking boots that had the sole completely separate after a day of heavy use. The runber sole completely detached from the leather shell inner shoe. The crazy thing was that BOTH boots failed within 20 minutes of each…
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Re: My Home Fibre Network Disintegrated
#233I've for decades have opted to use pvc conduit for underground installations. This way I can pull/replace wire. Reading this made me realize that putting fiber inside conduit in inaccessible areas would be a safe way to go.
Years ago some electronics sensors were replaced and started having problems. I came to realize it was a voltage drop with the new increased load. I was able to pull in new larger wire by using the old wire as the puller.
Re: My Home Fibre Network Disintegrated
#234Thanks HN folks for all the comments. To clarify a bit, the cables are pulled through PVC conduits under the flooring before being buried in cement. Currently the hypotheses for why the cable disintegrated so quickly is hydrolysis and paint solvents. Singapore is extremely humid but this doesn't explain why the exposed cabling on the other end is still healthy and not crumbly. The second possibility is that I keep th…
>Always measure exact length of buried fibre cabling as they aren’t meant to be stored in loops.
This is awful advice I would discard immediately. It's poor practice and against code.
When pulling cable, especially fiber, the ends of the cable should be able to reach the fathest corner of the room. Excess cable should be in a service loop, properly secured to a wall, and terminated on a patch panel. Both ends of he cable should follow this rule. That means you're typically pulling cable that's 15m longer or more, depending on the room and configuration.
NEVER buy and pull cable that is the exact size. The cable literally comes from the factory looped up, it's designed to be looped (watch bend radius).
Re: My Home Fibre Network Disintegrated
#235There's no link to the data sheet of the actual cable, but, yeah, looks like this should not have happened in such a short timeframe unless there's something really funny going on in that room, like ambient temperatures above 50 degC. Another thing that should not have happened is installing the cable in loops in this way: any 'building' or 'underground' type cable needs to be of the exact length required at the dema…
>Another thing that should not have happened is installing the cable in loops in this way: any 'building' or 'underground' type cable needs to be of the exact length required at the demarcation point
This is awful advice I would discard immediately. It's poor practice and against code.
When pulling cable, especially fiber, the ends of the cable should be able to reach the fathest corner of the room. Excess cable should be in a service loop, properly secured to a wall, and terminated on a patch panel. Both ends of the cable should follow this rule. That means you're typically pulling cable that's 15m longer or more, depending on the room and configuration.
NEVER buy and pull cable that is the exact size. The cable literally comes from the factory looped up, it's designed to be looped (watch bend radius).
>Loops are definitely allowed though, but that use case is mostly for aerial fiber to enable repair splices
Again, awful advice that's against code. Underground fiber must have service loops at both ends, and must be terminated to a patch panel.
Re: My Home Fibre Network Disintegrated
#236Re: My Home Fibre Network Disintegrated
#237Thanks HN folks for all the comments. To clarify a bit, the cables are pulled through PVC conduits under the flooring before being buried in cement. Currently the hypotheses for why the cable disintegrated so quickly is hydrolysis and paint solvents. Singapore is extremely humid but this doesn't explain why the exposed cabling on the other end is still healthy and not crumbly. The second possibility is that I keep th…
>Always measure exact length of buried fibre cabling as they aren’t meant to be stored in loops. This is awful advice I would discard immediately. It's poor practice and against code. When pulling cable, especially fiber, the ends of the cable should be able to reach the fathest corner of the room. Excess cable should be in a service loop, properly secured to a wall, and terminated on a patch panel. Both ends of he c…
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