Fibre install fail

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cyril7

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#245269 26-Jan-2019 19:36

Pretty self explanatory, noticed while waiting for a cab after the Taupo concert.

Cyril

andrewNZ

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#2168118 26-Jan-2019 19:44

There has been damage to this install. It appears that it was much better.
You can see a bent saddle which suggests this.

On first glance the image looks terrible, but there must be more to it. I'd love to see a long shot of it.

cyril7

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#2168120 26-Jan-2019 20:00

Hi yes clearly the vertical run had dropped, but not sure how the saddle had been moved it's 3.5m off the pavement and protected from tall trucks, and being side swiped by the metal trunking, but clearly the microduct is ether missing or not properly joined inside the conduit.

Cyril

Aredwood

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#2168178 26-Jan-2019 21:23

Maybe another horizontal section near ground level. Someone stood on it, and that pulled down the vertical.

MadEngineer

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#2168187 26-Jan-2019 22:12

If only you could get conduit coupling *facepalm*

You're not on Atlantis anymore, Duncan Idaho.

sparkz25

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#2168189 26-Jan-2019 22:17

That looks like the installer was being lazy and doesn't know how to do his job, when you look at it it looks like he has used 20mm flexi conduit and pushed it in to some 25mm conduit, no attempt of glueing them together.

He should have also used full saddles and more than one saddle to hold that to the wall, thats just asking for some one to pull it off the wall, at least 500-600mm minimum spacing to prevent that from happening as well as the correct conduit and fittings.

Just pure lazyness and incompetence right there

chevrolux

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#2168376 27-Jan-2019 14:02

Looks like white telecom pipe (pressure pipe, with 20mm ID). So normal electrical conduit couplings won't fit.

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cyril7

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#2168445 27-Jan-2019 15:09

Just to clarify it had the two saddles you see, the vertical had another about waist height, the horizontal ran for 15-20m down the length of the building, and had probably 5 saddle's max and was weaving all over the place. Overall not enough fixings to hold it together and end result is as would be expected, so in one way the installer was successful..........NOT

Cyril

Gordy7

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#2168492 27-Jan-2019 16:14

No saddle further down the wall for the fibre pipe for at least 1.2m (6x blocks)...

Broken saddle on the larger down pipe....

Has someone climbed off/on the veranda and been swinging on the pipes?

Gordy

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Tracer

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#2168609 27-Jan-2019 19:57

chevrolux:

Looks like white telecom pipe (pressure pipe, with 20mm ID). So normal electrical conduit couplings won't fit.

Do they not make swept bends for that stuff? Flexi conduit is NOT the way to do it. I assume PVC glue works on it too.

sparkz25

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#2168629 27-Jan-2019 20:54

Tracer:

chevrolux:

Looks like white telecom pipe (pressure pipe, with 20mm ID). So normal electrical conduit couplings won't fit.

Do they not make swept bends for that stuff? Flexi conduit is NOT the way to do it. I assume PVC glue works on it too.

yes they do make sweeping bends for 20mm and 25mm conduit the bend is around 200-300mm in length

https://www.mitre10.co.nz/shop/marley-conduit-90-degree-sweep-bend-25mm-grey/p/103201

Tracer

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#2168638 27-Jan-2019 21:49

@sparkz25 that’s for regular conduit. The chorus stuff is 20 mm ID, and non-standard wall thickness so it doesn’t quite fit normal 25 mm conduit bits. I think it’s actually plumbing pipe.

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cyril7

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#2168694 28-Jan-2019 06:29

Hi further to Tracer's comments, the 20mm Telco stuff is not the same dimensioning as either Electrical (Oranage) or Data (Grey) and if you shove a 20mm Data flexi up a 20mm Telco pipe there is typically insufficient interference for PVC cement to work and hold.

Other questions, as you can see the twin core blown fibre is hanging stressed from all this mess, the microduct it was in is seen to the right, so whats in the horizontal conduit to the left, one assumes the fibre pair is in more micro duct in that conduit, so why did it come apart, those compression joints used on blown fibre have a quite strong grip, or is the fibre pair just bare in the duct, maybe @Chorusnz might be able to comment.

Cyril