Fibre Lead-in trench

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arnies

525 posts

Ultimate Geek

#250767 24-May-2019 16:23

I'm planning on putting an underground lead-in pipe in for my fibre install and have ordered the green pipe from Chorus. This weekend I'm planning on digging the trench from the street to where I want the ETP to go.

My question is how near to the microduct on the street does the trench neeed to be? Unfortunately the microduct is right in front of a garden with trees/roots in the way. I'm not sure i'll be able to dig a 400mm trench that ends up lining up with the microduct, but more likely ending up 1m-ish to the side of it.

Will this be an issue?

DarthKermit

5346 posts

Uber Geek

Trusted

#2244801 24-May-2019 16:38

I don't think it should matter, but you might need to buy a sweep bend to allow for the 90 degree change of direction.

Gordy7

1906 posts

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Lifetime subscriber

#2244957 24-May-2019 20:02

It the garden is not too wide you could drive a pipe under the tree roots. Depends how soft the soil is under the garden.

I had two places where I could not take the trench to the micro duct.

One was 600mm under an automatic gate foundation. In this case I dug a 450mm deep hole (150x150mm) beside the micro duct and on the other side of the foundation I ran my 450mm deep trench up to it. Then I hammered a 32mm plastic waste pipe (with a wooden point) under the foundation.

The other was under a 1.2m wide path. Similar situation. Trench 450mm deep either side of the path. Again I hammered a 32mm waste pipe under the path.

The 32mm waste pipe had plenty of clearance for the socket end of the Chorus green duct.

Gordy

My first ever AM radio network connection was with a 1MHz AM crystal(OA91) radio receiver.