conduit bend radius

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I thought that the standard radius for PVC 90s was 18"?

Usually the POCOs want either a 24" or 36" radius. I have been on a couple jobs where we were installing pipe for fibre and they spec'd 36" radius for all 45s and 90s.
 
My heart was with the EC right up until I saw it was PVC. It's too easy to get any radius you want out of it - he screwed up and should make it right to the specs.
 
Chamuit said:
I thought that the standard radius for PVC 90s was 18"?

Usually the POCOs want either a 24" or 36" radius. I have been on a couple jobs where we were installing pipe for fibre and they spec'd 36" radius for all 45s and 90s.
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The standard radius is different for each size of PVC.

Also there in no reason to purchase special radius elbows if you only need a couple. They are easily made with a hotbox.

Here are the Carlon specs on the PVC elbows.
http://www.carlon.com/Master Catalog/Conduit_Elbows_Schedule_40_and_80.pdf

PVC Raduis.JPG
 
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POCO's usually have a very thick & stiff HV underground feeder coming in to a transformer. That's why they want a wide radius 90. That stuff would be hard, if not impossible, to pull in a tighter one.
 
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