I would hazard that loose tube is pretty immune from freezing water crushing damage in a duct.
From: [email protected] Sent: Monday, November 06, 2017 5:21 PM To: [email protected] Subject: Re: [AFMUG] fiber conduit depth In this case it was a round loose tube drop cable. Sent from my iPhone On Nov 6, 2017, at 5:37 PM, Chuck McCown <[email protected]> wrote: I doubt it in plastic conduit. What kind of drop? From: Adam Moffett Sent: Monday, November 06, 2017 3:17 PM To: [email protected] Subject: [AFMUG] fiber conduit depth So we buried a 3/4 PVC conduit about 8" deep for a drop cable. Due to obstacles, that's as deep as it was realistically going to go. Now somebody is wondering whether ice in the conduit is going to be a problem. We're assuming in the long run water will always get in, but the question is whether it'll hurt the fiber when it freezes. The person doing the wondering speculates that when the ice expands it will crush the cable and damage the fibers. Is this actually possible?
