I'd like to be able to run outside-premises networking cable (OSP Cat5e
4-pair) into a building. An empty 1-1/4 inch plastic conduit already runs
from the entry point to the wiring closet, however it is about 80 feet long.
Since this exceeds the 50-foot maximum for running the OSP cable indoors,
can anyone tell me:
1) Is there a way to fireproof the existing plastic conduit? Maybe some type
of flexible metal lining that could be pulled through? There are probably
three 90-degree bends, but the pipe is currently empty except for a pull
2) Or is there an underground-rated cat5e cable that is also rated for
indoor use? (The underground portion would also be in about 90 feet of
Thanks for any ideas.