|
Not sure this is the place for it, but I am wondering if a 150amp power line running close to (in the same big pipe underground but not in directly next to each other...maybe 4-6 inches apart) phone lines will cause interference in the phone line. Also going to be running fiber optic cabling from a satallite internet dish on one house, underground about 400 feet (in the same trunk) and popping out on the otherside to network a house. Any issues with the fiber optic line and the power line? Is there a better line to use (I know catV is limited to 100meters and coax is just pretty 'bleh' isn't it?)? Is there a way to run the phone lines via fiber optic too? Thanks.
|
#
¿
Apr 12, 2009 21:20
|
|
|
|
| # ¿ Apr 28, 2024 04:20 |
|
|
grover posted:You probably will get a 60Hz hum if you tried this. Also, it's illegal to run communications cables in the same raceway as power cables. There are a few technicalities that may let you get away with it if you're careful, and shielded phone line should mitigate the hum issue. Voltage cable is already run and it's all gravy. There's no applicable codes this is in VT. I didn't build it but the guy who did know's his poo poo he's just not sure about the internet/phone stuff. Basically they dug a trench and ran a big pipe through it, and ran everything needed through the big pipes in their own littler pipe runs. Shielded cable isn't a bad idea.
|
|
#
¿
Apr 12, 2009 22:12
|
|
|
grover posted:Oh, you'd better believe there are codes for this stuff! And he's probably already violated several of them. Heh. I'm not a contractor but he's been doing this stuff longer than I've been alive, probably longer than you've been alive. So I'll take him at his word. Like I said though, fiberoptics and such are out of his realm of knowledge so I was just trying to gather some info. I like the idea of shielded phone lines, but is there any reason TO or NOT TO run them fiber optic as well (Can you?)
|
|
#
¿
Apr 12, 2009 22:56
|
|
|
ryanmfw posted:You mean run the phone lines using fiber optic cables? Do you know how fiber optic cables work? I'll assume you do, but I just want to make sure because the way I'm reading it, it doesn't really make sense to me. Also, no, there won't be interference with the fiber optic cables, I don't believe. Well I'm not too well versed but I know you can go catV to fiber to catV to run a longer internet data connection. So could you not do the same with a phone line if you wanted to?
|
|
#
¿
Apr 12, 2009 23:23
|
|
|
grover posted:That doesn't mean he's been doing it right all these years. I see an awful lot of people doing things the wrong way. A disturbing number of contractors in my area have never even seen a code book, letalone know what the building codes are. Duct banks require either strict conformance to designs in the code book (this is NOT one of those designs) or stamped engineering drawings attesting to their design. Which he probably doesn't have, either. It's not what I'd call a duct bank though, who knows. Do you know what fiber optics run per foot? Are there differing grades of cable?
|
|
#
¿
Apr 13, 2009 00:14
|
|
|
thanks for the advice, I might have somebody at work who can terminate the optic cable for me so that might help. Thanks for the advice on the wire-backed cabling, sounds like a good idea.
|
|
#
¿
Apr 14, 2009 17:12
|
|
|
|
| # ¿ Apr 28, 2024 04:20 |
|
|
Lucid Smog posted:If you know someone who can terminate the fiber, that's great! I have never actually gotten a price on terminations, but I have somewhat guessed that it's around $100 per termination. If you pull four strands, that's eight terminations. Yikes! I couldn't find a link to this one place I found that was pretty well priced and had every kind of fiber cable in bulk you could want. I'm sure I've seen them wire backed before, though some have pulling eyelets that you can use to some effect as well. For your distance and application you're going to want 62.5/125 multimode fiber with either ST or SC terminations (the termination type doesn't really matter, as long as you have either a fiber card in a computer/router/switch or a media converter with the same type of jack). Do you have a link to any resource that describes the different (ST/SC) terminations and the types of fiber? Why is 62.5/125 the best for my uses and what does it mean?
|
|
#
¿
Apr 15, 2009 16:27
|
|