Conduits in a trench
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Posted by 42 on November 24, 2007, 6:13 pm
Please log in for more thread options 220vac + neutral + ground. The second will have probably 2 cat 5/6 for phone and possibly HA and a RG6 for cable TV. The trench is 24" wide. If I keep the two conduits on opposite sides of the trench while backfilling, will the 24" of soil be enough to prevent interference problems. I could dig 2 trenches yards apart, but of course I'd rather not. The total length is about 125'. They will be 3'-4' underground. TIA | ||||||||||||||||
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Posted by Larry on November 25, 2007, 10:04 am
Please log in for more thread options That should be fine. I've done the same thing with a 16" trench and didn't have any problems. Cat 5/6 uses balanced pairs which are pretty immune to interference. RG6 is, of course, shielded. If what you've hooked the 240vac up to produces too much interference, you can always use shielded cat 5/6 but I doubt you'll have to. -- Larry rapp at lmr dot com | ||||||||||||||||
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Posted by CWatters on November 25, 2007, 3:01 pm
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> 42 wrote:
> > I will be having two conduits in a trench. One will be have 4
conductors,
> > 220vac + neutral + ground. The second will have probably 2 cat 5/6 for
phone
> > and possibly HA and a RG6 for cable TV.
the
> > The trench is 24" wide. If I keep the two conduits on opposite sides of > > trench while backfilling, will the 24" of soil be enough to prevent
I'd
> > interference problems. I could dig 2 trenches yards apart, but of course > > rather not. The total length is about 125'. They will be 3'-4'
underground.
> > TIA
>
> That should be fine. I've done the same thing with a 16" trench and > didn't have any problems. Cat 5/6 uses balanced pairs which are pretty > immune to interference. RG6 is, of course, shielded. If what you've > hooked the 240vac up to produces too much interference, you can always > use shielded cat 5/6 but I doubt you'll have to. > -- > > Larry > rapp at lmr dot com Should be ok for interefrrence that's directly coupled but bear in mind the RG6 may form a big loop. Any high power machinery about? | ||||||||||||||||
| Similar Threads | Posted |
| Conduits in a trench | November 24, 2007, 6:13 pm |
> 220vac + neutral + ground. The second will have probably 2 cat 5/6 for phone
> and possibly HA and a RG6 for cable TV.
> The trench is 24" wide. If I keep the two conduits on opposite sides of the
> trench while backfilling, will the 24" of soil be enough to prevent
> interference problems. I could dig 2 trenches yards apart, but of course I'd
> rather not. The total length is about 125'. They will be 3'-4' underground.
> TIA