always do a duct, always. A cable of any type is always nice, but a really long hole is always better. When I become rich man and can put stuff in dirt it will always be a path for something else. Expensive containers and cheap removable innards, like those washable condoms of yore.
On Wed, Jul 6, 2016 at 9:24 PM, Trey Scarborough <[email protected]> wrote: > what are you planning on using for the fiber? just laying it on the ground > as well. I would use liquid tight and pull through some solid 18awg that > would last the longest or some inch and a quarter duct and pull both > through. > > On 7/6/2016 1:38 PM, Jeremy wrote: > >> Not sure what kind of rodents you have there, but I definitely recommend >> conduit and buried. I have seen conduit not buried through the woods >> and it gets squished and broken (if it is PVC) by Moose, deer, etc. I >> have seen direct burial not in conduit eaten by Gophers or Voles or some >> crap. Those kind of jobs are usually the type that you don't want to do >> twice. >> >> On Wed, Jul 6, 2016 at 11:14 AM, Chuck McCown <[email protected] >> <mailto:[email protected]>> wrote: >> >> Use isolation transformers. And call it a speaker wire. You are >> sending a loud 60 cycle tone. >> >> *From:* Eric Kuhnke <mailto:[email protected]> >> *Sent:* Wednesday, July 06, 2016 11:10 AM >> *To:* [email protected] <mailto:[email protected]> >> *Subject:* Re: [AFMUG] Practical/low-cost 18AWG copper outdoor >> >> Yeah, can't do either of those... Burying it to Canadian electrical >> code compliant depth through 700 meters (2296 ft) of forest, fallen >> trees and rocks isn't going to happen. There is the slight >> possibility of electrical inspection based on where the power would >> be coming from. >> >> Using a 110/240VAC input active PFC 200W power supply that can >> output 54.5VDC and a DC-DC converter on the load end to bring things >> back to normal 46-48VDC will work. >> >> AC to DC meanwell RSP-200-48, $41 >> DC-DC meanwell SD-200C-48 $71 >> >> >> >> On Wed, Jul 6, 2016 at 9:44 AM, Bill Prince <[email protected] >> <mailto:[email protected]>> wrote: >> >> Or you could buck it to 480VAC or more... >> >> >> >> bp >> <part15sbs{at}gmail{dot}com> >> >> On 7/6/2016 9:34 AM, Chuck McCown wrote: >> >>> 240 AC over direct burial romex. All the power you might want. >>> >>> *From:* Eric Kuhnke <mailto:[email protected]> >>> *Sent:* Wednesday, July 06, 2016 10:29 AM >>> *To:* [email protected] <mailto:[email protected]> >>> *Subject:* Re: [AFMUG] Practical/low-cost 18AWG copper outdoor >>> >>> It's looking like $0.25/ft for the cable and the singlemode >>> fiber is less... Also the area is totally filled with trees, >>> trees cannot be cut for various reasons, it's the side of a >>> bluff on a hilltop. Branches and a few things in one >>> particular direction (about 10 degrees of azimuth) would be >>> cut to put in the PTP link. North of 49 latitude. >>> >>> With DC power over 14AWG it could be enough power for up to >>> 75W of radios on the far end. Off grid solar to do this would >>> be $4000 of panels batteries enclosure, charge controller. >>> >>> Very challenging site for solar, if you were to camp there you >>> might see 2-3 hours of direct sunlight per day max due to tree >>> shading. >>> >>> On Wed, Jul 6, 2016 at 8:57 AM, Bill Prince >>> <[email protected] <mailto:[email protected]>> wrote: >>> >>> For that amount of cable, at 50 cents a foot, I would >>> probably do a small solar setup. What is the latitude? >>> >>> >>> bp >>> <part15sbs{at}gmail{dot}com> >>> >>> >>> On 7/5/2016 4:25 PM, Eric Kuhnke wrote: >>> >>> Due to terrain I'm helping somebody design a network >>> link where a PTP radio will go on the side of a tree >>> on the opposite side of a mountain from where AC >>> power, a router and other network equipment is located. >>> >>> We're looking at 600 to 700 meters of singlemode fiber >>> and a small NEMA4X junction box with the radio on the >>> far side of the hill, containing a SC-SC patch cable >>> bulkhead and a meanwell DC-DC converter. >>> >>> It looks like based on the wattage of the radio and >>> voltage drop calculations for 18-2 cable that we can >>> get away with a 56VDC power supply at the power >>> source, dropping to not lower than 35VDC at the >>> receiving end, which will be fed into a DC-DC >>> converter to bring the output back up to 52.5VDC for >>> the radio. >>> >>> If you had to run 600-700m of 18AWG cable outdoors >>> through a forest, how would you do it? SJOOW type >>> cable may not hold up over a long enough time. Ideally >>> something that is more armored than SJOOW (it can be >>> much less flexible if needed). Cost is somewhat of a >>> factor. >>> >>> >>> >>> >>> >> >> >> >> > > -- If you only see yourself as part of the team but you don't see your team as part of yourself you have already failed as part of the team.
