oh. I cant see that if we ever did this type of fiber we would direct bury. aside from cost is there any reason one wouldnt duct?
On Mon, Dec 24, 2018 at 10:24 AM Chuck McCown <ch...@wbmfg.com> wrote: > I like 100’ in each handhole. > > Sent from my iPhone > > On Dec 24, 2018, at 9:10 AM, Mark Radabaugh <m...@amplex.net> wrote: > > > > On Dec 24, 2018, at 11:00 AM, Steve Jones <thatoneguyst...@gmail.com> > wrote: > > 300k was a quote at one point. Weve got a little under half that in > microwave solutions spread over the years and we are coming up on > consistent 1/3 capacity with spikes over half, so we will outgrow that > investment again in a relatively short period. > > > 30k / mile is pretty typical. > > > "You can cut and splice duct when going over and under obstacles. If > doing direct burial you would be doing giant figure 8s or cutting and > splicing every time you hit a culvert or other shallow facility." > > > I assume these figure8 are slack and in handhole/vaults? so in rural > areas, at least 1 per mile since theres a road every mile? > > > > Nope. The figure-8 is how you have to handle the cable when installing > it if you don’t have duct. When direct burying the cable you have to > take the spool with you as you go since you can’t pull cable once it’s > buried. Every time you need to pass under an obstacle you either have to > cut the fiber and splice it back together or pull the entire remainder of > the cable off the real, store it temporarily, shove the end under the > obstacle and then reel up all the cable again. It’s a seriously labor > intensive process and you risk damaging the cable every time you do it. > > > Whats the rule of thumb on slack? is there a percentage? like say for > every 1000 feet you have x feet of slack? I aasume when an auger hits the > duct it will pull alot of that slack? > > > 10% > > Mark > > > On Sat, Dec 22, 2018, 12:04 PM Chuck McCown <ch...@wbmfg.com wrote: > >> Duct can be had for 35 cents / foot or less. I was getting it for 28 >> cents until the extrusion company went BK. >> >> You can cut and splice duct when going over and under obstacles. If >> doing direct burial you would be doing giant figure 8s or cutting and >> splicing every time you hit a culvert or other shallow facility. >> >> You can blow another fiber over the top of an existing fiber. >> >> Fewer fiber cuts and splices etc. In my opinion you don’t save that much >> money with direct burial. >> >> *From:* Chris Fabien >> *Sent:* Saturday, December 22, 2018 10:53 AM >> *To:* AnimalFarm Microwave Users Group >> *Subject:* Re: [AFMUG] 10 mile fiber >> >> I know we've had this discussion before.... we don't have gophers in >> Michigan. Only damage we have had on direct bury was due to gas company. >> Yeah it was a pain to fix, about 8 hours of downtime. But the cost savings >> is worth it to me for my network. We are doing FTTH so we do have more >> handholes for test points. Usually at least 6 per mile. Don't know where >> Steve is or how well funded so just sharing a lower cost option, I guess. >> >> On Sat, Dec 22, 2018, 12:15 PM Chuck McCown <ch...@wbmfg.com wrote: >> >>> The worst part of direct burial is gopher damage. And they will eat it >>> up on 100 places but they may not fail until there is some nearby >>> vibration. They seem to have the ability to eat up the cable but leave the >>> strands intact or just break one or two of them. >>> >>> Yes, you first have to find the damage and in long rural stretches that >>> can be difficult, more so with direct because you have to dig, cut, test, >>> dig cut test. With duct you just pull on it and see if it moves. OTDRs >>> are not precision measuring devices. Even if they are +-1% accurate, that >>> is 52 feet of uncertainty in a mile. So you shoot both ends and then >>> extrapolate the center of overlap or gap. >>> >>> Pray, dig, cut, test, splice, pray, dig, cuts, test, splice. Repeat >>> until you get there. After some time you will have it bracketed and many >>> times you just replace 1000’ instead of actually finding and fixing the >>> problem. >>> >>> All the while customers are very unhappy. I have had it take a week to >>> fix very long remote troubles like this. >>> >>> *From:* Colin Stanners >>> *Sent:* Saturday, December 22, 2018 9:56 AM >>> *To:* AnimalFarm Microwave Users Group >>> *Subject:* Re: [AFMUG] 10 mile fiber >>> >>> We also usually install a second duct on all major routes. >>> >>> Chuck, with your long career, I assume that you've had a few cases where >>> direct burial took a long time/difficulties to fix? >>> >>> Now working in the long-distance/underground industry, doing all the >>> planning and permitting, I've seen our guys pull up things - including a >>> boulder the size of a car - from the ground so that they could get that >>> conduit through. >>> >>> On Sat, Dec 22, 2018 at 10:48 AM Chuck McCown <ch...@wbmfg.com> wrote: >>> >>>> I never do direct burial any more. Not even on drops. Generally I >>>> install an extra duct, I like duralines future path products if I can >>>> justify the expense. I need to learn how to install microduct into regular >>>> duct. I am sure I can pull it but I would like to figure out how to blow >>>> it. >>>> >>>> *From:* Colin Stanners >>>> *Sent:* Saturday, December 22, 2018 9:42 AM >>>> *To:* AnimalFarm Microwave Users Group >>>> *Subject:* Re: [AFMUG] 10 mile fiber >>>> >>>> I try hard to steer clear of direct-burying cable, which is much easier >>>> to damage and extremely time-consuming to repair, unless it's a non-crucial >>>> line (e.g. standard residential customer, although those we currently put >>>> in conduit as well, to keep future risk and repair costs low). >>>> >>>> If this customer is paying 1/4 million to get a line installed, it's >>>> probably crucial. One day when that line gets hit, if it's in conduit it's >>>> likely possible to get it repaired within hours to a day. I've even heard >>>> of cases of the fiber surviving a conduit-line hit since it's "loose" >>>> inside the conduit and has slack at the ends. If a direct-buried line gets >>>> hit, especially next to a road etc, it may be needed to get locates, >>>> arrange a drill, electrical/gas line safety watch, etc, possibly even >>>> arrange more permitting for a new vault, which will often move time to >>>> repair to days or a week+. >>>> >>>> >>>> On Sat, Dec 22, 2018 at 9:28 AM Chris Fabien <ch...@lakenetmi.com> >>>> wrote: >>>> >>>>> Steve in our area we could do that "on the cheap" with 12 or 24 count >>>>> cable direct buried for around 100k. There are so many variables though. >>>>> You really need someone who has done work in that area and is familiar >>>>> with >>>>> permitting costs and requirements. I'd it's so rural that you can plow the >>>>> bulk of it and you are OK with direct bury you can save a ton of money vs >>>>> putting it all in duct. >>>>> >>>>> Personally I run at least 24 strands on any run that's going >>>>> "somewhere". Dead end runs can be 12F. >>>>> >>>>> On Sat, Dec 22, 2018, 1:46 AM Steve Jones <thatoneguyst...@gmail.com >>>>> wrote: >>>>> >>>>>> If a guy wanted to get fiber in the ground, non aerial between two >>>>>> buildings to replace an existing licensed 1.3 gb link. Crosses 3 >>>>>> creek/ditches, 10 rural intersections, 10 rural town blocks. What would >>>>>> be >>>>>> needed? >>>>>> I would guess that duct is the best thing to put it in, innerduct >>>>>> being better. >>>>>> I'd guess 96+ count isn't going to cost any more per strand to put in >>>>>> the duct than 2 (not the cost of the fiber itself) >>>>>> Lots of dark strands and duct space is probably lucrative to have >>>>>> just in case. >>>>>> Slack, handholes, vaults, etc, what would you put in there? 10 or so >>>>>> customers on the path so not a ftth type thing. >>>>>> -- >>>>>> AF mailing list >>>>>> AF@af.afmug.com >>>>>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>>>>> >>>>> -- >>>>> AF mailing list >>>>> AF@af.afmug.com >>>>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>>>> >>>> ------------------------------ >>>> -- >>>> AF mailing list >>>> AF@af.afmug.com >>>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>>> -- >>>> AF mailing list >>>> AF@af.afmug.com >>>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>>> >>> ------------------------------ >>> -- >>> AF mailing list >>> AF@af.afmug.com >>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>> -- >>> AF mailing list >>> AF@af.afmug.com >>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>> >> >> ------------------------------ >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
-- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
