Title: Direct Burial Optical Fiber for 250m Distance: Single-Mode Fiber Recommendations & Tips

Gentlemen, thanks for so many answers, although I can see that I caused a light storm and I had no such intentions ... And the topic, as usual - the river topic. What will the author do? After reading your posts, I am inclined to put a typical to-ground optical fiber and stretch arota fi40 on it on the connectors, giving the connectors that are included. I am sure that there will be no backfill, and no one will bring special sand to provide a layer for the cables. These are the realities, so it won't hurt you. As usual, the topic has deviated a bit to a different track and, as I wrote at the beginning, it should be done once and well and I do not need to drag anything there, replace, make wells, etc. If someone damages the cables later, it is not my concern anymore.
I am asking you to recommend some specific earth-fiber optic cables that I can use with a clear conscience. I think 6-8 fibers will be optimal.
Perhaps, for the sake of humor, I will add that it is not a city of 15,000 inhabitants or a village of 1,000 inhabitants. It's just a single-family house of 6 people and a 100 ? EU cow shed

Mainly 6 mod, Z-XOTKtsdD SM6J9 / 125.

adjan_ek wrote:

I am sure that there will be no backfill, and no one will bring special sand to provide a layer for the cables.

adjan_ek wrote:

it has to be done once and for all

Well, in my opinion it will not be.

Włodzimierz Wojtiuk wrote:

adjan_ek wrote:

I am sure that there will be no backfill, and no one will bring special sand to provide a layer for the cables.

adjan_ek wrote:

it has to be done once and for all

Well, in my opinion it will not be.

It will be ok, read that understanding ... what the author wrote in the last post.

adjan_ek wrote:

After reading your posts, I am inclined to put a typical to-ground optical fiber and stretch arota fi40 on it on the connectors, giving the connectors that are included.

Just arot, no ballast is needed, don't overdo it, buddy. Arot and the to-ground optical fiber placed in it will basically be a perpetual installation for the conditions that the author has there.

Sosarek, don't sink into it, it's enough ... you got recommendations from your friend Suvorov,

sosarek wrote:

Mainly 6 mods, Z-XOTKtsdD SM6J9 / 125.

As already it is 6-fiber, single-mode. Don't reinvent optical fiber.
Another thing, you proposed a cable for blowing into the pipe ... and it is supposed to be to the ground.
Here is the following: Direct burial cable DAC 4J G.652D (Z-XOTKtcdD) - 4 fibers, price PLN 1.17 per meter. Crush resistance 4kN.
The same is available for 8 and 12 fibers.
https://www.kabeltechnika.pl/grupa/640/dozenne.html

adversus wrote:

Włodzimierz Wojtiuk wrote:
adjan_ek wrote:
I am sure that there will be no backfill, and no one will bring special sand to provide a layer for the cables.
adjan_ek wrote:
it has to be done once and for all

Well, in my opinion it will not be.


It will be ok, read that understanding ... what the author wrote in the last post.

The author also mentioned the power cable directly in the trench, and that's all I mean.

Włodzimierz Wojtiuk wrote:

adversus wrote:

Włodzimierz Wojtiuk wrote:
adjan_ek wrote:
I am sure that there will be no backfill, and no one will bring special sand to provide a layer for the cables.
adjan_ek wrote:
it has to be done once and for all

Well, in my opinion it will not be.


It will be ok, read that understanding ... what the author wrote in the last post.

The author also mentioned the power cable directly in the trench, and that's all I mean.

Mate, be precise. You referred to the author's last post, there is no question of a cable in the trench. It is enough that Sosarek every now and then tries to show off the theoretical knowledge he has or rather does not have, describing that cables buried in the ground get damaged (according to him, it is a plague).

And in fact, who of us, while laying the power cable in a trench at 70 cm (on average, this is the accepted limit of ground freezing, is laying cables on a ballast. At this depth there is rather ordinary soil and there are no stones there, unless someone lives on a gravel pit, then it is very advisable At many assembly sites, where I was a consultant, the team was either digging an excavator or a machine of ditches, or by hand, at 70 cm, where various installations were laid, it was very rare to make a ballast because the ground already provided it.

And I am sure that the author is well aware of the conditions for burying a cable or an arota.

adversus wrote:

sosarek wrote:

No, because they use OPTO and install manholes, just like Orange, Netia ...

Manholes and pipes are laid in the city so as not to dig pavements and streets every now and then when the network is modernized.

Cable chambers are not the only application of this type. In such a well, fiber optic cable connections are also placed using appropriate fiber optic couplings when it is necessary to branch the cable. I saw in my housing estate a company for Orange made such a muff after welding a fiber-optic cable and placed it in a cable chamber. In fact, Sosarek is too theorizing.

And as for the author of the topic, if you use arota and a suitable earth cable, the cable will last forever.

Short and to the point:
1. Cable designed to be laid in the ground can be laid directly in the ground. You need to know how to do it. How? You will find, for example, in the relevant SEP standard.
2. Cable ducts are usually built in urbanized areas. Primary and secondary. Thanks to this, more cables can be added in the future without excavation work.
3. Cables laid in the ground, in places such as intersections with others or in places where an increased risk of damage is expected, are laid in protective pipes.

I recommend the SEP standard. You can learn a lot and do well right away, without learning from your mistakes.

@adjan_ek how did laying the light go?

Hello. Sorry for the lack of response - lack of time and material fatigue ... There was no light stacking yet and I suppose it won't be unfortunately.
Plus, at least I'm smarter about some knowledge and thank you again for the advice. However, if something moved in the subject, I will let you know.

adjan_ek wrote:

There was no light stacking yet and I suppose it won't be unfortunately.

And what happened that it will not be?
You seemed determined:

adjan_ek wrote:

it has to be done once and for all

what turned out to be an obstacle?

Probably the crisis caused by CoronaVirus, and thus many investments are postponed, or even fall out of the implementation plan ... but who knows ...