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Yes, there are many ways to lay optical cables, which can be pipelines, direct burial, overhead, etc., according to the actual environment, choose the best laying method.
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The structure of the optical cable has taken into account the outdoor environmental factors, and the outer surface of the GYTA optical cable is sheathed with PE, and the pipe optical cable is not only sheathed with PE on the outer surface, but also with aluminum sheath inside. So there will be no impact.
The application of optical cable is relatively mature. What you need to consider here is that when the fiber optic cable is connected, the splice box should be waterproof.
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There is no impact, basically most of the fiber optic cable trenches are in sewage wells.
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No, light attenuation occurs when the bending is too high.
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Just find the construction team to melt it directly, and add a welding package.
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After the emergency repair personnel came, they had a better attitude of admitting their mistakes.
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That's because many optical cables are routed from underground passages, and the staff generally pull communication optical cables. For example, ** bus, cable TV bus, national defense optical cable, etc. are all drawn from one place to another through the underpass. There is a certain space in the sewers, the sewer space in China is still relatively narrow, we can see a lot of shots after watching a lot of movies, and there are often police or fugitives who arrest or flee from the underground passages, from one place to another.
The staff is to pull a very long wire from the entrance of the underground passage to another exit, because the wire is very long, generally not cut, the cut fiber optic cable re-fusion may affect the signal transmission, so a very long roll of wire is not cut, just pull directly from one place to another.
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A lot of those are not wires. Generally, it is optical cable, such as network signal optical cable and special channel optical cable.
Let's put it this way. You've generally heard of construction that water pipes are being dug up, cars are overloaded and wires are torn up, and signal transmissions are barely audible and interrupted for these reasons.
As far as I know, the banking system has a set of backup fiber optic cables for signal transmission. When all signals are cut off, they can still exchange data from that proprietary channel.
The advantage of this is that he relies on a well-established urban pipeline without having to carry out new excavation construction. This also avoids the disruption of these important lines when laying other lines in the future.
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In order to save and for convenience, there will be cables and optical cables passing through the general sewer. Especially in downtown areas such as urban areas, where high-voltage power poles are not allowed.
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It's not a sewer, it's a tube well built by telecom operators. Worker construction is often the increase in the voice or data service in the community or office building, and the computer room can not meet its needs, and the nearby convergence bureau divides part of the resources and increases the line transformation.
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That's not a sewer, that's a cable duct, part of the municipal works, the part of the building that connects to the main municipal pipeline. For example, if the newly built building is to be electrified, the cables must be connected to the main municipal line through the pipes laid.
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That is the cable well, with the development of the city, the communication cable is no longer buried underground, because the direct burial is more troublesome for the later maintenance and troubleshooting, and the cable culvert method is adopted. In this way, even if the cable needs to be broken down or replaced, it is very convenient, and there is no need to re-cut the road, but in remote areas, the direct burial method is still used, which is much cheaper.
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Now the wires are generally pulled through the pipe underground, so that it looks better, only the rural area to pull a larger wire, or walk the pole, or pull directly from the ground, so that it looks like a spider web, which is not beautiful and has potential safety hazards.
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Nowadays, many lines are grounded, and the wiring is done by digging underground pipelines, so that air obstructions can be well avoided.
Such as telecommunications, mobile, China Unicom, electricity, natural gas, ,......Which kind of cloth is under the specific manhole cover, and the top of the manhole cover.
All are marked with company Chinese.
For example, the "power company" on the manhole cover indicates that the wires are laid below, and the "telecommunications" means that the telecom company is laid out optical fiber or communication lines......
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Because there can not be too many electric poles in the city to do overhead lines for electricity, and overhead lines such as **, there are few sewer circuits in the countryside, because there are no sewers in the countryside, so they can only do overhead lines, that is, a lot of electric poles.
And if you get a lot of telephone poles in the city, it will be ugly, so they all go underground, especially broadband lines for communication, cable TV lines, and so on.
Give it to me, I'll divide it equally, thank you.
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Because the lines are all on the edge of the sewer. This connection is regulated by the Ministry of National Unified Construction.
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In the air are wires. In the sewer well (actually the cable well) is the cable, and most of the ** and the computer at home are connected to the Internet through that cable.
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You don't understand this, whether it is road administration, municipal administration, including outdoor places such as squares, you have to use electricity. It is not often that you can see large electric boxes on the side of the road. They just connected the newly installed facilities to the electrical box, but the wire headquarters may walk from the road, so there are threading wells under the road and the community.
Hehe, of course there may be other reasons. I used to work as a road administrator, and I often climbed into manholes to thread strings.
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That's a communication pipeline, and it's often a line repair or renovation that often pulls wires.
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I've seen wires in sewers, and that's because wires heat up when they're usually done, which will affect their safety and durability!
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First: if it is drainage, it is dredging pipes;
Second: If the inspection well is not drained, it is a telecommunications well, which is pay-off!
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You must not be looking at sewers, that is, sewage pipes. It is the line pipeline laid below during the construction of the road surface, and it is specially laid for various lines, such as wires, ** lines, etc.
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That's not a sewer. It's the cable that goes underground. Cables for electricity and telecommunications are no longer pole-gnotted. Trends in urban space development.
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= =1.If it is a sewer, it is not a wire but an iron rope, and the sewer is blocked and must be dredged.
2.If it's a wire, then it's not a sewer, it's a fiber optic cable, cable, or something like that.
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There is often construction in the city, so a lot of pipelines need to be added
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This is an underground pipeline, in China it is a sewer, a narrow sewer, this is a multi-purpose underground pipe network facility, which is used both as an underground drainage system and as a wiring for the underground line system! ~
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That's not a sewer, that's mobile, or Unicom workers wear fiber optic cables, wiring.
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Nonsense, what do you go without going to the dark tube? They all go down underground pipes like sewers, and there is no problem with the blisters (not the joints).
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Generally, it is a hidden tube, and a few are open tubes without a dark tube.
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Optical fibers don't have to see light, as long as the lines are good when buried in the ground, they can still be used. (Personal understanding).
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Sewers are the most clogged and not easy to unblock, and there are many things that cannot be thrown down the drain. If we don't pay attention, it will cause water pipes to clog, so we must pay attention to it in our daily life.
First, something with grease can't be thrown down the drain. For example, some people are used to pouring meals containing grease directly into the toilet, but in fact, this is very harmful. Grease easily absorbs dirt, and once it slides down the drain, when it comes into contact with dirt, it will stick together more and more, and the coagulated fat will also stick to some debris, causing serious water pipe blockages.
Second, toilet paper and wipes should not be thrown down the drain. Many people will throw paper towels into the toilet after convenience, which is the easiest to cause the water pipe to be blocked, and it is particularly difficult to dredge, and there is no other way except to go down. Although it is said that it will be dredged in a short time, the dirt is still in other places, and it still causes more serious congestion.
And we should also be careful when washing our hair and bathing that we don't let our hair get down the drain. Otherwise, they will become entangled, trapping all the impurities, and in the end they won't even be able to pass through the water.
Third, cotton swabs and cotton balls, which have a high cotton content, should not be thrown down the drain. Because cotton-containing things are not easy to decompose, they will swell when exposed to water, which will absorb dirt and fat, causing water pipes to clog. In addition, ink and paint should not be poured into the sewer, which can cause serious water pollution.
Solid waste such as fruit cores and melon seed skins should not be thrown down the drain, these things are bound to accumulate in the corners of the water pipes, and they are not easy to decompose, and they are the most likely to clog.
The function of the water pipe is to deal with simple sewage, we must usually develop consciousness, do not throw some things that are easy to clog the toilet into the sewer, so as to prolong the life of the water pipe.
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Some things that cannot be dissolved by water instantly, and cannot be thrown down the sewer, such as hair, paper towels, rag heads, plastic bags, small stones, cement boards, etc., otherwise it will clog the sewer, which is a troublesome thing.
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The hair that falls out when combing your hair can't be flushed down the drain, and there are sanitary napkins, which are easy to clog the drain, and it is a hassle to unclog the drain.
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There are many things that can clog the drain, such as hair, stones, and kitchen leftovers, etc., all of which cannot be dissolved by water!
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When I was in school, the first thing I did when I returned to the dormitory after class was to compete for the toilet, but the cost of my roommate's toilet seemed to be a bit high, and I actually used a mobile phone. Didn't anyone tell you that your phone is prone to clogging down drains?
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There are a lot of things that can't be thrown down the drain, and the most important reason is that they will accumulate in the pipes when they enter the sewer, and in the long run, they will clog the pipes, such as: eggshells, sand, hair, flour, rice residues, etc.
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There are really many things that can't be flushed in the sewer, for example, our hair is one of them, and the hair is easy to clog the sewer, so we must pay more attention to it, otherwise it will be particularly troublesome.
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Sanitary napkins used by women, as well as various plastic products. Pipes and rods can't be rushed. Hair is also not allowed, although the hair is very thin, but the hair is not easily washed away by water, and over time, the deposited hair will become entangled with each other, blocking the pipes.
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Rags and rice, after all, not everything can go down, and I personally recommend not throwing solid, impermeable things into the sewer.
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In 2013, it was reported that more than 30 people live in 13 sewers near Lido in Beijing, most of them are over 50 years old, and some people have lived for 20 years, these people are because they can't afford to rent a house to go back to live in the sewers, thermal wells, they don't accept the aid station, because the aid station can only help them alone, they still have a whole family to support, there is a gentleman, he has 3 children in school, the burden is very heavy every month, and there is an old lady, The life pressure of the eldest son's family is also very heavy, the second son is still mentally ill and needs to be raised, and the younger daughter is in graduate school and has not yet graduated, so the rent is saved to pay these children child support, these people are called homeless by sanitation workers and security guards, they say that the most feared is the chengguan, because every time the chengguan sees them, they will drive them away.
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Foreign sewers are wide to live in, but Chinese sewers are narrow, no matter whether they can live or not, just the sound and smell of the water that flows every day can not stand it, and the long-term absence of sunlight in it is not good for people's health, so no matter where the sewers are not suitable for people, health is the first priority.
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The small city is out of play... The sewer pipes in the town are small and mixed... EVERYTHING ... Megacities may be better... I am afraid that only the United States can find it in the movie.
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Can't live in people, there are many unknown dangers in sewers, some sewers are not opened for a long time, there will be some kind of dangerous gas, sewage is still often circulating, generally sewers can not be opened immediately, to open for a while, but also to enter with full armament, have you seen "Forensic Pioneer"? I don't know if the first or second part has a case that talks about the sewer, saying that if you accidentally bump into something inside, you can easily get some infectious diseases.
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You can stay, today I saw the "9 weirdest hotels in history", among which is the sewage pipe hotel, which is the "das park hotel" in Austria. This hostel, located in Ottensheim, Austria, also requires early check-in from a ticket vending machine, but guests can choose different sizes of "pipes" depending on their needs**. Considering that this is a concrete sewage pipe, it is indeed fair.
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Sewers can live in people, but if there is a foreign drainage system, there are no such big sewers in the mainland, and the environment inside is different from that in the Teenage Mutant Ninja Turtles, so it is impossible to live like those foreign ones in the movie. And the sewers in the mainland area are still mixed discharge, and there is poop in it.
Don't look at it, I feel sick when I think about it now. A friend threw up on the spot when he saw it.
Life in the water.
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In fact, Hugo's words have nothing to do with the construction of cities, he means that the sewers of the city are the habitat of the exiles and the vulnerable, and the sewers shelter them, so the sewers are the conscience of the city.
Prove that your second-floor sewer branch and main joint are located higher than your sewer inlet, and when there is water coming down upstairs, it will backwater back!