Water Inside 50m Arota Casing Pipe (Blue fi40): Preventing & Removing Water Intrusion Solutions

Hello,
- I have a question: a year ago I buried almost 50 m of the Arota casing pipe (blue fi40). Probably somehow I didn't secure the tips sticking out of the ground and water got into the pipe. There must be a lot of water, because when you pulled the cable into the pipe, you could hear a clear gurgling sound. Could this water be in this pipe? If not, how do you get rid of it?

Regards

5050piotr wrote:

Could this water be in this pipe?

Not.

5050piotr wrote:

If not, how do you get rid of it?

Ask this (electrician) what puts the cable in the "water" conduit.

Get rid of it in no way anymore. Unfortunately, the phenomenon is frequent in wetlands.

The problem is that you don't lay cables like you usually do, and when the hole fills up, nobody sees what it is like. I personally treat the arrot as a shield against accidental damage to the cable. When someone kicks and sees an arrot, he stops to see what it is. And that's it.

You did not necessarily secure the ends poorly on the ground - it is possible that the pipe acted as a drain, there is no 100% certainty that it is hermetically sealed along its entire length.
Also, I am curious how to get rid of the water in such a medium completely.
kisses

We once chose such problems with a large compressor and heater at our disposal. The casing pipe was practically completely in the water for a distance of about 10m, including its outlets. We pushed the water out under pressure and dried the pipe by forcing the heated air. Unfortunately, the pipe was damaged and was replaced.

But why if it stretches again? This water doesn't really matter. The pipe itself and its connections do not guarantee watertightness. It is only a protection against damage to the cable sheath, and also facilitates its later replacement in hard-to-reach places.

Thank you for the explanation - we used to use compressed oxygen around 6 atmospheres once - although the pipe was not for the wires, but we did not get rid of the water completely.
Buddy robokop - water in such culverts will guarantee that the cables laid in it, and God forbid, the cables will drastically shorten their life - proven in practice.
Kisses

robokop wrote:

Get rid of it in no way anymore. Unfortunately, the phenomenon is frequent in wetlands.

I still do not know if this water in this pipe is harmful to the cable placed in it, but the question arises whether it is at all possible for the arota pipe to never take water? I saw such muffs to connect two sections of this pipe; - are not airtight. We do not know what is happening to this pipe in the ground, it can be punctured many times. It does not fall on a steady decline, so when the water flows into it, it will not run out until the end of the world
Or maybe it can be: YKY cable stay in the water for good?
Regards

Buddy, I answered you above - it's okay! It is best to lay the cable directly in the ground following the appropriate rules.
kisses

kasprzyk wrote:

Buddy robokop - water in such culverts will guarantee that the cables laid in it, and God forbid, the wires will drastically shorten their life

And the cables laid directly in the mud and lying in it for decades? I will write the Arrot tube again - it does not guarantee waterproofness, just like its connections. Take a look at the new corrugated tube - bubbles hit. The same applies to the ends of such pipes, which were sealed either with assembly (construction) foam or with bituminous mass for couplings.

Quote:

proven in practice.

Nothing has been proven in practice, just sloping - torn / worn coating when laying the cable - probably pulled forcibly without rollers and "stockings"
It is the cable sheath that should be tight and provide protection against moisture - water will not harm it then. And he would go wherever, often quite long sections from the warehouse went to scrap, because it turned out that the cable with its blind end sucked in moisture from the surroundings like a capillary.

Fun fact- Product description - YKY cable So?

Let me copy a fragment of the description for what some practitioners do:

Quote:

Product description
3 x 4 mm? power cable. Copper conductors.
Rated voltage 0.6 / 1 kV. Working temperature from -30 to + 70 ° C. Intended use: power lines routed in the air, water , concrete, indoor spaces, cable ducts, directly in the ground.

So to sum up, the water in the pipe does not matter as long as the cable sheath is intact. Anyway, what is better teletechnical and SN cables have an additional protection in the form of gelling powder under the coating, sealing the damage against water penetration.

Cables are also laid at the bottom of lakes, rivers and seas, and this is nothing new

Without exaggeration, what bothers you with water in arota?
My colleague Robokop explained everything very clearly and he is right.
It does not matter to cables (not wires) whether they lie in water or in a dry pen, it is important that they do not lie in debris.
The ends of the culverts are protected against fouling with a felt-tip pen and not against water, water will get there anyway.
Someone wrote that he blew water out of arota. It's probably just for the sake of feeling better, because if he looked there after a week or two, he would see that the arot is full of water again.

masonry wrote:

Someone wrote that he blew water out of arota. It's probably just for the sake of feeling better, because if he looked there after a week or two, he would see that the arot is full of water again.

Is it like that to the end? And what if there were wires in the arota and some foreman did not properly secure its ends against these works? After some time, water got inside, and then what? The wires won't shoot?

Write it in Polish, I do not fully understand.
When it comes to laying a new cable, I have not encountered that the end of the cables does not protrude above the ground or is located at the top of the well with the ends secured with tight caps, or with a thicker foil bag secured with electrical tape, or something like that. Cables are put into place only after making a joint, tee or something.
When repairing a cable in such a place, you dig a much deeper hole, pump water out of it, cut about 5 m of cable and earn two new couplings.

JohnySpZOO wrote:

Is it like that to the end? And what if there were wires in the arota and some foreman did not properly secure its ends against these works? After some time, water got inside, and then what? The wires won't shoot?

Only cables are laid in the ground. Even arota cables should not be laid in the ground.
You have to distinguish between what are cables and what are wires.
If someone bothered the job by laying cables not intended for this in the ground, he must reckon with breakdowns.
I repeat again, if the area is wet, the water in the culvert will be whether we like it or not.
More than once when such arota has been damaged by an excavator, water can gush out of it almost like from a water pipe.

masonry wrote:

Only cables are laid in the ground. Even arota cables should not be laid in the ground.
You have to distinguish between what are cables and what are wires.
If someone bothered the job by laying cables not intended for this in the ground, he must reckon with breakdowns.
I repeat again, if the area is wet, the water in the culvert will be whether we like it or not.

You don't have to tell me, buddy, only those who have pissed off such a 'maniana' or are still doing it. You bring them to the place and you see the specialists and you grab your head.

Further fruitless discussion of this thread does not make sense and the topic itself can probably be closed.

[quote = "JohnySpZOO"]

masonry wrote:

Further fruitless discussion of this thread does not make sense and the topic itself can probably be closed.

From a dozen or so posts - despite the diametrical differences in some answers - I draw the following conclusions:
1. Arota pipes and other similar structures do not hermetically cover the cable inserted into them.
2. The presence of water in the arota pipe, which protects the cable against mechanical damage and sometimes allows its replacement, is a rather frequent case and is not inconsistent with any regulations or recommendations.
3. YKY cable can be placed directly in the water, ie in an arota pipe filled with water as much as possible
If my conclusions are true (?), I guess I really need to thank you for fruitful discussion and close the topic.
Regards

And in my opinion, the discussion cannot be closed yet, because:
1. The link I gave is a link to the wholesaler, not the manufacturer.
2. The manufacturer is to make the cable according to the appropriate standard, i.e. in this case, as I remember correctly: BBJ-98 / KT - 1306
3. There are "special" cables to lead routes in the water deeper than 10m.
4. A cable laid directly in the water - still, it's not the same as a cable temporarily in wet ground, ie in "earth" conditions.
5. The YKY cable is a general purpose power cable used as power lines routed in the air, indoors and outdoors, in cable ducts and laid directly in the ground, and cables laid directly in the water should be classified as cable routes / lines under special conditions - to special applications, where cables with a moisture barrier are used (e.g. with a water-blocking tape), and the insulation is made of, for example, cross-linked polyethylene, the letter U is often used in the symbolism - longitudinal seal.
6. When laying earth cable routes, it is important to know how to lay protective pipes and how to protect their ends (and for what purpose), and where to use protective pipes, eg of the type: Arot, and for what purpose.

Regards.

Therefore, it is best to use the data sheets of the cable manufacturers.
Random random Link with google (lest there be that ad).