Optical fibre pre-wiring

Hi,
the answer is very simple:
It is strictly forbidden to run telephone or fiber through an Enedis distribution duct.
Your electrician, who doesn't deserve that title, has acted wrongly in relation to Enedis.
Furthermore, an ISP will never touch a connection circuit breaker, and luckily so, given the damage they already cause when installing fiber sometimes, it's better that way.
On Enedis circuits, only Enedis has the right to intervene (even on their ducts, hence the first answer).
By the way,
Enedis may very well decide one day to modify the connection, following the installation of another transformer or something else; on that day, no matter how much you plead with them about your fiber, they will throw it straight in the trash, as it has no place in their duct.
Moreover,
this fiber will probably never be used; the ISP shouldn't accept to use it and make another splice, as that is not their protocol.
In short, if you wanted to go faster, it would have been better to bury a new duct; you would have saved time and money.
On the other hand,
you mention an upstairs box, is it collective or individual?
If it's collective (more than 5 apartments in the building), then there should be a building operator who has already done all the wiring.

--
and ... There you go!

Hello
Fiber only conducts light, unlike traditional phone lines. It's common for ISP installers to use the earth cable sheath to run fiber to the technical premises.
If Enedis alters the connections, it will not affect the earth connection that goes from the electrical panel. What belongs to Enedis is the phase and the neutral.
In our building, there is one floor box per cluster (8 apartments), and nothing has been done to connect the apartments.
I simply want to know if fiber boxes are the same for all operators so I can have them installed before the ISP installers come.
Best regards.

so just forget it

Hello,

There is a possibility of using the earth cable sheath from the electrical installation
I agree with Brupala, it’s not a good idea because additionally, the ISP has to dismantle the circuit breaker and they are not authorized to do that...

In our case, there is a floor-mounted box for each area (8 apartments) and nothing has been done to connect the apartments
Is it really that complicated to have your separation wall from the staircase drilled to run a fiber from this PBO box?
I don’t quite understand your setup in this building...

I just want to know if the fiber boxes are the same for all operators
Yes, the ISP you choose will install a wall-mounted optical socket (PTO) or in the electrical cabinet (DTiO), you will keep this socket if you switch ISPs.

Tell us a bit more about the connection issue between the PBO and your apartment.

Good evening,
Regarding the circuit breakers, the ISPs will not handle them; it will be an electrician who will install the wall optical socket, which is why I wanted to know if the boxes were the same for all ISPs.

As for the location of the floor box, it is under a staircase that is outside, with access to the floor being via an external walkway, somewhat like in budget hotels.
The distance from the bottom of the staircase, using the existing telephone conduits, can reach up to 18m for some apartments.
When these conduits are blocked or have been removed, we need to find a solution. We can go through the outside, which involves digging a trench and then coming up with a duct; this is unsightly and very costly. Using the earth conduits is the cheapest solution.
Best regards

Hello Seventy,

Regarding the location of the floor box, it is under a staircase that is outside, with access to the floor via an exterior walkway.

Oh yes, I see very well, I noticed that in 1970s buildings in Spain:
An exterior stairwell serves the floors, with a walkway that allows access to the apartments.
In the building I know, the PBO fiber boxes were installed on the roof of the building, and the optical fibers come down to the apartments via the facade, under a duct, and enter through the balconies:
under no circumstances do the fibers run through the electrical conduits...

It's up to you to decide if you prefer an economical but non-compliant solution or a regulatory installation, which is more expensive but sustainable.

Thank you for your response.
In our residence, the floor boxes were installed in 2019 under the stairs of each block.
As for compliance, I don’t see what the problem is. The ground of each apartment goes through a conduit, and these conduits lead to a room where they are connected to the ground that goes into the soil. Fiber does not conduct electricity, so I don’t see where the problem could be. This solution is regularly implemented in case of impossibility to go through the existing conduits. I would add that in most cases we manage to use the existing conduits, we pre-wire them ourselves because too often the ISPs give up.

Yes, it's SFR who installed them. Now, connecting the apartments is a bit of a hassle; we manage most of the time, but the ducts are clogged with plaster, and some are crushed...
On average, we spend two to three hours with fiberglass or steel-nylon needles to pull a string so that the ISPs only have to pull the fiber through.

The route through the duct of the ground cable for the apartments, which indeed belong to the co-ownership, is only the backup plan for the upstairs apartments. An electrician will handle this by installing the fiber box in the apartments so that the ISPs only have to splice the fiber at the staircase box.

You summarize the situation well; the subcontractors will just have to weld at the level of the building’s junction box.