Will the ceiling hit the wires upstairs?

No, it won't.

The thickness of the floor slab of the high-rise residential area is usually about 12cm and 13cm;

Even if the wire pipe for home decoration is on the ground, it only needs to be grooved to a depth of 3-4cm on the ground; The standard is 1-2cm thicker than the diameter of the pipe, the purpose is to make the cement that is refilled in the later stage can fit firmly enough with the original old;

The line of the ceiling layout basically does not need to be slotted on the top surface, and only the main lamps and lanterns of the ceiling will be slotted on the top surface, but this slotting is very shallow, about 2cm at most; The wires of the ceiling downlight are more directly fixed with the top surface of the floor slab with fixed clamps, and then cover it by the ceiling;

Therefore, according to the above, it is impossible for the ceiling to hit the wires upstairs, this is impossible, if it is still mandatory not to believe, you can find a professional instrument to measure the direction of the wire.

Don't worry about the upstairs coming back for you. Possible reasons: First, I didn't touch the wires, which is the upstairs itself. Second, the embedded parts of the ceiling just touched the wire, resulting in broken skin and no electricity, the electrician master moved the wire to avoid the broken skin of the wire, so it was repaired.

It is very likely that when the pipeline is buried, the electric pipe is on the lower steel bar of the floor slab, that is to say, about 3 cm 5 cm on the roof, and the percussion drilling hole is generally more than 5 cm

There is no such possibility, the original house circuit is concealed in the roof and wall, that is to say, the circuit of his house is buried in the roof and wall of his house, only the part of the circuit transformation will go to the ground when decorating, but the electric pipe is laid on the floor and then paved with bricks, when you do the ceiling, unless the floor is pierced, it will hurt the electric pipe of his house, and the ceiling punching cannot be so deep, this situation is impossible.

It shouldn't hit their wires, the height of the cement floor on the roof is more than 10 centimeters, and the impact drill is about 4 centimeters.

It has nothing to do with you at all, your roof is the ground upstairs is a reinforced concrete floor, the net thickness is 9cm, and the steel nails used for the construction of your ceiling keel base are so long.

The property is net nonsense,

Which room is your ceiling installed in?