-
The site electrician is to correspond to the operation of all pipelines and circuit wiring according to the pre-designed drawings.
There are two types of embedding:
1. Foundation and shear wall.
Embedded. Generally, the pre-embedding of construction and installation projects starts with foundation grounding, and at this time it is necessary to do a good job in the welding work of foundation grounding, and check the actual construction from beginning to end against the foundation grounding drawings to see if there is any omission or the length of the welding lap is not enough, and there is virtual welding.
2. Roof embedding: Roof embedding is also the largest part of the embedded project, which includes strong electricity, fire alarm, and integrated wiring.
etc. system, the amount of piping is large, the construction period is tight, and it is easy to make mistakes, which requires that the early stage of construction must be prepared to reduce the mistakes that should not be made.
-
Although I'm not a "construction site electrician", I probably understand what you mean by embedding. It should be a pre-embedded cable. Optical fiber. Cable TV is closed. Monitor the line. Something like that. But the big principle should be done according to the requirements on the drawing.
-
According to the drawings, the inner line pipe in the wall is laid.
-
Embedded in a building refers to pre-embedding, as the name suggests, it is buried before pouring concrete.
In building construction, there are generally few pipelines that go open. In the general cast-in-situ structure, when binding the steel bar, the wire pipe is fixed on the template and the steel bar, and the pipe is in the structural component after pouring concrete, which is convenient for future threading.
-
The meaning of pre-embedding is to be pre-buried, such as the drainage pipe through the concrete wall of the basement, and it cannot be chiseled then, so the casing is buried before the concrete is not poured. Lighting line pipes, power line pipes in the wall or in the cast-in-place plate should also be buried in advance, elevator shaft wall concrete wall first buried iron ......All of these are called pre-embedded! Everything is foreseen, and if you don't prepare, you will be wasted!!
Take a look at it yourself and you'll understand!!
-
Pre-embedding is pre-embedded.
For example, pipelines, weldments, and the like.
-
1. Water supply and drainage;
1) The length of various casing gas buried in the shear wall should be equal to the thickness of the shear wall, the inside of the casing should be brushed with anticorrosive paint, and the casing should be fixed on the steel bar and grounded;
2. The casing embedded in the kitchen and bathroom room, corridor, and roof floor slab should be at the same level as the roof, and the upper height should be 5mm higher than the decorative surface;
1) The lower part of the casing embedded in the hydropower well is the same as the roof, and the upper part is 5mm higher than the finished surface;
2) The two ends of various casings embedded in the rear masonry wall should be 2mm higher than the wall, and the casing should be brushed with anti-rust paint;
3) The embedded water supply pipe can only be concealed after passing the pressure test.
3. Electrical; (1) The lightning protection and grounding device of the foundation raft, the flat steel that leads out, the down line, the test point, the reserved grounding steel plate, the equalizing ring, and the anti-side lightning can be concealed after the supervision and acceptance;
2) The embedded PVC line pipe should be a heavy-duty pipe, and the joints of the pipe should be glued and connected with a direct casing. The pipe is laid in the middle of two layers of steel bars and is fixed on the steel bar with wire ties;
3) The line pipe of 32 and above should not be bent, and the finished elbow with large arc should be used;
4) The height of the intersection and overlap of the line pipe should not be higher than the height of the upper reinforcement;
5) The line pipe at the place where the ground is drawn out or the beam plate is led down should be more than 50mm higher than the concrete surface or template, and the nozzle should be sealed tightly with tape paper;
6) The inside of the metal wire pipe should be anti-corrosion, and the connection should not be welded against the counterpart, and the cross-welding (including the metal wire box) should be done and the grounding should be done;
7) The wire box embedded in the concrete should be filled with sawdust or newspaper and then sealed with tape paper, and the wire box should be close to the template and connected with the wire pipe with the lock nut. The wire box embedded in the rear wall should be higher than the wall.
3. Cooperate with civil engineering to do a good job of various reserved holes;
4. After the pre-embedding work of the distribution sub-project is completed, the first self-inspection is carried out, and various installation and concealment data are done;
5. Concealment can be concealed only after passing the inspection and supervision.
-
Summary. Pro, the site is generally embedded with a foundation and a shear wall.
Pro, the site is generally embedded with a foundation and a shear wall.
1. Embedded foundation and shear wall. Generally speaking, the pre-embedding of the construction and installation workers is from the grounding of the foundation. At this time, the welding of the foundation grounding must be done well, and the actual construction should be checked from beginning to end against the foundation grounding drawings to see if there are any omissions, the length of the welding lap is not enough to destroy the posture, false welding, etc.
2. The roof is embedded. Roof pre-embedding is also the largest part of the pre-embedding project, including high voltage, fire alarm, integrated wiring, etc. The system has a large amount of piping and a tight construction period, which is easy to make mistakes, which means that we must be prepared in the early stage of construction to avoid mistakes.
1. Water supply and drainage pre-embedded: casing out of the house, riser through the floor casing (including balcony, toilet, tube well, floor drain, condensate; If there is still air-conditioning water, then it is necessary to add the water supply, backwater, and drainage of the air-conditioner, which are mainly casings that penetrate the wall and the good person wears the floor). 2. Electricity pre-embedded: >>>More