Combined with civil engineering, we can see the hydropower diagram, whether the size of structural beam, the size of embedded casing is reasonable, what is the building elevation, and whether the service height of the room is affected after the installation of hydropower facilities. Room size, wall size, raft thickness, leveling layer thickness, insulation is internal or external insulation, insulation layer thickness, interior and exterior wall decoration layer thickness, these data can be accurately embedded, reserved and made.
The following are the meanings of common symbols in hydropower installation drawings.
SC: steel pipe
PC: PVC polyethylene flame retardant plastic pipe
CT: bridge
Toilet: Buried along the wall
WS: laying along the wall.
Cc: buried along the roof
F: Hide in the floor.
CE: exposed along the roof
YJV: cable
SYV: TV line
PE: grounding (yellow-green phase)
Pen: zero (blue)
Line 3 (live wire): A (yellow) B (green) C (red) KV: (voltage) kV: scattered wire.
MEB: total equipotential
LEB: local equipotential
Line laying mode code
PVC ―― Laying Flame Retardant Plastic Pipe
DGL- Electrical Steel Pipe Laying
VXG- laying with plastic trunking
GXG- laying with metal trunking
KRG- laying with flexible plastic pipe
Line exposure location code
LM- Laying along the roof truss or the lower chord of the roof truss
Zm- laying along the column
QM- Laying along the wall
Laying along the ceiling
Line concealed laying position code
La- hidden in the light beam
ZA- hidden in the column
QA- Hidden in the Wall
Pa- hidden in the roof or ceiling.
Da- hiding in the ground or on the floor.
PNA-Hidden in the unreachable ceiling.
Lighting installation specification:
D-ceiling
L chain suspension type
G tube suspension type
B- wall-mounted
R- embedded
Br- wall installation
Marking method of distribution lines:
a――b(c×d)e――f
These include:
A cycle number
B conductor model
C- number of wires
D conductor section
E- laying method and pipe diameter
F- laying parts
Marking method for ceiling installation of lamps and lanterns:
Number of lamps
Type b or number
C- number of bulbs per lighting device.
D- bulb capacity,
Installation height of light bulb,
method of erection
L light source, incandescent lamp or fluorescent lamp
Common ways of laying lines in electrical design and construction drawings;
SR: Laying along steel trunking.
BE: Laying along or across the roof truss.
CLE: placed along or across a column.
We: Lying along the wall.
CE: laying along the ceiling surface or ceiling surface.
ACE: It is laid on the ceiling where people can enter.
BC: Buried in the beam.
CLC: Buried in a column.
WC: Buried in the wall.
Cc: Buried in the ceiling.
ACC: Buried in an inaccessible ceiling.
FC: Buried underground.
SCE: When laying in the ceiling, metal pipes should be worn.
First, the wire goes through the pipe and says
Super capacitor welded steel pipe
MT- catheter
PC-PVC plastic rigid pipe
FPC flame retardant plastic rigid pipe
Current transformer bridge
MR- metal trunking
Mobile cable
CP- metal hose
Plastic trunking
Reinforced concrete galvanized steel pipe
Second, the expression of conductor laying mode
Direct burial
TC- cable trench
BC- hidden in the light beam
CLC- hidden in the column
WC- hidden in the wall
CE- laying along the ceiling
CC- hidden in the ceiling
SCE- Laying in suspended ceiling
F- under the floor and terrace
SR- along the cable
BE- along the roof truss and beam
Together ... >>
Question 2: How to combine the hydropower system diagram with the floor plan? A, the design of hydropower design drawings are:
Design description.
Main equipment and materials.
Various system diagrams such as: XX water supply system diagram, XX wiring system diagram, XX distribution box system diagram and so on.
Various floor plans, such as: distribution plan of XX floor of XX building, water supply and drainage plan of XX floor of XX building, etc.
Second, the function of system diagram and floor plan: (Take the weak current system of a building as an example)
System diagram: refers to the overall layout diagram of the weak current system of this building. (1) only points out the specifications of the wires of the whole weak current system, which enter from several floors, branch to several floors, and finally terminate. (2) How many telephones, closed-circuit television, access control visual intercom are available on each floor. (3) The whole building is connected to this floor through modules and junction boxes. (4) So from the incoming line to the end, it is the general plan of the weak current system of the whole building, and there is no specific installation location.
Floor plan: It is the accurate layout of X layer of weak current system in this building. (1) What are the specifications and models of telephone, closed-circuit television, access control visual intercom, etc? On the X floor, where and at what height are they installed? (2) What specifications and models of wires are used for these terminals, and how the laying height is connected to the specific place of the weak current well in this layer (open or concealed, plastic pipe or steel pipe, trough plate or bridge, etc.). (3) What are the specifications and models of modules and junction boxes installed at specific positions and heights? (4) Therefore, this is the accurate layout of weak current installation in X-story building.
The function of system diagram and plan diagram is the function of surface and point.
Third, when you look at the picture, you should know the specifications, models and specific installation locations of the lines through the plan, but you should also combine the system diagram to see where these lines are finally connected and whether they are a system. Each floor should eventually be connected to a specific line. That is, find the connection points on the system diagram and the installation points on the floor plan.
Question 3: what do you think of the hydropower map 1? Look at the hydropower map, first recognize the legend in the map.
2. Look at the plan and system diagram according to the legend.
3. Then look at the plan together with the system diagram.
4. Knowing the drawings definitely does not mean knowing the construction.
5, to the construction site to learn construction experience.
6. Connect the construction experience with the drawings to form the three-dimensional concept of the building.
The above are the main points of drawing, hoping to help the factory owner.
Question 4: What do you think of the drawings of hydropower installation and construction? You should have a certain foundation. If you ask me, you should at least understand the legend and be familiar with the design description. Then, look at the drawings according to the legend given in the drawings. When reading the drawings, you can do it in the order of introduction pipe-water meter well-main pipe-branch pipe-water equipment, which saves time and is accurate. Note that the water supply and drainage diagram must not be closed, and the electrical diagram has a loop. Probably similar to the construction drawing, all lines, especially with legends. Most people can't understand it because some lines are oblique, but notice that there are no diagonal lines in the building, and diagonal lines are all horizontal lines.
Question 5: What do you think of the water and electricity embedded drawings? It is easy to read drawings, but it is not easy for beginners. 1, the first thing to learn is legend; Understand the meaning of drawing description (the first page of each set of drawings is drawing number, and the second page is drawing description). 2. Remember the scale and drawing number of the drawing. The residential drawing is generally the same as our map, with the north facing south (a factory building or a business building). 4. Be familiar with the specifications and keep in mind the design requirements (because every house has its own requirements). 5. Finally, deepen the thesis. Both water drawing and electric drawing should understand the system, or eat a piece.
Question 6: What do you think of the high-rise hydropower system diagram? First find the stairs in the picture, judge the direction of the picture according to him, and then look at it room by room.
Question 7: How to read the drawings of building water and electricity? Then you should start with the basic drawing recognition, and first introduce some basic steps to recognize (water supply and drainage) engineering construction drawings. When recognizing the water drawing, you should look at the direction of water flow (of course, you must look at the catalogue, general description, list of main materials and equipment, and icons of some basic control accessories and accessories of the whole construction drawing. You can refer to the relevant national standard atlas, which is the foundation).
For example, water supply: water supply inlet pipe (numbered for easy identification)-water supply riser (also numbered)-water supply horizontal pipe-water supply branch pipe, and drainage is in the opposite order.
I suggest you first look at the relevant map identification basis (drawing method and projection principle of pipeline on plane, elevation and section).
If you can't read any construction drawings, you will learn more.
Question 8: What do you think of the legend of the plumber's construction drawing? This is the line number. Routes are generally divided into several ways. For example, some use L 1 and L2. N 1, N2. The number of threads is circled in green. Between the switch and the light, take two wires normally. If you don't understand, you can ask the hydropower supervisor. He will tell you.
Question 9: What do you think of the hydropower system diagram? This should have a certain hydropower foundation. If it is handed in by a master, it will be easy to understand! Just some technical and material requirements!
Question 10: What do you think of the water and electricity installation drawing? Ask for symbols of water and electricity installation drawings? The water and electricity installation drawings made by designers are made in accordance with national standards. You can check the national standards and have a look. More directly, ask the designer who designed them. You will understand after half an hour's explanation!