Hi Habr!
More often in articles they cite colorful pictures instead of electrical circuits, because of this, disputes arise in the comments.
In this regard, I decided to write a short educational program on the types of electrical circuits classified in Unified system for design documentation (ESKD).
Throughout the article I will rely on ESKD.
Consider .
This GOST introduces the concepts:
- type of circuit - classification grouping of circuits, distinguished by the features of the principle of operation, composition of the product and the links between its components;
- schema type - classification grouping, allocated on the basis of their main purpose.
Let's agree right away that we will have the only type of schemes - electrical diagram (E).
Let's figure out what types of circuits are described in this GOST.
| Scheme type | Definition | Schema type code |
|---|---|---|
| Structural diagram | A document that defines the main functional parts of the product, their purpose and relationships | 1 |
| Functional diagram | A document explaining the processes occurring in individual functional chains of a product (installation) or a product (installation) as a whole | 2 |
| Schematic diagram (full) | A document that defines the complete composition of the elements and the relationship between them and, as a rule, gives a complete (detailed) understanding of the principles of operation of the product (installation) | 3 |
| Connection diagram (mounting) | A document showing the connections of the component parts of the product (installation) and defining the wires, bundles, cables or pipelines that make these connections, as well as the places of their connection and input (connectors, boards, clamps, etc.) | 4 |
| Wiring diagram | Document showing the external connections of the product | 5 |
| General scheme | A document defining the components of the complex and connecting them to each other at the place of operation | 6 |
| Layout diagram | A document that determines the relative location of the component parts of the product (installation), and, if necessary, also bundles (wires, cables), pipelines, light guides, etc. | 7 |
| Combined scheme | A document containing elements of different types of schemas of the same kind | 0 |
| Note - The names of the types of circuits indicated in brackets are set for electrical circuits of power structures. | ||
Next, we consider each type of circuit in more detail in relation to electrical circuits.
Main document: .
So, what is it and what do these electrical circuits βeatβ with?
We will be answered by GOST 2.702-2011: Electric scheme - a document containing in the form of conditional images or symbols the components of the product, acting with the help of electrical energy, and their relationship.
Electrical circuits, depending on the main purpose, are divided into the following types:
Electrical structural diagram (E1)
The block diagram depicts all the main functional parts of the product (elements, devices and functional groups) and the main relationships between them. The graphic construction of the diagram should provide the best idea of ββthe sequence of interaction of functional parts in the product. On the lines of relationships, it is recommended that arrows indicate the direction of the course of processes occurring in the product.
An example of an electrical structural diagram:
Electrical functional circuit (E2)
The functional diagram depicts the functional parts of the product (elements, devices and functional groups) involved in the process illustrated by the diagram, and the links between these parts. The graphic construction of the scheme should give the most visual representation of the sequence of processes illustrated by the scheme.
An example of an electrical functional diagram:
Electrical circuit diagram (complete) (E3)
The schematic diagram depicts all electrical elements or devices necessary for the implementation and control of installed electrical processes in the product, all electrical interconnections between them, as well as electrical elements (connectors, clamps, etc.) that end the input and output circuits. It is allowed to depict connecting and mounting elements installed in the product for design reasons on the diagram. Schemes are performed for products that are in the off position.
An example of an electrical circuit diagram:
Wiring diagram (installation) (E4)
The connection diagram should depict all devices and elements that make up the product, their input and output elements (connectors, boards, clamps, etc.), as well as the connections between these devices and elements. The location of the graphic symbols of devices and elements on the diagram should approximately correspond to the actual placement of elements and devices in the product. The arrangement of images of input and output elements or outputs within graphic symbols and devices or elements should approximately correspond to their actual placement in the device or element.
An example of a wiring diagram:
Wiring diagram (E5)
The connection diagram should show the product, its input and output elements (connectors, clamps, etc.) and the ends of wires and cables (stranded wires, electric cords) connected to them for external installation, near which data on the connection of the product (characteristics) are placed external circuits and (or) addresses). The placement of images of input and output elements within the graphic designation of the product should approximately correspond to their actual placement in the product. The diagram should indicate the positional designations of the input and output elements assigned to them on the schematic diagram of the product.
Example of electrical connection diagram:
General electrical circuit (E6)
The general scheme depicts the devices and elements included in the complex, as well as wires, bundles and cables (stranded wires, electrical cords) connecting these devices and elements. The location of the graphic symbols of devices and elements on the diagram should approximately correspond to the actual placement of elements and devices in the product.
An example of a general electrical circuit:
Electrical arrangement diagram (E7)
The layout diagram depicts the component parts of the product, and, if necessary, the connection between them, the structure, room or area on which these component parts will be located.
An example of an electrical layout diagram:
Combined electrical circuit (E0)
In this type of diagrams, various types are depicted, which are combined with each other in one drawing.
An example of a combined electrical circuit:
PSThis is my first article on HabrΓ©, do not judge strictly.
Source: habr.com