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The electrical control circuit diagram is used to describe the electrical principle of the electrical control equipment and the technical drawings for installation and debugging, including electrical schematic diagram, electrical installation location diagram, electrical installation wiring diagram and electrical installation interconnection diagram.
Electrical circuit diagram
Electrical wiring diagrams are drawings that describe the wiring relationships and principles of control wiring and are divided into electrical schematic diagrams and electrical installation wiring diagrams.
Start-stop control
Classification of electrical schematics:
Main: High current through partial assistance: control, lighting, indication
Drawing rules for electrical schematics:
Main: thick solid line auxiliary: thin solid line
Electrical symbolism:
Usually placed vertically, it can also be rotated 90 degrees counterclockwise. The state of the electrical components in the figure is normal (unpressed, unenergized...)
Positive reversal
Electrical principle drawing method
1, check the line drawing method (common method):
According to the principles from the main to the auxiliary, from top to bottom, from left to right analysis of electrical schematics. More complex graphics can usually be divided into zeros, and the control circuit can be turned into detailed analysis of several independent links. Then, it is strung together as a whole analysis.
2, the logic of algebra
Use logic algebra to describe the working relationship of the control circuit.
chain
The symbols of each part of the electrical components in the electrical schematic diagram are irrelevant to the actual position. According to the principle, the electrical symbols can be drawn at any desired circuit location.
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