Electrical schematic symbol

The electrical schematic is a type of electrical system diagram. It is drawn according to the working principle of the control line diagram, and has a simple structure and a clear hierarchy. Mainly used to study and analyze the working principle of the circuit. All components in the electrical schematic diagram shall be in the form of graphic symbols and text symbols as specified in the national standard.

Component technical data needs to be marked in the electrical schematic

(1) Electrical component list: component name, symbol, function, model, quantity, etc.

(2) Note the graphic symbol in its electrical schematic with a small font.

Electrical principle icon note

Common labels are: QS knife switch, FU fuse, KM contactor, KA intermediate relay, KT time relay, KS speed relay, FR thermal relay, SB button, SQ limit switch

After the electrical drawing is commonly used for graphic size design, in the AutoCAD 2006 environment, the common graphic and text symbols of the electrical drawing are drawn, as shown in the figure.

Detailed explanation of the electrical schematic symbols

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