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The single-line diagram is the blueprint for electrical system analysis. It is the first step in preparing a critical response plan, allowing you to become thoroughly familiar with the electrical distribution system layout and design in your facility.

Electrical Symbols and Their Meanings Rectifier. Phase Meter. 240V Outlet. Flow Switch. NOR Gate. Continuously Adjustable Resistor. Normally open foot switch. Timer off delay, normally open.

Common Electrical and Lighting Symbols Duplexes. A circle off of the wall and connected to it by two parallel lines represents a typical outlet (or receptacle) with two sockets. ... Lights and fans. ... Switches. ... Appliances. ... Wire Runs.

There are five commonly used symbols in Electrical ? Switch, Wire, Contactor, Motor, Transformer. These symbols can be used in any electrical drawings. Switches are used for ON/OFF any control circuit.

6.2: Types of Electrical Diagrams Schematic Diagrams. Wiring diagrams. Block diagrams. Pictorial diagrams.

A symbol on a wiring diagram represents a specific electrical component within the circuit. Before you can learn how to read a diagram, you must understand what each symbol represents. Recall that wiring diagrams include a legend. The legend explains what certain symbols on the diagram represent.

The most common circuit symbols are those used for the cell, battery, switch, resistor, ammeter, voltmeter, lamp, fuse, diode and LED. What are the 5 parts of a circuit? The 5 parts of a circuit are the power source, conductor, switch, load and any other component (capacitor, transistor, etc.).