A first look at a circuit diagram may be confusing, but if you can read a subway map, you can read schematics. The purpose is the same: getting. Understanding how to read and follow schematics is an important skill for any electronics engineer. This tutorial should What is Electricity? What is a Circuit?Overview · Schematic Symbols (Part 1) · Schematic Symbols (Part 2). Learning how to read an electrical schematic drawing is an important skill for maintenance workers and managers even if they aren't licensed.
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|Published:||22 February 2016|
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Plastic, wood, and air are examples of insulators, inhibiting the movement of electrons high resistance.
DC is a continuous flow of current in one direction. DC can flow not just through conductors, but semi-conductors, insulators, and even a vacuum.
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In AC, the flow of current periodically alternates between two directions, often forming a sine wave. The frequency of AC is measured in Hertz Hzand is typically 60 Hz for electricity in residential and business purposes.
How to read and understand an Electrical Schematic
Attribute information is usually then populated on a Bill of Materials BOM or list of parts required to make the system. Wires Wires create connections and join components together, completing a circuit.
The colour of a wire is usually indicative of its purpose. For example, green wires in a schematic often indicate the connection is going to ground.
Three phase wiring Wire Labels Components, wires and cables are assigned: You'd better get to know the following basic symbols by heart. Lights are shown as ovals with a squiggly line inside.
A Beginner’s Guide to Circuit Diagrams » Electrical Engineering Schools
They look like light bulbs. Different types of lights may be indicated with different symbols.
Switches are symbolized by an opening or break in the line. It looks like the flip of a light switch. Thermostats are symbolized by an opening or break in the line, but they also have a squiggle that connects them to the line.
A fuse is represented by a slight zigzag in the line.
Motors are displayed by bumps along the line. It looks like an "M" with 5 or 6 humps. Ground is represented by how to read electrical drawings a triangle pointing down or a set of parallel lines that become shorter as they appear below each other, in effect representing the inner area of the triangle pointing down.
Ground is a common reference point that schematics use to show the overall unity of the various functions of the circuit. It does not refer to the actual ground of the earth.
A Beginner’s Guide to Circuit Diagrams
Plot plan showing the location of the building on the property and all outside electrical wiring, including the service entrance.
This plan is drawn to scale with the exception of the various electrical symbols, which must be enlarged to be readable. How to read electrical drawings plans showing the walls and partitions for each floor level.