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Electrical Wiring Diagram - EdrawMax

> Edraw Knowledge > Electrical Wiring Diagram - EdrawMax
Posted by James Freeman | 02/27/2021
This article helps you learn about the basics of wiring diagram - what symbols to use, how to read, and how to make wiring diagrams. What's Wiring Diagram

Part 1: What is The Wiring Diagram

A wiring diagram is a type of schematic that uses abstract pictorial symbols to show all the interconnections of components in a system. Wiring diagrams are made up of two things: symbols that represent the components in the circuit, and lines that represent the connections between them.

Therefore, from wiring diagrams, you know the relative location of the components and how they are connected. It's a language engineers need to learn when they work on electronics projects.

Wiring Diagram

Source:EdrawMax


The Usage of Wiring Diagram

Wiring diagrams are often used in engineering and educational fields to illustrate how electronic devices are built. Wiring diagrams are easy to draw and understand. Professionals can study wiring diagrams to determine if electronic devices have been set up properly and safely. In addition, they allow anyone to understand how devices are made up, and can facilitate repairs as well.


Wiring Diagram VS. Schematics

A schematic, or schematic diagram, represents the elements of a system with abstract and graphic symbols instead of realistic pictures. A schematic diagram focuses more on comprehending and spreading information rather than doing physical operations. For this reason, a schematic usually omits details that are not relevant to the information that it intends to convey and may add simplified elements to help readers understand the features and relationships.

A wiring diagram (also named electrical diagram, elementary diagram, and electronic schematic) is a graphical representation of an electrical circuit. Wiring diagrams are widely used for circuit design, construction, and maintenance of electrical and electronic equipment. Wiring diagrams can be divided into two categories - pictorial wiring diagram and schematic wiring diagram.


Part 2: The Wiring Diagram Symbols

Start a wiring diagram design using industry-standard symbols that everybody understands. Here are the symbols that are often used when creating wiring diagrams. The symbols below all come from Edraw. It shows partially from the built-in electrical symbol library.

Wiring diagrams use simplified symbols to represent switches, lights, outlets, etc. Here is the wiring symbol legend, which is a detailed documentation of common symbols that are used in wiring diagrams, home wiring plans, and electrical wiring blueprints.

Electrical switchbox
Single pole switch
Three-way switch
1P switch
2P switch
Electrical switchbox
Single pole switch
Three-way switch
1P switch
2P switch
4P switch
1DP switch
2DP switch
Water tap
Lum. ceiling mount
4P switch
1DP switch
2DP switch
Water tap
Lum. ceiling mount
Encl ceiling lum
Wall light
Circuit breaker
Multi-light bar
Light bar
Encl ceiling lum
Wall light
Circuit breaker
Multi-light bar
Light bar
Downlight
Outdoor lighting
Singleplex receptacle
Duplex receptacle
Double Duplex Receptacle Outlet(Quad)
Downlight
Outdoor lighting
Singleplex receptacle
Duplex receptacle
Double Duplex Receptacle Outlet(Quad)
Triplex Receptacle Outlet
Fourplex receptacle
Range Outlet
Dryer Outlet
Waterproof Receptacle Outlet
Triplex Receptacle Outlet
Fourplex receptacle
Range Outlet
Dryer Outlet
Waterproof Receptacle Outlet
Switch and Convenience Outlet
Split Wired Duplex Outlet
Split Wired Triplex Outlet
Duplex Special Purpose Outlet
Dishwasher Outlet
Switch and Convenience Outlet
Split Wired Duplex Outlet
Split Wired Triplex Outlet
Duplex Special Purpose Outlet
Dishwasher Outlet
Drop Cord
Fan Outlet
Junction Box
Lamp Holder
Lamp Holder with Pull Switch
Drop Cord
Fan Outlet
Junction Box
Lamp Holder
Lamp Holder with Pull Switch
Pull Switch
Vapor Discharge Lamp Switch
Exit Light Outlet
Clock Outlet
Blanked Outlet
Pull Switch
Vapor Discharge Lamp Switch
Exit Light Outlet
Clock Outlet
Blanked Outlet
Television Outlet
Exhaust Fan
Water Heater
Telephone Jack
Electrical Panel
Television Outlet
Exhaust Fan
Water Heater
Telephone Jack
Electrical Panel
Battery
Batten fluores
Distribution box
Modular fluores
Office fluores
Battery
Batten fluores
Distribution box
Modular fluores
Office fluores
Pull-cord switch
Emerg. light
Emerg. sign
Switches
Dimmer switch
Pull-cord switch
Emerg. light
Emerg. sign
Switches
Dimmer switch
Socket outlet
Socket outlet 2
Telephone outlet
Stereo outlet
Ceiling fan
Socket outlet
Socket outlet 2
Telephone outlet
Stereo outlet
Ceiling fan
Ceiling fan 2
Combination fan
Service panels
Thermostat
Air conditioning
Ceiling fan 2
Combination fan
Service panels
Thermostat
Air conditioning
Hold open unit
Detector
Fire alarm
Monitor
Alarm
Hold open unit
Detector
Fire alarm
Monitor
Alarm
Doorbell
Smoke detector
Call
Tel
Main control
Doorbell
Smoke detector
Call
Tel
Main control
Ground
Line
Wire
Cut line
Cut line 2
Ground
Line
Wire
Cut line
Cut line 2


Part 3: How to Read and Create A Wiring Diagram

How to Read A Wiring Diagram

To read a wiring diagram, you should know different symbols used, such as the main symbols, lines, and the various connections.

Step 1: Recognize Wiring Diagram Symbols

To read a wiring diagram, first, you have to know what fundamental elements are included in a wiring diagram, and which pictorial symbols are used to represent them. The common elements in a wiring diagram are ground, power supply, wire and connection, output devices, switches, resistors, logic gate, lights, etc. A list of electrical symbols and descriptions can be found on the "electrical symbol" page.

Simple wiring symbols

Step 2: Line Junction

A line represents a wire. Wires are used to connect the components. All points along the wire are identical and connected. Wires on some places need to cross each other, but that does not necessarily mean that they connect. A black dot is used to indicate the injunction of two lines. The main lines are represented by L1, L2, and so on. Usually, different colors are used to distinguish the wires. There should be a legend on the wiring diagram to tell you what each color means.

Contact and No Contact

Step 2: Types of Connections

Usually, circuits with more than two components have two basic types of connections: series and parallel. A series circuit is a circuit in which components are connected along a single path, so the current flows through one component to get to the next one. In a series circuit, voltages add up for all components connected in the circuit, and currents are the same through all components. In a parallel circuit, each device is directly connected to the power source, so each device receives the same voltage. The current in a parallel circuit flows along each parallel branch and re-combines when the branches meet again.

Series and Parallel Circuit


How to Create A Wiring Diagram

How to make an electrical wiring diagram easily? Using EdrawMax to create your own electrical wiring diagram.

Step 1: Open EdrawMax desktop software or EdrawMax web-based application.

Step 2: Navigate to [New]>[Electrical Engineering]>[Basic Electrical]

Open  wiring design diagram

Step 3: Select one wiring diagram template to edit on it or click the [+] sign to start from scratch. Also, you can use massive wiring design diagram symbols and elements from libraries in left menu to customize your wiring design diagram.

Choose a wiring design diagram template in EdrawMax

Step 4: Once finished your creation, you can export the file in multiple formats, including Graphics, PDF, editable MS Office file, SVG and Visio vsdx file.

Save or export wiring design diagram in EdrawMax

Step 5: Besides, you can share your diagram with others via social media and web page. Or publish your diagram in EdrawMax template gallery to show your work with others.

share and publish wiring diagram in EdrawMax

If you are still confused the steps of how to create a wiring diagram in EdrawMax, here is a video guide to help you understand how to create a professional wiring diagram in detail.




Part 4: Wiring Diagram Maker - EdrawMax

EdrawMax is a powerful but easy-to-use wiring diagram software that makes it easy to create professional-looking wiring diagrams based on pre-formatted wiring diargams templates and examples - with no drawing required. The smart wiring diagrams symbols are designed with auto generation arrows, allowing users to add and connect shapes easily.

EdrawMax is available for Windows, macOS, and Linux. The tool has several categories for almost all types of industries, and each category further has numerous templates to choose from, thus saving you a lot of time that you would otherwise waste in structuring a diagram, wiring diagram for this example, from scratch.

EdrawMax

All-in-One Diagram Software
Create more than 280 types of diagrams effortlessly
Start diagramming with various templates and symbols easily
  • Superior file compatibility: Import and export drawings to various file formats, such as Visio
  • Cross-platform supported (Windows, Mac, Linux, Web)
Security Verified | Switch to Mac >>
Security Verified | Switch to Linux >>
Security Verified | Switch to Windows >>


Part 5: Wiring Diagram Examples

Here are some examples showing brilliant works done by Edraw wiring diagram software.

Example1: Harness Wiring Diagram

Harness Wiring Digram

This harness wiring diagram shows how to match up the wires for each connection to the wiring harnesses.

Example2: Electrical Wiring Diagram

Electrical Wiring Diagram

Create an electrical wiring diagram to display wire connections and the physical layout of an electrical system or circuit.

Example3: Semiconductor Electron Diagram

Semiconductor Electron Diagram

Semiconductors are used extensively in eletrical circuits and most of them are crystals that are made of silicon.


Part 6: Conclusion

According to this article, there are mainly four parts to illustrate what is the wiring diagram, to tell you the symbols of wiring diagram design diagram, and to show you how easy and helpful EdrawMax wiring diagram tool is, then shows some wiring diagram templates and examples. Creating a perfect wiring diagram with EdrawMax is an effective way to design.

EdrawMax is an easiest all-in-one diagramming tool, you can create wiring diagrams and any other type diagrams with ease! With substantial wiring diagram symbols and cliparts, making wiring diagrams could be as simple as possible. Also, it supports to export your work in multiple formats and share your work with others. Get started to create your wiring diagrams now!

Expert Tips:

  1. A good wiring diagram needs to be technically correct and clear to read. Take care of every detail. For example, the diagram should show the correct direction of the positive and negative terminals of each component;
  2. Use the right symbols. Learn the meanings of the basic circuit symbols and choose the correct ones to use. Some of the symbols have a close look. You need to be able to tell the differences before applying them;
  3. Draw connecting wires as straight lines. Use a dot to indicate line junction, or use line jumps to indicate cross lines that are not connected;
  4. Label components such as resistors and capacitors with their values. Make sure the text placement looks clean;
  5. In general, it is good to put the positive (+) supply at the top, and the negative (-) supply at the bottom, and the logical flow from left to right;
  6. Try to arrange the placement, reducing wire crossings.


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