An electronic ground is usually a reference point where voltage is zero. There are three known types of electric grounds. Not all three are actual grounds but these are referred to as electronic grounds by electronic engineering. This table gives the electrical ground symbols for its users to use in different illustrations and diagrams and moreover all the description and details of each electrical ground via site links and visuals.
Electrical ground symbols of circuit diagram - earth ground, chassis ground, digital ground.
| Symbol | Name | Description |
 |
Earth Ground | Used for zero potential reference and electrical shock protection. |
 |
Chassis Ground | Connected to the chassis of the circuit |
 |
Digital / Common Ground |
Electrical grounds include chassis ground, Earth ground, & Digital/common ground. All these grounds are of different properties, uses and symbols.
Earth ground is the actual ground from all three types as it includes the physical connections of electrical circuits with the ground( earth) via a cable and part of the metal. This process is commonly used for open point circuits in order to save people from electric shock hazards. It is symboled as " 
''.
In this electrical ground chassis of the circuit serves as ground and the physical connection of the circuit is with its chassis board. Its symbol is" 
".
It is an imaginary digital ground where there is no coupling of analog signals at all. Its symbolic illustration is 
.
Moreover, all the detailed illustrations and symbols are above in the table.
More often than not the ground image you are generally acquainted with, the 3 diminishing length lines, is the one that is utilized from a nonexclusive perspective to show ground. The three askew lines and the diminishing even bars address frame and earth ground, respectively.04-Feb-2020