# Earth electrode

Canonical URL: https://eloragrid.ai/symbols/iec-earth-electrode
Publisher: Elora Grid
Updated: 2026-10-28
Lookup label: E
Drawing use: SLD, GA
Reference families: IEC

## Symbol convention

Convention: IEC
Form: Earth electrode
Independent IEC-context illustration; not certified IEC geometry.

A conductor in contact with the ground, such as a driven rod, providing the installation's connection to earth.

## In plain English

### What does Earth electrode mean?

The earth electrode symbol marks a rod, plate, tape or foundation electrode that makes contact with the general mass of the earth. It appears on earthing diagrams and site layouts, often numbered so that individual electrodes can be tested and recorded.

### A simple example

The symbol does not tell you the electrode resistance, length, material or depth. Those come from the earthing design and test records. Multiple electrodes drawn together are only effective if spaced appropriately; electrodes too close together share the same soil and add less than expected.

### What the drawings help you do

Read electrode numbering for test records. Check spacing between multiple electrodes. An earth electrode is the physical contact with soil; an earth connection symbol is any connection to the earthing system.

### This particular reference

A conductor in contact with the ground, such as a driven rod, providing the installation's connection to earth. An earth electrode is the physical contact with soil; an earth connection symbol is any connection to the earthing system.

### Terms

- Normally open / normally closed: The contact state in the normal condition defined for the drawing.
- Schematic: A drawing showing function and connections rather than physical appearance.

Concept diagram: Identify the device and form → Read the connections and state → Check the equipment reference
A guide to reading this reference. The original symbol illustration and its drawing notes appear below; these boxes are not a wiring diagram.

- [Earthing connections](https://www.electrical-installation.org/enwiki/Earthing_connections)
- [AutoCAD Electrical: Earthing, sources and surge protection](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-1E3FDEAE-B4B2-417C-8075-108AA2C6E509.htm)


## What it represents

The earth electrode symbol marks a rod, plate, tape or foundation electrode that makes contact with the general mass of the earth. It appears on earthing diagrams and site layouts, often numbered so that individual electrodes can be tested and recorded.
The symbol does not tell you the electrode resistance, length, material or depth. Those come from the earthing design and test records. Multiple electrodes drawn together are only effective if spaced appropriately; electrodes too close together share the same soil and add less than expected.

## How to read it

- Read electrode numbering for test records.
- Check spacing between multiple electrodes.

## Information to show or reference

- Number each electrode.
- State type, length and material.
- Show the test link location.

## Important distinction

An earth electrode is the physical contact with soil; an earth connection symbol is any connection to the earthing system.

## Facts

- Graphic cue: Earth symbol on a vertical rod line
- Does not show: Resistance, length or material
- Preview: Original educational illustration; consult the publisher and applicable standard for the exact graphic

## Public references

- [Earthing connections](https://www.electrical-installation.org/enwiki/Earthing_connections) — Schneider Electric, Electrical Installation Guide. Public installation-guide definition of earth electrode.
- [AutoCAD Electrical: Earthing, sources and surge protection](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-1E3FDEAE-B4B2-417C-8075-108AA2C6E509.htm) — Autodesk. Public IEC-oriented earth forms.

## Graphic scope

Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.