PE
Protective earth
An identified connection serving the protective earthing function.
SLD / Schematic
Symbols · SPARK GAP
Spark-gap protective element
A spark-gap element provides a documented breakdown path across separated electrodes.
SLD / Schematic · SPARK GAP
What it represents
A spark-gap element provides a documented breakdown path across separated electrodes. Its drawing identifies the protective location without implying the same behaviour as a semiconductor clamp.
How to read it
- Read the gap and protection characteristics from the actual device documentation.
- The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation.
Information to show or reference
- Identify connected points
- Reference protection rating
- Show discharge path
A distinction that matters
A spark-gap element and a varistor use different protective mechanisms.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
AutoCAD Electrical: Earthing, sources and surge protection
Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic.
About this graphic
This illustration was authored independently by Elora Grid to explain the concept. It is not reproduced from a customer drawing, an official standard graphic or a manufacturer CAD file. Its correspondence to an exact IEC or IEEE symbol identifier has not been certified.
SVG and DXF downloads contain this original artwork. DXF uses unscaled drawing units; a GA envelope supplies no product dimensions, clearances or fabrication information. Original artwork is available under CC BY 4.0. Third-party references retain their own terms.
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