Side-by-side reference

Understand the difference.

Compare the meaning, drawing context and source references of two entries. A similar graphic or shared abbreviation does not establish equivalence.

First referenceCompare with

IEC

Double spark gap

The double spark gap places two gaps in one element, typically from each of two line conductors to a common centre electrode that is earthed. It protects a pair of conductors, such as a telecom pair, with a single component so that both lines are diverted together.

Drawing use: Schematic
Application: Connections & wiring
Reference family: IEC / Manufacturer
Form evidence: Spark Gap, Double. Autodesk IEC-60617 Symbol Preview: Miscellaneous; vendor family reference, not certified IEC geometry.

A distinction that matters

A double spark gap protects two conductors to a common electrode; a single spark gap protects one path.

Full reference

SPARK GAP

Symbols

Spark-gap protective element

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.

Drawing use: SLD / Schematic
Application: Connections & wiring
Reference family: IEC / Manufacturer

A distinction that matters

A spark-gap element and a varistor use different protective mechanisms.

Full reference

Original educational previews. Follow the source references on each full entry for the appropriate standard or selected product.